Answer:D
Step-by-step explanation: It is D because -4 is < to -2
16. Two numbers, n and p are plotted on the number line shown,
The numbers n-p.n.p. and p-n will be plotted on the number line.
Select an expression from each list to make this statement true.
The number with the least value is.
and the number with the greatest value is
Mathematics-Session 1
n-p
n+p
p-n
n-p
n+p
p-n
The number with the least value is n - p and the number with the greatest value is p - n.
How to determine the least value and the greatest value?Based on the number line (see attachment), we would assign a numerical value to the two numbers, n and p in order to determine their output (numerical value).
Assuming the variable n represents the numerical value -0.8 and the variable p represents the numerical value 0.4, we would evaluate each of the given mathematical expressions as follows;
n - p = -0.8 - 0.4
n - p = -1.2 (least value).
For the second mathematical expressions, we have the following numerical value:
n + p = -0.8 + 0.4
n + p = -0.4
For the third mathematical expressions, we have the following numerical value:
p - n = 0.4 - (-0.8)
p - n = 0.4 + 0.8
p - n = 1.2 (greatest value).
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1. In ΔABC, m < C = 620, a = 18 and b = 17. Find the length of side c, to the nearest integer.
2. In a rhombus whose side measures 20 and the smaller angle is 54°, find the length of the larger diagonal, to the nearest tenth.
3. Three sides of a triangle measure 10m, 12m, and 20m. Find the largest angle of the triangle, to the nearest degree.
4. In ΔABC, m < C = 340, a = 30 and b = 19. Find the length of side c, to the nearest integer.
5. In a rhombus whose side measures 20 and the smaller angle is 38°. Find the length of the larger diagonal, to the nearest tenth.
6. Three sides of a triangle measure 12m, 16m, and 18m. Find the largest angle of the triangle, to the nearest degree.
7. In ΔABC, m < C = 580, a = 20 and b = 18. Find the length of side c, to the nearest integer.
8. In a rhombus whose side measures 18 and the smaller angle is 34°, find the length of the larger diagonal, to the nearest tenth.
All measures of sides and angles are listed below:
c ≈ 18 D ≈ 35.6 α ≈ 131° c ≈ 18 D ≈ 37.8 α ≈ 79° c ≈ 19 D ≈ 34.4How to resolve triangles by trigonometry
In this problem we should use trigonometry and theorems regarding triangles to determine missing sides and angles (i.e. Law of sine, law of cosine).
Case 1
Two sides and an angle opposite to unknown side are known and missing side length is found by law of cosine:
c = √(a² + b² - 2 · a · b · cos C)
Where:
a, b, c - Sides of the triangle.C - Missing angle of the triangle, in degrees.(C = 62°, a = 18, b = 17)
c = √(18² + 17² - 2 · 18 · 17 · cos 62°)
c ≈ 18.046
c ≈ 18
Case 2
The larger diagonal of a rhombus bisects the two smaller angles of quadrilateral. The length of the larger diagonal of a rhombus is found by the following formula:
D = 2 · a · cos 0.5α
Where:
D - Length of the larger diagonal.a - Side length.α - Measure of the smaller angle, in degrees.(a = 20, α = 54°)
D = 2 · 20 · cos 27°
D ≈ 35.640
D ≈ 35.6
Case 3
According to the law of cosine, the greater the side length, the greater the angle opposite to it:
20² = 10² + 12² - 2 · 10 · 12 · cos α
Where α is the angle opposite to the larger side, in degrees.
400 = 244 - 240 · cos α
156 = - 240 · cos α
cos α = - 13 / 20
α ≈ 130.541°
α ≈ 131°
Case 4
By using the approach used in case 1:
(C = 34°, a = 30, b = 19)
c = √(30² + 19² - 2 · 30 · 19 · cos 34°)
c ≈ 17.773
c ≈ 18
Case 5
By using the approach used in case 2:
(a = 20, α = 38°)
D = 2 · 20 · cos 19°
D ≈ 37.820
D ≈ 37.8
Case 6
By using the approach used in case 3:
18² = 12² + 16² - 2 · 12 · 16 · cos α
324 = 400 - 384 · cos α
- 76 = - 384 · cos α
cos α = 19 / 96
α ≈ 78.585°
α ≈ 79°
Case 7
By using the approach used in case 1:
(C = 58°, a = 20, b = 18)
c = √(20² + 18² - 2 · 20 · 18 · cos 58°)
c ≈ 18.506
c ≈ 19
Case 8
By using the approach used in case 2:
(a = 18, α = 34°)
D = 2 · 18 · cos 17°
D ≈ 34.427
D ≈ 34.4
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The finite region bounded by y=12-2x^2 and y=x^2-8. (This is for area between curves, Calculus)
Answer:
≈ 68.8530
Step-by-step explanation:
You want the area between the curves y = 12 -2x² and y = x² -8.
AreaThe area will be the integral of the difference between the curves, between the points where the curves intersect.
h(x) = (12 -2x²) -(x² -8) = 20 -3x² . . . . . height of a differential of area
The point where the curves intersect has an x-value that makes h(x) = 0. We choose to call the positive value 'a'. The curves also intersect at x=-a.
h(a) = 0
20 -3a² = 0
a² = 20/3
a = √(20/3) = (2/3)√15
So, the integral is ...
[tex]\displaystyle A=\int_{-a}^a{(20-3x^2)}\,dx=\left(20x-\dfrac{3x^3}{3}\right)_{-a}^a\\\\A=2a(20-a^2) = \dfrac{4}{3}\sqrt{15}\cdot\left(20-\dfrac{20}{3}\right)\\\\A=\boxed{\dfrac{160\sqrt{15}}{9}\approx68.8530}[/tex]
The area between the curves is about 68.8530 square units.
What is the vertex of the graph y = |x + 2| + 3?
Answer:
(-2, 3)
Step-by-step explanation:
The vertex of an absolute value function is when the part of the equation that is inside absolute value signs is equal to 0:
In the equation: y = |x + 2| + 3,
x + 2 = 0 ==> x + 2 is the part that is inside the absolute value signs
x = -2 ==> subtract 2 on both sides
Now, plugin -2 into the equation y = |x + 2| + 3:
y = |(-2) + 2| + 3
y = |0| + 3
y = 0 + 3 ==> the absolute value of 0 is 0.
y = 3
Now with the x and y-coordinates, we can figure out the vertex point:
Answer: (-2, 3)
Let U = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9} be the universal set.
Let sets A and B be subsets of U, where:
A = {2, 3, 9}
B = {0, 1, 3, 5, 6, 8}
Write
¯¯¯
A
A
¯
:
¯¯¯
A
A
¯
=
Write
¯¯¯
B
B
¯
:
¯¯¯
B
B
¯
=
Write
A
∪
B
A
∪
B
:
A
∪
B
A
∪
B
=
Write
A
∩
B
A
∩
B
:
A
∩
B
A
∩
B
=
Write your answer using proper set notation. If the result is the empty set, enter { }
The elements of the sets are;
A¹ = { 0, 1, 4, 5, , 7 , 8 }
B¹ = { 2, 4, 7 , 9}
AUB = { 0, 1, 2 , 3, 5 , 6, 8, 9}
A∩B = { 3}
How to determine the value
From the information given, we have the parameters;
The universal setA, a subset of the universal setB, a subset of the universal setGiven that;
U = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}
A = {2, 3, 9}
B = {0, 1, 3, 5, 6, 8}
To determine primes of the subset represented as A¹
A¹ = elements uncommon between A and the universal set;
A¹ = { 0, 1, 4, 5, , 7 , 8 }
B¹ = elements uncommon between B and the universal set
B¹ = { 2, 4, 7 , 9}
AUB = all the elements in the set without repetition
AUB = { 0, 1, 2 , 3, 5 , 6, 8, 9}
A∩B = elements common in A and B
A∩B = { 3}
Hence, the elements in A∩B = {3}
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joe has 8/9 kilograms of clay. He uses 3/4 to make a vase. how much clay is left. How do I start helping my 10 year old solve this? thx!
Using the provided ratio of the clay and the proportions used to make a vase with the values given, The answer is 2/9.
What is a ratio?A ratio is a way of comparing two or more quantities by using division. It is a way of expressing a relationship between numbers, typically represented by a fraction. The numbers being compared are called the "terms" of the ratio. For example, a ratio of 3:5 compares the value of 3 to the value of 5. It can also be written as 3/5. Ratios can be used to compare many different types of quantities, such as lengths, weights, or time. Ratios are also used to express the relationship between different parts of a whole, for example, the ratio of girls to boys in a class, or the ratio of water to flour in a recipe.
Here,
A proportion is a statement that two ratios are equivalent. It is an equation that compares two ratios to see if they are equal. Proportions are written in the form of "a/b = c/d" where a, b, c, and d are numbers. For example, "3/5 = 6/10"
is a proportion because it states that the ratio of 3 to 5 is equal to the ratio of 6 to 10. A proportion can also be used to find a missing value when we have a proportion and the value of three of the terms. This method is called cross-multiplication.
Here,
clay used = 3/4 of 8/9
=2/3
remaining clay = 8/9 - 2/3 = 2/9
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need help asap! im confused, i dont get the question.
1/3 - inch cubes across the bottom layer = 30
the number of layers is 9
Total number of 1/3-inch cubes 270 cubes
How to find the number of cubes across the bottom layerThe small cube inside has a dimension of 1/3
The area of the cube is 1/3 * 1/3 = 1/9
the area of the bottom layer is 2 * 1 2/3 = 10/3
the number of small cubes across the bottom is
= 10/3 / 1/9
= 30
The number of layers is calculated by division
= total height of layers / 1/3-inch side of the cube
= 3 / 1/3
= 9 layers
Total number of 1/3-inch cube
= 30 * 9
= 270 cubes
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What is the answer 3(x-4)=12x.
Ujarak has 100 mL of a strong toothpaste with a 1.1% concentration of sodium fluoride. They have a weaker toothpaste with a 0.3% concentration of sodium fluoride. What volume, in milliliters, of the weaker toothpaste would Ujarak need to add to the strong toothpaste to create a blend with 0.8% components of sodium fluoride?
Distribute to create an equivalent expression with the fewest symbols possible.
1
— (3j + 6) =
3
The equivalent of the expression of the given expression (1/3) x (3j + 6) will be j + 2.
What is an equivalent expression?The equivalent is the expression that is in different forms but is equal to the same value.
The definition of simplicity is making something simpler to achieve or grasp while also making it a little less difficult.
The expression is given below.
⇒ (1/3) x (3j + 6)
Simplify the expression, then we have
⇒ (1/3) x (3j + 6)
⇒ j + 2
The equivalent of the expression of the given expression (1/3) x (3j + 6) will be j + 2.
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laster
10. To prepare for a downhill skiing competition,
Roman completed three training sessions. The
table shows his average time and distance for
each session. Did Roman's rate, in miles per
hour, increase from session to session? Write an
argument that can be used to defend your
solution.
per hr.
50
Session
1
2
3
Time (hr)
2
125
3
200
3
250
Distance (mi)
9
10
11
12
17
20
Yes, Roman's rate, in miles per hour, increase from session to session.
What is the speed?The speed formula can be defined as the rate at which an object covers some distance. Speed can be measured as the distance travelled by a body in a given period of time. The SI unit of speed is m/s.
A) Given that, time =2/125 and distance =9/10
So, speed = Distance/Time
= 9/10 ÷ 2/125
= 9/10 × 125/2
= 56.25 miles per hour
B) Time =3/200 and Distance =11/12
Speed = 11/12 ÷ 3/200
= 12/11 × 200/3
= 72.73 miles per hour
C) Time =3/250 and Distance =17/20
Now, speed =17/20 ÷ 3/250
= 17/20 × 250/3
= 70.83 miles per hour
Yes, Roman's rate, in miles per hour, increase from session to session.
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Determine the number of triangles ABC possible with the given parts.
A = 42° a = 8.2 b = 10.4
How many possible solutions does this triangle have?a
The number of possible triangles for the given measurement are two.
What is a triangle?A polygon with three sides, vertex and angles refers as a triangle.
Given that, a triangle ABC, where, A = 42° a = 8.2 b = 10.4
We know that, we can determine, how many solutions there will be by using relation between a and bsinA
a > bsinA = two solutions
a < bsinA = no solution
a = bsinA = one solution
Finding relation between a and bsinA
a = 8.2 and b = 10.4 and A = 42°
bsinA = 10.4×sin42°
= 6.96
This gives, bsinA < a
Therefore, we get the case 1st,
Hence, The number of possible triangles is 2.
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Schedule Z-If your filing status is Head of household If your taxable income is: n Over- $0 13,850 52,850 84,200 160,700 204,100 510,300 But not over- $13,850 52,850 84,200 160,700 204,100 510,300 The tax is: 10% $1,385.00 +12% 6,065.00 +22% 12,962.00 +24% 31,322.00+ 32% 45,210.00+ 35% 152,380.00 + 37% Calculate the tax for each taxable income of a head of household.
a. $400,000
b. $10,954
c. $108,962
d. $209,850
The taxes paid for each taxable income is given as follows:
a. $400,000: $113,775.
b. $10,954: $1,095.4.
c. $108,962: $18,904.88.
d. $209,850: $47,222.5.
How to obtain the amount of taxes?The amount of taxes is obtained identifying the correct interval in the table and then applying the proportions.
For a taxable income of $400,000, the tax is of $45,210 plus 35% of the income over $204,100, hence:
45210 + 0.35(400000 - 204100) = $113,775.
For a taxable income of $10,954, the tax is a simple 10%, hence:
0.1 x 10954 = $1,095.4.
For a taxable income of $108,962, the tax is of 12962 plus 24% over 84,200, hence:
12962 + 0.24 x (108962 - 84200) = $18,904.88.
For a taxable income of $209,850, the tax is of $45,210 plus 35% of the income over $204,100, hence:
45210 + 0.35(209850 - 204100) = $47,222.5.
Recapping, we identify between which two values the taxable income is located, and then apply the tax rule defined by the table for the range in which the income is located.
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8. What is the value of x in the diagram?
A
E
429
B
49
D
32°C
Answer:
D. [tex]10^{\circ}[/tex]
Step-by-step explanation:
Let the measure of minor arc [tex]AE[/tex] be [tex]\alpha[/tex] and the measure of minor arc [tex]BD[/tex] be [tex]\beta[/tex].
Using the secant-secant theorem, [tex]\frac{\alpha-\beta}{2}=32 \implies \alpha-\beta=64^{\circ}[/tex].
By the inscribed angle theorem, [tex]\alpha=84^{\circ}[/tex].
Thus, [tex]\beta=20^{\circ}[/tex].
By the inscribed angle theorem, [tex]x=10^{\circ}[/tex].
What does it mean for a number to be a solution to the inequality x < 24?
Answer:
Step-by-step explanation:
A solution to the inequality x < 24 is a value of x that makes the inequality true when it is substituted into the expression. In other words, when x is a solution to the inequality x < 24, it must be less than 24.
For example, some solutions to the inequality x < 24 include -5, 0, 23.5, and any other value that is less than 24. However, the numbers like 24 and greater than 24 are not solutions to the inequality x < 24.
Which of the following statements must be true about this diagram? Check all that apply.
A. m<3 is greater than m<2
B. m<4 is greater than m<1
C. m<4 is greater than m<2
D. The degree measure of <3 equals the sum of the degree measures of <1 and <2.
E. The degree measure of <4 equals the sum of the degree measures of <1 and <2.
F. the degree measure of <4 equals the sum of the degree measures of <2 and <3.
The statements that must be true about this diagram will be ∠4 > ∠1, ∠4 > ∠2, and ∠4 = ∠1 + ∠2. Then the correct options are B, C, and E.
What is the triangle?The polygonal shape of a triangle has a number of sides and three independent variables. Angles in the triangle add up to 180°.
The exterior angle of a triangle is almost always equal to the addition of the interior and opposing interior angles. The term "external angle property" refers to this feature.
By the above theorem, the equation is given as,
∠4 = ∠1 + ∠2
The statements that must be true about this diagram will be ∠4 > ∠1, ∠4 > ∠2, and ∠4 = ∠1 + ∠2. Then the correct options are B, C, and E.
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The missing diagram is attached below.
graph the function g(x)=2f(x+1)-2
The graph of the equation g(x) = 2(x + 1) - 2 on the coordinate plane is added as an attachment
How to graph the equation on the coordinate plane.From the question, we have the following parameters that can be used in our computation:
g(x) = 2f(x + 1) - 2
Also, we have
f(x) = 2x
Recall that, we have
g(x) = 2f(x + 1) - 2
Using the above as a guide, we have the following:
f(x) = 2x
Add 1 to x
So, we have
f(x + 1) = 2(x + 1)
Subtract 2 from the function
So, we have
f(x + 1) - 2 = 2(x + 1) - 2
Substitute f(x + 1) - 2 = 2(x + 1) - 2 in g(x) = 2f(x + 1) - 2
g(x) = 2(x + 1) - 2
Next, we plot the graph of the function
See attachment for the graph
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Simplify the expression x^-2/y^4
The value of the expression is 1 / (x² [tex]y^4[/tex]).
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example: 2 + 3x + 4y = 7 is an expression.
We have,
[tex]x^{-2}[/tex] / [tex]y^4[/tex]
[tex]x^{-2}[/tex] can be written as 1/x².
Now,
(1/x²)/[tex]y^4[/tex]
= 1 / (x² [tex]y^4[/tex])
Thus,
The value is 1 / (x² [tex]y^4[/tex]).
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265+(65-152)+9845 = ?
Please help me answer this question. Thank you!
Answer:
10023
Step-by-step explanation:
265 + ( - 87 ) + 9845
= 178 + 9845
= 10023
URGENT!! ILL GIVE
BRAINLIEST!!!! AND 100
POINTS!!!
The matched statements are:
1↔a, 2↔c, 3↔b, 4↔d
What is mensuration ?Mensuration is the branch of mathematics that studies the measurement of geometric figures and their parameters like length, volume, shape, surface area, lateral surface area, etc.
Given radius (r) of the cylinder, cone and sphere = r
Height (h) of the cone and cylinder = 2r
Volume of cylinder = πr²h
⇒π(r²)(2r)
⇒2πr³
Volume of cone = 1/3 πr²h
⇒1/3π(r²)2r
⇒2/3 πr³
Volume of sphere = 4/3 πr³
⇒4/3 πr³
From the above calculation we can match the given question:
1. The volume of 3 cones = 3×2/3πr³ = 2πr³ ↔ a) The volume of 1 cylinder
2.The volume of 2 cones = 2×2/3πr³=4/3πr³ ↔ c)
The volume of 1 sphere
3. The volume of 1 sphere ↔ b) 2/3 volume of 1 cylinder = 2/3×2πr³=4/3πr³
4. The volume of 1 cone ↔ d) 1/3 volume of 1 cylinder = 1/3×2πr³=2/3πr³
Hence, by the above calculation the matched statements are as follows:
1↔a, 2↔c, 3↔b, 4↔d.
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Write down the coordinates of the point of intersection of the two lines whose equations are 3x+2y=10 2x-6y=3 (1 mark)
Answer:
(3, [tex]\frac{1}{2}[/tex] )
Step-by-step explanation:
to find the point of intersection, solve the equations simultaneously.
3x + 2y = 10 → (1)
2x - 6y = 3 → (2)
multiplying (1) by 3 and adding to (2) will eliminate y
9x + 6y = 30 → (3)
add (2) and (3) term by term to eliminate y
11x + 0 = 33
11x = 33 ( divide both sides by 11 )
x = 3
substitute x = 3 into either of the 2 equations and solve for y
substituting into (1)
3(3) + 2y = 10
9 + 2y = 10 ( subtract 9 from both sides )
2y = 1 ( divide both sides by 2 )
y = [tex]\frac{1}{2}[/tex]
solution is (3, [tex]\frac{1}{2}[/tex] )
What is the value of jk
The value of JK is 30
What is quadrilateral?A quadrilateral in geometry is a four-sided polygon with four edges and four corners.
Given;
JKLM and PQRS are shown, where JKLM is similar to PQRS. Some measurements of the sides of JKLM and PQRS are given.
MJ = 21, JK = 4y-2, KL = 6x +3, LM = 36, PQ = 10, QR = 11, and RS = 12.
So,
JK is similar to PQ.
JK / PQ = LM / RS
4y-2 /10 = 36 / 12
4y -2 = 30
4y = 32
y = 8
So, the value of JK is 4(8) - 2
JK = 30.
Therefore, 30 is the value of JK.
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Write an equation of the line that passes through the given points.
(-1,5) and (2,-7)
The equation is ______. (Type your answer in slope-intercept form.)
The equation of the line that passed through the points, can be found to be y = -4 x + 1
How to find the equation of a line ?The equation of a line takes the form:
y = mx + b
m = slope
b = y - intercept
The slope is:
= ( Y2 - Y1 ) / ( X 2 - X 1 )
Given the points, (-1,5) and (2,-7), the slope is:
= ( - 7 - 5 ) / ( 2 - ( - 1 ))
= - 12 / 3
= - 4
The y - intercept can be found by plugging in the slope and the value of a point into the equation:
- 7 = -4 ( 2 ) + b
b = -7 + 8
b = 1
The equation is therefore:
y = -4 x + 1
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hypotenuse of a triangle is 4 times longer than the shorter leg. the longer leg is 4sqrt15 cm. Find the hypotenuse
The hypotenuse of this triangle is equal to 16√5 cm.
What is Pythagorean theorem?In Euclidean geometry, Pythagorean's theorem is given by this mathematical expression:
a² + b² = c²
Where:
c represents the hypotenuse of a right-angled triangle.a represents the adjacent side (shorter leg) of a right-angled triangle.b represents the opposite side (longer leg) of a right-angled triangle.Note: c = 4a
Substituting the given parameters into the Pythagorean's theorem formula, we have the following;
a² + b² = c²
a² + (4√15)² = 4a²
4a² - a² = (4√15)²
3a² = 240
a² = 80
a = 4√5 cm.
For the hypotenuse, we have:
Hypotenuse, c = 4a
Hypotenuse, c = 4(4√5)
Hypotenuse, c = 16√5 cm.
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Answer:
Hypotenuse : 16cm
Shorter leg of triangle: 4cm
Step-by-step explanation:
So, we are told [tex]4\sqrt{15}[/tex] is the longer leg, let's say this is a.
[tex]4\sqrt{15} = \sqrt{240}[/tex], the Pythagorean is [tex]a^2+b^2=c^2[/tex], we'll say b = shortest leg, which is what we're solving for.
Since the hypotenuse (c), is 4 times b I changed it to 4b in my equation.
[tex]\sqrt{240} + b = 4b[/tex], square this to get [tex]240 + b^2 = 16b^2[/tex], -b^2 on both sides
[tex]240=15b^2[/tex], then divide by 15. [tex]16=b^2[/tex], use square root and you get [tex]4 = b[/tex]
hope this helps. btw since hypotenuse is 4 times b, just do 16cm, but your answer is 4 cm
Application
3. Compare the variety of vehicles detailed below. Each vehicle travels 15,000 km per year.
a. Complete the following table and graph the points on the given grid.
The completed table of values obtained by using the data and the values per 100 km is presented as follows;
3 a. [tex]\begin{array}{|c|c|c|c|}L \ per \, 100\, km & Litres \ used&L\, per \, 100\, km&Litres\ used \\23.5 &3525&3.9&585 \\11.7 & 1755 & 3.4&510\\7.8 & 1170&2.9&435 \\5.9 &885&2.6&390 \\ 4.7&705&2.3&345 \\\end{matrix}[/tex]
What is a data set?A dataset is a collection of information which are related but contains elements of different values, and can be analyzed or manipulated through the use of computation methods.
The table of values is completed using the following calculations;
The distance each vehicle travels in a year = 15,000 km
The amount of fuel each vehicle uses is calculated as follows;
First car;
1. L per 100 km = 23.5 L
Liter used per year = 15,000 km/(100 km) × 23.5 L = 3525 L
2. L per 100 km = 11.7 L
Liter used per year = 15,000 km/(100 km) × 11.7 L = 1755 L
3. L per 100 km = 7.8 L
Liter used per year = 15,000 km/(100 km) × 7.8 L = 1170 L
4. L per 100 km = 5.9 L
Liter used per year = 15,000 km/(100 km) × 5.9 L = 885 L
5. L per 100 km = 4.7 L
Liter used per year = 15,000 km/(100 km) × 4.7 L = 705 L
6. L per 100 km = 3.9 L
Liter used per year = 15,000 km/(100 km) × 3.9 L = 585 L
7. L per 100 km = 3.4 L
Liter used per year = 15,000 km/(100 km) × 3.4 L = 510 L
8. L per 100 km = 2.9 L
Liter used per year = 15,000 km/(100 km) × 2.9 L = 435 L
9. L per 100 km = 2.6 L
Liter used per year = 15,000 km/(100 km) × 2.6 L = 390 L
10. L per 100 km = 2.3 L
Liter used per year = 15,000 km/(100 km) × 2.3 L = 345 L
The above values are used to complete the table as shown in the main section of the page above;
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simplify √2+√5/√2−√5
The simplified value of the expression is -7/3 - 2√10/3.
What is simplification?To simplify means to make anything easier. In mathematics, simplifying an equation, fraction, or problem means taking it and making it simpler. Calculations and problem-solving techniques simplify the issue. By eliminating all common factors from the numerator and denominator and putting the fraction in its simplest/lowest form, we can simplify fractions.
Given (√2 + √5)/(√2 - √5)
simplifying the expression by rationalization
multiply and divide by (√2 + √5)
= (√2 + √5)/(√2 - √5) x (√2 + √5)/(√2 + √5)
= (√2 + √5)²/((√2)² - (√5)²)
using property (a + b)² = a² + b² + 2ab
= (2 + 5 + 2√10)/(2 - 5)
= -(7 + 2√10)/3 = -7/3 - 2√10/3
Hence the simplified form is -7/3 - 2√10/3.
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Round 2484 to the nearest thousand
Answer: 2000
Step-by-step explanation: First, let's focus on the number 484. Let's always ask ourselves this: "Is this number (484 in our case) greater than 500?"
I say 500 because that's the number that we start to round up to the nearest thousandth. So, 484 is less than 500, telling us to round down.
So, therefore 2484 rounded to the nearest thousand is 2000. I hope this helped.
The point (-6,4) is reflected over the point (1,-1) and it’s image is point B. What are the coordinates of point B?
The coordinates of point B are (8, -6).
What is midpoint?
The midpoint of a boundary is a point that is in the middle of, close to, or equally spaced from both ends of a line. the middle of something, as in the middle of a process, an event, or a situation: the middle of the negotiations. Geometry.
Given:
The point (-6,4) is reflected over the point (1,-1) and it’s image is point B.
We have to find the coordinates of point B.
Let the point (1, -1) be Midpoint M, and point B has coordinates of (x, y)
As the point A(-6, 4) reflects over the point M, it becomes the midpoint of segment AB
Using midpoint formula, finding the coordinates of the point B
[tex]1 = \frac{-6+x}{2} , -1 = \frac{4+y}{2} \\2 = -6 + x, -2 = 4 + y[/tex]
8 = x , -6 = y
x = 8, y = -6
Hence, the coordinates of point B are (8, -6).
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PLEASE HELP please..
The distance across the lake is as follows;
d = 45 m.
How to find the side of similar triangle?Similar triangle are the triangles that have corresponding sides in proportion to each other and corresponding angles equal to each other.
Therefore, let's find the side d of the similar triangles DBA and ECA.
Hence, using proportion,
d / 30 = 145 + 290 / 290
d / 30 = 435 / 290
cross multiply
290d = 435 × 30
290d = 13050
divide both sides by 290
d = 13050 / 290
d = 45
Therefore,
d = 45 meters
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It costs $2.50 to rent bowling shoes. Each
game costs $2.25. You have $9.25. Write
and solve an equation to find out how
many games you can bowl.
Answer:
1.93
Step-by-step explanation:
Let G be the number of games you can bowl.
The cost to rent bowling shoes and play each game is 2.50 + 2.25 = $<<2.5+2.25=4.75>>4.75.
So the equation would be:
4.75G = 9.25
To solve the equation, we can divide both sides by 4.75:
G = 9.25 / 4.75
G = 1.93
You can bowl 1.93 games.