Please help! There is 2 question! Thank you so much

Answer:

40°

Step-by-step explanation:

Since triangle ABC is identical to triangle A'B'C', it has the same measures of respective sides and angles, and ang A is therefore equal to angle A'.

After rotational transformation, the measure of angle ∠A' = 40°.

A rotation is a transformation that turns the figure in either a clockwise or counterclockwise direction on the coordinate plane. In both transformations the size and shape of the figure stays exactly the same.

For the given situation,

The diagram shows the two triangles.

Triangle ABC is the original triangle and A'B'C' is the triangle obtained after the rotation of -120°.

From the definition, in rotational transformation the size and shape of the figure stays exactly the same. Then the angle measures are also remains the same.

Thus the measure of angle A' is [tex]\angle A' = \angle A = 40[/tex]

Hence we can conclude that after rotational transformation, the measure of angle ∠A' = 40°.

Learn more about rotation transformation here

https://brainly.com/question/12865301

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Answer:

[tex]2x^3-3x+4+\frac{5}{3x-5}[/tex]

Step-by-step explanation:

Use polynomial; long division to divide the two polynomials. Remember to put each polynomial in standard form, or rather organize each polynomial by their degree (exponent). The polynomial with the highest exponent will go first, then each with its varying exponent will suceed.

          _____[tex]\underline{2x^2\ \ -\ \ 3x\ \ +4}[/tex]

[tex]3x-5[/tex] | [tex]6x^3 - 19x^2+27x-15[/tex]

          [tex]\underline{-6x^3+10x^2}[/tex]

                    [tex]-9x^2+27x[/tex]

                      [tex]\underline{+9x^2-15x}[/tex]

                               [tex]12x-15[/tex]

                               [tex]\underline{-12x+20}[/tex]

                                         [tex]5[/tex]

Answer:

3⁴

Step-by-step explanation:

3*3*3*3 is equal to 3⁴

Answer:

$819

Step-by-step explanation:

First we find the area of the wall so we multiply 13ft x 9ft.

13ft x 9ft = 117ft

We know each square foot is equal to $7. So now we multiply 117 x 7 to get the total cost.

117 x 7 = $819

Answer:

9)-1=x+19

-x =19+1

-x=20

-x÷-1=20÷-1

x=20.

Answer:

Step-by-step explanation

Im not good at coordinate graphs but I think the answer is the second one, sorry if I'm wrong!! :)

Answer:

21/5

Step-by-step explanation:

Answer:

1 [tex]\frac{1}{40\\}[/tex]

Step-by-step explanation:

i hope this helps :0

Answer:

Step-by-step explanation:

You are to assume in both problems that the two triangles are similar. That is a very dangerous assumption -- especially in later math classes. But in this case, there is no other way to do the problem. The two sets of triangles look like they are proportional.  So set up two ratios that are = to each other

On the left

long side small triange / long side large triangle = base small triangle / base large triangle

On the right

hypotenuse/longest leg = hypotenuse / longest leg.

Problem A

Set up the similar Proportion

5/40 = x/20                Cross Multiply

40x = 20*5

40x = 100                   Divide by 40

x = 100/40

x = 2.5

Problem B

Again set up the similar triangle proportion

15/10 = x/2                  Multiply by 2

15*2/10 = x              

3 = x

Answer:

9

Step-by-step explanation:

45/15=x/3

3*3=x

x=9

Answer:

3*5=15 so __*4=45 so answer is 45/5=9

Step-by-step explanation:

Answer:

14

Step-by-step explanation:

5x + 2 + 48 = (180-120)+30 +30

5x+50 = 60+30+30

5x+50=120

5x=120-50

5x = 70

x = 70/5

x = 14

Answer: 6:24 . 1:4

*All devided by 6

If helpful, Brainliest please

Answer: 1 : 4

Step-by-step explanation:

6 is divisible by 6 and 24

so ,  after dividing the answer will be 1 : 4

Answer:

6\8

Step-by-step explanation: Because 3/4 times 2/2 is 6/8

Answer:

i don't know ok but today is my math exam

Answer:

y= -x+2

Step-by-step explanation:

Using the equation, y = mx+b, you know you have to find the slope. Find the slope using two coordinate points, (-2,4) and (0,2).

Subtract 2-4/0+2 - the answer is -1. Your slope is -1 and the y axis is given so the equation is y=-x+2

Answer:

([tex]n^{2}[/tex]+4)-3

Step-by-step explanation:

since it says "and four" i think it means it is in parenthesis

Answer:

n^2 + 1

Step-by-step explanation:

Let the unknown number be n.  Then "a number squared and four" is

n^2 + 4, and 3 fewer than this result is

n^2 + 3 - 3, or n^2 + 1

Answer:

ee

Step-by-step explanation:

e

Answer:

[tex]1)xyz = y \\ xz = 1 \\ x = \frac{1}{z} \\ 2)s = 7zx \\ x = \frac{s}{7z} \\ thank \: you[/tex]

Step-by-step explanation:

1. xyz = y

[tex] = > x = \frac{y}{yz} [/tex]

[tex] = > x = \frac{1}{z} (ans)[/tex]

2. s = 7zx

[tex] = > x = \frac{s}{7z} (ans)[/tex]

Answer:

brainliest is appreciated

Answer:

the answer would be C.

Step-by-step explanation:

C is your answer

Answer:

answer b

Step-by-step explanation:

Answer:

Step-by-step explanation:

Given function:

To find f(2 - a) substitute x with 2 - a:

f(x)=2(x)^2-2

[tex]\\ \rm\hookrightarrow f(2-a)[/tex]

[tex]\\ \rm\hookrightarrow 2(2-a)^2-2[/tex]

[tex]\\ \rm\hookrightarrow 2(2^2-4a+a^2)-2[/tex]

[tex]\\ \rm\hookrightarrow 2(4-4a+a^2)-2[/tex]

[tex]\\ \rm\hookrightarrow 8-8a+2a^2-2[/tex]

[tex]\\ \rm\hookrightarrow 2a^2-8a+6[/tex]

Answer: D

Step-by-step explanation: 15 : 5 is equivalent to 60 : 20 because you multiply both sides by 4

Answer:

1^2 and 2^2

Step-by-step explanation:

1^2 is 1

2^2 is 4

3 is a number in between

Answer:

1 and 4 or [tex]1^{2} and 2^{2}[/tex]

Step-by-step explanation:

[tex]1^{2}[/tex] = 1

[tex]2^{2}[/tex] = 4

The number that comes in between is 1 and 4 is 3.

Answer:

3/8

Step-by-step explanation:

In 1 day = 1/8

In 3 days = 1/8 x 3 = 3/8

Answer:

It is ⅜ hours

Step-by-step explanation:

[tex]{ \sf{1 \: day = \frac{1}{8} \: hours}} \\ \\ { \sf{3 \: days = (3 \times \frac{1}{8} ) \: hours}} \\ \\ = \frac{3}{8} \: hours[/tex]