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Maksim231197 [3]
3 years ago
13

QUICK!!!!!

Mathematics
2 answers:
anastassius [24]3 years ago
4 0

Step-by-step explanation:

3x - 24 = 81

3x = 81 + 24

3x = 105

x = 105/3

Option → B

elena-s [515]3 years ago
3 0

Answer:

105/3

Step-by-step explanation:

3x - 24 = 81

84 + 24 = 105

3/3 = 105/3

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What set of transformations could be applied to rectangle ABCD to create A″B″C″D″? 'Rectangle formed by ordered pairs A at negat
CaHeK987 [17]

Answer:

Reflection over the y-axis and rotation of 180°

Step-by-step explanation:

We have,

Rectangle ABCD with co-ordinates A(-4,2), B(-4,1), C(-1,1) and D(-1,2).

It is transformed to a new rectangle A'B'C'D' with co-ordinates A'(-4,-2), B'(-4,-1), C'(-1,-1) and D'(-1,-2).

The graph of both the triangles is shown below.

we see that,

The rectangle ABCD is reflected about y-axis and then rotated 180° to obtain A'B'C'D'.

                     Reflected about y-axis                     Rotation of 180°

A= (-4,2)                     (4,2)                                              A'= (-4,-2)

B= (-4,1)                      (4,1)                                                B'= (-4,-1)

C= (-1,1)                       (1,1)                                                 C'= (-1,-1)

D= (-1,2)                      (1,2)                                                 D'= (-1,-2)

Hence, the second rectangle is formed by: Reflection over the y-axis and rotation of 180°.

5 0
3 years ago
Read 2 more answers
If a person bikes 2.4 miles in 10 minutes how far can a bike in 1.5 hours
Annette [7]
1.5 hour = 90 minute. Each 10 minute =2.4 miles so it's 2.4•9=21.6 The answer the person can bikes 21.6 miles in 1.5 hours.
4 0
3 years ago
Factor Completely: -3x - 9
uranmaximum [27]

Step-by-step explanation:

-3x-9

divide the equation by -1 so that the -1's are taken from -3x and -9. so the -1 goes on the outside of 3x+9

-1(3x+9)

then divide the equation by 3 since 3x and 9 is divisible by 3.

(-1)(3)(3/3x+9/3)

-3(x+3)

Now we can expand again to check the problem

-3 times x=-3x

-3 times 3=-9

and add

-3x-9

Hope that helps :)

7 0
3 years ago
3.
Lynna [10]

Answer:

the answer is B {(0,-4),(2,6)(,4,16)

happy to help

3 0
3 years ago
Angles X and Y are supplementary. Angle X is 3 times the measure of angle Y. What is the measure of angle X?
Andreas93 [3]

we know that

Supplementary angles are those angles whose sum is equal to 180 degrees

In this problem

x+y=180 --------> equation 1

x=3y --------> equation 2

Substitute the equation 2 in equation 1

[3y]+y=180

4y=180

y=45°

<u>Find the value of x</u>

x=3*45

x=135°

therefore

<u>the answer is </u>

The measure of angle x is 135°


4 0
3 years ago
Read 2 more answers
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