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3 years ago

13

Determine the area and perimeter

1 answer:

frosja888 [35]3 years ago

4 0

Answer:

Area is the total surface covered by the shape and perimeter is the total length of the shape.

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Which equation represents a line that passes through the point (−2, 6) and is parallel to the line whose equation is 3x − 4y = 6

mart [117]

Method 1: Realize that the desired equation will look exactly the same as the given equation 3x − 4y = 6, except that the constant will be different.

Thus, the equation of the new line is 3(-2) − 4(6) = C, where C comes out to 30.

Then the new line is 3x - 4y = 30.

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3 years ago

What is the value of the expression if z = 27? StartFraction 7 over 9 EndFraction z minus 18 + one-third z

Mandarinka [93]

Answer:

The value of the given expression when z=27 is 16

Therefore $\frac{7}{9}(z-18)+\frac{1}{3}z=16$ when z=27

Step-by-step explanation:

Given expression is $\frac{7}{9}(z-18)+\frac{1}{3}z$

To find the value of the expression when z=27 :

First simplify the given expression

$\frac{7}{9}(z-18)+\frac{1}{3}z$

$=\frac{7(z-18)}{9}+\frac{1}{3}z$

$=\frac{7z-126}{9}+\frac{1}{3}z$

$=\frac{7z-126+3z}{9}$

$=\frac{7z-126+3z}{9}$

$=\frac{10z-126}{9}$

Put z=27 in the above equation we get

$=\frac{10(27)-126}{9}$

$=\frac{270-126}{9}$

$=\frac{144}{9}$

$=\frac{144}{9}$

$=16$

$\frac{7}{9}(z-18)+\frac{1}{3}z=16$

Therefore the value of the given expression when z=27 is 16

Therefore $\frac{7}{9}(z-18)+\frac{1}{3}z=16$ when z=27

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4 years ago

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Answer:

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Step-by-step explanation:

Step 1:

3 : 5 = x : 20

Step 2:

5x = 60

Answer:

x = 12

Hope This Helps :)

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I think that the second one is correct

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