3 years ago

What is 90 plus 60 plus 7x-12

Mathematics

1 answer:

il63 [147K]3 years ago

8 0

$90+60+ 7x -12 = 7x+138$

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-14.9=x/8 -2.1 Please help me answer

Romashka [77]

-14.9 = $\frac{x}{8}$ - 2.1 (Add 2.1 to both sides)
-12.8 = $\frac{x}{8}$ (Multiply both sides by 8)
-102.4 = x

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4 0

4 years ago

The vertices of ABC are A(-3,5), B(-2,3), and C(-5,3). If ABC is reflected across the y-axis to produce the image A'B'C', find t

Nat2105 [25]

Answer:

$C' =(5,3)$

Step-by-step explanation:

Given

$A = (-3,5)$

$B = (-2,3)$

$C = (-5,3)$

Reflection across y-axis

Required

Find C'

For reflection across y-axis, the rule is:

$(x,y) \to (-x,y)$

So, the image of C is:

$(-5,3) \to (-(-5),3)$

$(-5,3) \to (5,3)$

Hence:

$C' =(5,3)$

7 0

3 years ago

Find all values of x where f(x)=0

dmitriy555 [2]

Answer:

I think x has no value in that function

Step-by-step explanation:

6 0

3 years ago

What is the solution to the following system of equations? 3x-4y=35 and 3x+4y=5

natta225 [31]

3x - 4y = 35
3x + 4y = 5
------------------add
6x = 40
x = 40/6 which reduces to 20/3

3x - 4y = 35
3(20/3) - 4y = 35
20 - 4y = 35
-4y = 35 - 20
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y = -15/4

solution is (20/3, -15/4)

8 0

3 years ago

Read 2 more answers

What is the measure of z?

Lady bird [3.3K]

Answer:

The missing angle is 24 degrees

Step-by-step explanation:

The two angles form a straight line so they add to 180 degrees

x+156 = 180

Subtract 156 from each side

x+156-156 = 180- 156

x = 24

The missing angle is 24 degrees

3 0

3 years ago