PLEASE HELP QUICK!!!!!!!!!!!!!!

Given:

The coordinates of point A are (7,4).

It is dilated from the origin by a scale factor r = 3.

To find:

The coordinates of A'.

Solution:

If a figure is dilated from the origin by a scale factor k, then

[tex](x,y)\to (kx,ky)[/tex]

Here, the figure is dilated from the origin by a scale factor 3, so the rule of dilation is given by:

[tex](x,y)\to (3x,3y)[/tex]

Using this rule, we get

[tex]A(7,4)\to A'(3(7),3(4))[/tex]

[tex]A(7,4)\to A'(21,12)[/tex]

Therefore, the coordinates of point A' are (21,12).

Answer:

x = -2

Step-by-step explanation:

Answer:

x=-2

Step-by-step explanation:

If f(x) = x ⁴ - 2x ² + 3, compute the first and second derivatives:

f'(x) = 4x ³ - 4x

f''(x) = 12x ² - 4

Solve f'(x) = 0 to get the critical points of f(x) :

4x ³ - 4x = 4x (x ² - 1) = 0

→   x = -1, x = 0, x = 1

Check the sign of the second derivative at each of these points:

f'' (-1) = 8 > 0

f'' (0) = -4 < 0

f'' (1) = 8 > 0

These indicate the presence of

• two minima of f (-1) = 2 and f (1) = 2

• one maximum of f (0) = 3

which makes C the correct answer.

Answer:

option a

1/3=x/42

..........

Answer: A, (6, -9)

hope this helps:)

Answer: 1

Step-by-step explanation:

Algebraic Basics

Answer:

the answer is 1

Step-by-step explanation:

i did this iready

Answer: 70%

Step-by-step explanation:

Total number of jersey = 50.

Total number of medium sized jersey = 35

The percent of the jerseys that are medium sized jerseys will be:

= Number of medium sized / Total number of jersey × 100

= 35 / 50 × 100

= 70%

Answer:

12/5 = 2.4 pounds of oranges per person

Step-by-step explanation:

Answer:

2.4 lbs of oranges

Step-by-step explanation:

12÷5

2.4

Answer:

to get rid of the 3 on the x you have to divide it by 3. whatever you do to one side you have to do to the other side so the answer would be x=8

Step-by-step explanation:

Answer:

x = 8

Step-by-step explanation:

To get the variable alone you would divide both sides by 3. You do this because 3 is a common factor that both 3 and 24 have. Once you divide 3 on each side, you have x = 8 as your final answer.

Answer

not sure

Step-by-step explanation:

Answer: 220%

Step-by-step explanation:

165 of 75 can be written as:

165 /75

To find percentage, we need to find an equivalent fraction with denominator 100. Multiply both numerator & denominator by 100

165 /75  ×  100 /100  = ( 165 × 100 /75 ) ×  1 /100  =  220 /100

Therefore, the answer is 220%

Answer:

m<5 = m<7 = 127

Step-by-step explanation:

m<2 = m< 8 because they are alternate interior angles.

So angle 8 is 53 degrees.

m<8 + m<7 = 180 because they form a straight angle.

Since angle 8 is 53 degrees as previously established, angle 7 has to be 127 degrees.

And since angles 7 and 5 are opposite angles, they have the same value, so both angles are 127 degrees.

Answer:

2. true

3. x=1

Step-by-step explanation:

it is going through the x axis

Answer:

Step-by-step explanation:

2x+3y=-4

-x+y=4  /*2

2x+3y=-4

-2x+2y=8

5y=4

y=4/5

x=y-4=4/5-4= - 3.2

Answer:

2 nd one

Step-by-step explanation:

Answer:

Katrina would need to buy 20 sweatshirts.

Step-by-step explanation:

The number of sweatshirts Katrina would need to order from  each company can be determined by forming the linear equation in two variables.

Given :

Let the number of sweatshirts orders from company MH Designs be 'x' and the number of sweatshirts orders from company Print Rich be 'y'.

So, the cost for ordering the sweatshirt from the company MH Design is:

[tex]21.50x = c[/tex]

Now, the cost for ordering the sweatshirt from the company Print Rich is:

18y + 70 = c'

Given that the number of sweatshirts Katrina would need to order from  each company for the costs to be the same. So :

21.5x = 18y + 70

Now, put the value of x and y so, that in the above equation, both sides become equal.

For more information, refer to the link given below:

https://brainly.com/question/2263981

Answer:

f(g(t)) = 2t² + 1

Step-by-step explanation:

You can solve this simply by substituting g(t) into f(t), and solving for f(g(t)):

[tex]f(t) = 2t + 5\\\\g(t) = t^2 - 2\\\\f(g(t)) = 2(g(t)) + 5\\\\f(g(t)) = 2(t^2 - 2) + 5\\\\f(g(t)) = 2t^2 - 4 + 5\\\\f(g(t)) = 2t^2 + 1[/tex]

Answer:

what?? what is your question

Step-by-step explanation:

Answer: 1.2

Step-by-step explanation: Simply divide 18 by 15, and you will get 18/15=1.2

Step-by-step explanation:

a. spending

b. john,60 collin,80

c. six

d. four

e. COULDNT READ THAT QUESTION

f. on day two

g. forty dollars

Answer:

-13/5

Step-by-step explanation:

The formula for slope is [ y2-y1/x2-x1 ].

-6-7/2-(-3)

-13/5

Best of Luck!

Are you good at surfing? Is it similar to skateboarding?

Answer:

10,000

Step-by-step explanation:

1000 times 10 is 10000

Answer:

y

Step-by-step explanation:

To determine the x-intercept, we set y equal to zero and solve for x.

Trust me please.

Answer:

<3, 7> and [3 7], b and c

Step-by-step explanation:

multiply the vector by the matrix {1 0} (top row) {0 -1} bottom row. So you flip the sign of the -7 and this gives us +7.

Answer:

Step-by-step explanation:

Hi! You didn't list the components of the two sets. Both M and T

Answer:

D.

Step-by-step explanation: