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Helen [10]
3 years ago
7

The length of a rectangular wire frame with dimensions of 12 cm × 8 cm increases at the rate of 0.5 cm per second, while its wid

th changes such that the perimeter remains the same. What part of the area of the initial rectangle is the area of the final rectangle after 8 seconds ?
Mathematics
1 answer:
arsen [322]3 years ago
7 0

Answer:

2/3

Step-by-step explanation:

Since the length increases by 0.5 cm every second, after 8 seconds the length will increase by 4 cm. 12 + 8 + 12 + 8 = 40, and 40 - (16 + 16) = 8. 8/2 = 4, so the width is now 4. 16 * 4 = 64, and 12 * 8 = 96. 64/96 = 2/3.

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What is the area of a triangle that has a base of 15 yards and a height of 11 yards?
erma4kov [3.2K]

Answer:

82.5

Step-by-step explanation:

The formula for the area of triangle is 1/2 B * H

1/2 of the base is 7.5

multiply that by 11

and you get

82.5

4 0
3 years ago
Write your answer as a while number
rusak2 [61]

Answer:

10 is your answer

Step-by-step explanation:

2×15/3

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6 0
2 years ago
Rasida ran 5 more miles than 2 times the number of miles Diallo ran this week. Rasida ran 27 miles this week.
Sholpan [36]

Answer:

11

Step-by-step explanation:

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7 0
3 years ago
Use trig identities to transform the left side of the equation to the right side.
Taya2010 [7]

<u>Answer and explanation</u>

(1+sinθ)(1-sinθ)=cos²θ

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From the trigonometric identity sin²θ + cos²θ = 1,

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7 0
3 years ago
The length of a rectangle is 3 times the width. The perimeter is 44 cm. What are the dimensions of the rectangle? Write and solv
ser-zykov [4K]
Here are your equations:
x and 3x
How to set up:
2(x)+ 2(3x) = 44
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8x = 44
Divide:
x = 5.5
Plug back in to find values:
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Hope this helps!! :)
5 0
3 years ago
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