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zepelin [54]
3 years ago
10

What is the area and perimeter. Please help I’ll give brainliest if I get it correct

Mathematics
2 answers:
nika2105 [10]3 years ago
8 0
Hello!

You first have to find the width

We can find this use the Pythagorean theorem

12^2 + b^2 = 15^2

Square the numbers

144 + b^2 = 225

Subtract 144 from both sides

b^2 = 81

Take the square root of both sides

b = 9

The width is 9

To find the perimeter you do 2l + 2w

Put in the values 2(12) + 2(9)

24 + 18 = 42

The perimeter is 42cm

To find the area you multiply the sides

12 * 9 = 108

The area is 108cm^2

The answer is D

Hope this helps!
Fudgin [204]3 years ago
3 0
See the attached picture:

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Step-by-step explanation:

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Suppose you want to save in order to purchase a new boat. Take the APR to be 6.0%.
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Answer:

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Step-by-step explanation:

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3 years ago
Which coordinate is a solution for the system containing the equations y=x+3 and y=4x?
ohaa [14]

Answer:

(1, 4 )

Step-by-step explanation:

Given the 2 equations

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4 0
3 years ago
Triangle QRS has side lengths q = 5.1 and r = 9.8 . Angle S has a measure of 39 degrees What is the length of side 8?
svet-max [94.6K]

Correct question:

Triangle QRS has side lengths q = 5.1 and r = 9.8 . Angle S has a measure of 39 degrees. What is the length of side s?

Answer:

The length of side s is 6.66

Step-by-step explanation:

Given;

triangle QRS, with side length q = 5.1 and r = 9.8

angle between q and r = ∠S = 39⁰

Apply cosine rule to calculate the missing side "s";

s² = q² + r² -  2qr x Cos(S)

s² =5.1² + 9.8²  -  2 x 5.1 x 9.8 x Cos(39)

s² = 122.05 -  77.68

s² = 44.37

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Therefore, the length of side s is 6.66

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3 years ago
Helphelphelphelphelp​
kaheart [24]

Answer:

3\frac{3}{4}

Step-by-step explanation:

3/4*5 -> 3/4*5/1 -> 15/4 -> 3\frac{3}{4}

6 0
4 years ago
Read 2 more answers
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