When reflected over the x-axis and then dilated by a scale factor of 2 the points become (0,8), (-4,8), (-2,14) and (2,14). We need to know about reflection about axes and dilation.
When a point is reflected about the x-axis the x-coordinate remains same but the sign of the y-coordinate changes.When a point is reflected about the y-axis the sign of the x-coordinate changes while the y-coordinate remains same.When a point is reflected about the origin the sign of both the x-coordinate and the y-coordinate changes. Dilating a figure means changing it's shape or size by a scaling factor, the points are multiplied by the corresponding scaling factor. In this question we have to reflect the points about x-axis and dilate by a scale factor of 2. When the points will be reflected about the x-axis the new points will be (0,4) , (-2,4) , (-1,7) and (1,7). Then we have to dilate by a factor of 2, the final points will be (0,8), (-4,8) ,(-2,14) and (2,14).
After reflecting over x-axis and then dilating by a scale factor of 2 the points (0,-4), (-2,-4), (-1,-7) and (1,-7) become (0,8), (-4,8), (-2,14) and (2,14).
Learn more about reflection about axes from here:
https://brainly.com/question/10482142
#SPJ9
What is the diameter of a sphere with a volume of 15276 cm", to the nearest tenth
of a centimeter?
Answer:
15.4
Step-by-step explanation:
15276 = 4/3 πr³
11457 = πr³
3646.88 = r³
15.4 = r
Answer:
30.8
Step-by-step explanation:
A boy scout troop is selling bags of popcorn and boxes of cookies to fund their troops next trip. The popcorn sells for 10 dollars a bag and the cookies sell for 5 dollars a box. The troop sells 32 items and makes 210 dollars. Write a system that could be used to determine how much popcorn and cookies the troop sold.
Answer:
c + p = 32
5c + 10p = 210
Step-by-step explanation:
Given that :
Cost of popcorn per bag = $10
Cost of. Cookies per box = $5
Total items sold = 32
Total.amout made = $210
Let number of cookies = c ; number of popcorn = p
c + p = 32
5c + 10p = 210
c = 32 - p
5(32 - p) + 10p = 210
160 - 5p + 10p = 210
5p = 50
p = 10
c = 32 - p
c = 32 - 10
c = 22
y=2,y=-1/2 thats the equation but it told me to write more idk why
More information is needed.
please helppppppppp!!!!
Solve for all values of x by factoring.
x^2– 25 = 0
Answer:
Step-by-step explanation:
a²-b²=(a+b)(a-b)
x²-25=0
x²-5²=0
(x+5)(x-5)=0
x=-5,5
Find angles in triangles
Find the value of x in the triangle shown below.
o
X =
53°
20
970
Answer:
x = 30°
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Geometry
All angles in a triangle add up to 180°Step-by-step explanation:
Step 1: Set Up Equation
53° + 97° + x° = 180°
Step 2: Solve for x
Combine Like Terms: x° + 150° = 180°Isolate x: x = 30°A 20 meter long cable is used to support a telephone, holding it perpendicular to the ground. If the cable forms a 60 degree angle with the ground, how high up the pole should the cable be attached?
If there are 800 students and 17/50 wear a green shirt, how many students are wearing a green shirt?
Answer: 272 students are wearing a green shirt.
Step-by-step explanation:
800/50 = 16
16*17 = 272
Solve for x please... it's for a test and it's really hard
I'll give you all my points, thanks
4(x - 1) - 3 (x - 2) = - 8
6th grade math help me plzz
Answer:
A-B really simple.
Step-by-step explanation:
what did he do wrong
Answer:
I think step 1 because 0.5m + 6 does not equal 20 which messed up the solution.
An item is regularly priced at %59 . It is on sale for 35% off the regular price. what is the sales price
Answer: 38.35%
Step-by-step explanation:
59%=59/100=0.59
0.59-0.35(0.59)=
0.59-0.2065=
0.5900-0.2065=
0.3835=38.35%
The table represents a proportional relationship between the number of hours it shows h, and the number of inches of snow, s on the ground. Find the constant of proportionality
The constant of proportionality is.
The constant of proportionality is 4, and the relationship is given by s = 4h.
What is an equation?An equation is an expression that shows the relationship between two or more numbers and variables.
A variable can either be dependent or independent. A dependent variable depend on other variable while an independent variable does not depend on other variables.
Let h represent the number of hours and s represent the number of inches of snow on the ground. Since both variables are proportional, hence:
s = hk; where k is the constant of proportionality
Let us assume in the table, when h = 1, s = 4 hence:
s = hk
4 = k(1)
k = 3
s = 4h
The constant of proportionality is 4, and the relationship is given by s = 4h.
Find out more on equation at: https://brainly.com/question/13763238
#SPJ1
What is f(g(13))? A. 16 B.26 C. 32 D. The function is undefined
The answer is 32 and there’s a diagram but I need to know how to get there without said diagram.
Answer:
See explanation
Step-by-step explanation:
f(g(13))=
f(16)=32
**The diagram is the only reference to solving f(g(13)). f(x) or g(x) isn't provided for you, so just use the diagram.
Ahmad rented a truck for one day. There was a base fee of $17.99, and there was an additional charge of 88 cents for each mile driven. Ahmad had to pay
$144.71 when he returned the truck. For how many miles did he drive the truck?
mile.
Answer:
266 miles
Step-by-step explanation:
(244.09-17.99)/0.85=266
find the amount of hardener needed for 600g of carbon fiber if the ratio of the composite is 40% matrix to 60% fiber and the ratio of the matrix is 100 parts resin to 27 parts of hardener
The hardener needed for 600 g of carbon fiber is 85.04 g.
We are given that the ratio of the composite is 40 % matrix to 60 % fiber.
This can be written as:
Matrix : fiber = 40 % : 60 %
Matrix : fiber = 40 : 60
Matrix : fiber = 2 : 3
Now, we know that the carbon fiber = 600 g
Matrix : 600 g = 2 : 3
Matrix / 600 = 2 / 3
Matrix = 1200 / 3 g
Matrix = 400 g
Also, we are given that the ratio of the matrix is 100 parts resin to 27 parts of hardener.
This means that:
Hardener = 27 / 127 of matrix.
Hardener = 27 / 127 × ( 400 g )
Hardener = 85.04 g
Therefore, the hardener needed for 600 g of carbon fiber is 85.04 g.
Learn more about ratio here:
https://brainly.com/question/2328454
#SPJ4
I WILL GIVE BRAINLIEST
Select all the correct locations on the image.
Consider function f.
F(x) = x^3 + 2x^2 - 5x – 6
Select the locations of the zeros of function fon the coordinate plane. Then select the end behavior of its graph.
Answer:
C.
Step-by-step explanation:
A x approach positive infinity. f(x) approach positive infinity
Answer:
a bit late
use desmos, seriously a life saver
Step-by-step explanation:
Ramon places a mirror on the ground 45 ft from the base of a geyser. He walks backwards until he can see the top of the geyser in the middle of the mirror. at that point, Ramon eyes are 6 ft above the ground and he is 7.5 ft from the mirror. Use similar triangles to find the geyser
Answer:
36 ft
Step-by-step explanation:
6/x=7.5/45
270=7.5x
x=36
In this exercise we have to have knowledge of triangles, so we can use the theory of similar triangles to find the value of X, like:
[tex]36 ft[/tex]
To use similar triangle theory, we have to make a rule of 3, that is:
[tex]6/x=7.5/45\\270=7.5x\\x=36[/tex]
See more about triangles at brainly.com/question/10951564
Evaluate each expression if a = 2, b = -34
3. - 9 (a-6)
Answer:
36
Step-by-step explanation:
I'm assuming the expression we're solving here is -9(a-6).
-9(2-6)
(-9*2)-(-9*6)
(-18)-(-54)
Simplify.
-18+54
It equals 36.
Hope this helps.
which is the graph of x-y=1
A median of a triangle always bisects the angle of the triangle that it intersects. true or false
Answer: True
Step-by-step explanation: Every triangle has exactly three medians, one from each vertex, and they all intersect each other at the triangle's centroid. In the case of isosceles and equilateral triangles, a median bisects any angle at a vertex whose two adjacent sides are equal in length. The concept of a median extends to tetrahedra.
Answer:
True
Step-by-step explanation:
I need help solving this ASAP
While playing basketball, Jada’s heart rate goes up to 140 beats per minute. While jogging, her heart beats 40 times in 15 seconds. Assuming her heart beats at a constant rate while jogging, which of these activities resulted in a higher heart rate? Explain your reasoning.
Answer:
Basketball
^^
Step-by-step explanation:
10 x 6 = 60 (there are 60 seconds in a minute)
25 x 6 = 150
jogging = 150
basketball = 160
^^
Hope this helped!! <3
This is a personal question what does 61.5 mean in height i wanna know for math class
hurry this is urgent im on a timer
Answer:
So 61.5 inches I'm guessing in feet would be 5.125 feet. You just divide 61.5 by 12 to get your answer.
Step-by-step explanation:
Which of the following equations has an infinite number of solutions?
A. 3x – 3 = –4x
B. 2y + 4 – y = 16
C. 7x + 5 = 4x + 5 + 3x
D. 6y – 2 = 2(y – 1)
The equation 7x + 5 = 4x + 5 + 3x has an Infinite number of solutions. which is the correct answer would be option (C).
What is the equation?The equation is defined as mathematical statements that have a minimum of two terms containing variables or numbers that are equal.
We have to determine which equation has an infinite number of solutions
As per option (C),
⇒ 7x + 5 = 4x + 5 + 3x
Combine comparable terms to simplify both sides of the problem.
You have become left with 7x+5 = 7x+5.
On both sides, subtract 7x.
This gives you 5=5.
Subtraction 5 from both sides
⇒ 0 = 0
Thus, this equation has an Infinite number of solutions.
Hence, the correct answer would be an option (C).
Learn more about the equation here:
brainly.com/question/13947055
#SPJ2
Uma tecelagem fabrica 2000 metros de comprimento de tecido com 2 metros de largura em uma semana, com 4 teares funcionando 8 horas por dia cada. Se duas máquinas forem desligadas, em quanto tempo ela fabricará 1500 metros de comprimento de tecido com 3 metros de largura e com as máquinas trabalhando 6 horas por dia cada?
A
15 dias
B
18 dias
C
21 dias
D
28 dias
What is the slope of a line perpendicular to y - 2x + 4 = 0?
Answer: 1/2
Step-by-step explanation:
Opposite reciprocal
Given CAD is a right angle and AB is bisecting CAD and if DAB=(7x-4) find X
Answer:
x = 7
Step-by-step explanation:
∠CAD is a right angle, right angles has 90° measurement.
m∠DAB = 7x - 4 AB bisects ∠CAD this means it divides the angle into two equal parts.
So it's safe to write the following equation:
7x - 4 = 45 (half of 90°)
add 4 to bot sides
7x = 49 divide both sides by 7
x = 7
hellppp
plsssssssssss
Juan hires an electrician. • Juan pays a one-time fee of $30. Juan also pays $45 for each hour the electrician works. How much will Juan pay if it takes the electrician 6.5 hours to complete the job?
Answer: 322.50
Step-by-step explanation:
45 * 6.5 = 292.5
292.5 + 30 = 322.5