Answer:
x=229.8
Step-by-step explanation:
We can use a trigonometric ratio to solve for x.
If we use 72 as our reference angle, we can solve for x using cosine: [tex]cos (72)=\frac{71}{x} \\\\x*cos(72)=71\\\\x=\frac{71}{cos(72)}\\ \\x=229.7608=229.8[/tex]
Solve this? jfhbfjiehrfjeirhfghfrjerfhghjrhfgbfjri
PLEASE HELPPPP
WILL GIVE 15 POINTS
Answer: #1 = 15 #2= 5
Step-by-step explanation:
3 x 5/12= 15/12
15 x 1/12=15/12
5 x 3/12=15/12
TRUST ME I'm smart
If you roll a number cube, what is the probability that you will roll an even number?
Answer:
[tex]\frac{1}{2}[/tex]
Step-by-step explanation:
Probability is calculated as
P = [tex]\frac{favourable outcome}{number of outcomes}[/tex]
A favourable outcome is an even number , that is 2, 4, 6 , a total of 3
number of outcomes = 6 , that is 1, 2, 3, 4, 5, 6
Then
P( even number) = [tex]\frac{3}{6}[/tex] = [tex]\frac{1}{2}[/tex]
6. Alima made bubble tea using milk, tea and pearls in the ratio of 4:3:1. If the total weight of the bubble tea made is 1560 g, find the weight of each ingredient used?
Milk, tea and pearls in the ratio of 4:3:1 -> The milk = 4x, tea = 3x and pearls = x
So, 1560g is equal to 4x + 3x + x = 8x
x = 1560 / 8 = 195
3x = 195 x 3 = 585
4x = 195 x 4 = 780
So, she used 780g of milk, 585g of tea and 195g of pearls.
Answer:
Milk= 780g
Tea= 585g
Pearls= 195g
Step-by-step explanation:
So we know that all together there is 1560g. So what we do is add the ratio numbers together which is 4+3+1. This gives us 8. Next, what we can do is how much is 1 (ratio). So we do 1560g/8. This gives us 195g. Now the last step is to multiply 195g with each ratio number given. So milk is represented as 4. So therefore milk would be 4 multiplied by 195g. This means milk= 780g. Tea = 3 multiplied by 195g. Thus, this gives us 585g. The last one which is pearls is 195g as it is multiplied by 1. To check the answer, you can add the three numbers which are 780g+ 585g+195g= 1560g.
WHAT IS THE ANSWER FOR THIS GRADE 6 QUESTION???? 100 POINTS.
Decide whether the function is linear or nonlinear using both a table and a graph. (Pls help I don’t understand)
y =3x+2
Answer:
[tex]\huge\boxed{\sf{Linear}}[/tex]
Step-by-step explanation:
Hello.
This function is linear.
Remember, linear functions look like so:
y=mx+b (where m = slope & b = y-intercept)
Is y=3x+2 linear? Sure!
Compare:
y=mx+b
y=3x+2
They look the same, huh? The only difference is that the first one has variables, and the second one has numbers. ;)
Now, what about the graph?
All linear functions have a graph that looks like a straight line.
I hope it helps.
Have a great day.
[tex]\boxed{imperturbability}[/tex]
Solve 1 x 1
+ 15 = y when x = 2.
Answer:
[tex]18=y[/tex]
Step-by-step explanation:
Assuming that your equation is [tex]1x+1+15=y[/tex], you would first substitute in the 2: [tex](1*2)+1+15=y[/tex]
Next, simplify and combine like terms: [tex]2+16=y[/tex]
Finally, simplify again to get the answer: [tex]18=y[/tex]
PLEASE HELP, 40 POINTS!!!!!!!!!!!!!!!!!!!
Remember that in Cynthia's physics class, she must turn in four lab reports. For each report, she earns extra credit if her percent error is less than 5%.
For her second lab report, she calculated the height of a building four times. She got the following four heights.
6.8 m
7.5 m
8.1 m
7.8 m
The true height of the building is 7 m.
What was Cynthia's percent error?
Remember: Take the average of the three measurements before calculating the percent error.
Answer: 7.86%
Step-by-step explanation:
In its first 5 games, a football team scored 14, 10, 17, 13, and 21 points what is the football teams average?
Answer:
15
Step-by-step explanation:
Sum of points divided by number of games
Globes that were once selling for $20 are now selling for $7. what percentage is th
e discount
Answer:
35%
Step-by-step explanation:
7/20 = 0.35
please mark brainliest
If Sally has 4 apples and Timmy has 6 apples, how many apples are there in total?
[tex]4\\6+[/tex]
▬
[tex]10[/tex]
10
Step-by-step explanation:
6+4=10 its just adding what Sally and timmy have
someone please help. i will mark as brainliest if right :)
Answer:
The other factor is 5x-2
Step-by-step explanation:
Using the factorisation method:
Two numbers that multiply to give -10 and add to give +3:
+5 and -2
[tex]5x^{2} +5x-2x-2[/tex]
[tex]5x(x+1) -2(x+1)[/tex]
[tex](x+1)(5x-2)[/tex]
So the other factor is 5x-2
I'm not sure about the second part of the question but I hope you understood how to deal with the first part.
Simplify the following ratio
12:1
Answer:
12:1
………………………………………………
brainiliest me then i can follow you pleasee
What is the value of the missing angle?
150*
95
95
105
145
0120°
O 1300
O 1550
0720
Answer:
b) 130
Step-by-step explanation:
The total of the internal angles of any simple hexagon (six sides) is 720°.
720 = 150+95+105+145+95+x
720= 590 + x
720 - 590 = x
130 = x
Two semicircles are used to make the shaded shape below. One semicircle has a diameter of 12 cm and the other has a diameter of 20 cm.
Answer:58.272
Step-by-step explanation: This is the answer for maths watch
The perimeter of the shaded shape is 58.29 cm.
Semi-Circles:It is half the circle.Its area is given by A = [tex]\frac{\pi r^2}{2}[/tex] .Its perimeter is given by, P = πr .How to solve the given question?The shaded shape comprises two semi-circles with a diameter of 12cm and 20cm.So, the perimeter of the shaded shape = (perimeter of 12cm diameter semi-circle) + (perimeter of 20cm diameter semi-circle) + (difference of diameter)[tex]P = \pi r_1 + \pi r_2 + (d_1 - d_2)\\P = (\pi \ \frac{20}{2} ) + (\pi \ \frac{12}{2} ) +(20 -12)\\P = \pi ( 10 + 6) +8\\P = 16\pi +8\\P = 58.29 \ cm[/tex]
Thus, the perimeter of the shaded shape is 58.29 cm.
Learn more about perimeter here:
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How many 4-digit personal identification numbers are possible if the number cannot contain a zero? a. 5,040 b. 6,561 c. 9,000 d. 10,000.
The count of 4-digit personal identification numbers possible if the number cannot contain a zero is given by: Option B: 6561
What is the rule of product in combinatorics?If a work A can be done in p ways, and another work B can be done in q ways, then both A and B can be done in [tex]p \times q[/tex] ways.
Remember that this count doesn't differentiate between order of doing A first or B first then doing other work after the first work.
Thus, doing A then B is considered same as doing B then A
For the given case, there are 4 digit locks, each of them can be from {1,2,3,4,5,6,7,8,9}
So each one has 9 options to choose from.
Thus, using the rule of product, we get the total possible personal identification numbers as: [tex]9 \times 9 \times 9 \times 9= 6561[/tex]
Thus, the count of 4-digit personal identification numbers possible if the number cannot contain a zero is given by: Option B: 6561
Learn more about rule of product here:
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Please help me with this with steps
Answer:
(x - y) = 9
Step-by-step explanation:
**Note: we cannot use similar triangle proportionality, as ΔABC is NOT a right triangle**
Using Pythagoras' Theorem a² + b² = c²
(where a and b are the legs and c is the hypotenuse of a right triangle)
Create equations for both smaller interior right triangles using Pythagoras' Theorem:
Larger right triangle
CD² + x² = 17²
⇒ CD² = 17² - x²
Smaller right triangle
CD² + y² = 10²
⇒ CD² = 10² - y²
Equate equations:
CD² = CD²
⇒ 17² - x² = 10² - y²
Given:
AB = 21 and AB = x + y
⇒ x + y = 21
⇒ y = 21 - x
Substitute y = 21 - x into 17² - x² = 10² - y² and solve for x:
⇒ 17² - x² = 10² - (21 - x)²
⇒ 17² - x² = 10² - (441 - 42x + x²)
⇒ 17² - x² = 10² - 441 + 42x - x²
⇒ 289 = 100 - 441 + 42x
⇒ 630 = 42x
⇒ x = 630 ÷ 42
⇒ x = 15
Substitute found value for x into y = 21 - x and solve for y:
⇒ y = 21 - 15 = 6
Finally, substitute found values for x and y into (x - y):
⇒ x - y = 15 - 6 = 9
Please help! 20 points thanks :)
Hello there, offering up to 30 pts please answer this Algebra Question.
Answer: First Solution
Step-by-step explanation:
We can solve this by using the Quadratic Formula, which is
(-b±√b²-4ac)/2a
First off we can find the discriminant. Replacing b with 7, a with 2, and c with -5 gives us a discriminant of 89. But there are two solutions with the discriminant 89.
The second deciding factor would be finding the denominator, which is 2a. Replacing a with 2 gives us 4.
We already know the solution is the first one, but it's important to find the value of the first part of the numerator, -b. Using that we can tell that it's -7, and not 7.
the circle graph shows the restaurant's expenses. If the total expenses are 20,000 how much of that is spent on food PLS HELP I HAVE 15 PTS
Answer:
3,600
Step-by-step explanation:
i took the quiz
please help please ill give brainliest best answer
The first step is to find the area of the figure amd then multiply it by the weight of per metre...
Step 1Area of figure⤵️[tex] \sf \: area = length \times width[/tex]
Length = 60 cm = 0.6 metreWidth = 200 cm = 2 metre[tex] \bf \: area = 0.6 \times 2[/tex]
[tex] \bf \: area = 1.2 \: {m}^{2} [/tex]
Now,Weight of 1 metre² = 0.9 kgSo, The weight of 1.2 m² is;[tex] \tt \: 1.2 \:{m}^{2} = 1.2 \: kg[/tex]
The framework is made up of 5 rods, So the weight will be
1.2 × 5 = 6kg➪ Thus, The weight of theframework is 6 kilograms...~
Which of the following expressions shows the number of 8 character passwords that can be formed using letters and digits if the password must begin with a letter? a. 21 times 36 superscript 7 b. 26 times 36 superscript 7 c. 26 superscript 5 baseline times 10 superscript 3 d. 36 superscript 8.
The number of 8 character passwords that can be formed using letters and digits if the password must begin with a letter is 26×31⁷.
What is Combination?The combination helps us to know the number of ways an object can be arranged without a particular manner. A combination is denoted by 'C'.
[tex]^nC_r = \dfrac{n!}{r!(n-r)!}[/tex]
where,
n is the number of choices available,
r is the choices to be made.
As it is given that the password can only be made with letters or numbers, and we know that there are only 26 letters and there are 10 numbers, therefore, the total option available is 36.
Also, it is given that the first letter of the password can only be made with letters, therefore, there are only 26 options available for the first place in the password.
The number of 8 character passwords that can be formed using letters and digits if the password must begin with a letter,
[tex]= ^{26}C_{1} \times ^{36}C_{1} \times ^{36}C_{1} \times ^{36}C_{1} \times ^{36}C_{1} \times ^{36}C_{1} \times ^{36}C_{1} \times ^{36}C_{1} \\\\= 26 \times 31\times 31\times 31\times 31\times 31\times 31\times 31\\\\= 26 \times 31^7[/tex]
Hence, the number of 8 character passwords that can be formed using letters and digits if the password must begin with a letter is 26×31⁷.
Learn more about Combination:
https://brainly.com/question/11732255
Answer:
B. 26 times 36 superscript 7
Step-by-step explanation:
its the right answer
A sheet of pure aluminum loses heat. What will happen to the aluminum atoms?
A.
The atoms will solidify.
B.
The atoms will evaporate.
C.
Their motion will increase.
D.
Their motion will decrease
PLEASE HELP WILL MARK BRAINLIEST The coordinates (5, 2) and (-6, 2) are vertices of a hexagon. Explain how to find the length of the segment formed by these endpoints. How long is the segment? PLEASE MAKE THE ANSWER SCHOOL APPROPRIATE
Answer:
Let
Point 1 ----------> (5, 2)
Point 2 ----------> (–6, 2)
we know that
the distance between two points it is calculated with the formula
d=√[(y2-y1)²+(x2-x1)²]
then
d=√[(2-2)²+(-6-5)²]
d=√[(0)²+(-11)²]
d=√[121]
d=√121-----------> d=11 units
the answer is 11 units,
Also, The segment is horizontal because the y-coordinates are the same. To find the distance, you can count the spaces between the points. The segment is 11 units long.
At what rate is the temperature decreasing?
Answer:
8 celcius
Step-by-step explanation:
The slope is -8 so it is decreasing by 8
Answer:
8
Step-by-step explanation:
Use two points: (0,40) and (1,32). 40-32=8.
Pls help me I need help
Write the sentence as an equation.
n multiplied by 126 equals the product of 330 and f
can any genius answer
Type a slash ( / ) if you want to use a division sign.
i will give brainliest
Given: P is the midpoint of segment PQ, K is the midpoint of segment JK, angle 1 is congruent to angle 2; and segment PS is congruent to segment KS. Prove: RJMO is a parallelogram.
Answer:
Step-by-step explanation:
Please help!!! The following photo has the questions!!! I have 30 minutes :(
Answer:
15. 10i√3
16. -1
17. 6
18. √35 - 2√5
--------------
3
19. x√35 - 3√7x + 4√5x - 12
20. 9√7
- ---------
14
Step-by-step explanation:
15)
√-300 = √-100 × 3 = 10i√3
16) 5
i^22 = 4√22 = i² = -1
-20
------
2
17)
(√7 + 1) (√7 - 1)
√7 (√7 + 1) - 1 (√7 + 1)
√49 + √7 - √7 - 1
7 - 1 = 6
18)
√5 √7 - 2 √35 + 2√5 √35 - 2√5 √35 - 2√5
--------- x --------- = ------------------ = -------------- = -----------------
√7 + 2 √7 - 2 √49 - 2√7 + 2√7 - 4 7 - 4 3
19)
(√7x + 4)(√5x - 3)
√7x (√5x - 3) + 4 (√5x - 3)
√35x² - 3√7x + 4√5x - 12
x√35 - 3√7x + 4√5x - 12
20)
-√81 -9 √7 -9√7 -9√7
-------- = ------- x ------- = ------- = -------
√28 2√7 √7 2√49 14
I hope this helps!
f(x) = 3x^2+1
1. f(-2) =
Answer:
14
Step-by-step explanation:
f(-2) = 3(-2)² + 1 = 3(4) + 1 = 12 + 1 = 13