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ch4aika [34]
4 years ago
13

Need help with this please

Mathematics
1 answer:
Katarina [22]4 years ago
5 0

Answer:

The third side is sqrt(77)

Step-by-step explanation:

Since this is a right triangle we can use the Pythagorean theorem

a^2 + b^2 = c^2 where a and b are the legs and c is the hypotenuse

2^2 + b^2 = 9^2

4+ b^2 = 81

Subtract 4 from each side

b^2 = 81-4

b^2=77

Take the square root of each side

sqrt(b^2) = sqrt(77)

b = sqrt(77)

The third side is sqrt(77)

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Use the graph of the quadratic function, g(x), to answer each question.
Sliva [168]

Answer:

it is -3 8 and 2

Step-by-step explanation:

7 0
2 years ago
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The length of a room is 2 1/2 feet more than its width. If the perimeter of the room is 80 feet, find its width and length?​
horsena [70]

Answer:

The width is 20.625 and the length is 19.375

Step-by-step explanation:

Let 2 1/2 + w = length

Let w = width

Equation:

2 1/2 + w + w = 80                     Combine liked terms

2 1/2 + 2w = 80                    

-2 1/2         -2 1/2                        Subtract 2 1/2 from both sides

2w  =   77.5

÷ 2     ÷ 2                                    Divide 2 from both sides

w = 41.25

Length:

2 1/2 + 41.25 = 165/4 or 38.75

Width:

41.25

41.25/2 = 20.625

38.75/2 = 19.375

4 0
3 years ago
When Kevin bought a new bike ramp, he borrowed $1,200 at a rate of 18% for 9 months. How much interest did he pay?
AURORKA [14]

We would apply the formula for determining simple interest which is expressed as

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Since there are 12 months in a year,

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7 0
1 year ago
.   Multiply (x + 3)(x – 3).
konstantin123 [22]
X × x = x^2
x × -3 = -3x
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So I would agree with C because the -3x and the 3x cancel each other out. I hope this helps!
8 0
3 years ago
PLZ HELP ME ASAPPPPP
vovangra [49]

AnsweP is eaqul to Q

Step-by-step explanation:

7 0
3 years ago
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