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3 years ago

What is the solution to 4 (1/2x + 7) =12

Mathematics

2 answers:

3241004551 [841]3 years ago

5 0

Answer:

1/2x + 7=12/4=3

1/2x = 3-7=-4

x=-4/0.5

x=-8

Volgvan3 years ago

3 0

Answer:

-8

Step-by-step explanation:

Solve the brackets first

4/2x+28=12

then group the like terms

2x=12-28

2x/2=-16/2

x= -8

i hope this helps

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Alex_Xolod [135]

Though I don't know #24, I know #25.

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3 years ago

The coordinates of the vertices of a rectangle are (−3, 4) , (7, 2) , (6, −3) , and (−4, −1) . What is the perimeter of the rect

ki77a [65]

Answrer

Find out the what is the perimeter of the rectangle .

To prove

Now as shown in the figure.

Name the coordinates as.

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In rectangle opposite sides are equal.

Thus

AB = DC

AD = BC

Formula

$Disatnce\ formula = \sqrt{(x_{2} - x_{1})^{2} +(y_{2} - y_{1})^{2}}$

Now the points A(−3, 4) and B(7, 2)

$AB = \sqrt{(7- (-3))^{2} +(2- 4)^{2}}$

$AB = \sqrt{(10)^{2} +(-2)^{2}}$

$AB = \sqrt{100+4}$

$AB = \sqrt{104}$

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Thus

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Now the points

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Formula

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Answer:

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