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3 years ago

6

A rectangle is 12 feet long and five feet wide.if the length of the rectangle is increased by 25% and the width is decreased by

20%, what is the change in the area of the rectangle?

1 answer:

Molodets [167]3 years ago

8 0

Hopefully i helped you.

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180=2x+y which equation is used to find x

Serggg [28]

180=2x+y
180-y=2x
(180-y)/2=x

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3 years ago

Simplify the following expression: (−3)(−2)( −2)<br> A −12<br> B 12<br> C −18<br> D 18

nydimaria [60]

A -12 Hope this helps

7 0

2 years ago

Read 2 more answers

Please help I don’t know the answer

Katyanochek1 [597]

Answer:

x= -36/5, which is also -7.2

Step-by-step explanation:

you can solve this equation by multiplying both sides of the equation by -6/5

hope it helps

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2 years ago

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(6 - 1) + (3m)i = -12 + 27i

Yanka [14]

Answer:

We want to solve the equation:

(6 - 1) + (3m)i = -12 + 27i

Where m is a complex number.

first, we can rewrite this as:

5 + 3*m*i = -12 + 27*i

3*m*i = -12 - 5 + 27*i

3*m*i = -17 + 27*i

And we can write m as:

m = a + b*i

Replacing that in the above equation we get:

3*(a + b*i)*i = -17 + 27*i

3*a*i + 3*b*i^2 = -17 + 27*i

and we know that i^2 = -1

3*a*i - 3*b = -17 + 27*i

The real part in the left (-3*b) must be equal to the real part in the right (-17)

then:

-3*b = -17

b = -17/-3 = 17/3

And the imaginary part in the left (3*a) must be equal to the imaginary part in the right (27)

then:

3*a = 27

a = 27/3.

Then the value of m is:

m = a + b*i = (27/3) + (17/3)*i

8 0

3 years ago

Vance wants to determine if an old photo frame is still rectangular. The height of the frame is

sveticcg [70]

Answer:

<em>The old photo frame is still rectangular</em>

Step-by-step explanation:

<u>Rectangles</u>

The rectangle shape can be identified because it has 4 internal angles of 90° each. The diagonal forms with two adjacent sides a right triangle where the Pythagora's Theorem must stand. Being a and b the length of the sides of the rectangle and d the diagonal, then:

$d^2=a^2+b^2$

Vince's photo frame has dimensions of 8 inches and 6 inches, with a diagonal of 10 inches. If the above condition is met, then the frame is still rectangular.

Calculating:

$10^2=6^2+8^2$

$100=36+64$

$100=100$

Since the condition is met, the old photo frame is still rectangular

4 0

2 years ago