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Anvisha [2.4K]
3 years ago
6

Read question in picture

Mathematics
1 answer:
BaLLatris [955]3 years ago
3 0

Answer:

{w}^{2}  =  {20}^{2}  -  {12}^{2}  = 400 - 144 = 256 \\ w =  \sqrt{256}  \\  \boxed{w = 16}

<h3>16 is the right answer.</h3>
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7.15z + 2.3z = ?z i hate math
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Answer:

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Step-by-step explanation:

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3 years ago
A rectangle is 12 feet long and 5 feet wide. If the length of the rectangle is increased by 25% and the width is decreased by 20
lisabon 2012 [21]

Answer:

30 square feet.

Step-by-step explanation:

We have to find the main area of the rectangle to determine the changes.

We know, Area of a rectangle = Length × Width

Given,

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Therefore, the area of the rectangle = (12 × 5) Square feet.

The area of the rectangle = 60 square feet.

Now, if the length of the rectangle increased by 25%, the new length would be = 12 feet (12 feet × 25%) = 12 feet + 3 feet = 15 feet.

If the width increased by 20%, the latest width would be = 5 feet + (5 feet × 20%) = 5 feet + 1 foot = 6 feet.

The new area of that rectangle = (15 × 6) square feet = 90 square feet.

The changes of area from the previous rectangle is = (90 - 60) square feet = 30 square feet.

5 0
3 years ago
An airplane flies at a constant speed. It can travel a distance (d) of 1,800 kilometers in 2 hours (t).
ss7ja [257]
D = 900t

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3 years ago
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Answer:

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6 0
3 years ago
A kilometre is about 5/8 mile. How many kilometres are in 2 3/4 miles?
Lapatulllka [165]

Answer:

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3 years ago
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