Answer:
Wish i could help
Step-by-step explanation:
I'm doing this stuff atm and i don't get it:(
The TV Stan wants for Christmas has an original price of $212. It is on sale with a discount of 40%. What is the amount of the discount?
Answer:
$84.8
Step-by-step explanation:
Amount of discount
[tex] = 40 \% \: of \: 212 \\ \\ = 0.4 \times 212 \\ \\ = \$ 84.8[/tex]
Answer: $84.8
Step-by-Step:
212x.4
It should give you 84.8
So the amount of the discount is $84.80
A tree casts a shadow that is 24 feet long. Brad is five feet tall, and while standing near the tree he casts a shadow that is 4 feet long. How tall is the tree
Answer:
Brads shadow is 3 feet long.
Step-by-step explanation:
In triangle WXY, XY = WX and angle X = 38°. Find angle W.
Answer:
x = 4
Step-by-step explanation:
WX = WY
9x - 11 = 7x - 3..........Then subtract 7x to the other side such that
2x - 11 = -3..........Then add 11 to both sides such that
2x = 8...........Then divide 2 such that
x = 4
What is the equation in slope-intercept form of the line that passes through the points (-4, 47) and (2, -16)?
Answer:
y= -10x + 5
Step-by-step explanation:
i did some math
What is the slope of the line?
Answer:
1/2
Step-by-step explanation:
Answer:
1:2
Step-by-step explanation:
Find the value of 5^-3 times 2^-1
Answer:
0.004
Step-by-step explanation:
I used here's your answer
1) Find d/dt ( sec t/2)
Answer:
[tex]\frac{d}{dt} [sec(\frac{t}{2} )] = \frac{1}{2} sec(\frac{t}{2} )tan(\frac{t}{2} )[/tex]
General Formulas and Concepts:
Calculus
Chain Rule: [tex]\frac{d}{dx}[f(g(x))] =f'(g(x)) \cdot g'(x)[/tex]Trig u derivative: [tex]\frac{d}{dt} [sec(u)] = u'[sec(u)tan(u)][/tex]Step-by-step explanation:
Step 1: Define
[tex]\frac{d}{dt} [sec(\frac{t}{2} )][/tex]
Step 2: Differentiate
Trig u [Chain Rule/Basic Power]: [tex]\frac{d}{dt} [sec(\frac{t}{2} )] = \frac{t^{1-1}}{2} sec(\frac{t}{2} )tan(\frac{t}{2} )[/tex]Simplify: [tex]\frac{d}{dt} [sec(\frac{t}{2} )] = \frac{t^{0}}{2} sec(\frac{t}{2} )tan(\frac{t}{2} )[/tex]Evaluate: [tex]\frac{d}{dt} [sec(\frac{t}{2} )] = \frac{1}{2} sec(\frac{t}{2} )tan(\frac{t}{2} )[/tex]fractions what does 4/14 equals
Answer:
4/14 = 2/7
Step-by-step explanation:
HELPPPP MEEEEE PLEASEEEEEE
Answer:write this down 5-5-x+256=90
Step-by-step explanation:
In a softball league, the male to female ratio is 5:6. If there are 165 members in the league, how many females are in the league?
Answer:
138
Step-by-step explanation:
The total number of females are in the softball league, when there is total 165 members are there in the league is 138.
What is the ratio of two numbers?The ratio of two number is the fraction part, which represent that how a number is more or less compare to the other.
In a softball league, the male to female ratio is 5:6. It can be represented as,
[tex]r=\dfrac{5}{6}[/tex]
This means there are 5 males on 6 females. There are a total number of members in the league is 165. Then the number of females in the league is,
[tex]n=\dfrac{165\times5}{6}\\n\approx 138[/tex]
Thus, the total number of females are in the softball league, when there is total 165 members are there in the league is 138.
Learn more about the ratio of two numbers here;
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What is 3 x 3 -6 x 87 =
Answer:
-513
Step-by-step explanation:
use gemdas (order of operations) to find your answer!
g- groupings
e- exponents
m- multiplication
d- division
a- addition
s- subraction
3 x 3 = 9
6 x 87 = 522
9 - 522 = -513!
Answer:
261
Step-by-step explanation:
First you have to multiply
[tex]3 \times 3 = 9[/tex]
Second you you have to multiply again
[tex]6 \times 87 = 522[/tex]
Finally you have to subtract
[tex]9 - 522 = - 513[/tex]
17. Which is a true statement about the relation?
A The relation is not a function.
B The value of x increases as y decreases.
C The value of x increases as y increases.
D The relation is a linear function.
Answer:
A
Step-by-step explanation:
Doesn’t pass the linear line test. 2 y values for 1 x value
Evaluate the given algebraic expression for x = 2 and y= 3.
-Зху
-6
-12
-18
-24
Answer:
-18
Step-by-step explanation:
-3xy,X=2 ,y=3
-3(2)(3)
-3(6)
=-18
the amount of Rs.1000 at the annual rate 10% is Rs .1200
Answer:
100
Step-by-step explanation:
10/100=0.1
0.1*1000
What is the equation of the line through (-6,-5) and (-4,-4) in slope -intercept form?
Answer:
the answer in the picture is correct
what is the length of the diagonal for the given rectangular prism to the nearest whole unit if the length is 8cm, width 3cm, and height is 7cm
Answer:
168cm
Step-by-step explanation:
Length: 8cm
Width: 3cm
Height: 7cm
I divided 8 and 7 first and got 56.
Next I multiplied 56 and 3 and got 168.
So the length is 168cm
(Hope this helped! <3)
(sorrry if its wrong I feel stupid today)
1. The perimeter of AXYZ is
3 points
M
X
z
13
10
N
Y
18
A 25.5
B. 51
OC91
Answer:
correct answer is A I think
Anton's mechanic charged $75 for a radiator and $50 per hour for labor. The total cost to install the radiator was $325. Approximately how long did it take the mechanic to install the radiator?
Answer: 5 hours
Step-by-step explanation: because 50 multiply by 5 is 250 and more 75 for radiator
mort makes beaded necklaces that he sells for $32 each. about how much will mort make if he sells 36 necklaces at the local art fair?
Answer:
1,216 dollars
Step-by-step explanation:
Do 32 x 38 = 1,216
8. Margaret has completed 3/8 of her research paper. Which decimal represents the part of
her paper she has completed?
Answer:
0.375
Step-by-step explanation:
Here, we want to write the fraction given in its decimal form
What we have is 3/8 and we want to make it a decimal
Mathematically, that would be;
3/8 = 0.375
Help what’s the operation and is it less or more
Answer:
Each student will get more than one burrito
Step-by-step explanation:
This is beause when you divide 6 by 4, you get 1.5. So basically they ech get 1 and a half burrito, which is more than one.
Question
Which is the graph of y= 3/4x-3
Answer:
the answer to the question is c
Answer:
[tex]\huge\boxed{\sf Graph\ C}[/tex]
Step-by-step explanation:
Given equation is:
[tex]\sf y = \frac{3}{4} x -3[/tex]
So, Slope = 3/4 and y-intercept = -3
Let's find the slope and y-intercept for each graph:
[tex]\rule[225]{225}{2}[/tex]
Graph A:
Let's pick two coordinates to find the slope:
Coordinates are (5,1) and (0,-3)
[tex]\sf Slope = \frac{y2-y1}{x2-x1} \\\\Slope = \frac{-3-1}{0-5} \\\\Slope = \frac{-4}{-5} \\\\Slope = \frac{4}{5}[/tex]
So, This is not the required Graph.
[tex]\rule[225]{225}{2}[/tex]
Graph B:
Graph B is also not the required graph because it's y-intercept is 3 and not -3 (y-intercept is the point where the value of y is zero)
[tex]\rule[225]{225}{2}[/tex]
Graph C:
The left graph is graph C. So, This is the correct answer!
[tex]\rule[225]{225}{2}[/tex]
Hope this helped!
~AH1807PLEASE ANSWER THIS AS SOON AS POSSIBLE
What is the solution of the equation -7b=21
❑ -147 Dr. Alpha was reading by the pool.
❑ -3 Coach Omega was using a computer in the library.
❑3 The murder was not an assault with a firearm.
❑ 28 The murder was not done by chemical poisoning.
Answer:
-3
Step-by-step explanation:
Arrange the numbers in order from least to greatest.
-310, 2, -1.5, 25, 210
Answer:
-310, -1.5, 2, 25, 210
Step-by-step explanation:
Hope that helps
The product of a complex number and its complex
conjugate is
a real number.
(a+bi)(a - bi) = a? – (biº) = a + b2
Answer:
see explanation
Step-by-step explanation:
Given a complex number a + bi and its conjugate a - bi , a, b ∈ R, then the product is
(a + bi)(a - bi) ← expand using FOIL
= a² - abi + abi - b²i² [ i² = - 1 ]
= a² - b²(- 1)
= a² + b² ← a real number
Answer:
a^2 + b^2
Step-by-step explanation:
The product of a complex number and its complex
conjugate is
a real number.
(a+bi)(a - bi)
Recall the formula for the product of a binomial and its conjugate:
(a + b)(a - b) = a^2 - B^2
Then:
The product of a complex number and its complex
conjugate is
a real number.
(a+bi)(a - bi) = a^2 - (bi)^2 = a^2 - b^2(-1) = a^2 + b^2
Given that 3 feet equal 1 yard, how many yards
equal 7 feet?
Answer:
7/3
Step-by-step explanation:
because 3/7 is less then two
The correct option is B. 7/3
Given that 3 feet equal 1 yard, to find out how many yards equal 7 feet,
To convert a length in feet into yards, we need to use the conversion factor that states 1 yard is equal to 3 feet. If a length of "a" feet, you can convert it into yards by dividing "a" by 3.
For example, convert 12 feet it into yards.
Using the conversion factor, set up the proportion:
3 feet / 1 yard = 12 feet / s yards
To find the value of "s," by cross-multiplication
3 feet x s yards = 12 feet x 1 yard
3s = 12
Dividing both sides of the equation by 3:
s = 12/3
s = 4
Thus, 12 feet is equal to 4 yards.
Set up a proportion using the ratio of feet to yards.
Let "x" represent the unknown number of yards that is equivalent to 7 feet. The proportion can be written as:
3 feet / 1 yard = 7 feet / x yards
To solve for "x," by cross-multiplication,
3 feet x x yards = 7 feet x 1 yard
3x = 7
Dividing both sides of the equation by 3:
x = 7/3
So, 7 feet is equal to 7/3 yards, which can also be expressed as 2 and 1/3 yards or approximately 2.33 yards.
Therefore, 7 feet is equivalent to 7/3 yards.
Hence, the correct option is B. 7/3
Learn more about unit conversion and proportions, click here:
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Prove that the triangle with vertices P(-4,0), Q(3,5), and R(8,-2) is a right triangle.
Answer:
does this help?
Step-by-step explanation:
PR=9+4+36−−−−−−−−√=7
PQ=36+9+4−−−−−−−−√=7
RQ=1+25+64−−−−−−−−−√=98−−√
PQ2+RQ2=49+49=98
As the triangle satisfies the Pythagoras's theorem, it is a right angled triangle.
What is Pythagoras Theorem?According to Pythagoras Theorem, in a right angled triangle the square of the side opposite to the right angle is equal to the sum of squares of the other two sides.
Height² + Base² = Hypotenuse²
For a triangle to be a right triangle, it should satisfy Pythagoras's Theorem.
The length of the sides of the triangle will be determined using Distance formula.
PQ² = ( 3 - (-4))² + (5-0)²
PQ² = 49 + 25
PQ² = 74
QR² = ( 8 - 3)² + (-2-5)²
QR² = 25 + 49
QR² = 74
RP² = (-4 - 8)² + ( 0 +2)²
RP² = 144+4
RP² = 148
Now checking for Pythagoras theorem,
148 = 74 +74
148 = 148
RP² = PQ²+QR²
To know more about Pythagoras Theorem
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6. Which equation, in point-slope form, passes through (–2, 4) and has a slope of 3?
you are traveling 2 miles per hour. where will you in 0.5 hours
Answer:
1 mile
Step-by-step explanation:
0.5 hrs is 1/2 hrs
so 1/2 *2 + 1 mile
HELPPP PLEASEEE!!!
The triangles below are congruent and their corresponding parts are marked.
С
Z
А
B
Y
Answer:
b
Step-by-step explanation: