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joja [24]
3 years ago
12

9 squared + x squared = 15 squared

Mathematics
2 answers:
SSSSS [86.1K]3 years ago
6 0

Answer:

x = 72   i hope this helps   :)

Step-by-step explanation:

given,   9^{2} + x^{2} = 15^{2}

simplify   81 + 2x = 225

subtract 81 from both sides   2x = 144

divide both sides by 2   x = 72

alisha [4.7K]3 years ago
5 0

Answer:

x=12

Step-by-step explanation:

9^2=81

15^2=225

225-81=144

√144=12

x=12

I hope this helps!

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Find the sum of the equation
stealth61 [152]

Answer:

\frac{{y}^{2}+13y-6}{{(y-1)}^{2}(y+7)}

Step-by-step explanation:

1)  Rewrite {y}^{2}-2y+1y  in the form{a}^{2}-2ab+{b}^{2}, where a = y and b = 1.

\frac{y}{{y}^{2}-2(y)(1)+{1}^{2}}+\frac{6}{{y}^{2}+6y-7}

2)  Use Square of Difference: {(a-b)}^{2}={a}^{2}-2ab+{b}^{2}.

\frac{y}{{(y-1)}^{2}}+\frac{6}{{y}^{2}+6y-7}

3)  Factor {y}^{2}+6y-7.

1 - Ask: Which two numbers add up to 6 and multiply to -7?

-1 and 7

2 - Rewrite the expression using the above.

(y-1)(y-7)

Outcome/Result: \frac{y}{(y-1)^2} +\frac{6}{(y-1)(y+7)}

4) Rewrite the expression with a common denominator.

\frac{y(y+7)+6(y-1)}{{(y-1)}^{2}(y+7)}

5)  Expand.

\frac{{y}^{2}+7y+6y-6}{{(y-1)}^{2}(y+7)}

6) Collect like terms.

\frac{{y}^{2}+(7y+6y)-6}{{(y-1)}^{2}(y+7)}

7) Simplify  {y}^{2}+(7y+6y)-6y  to  {y}^{2}+13y-6y

\frac{{y}^{2}+13y-6}{{(y-1)}^{2}(y+7)}

5 0
2 years ago
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Firdavs [7]
Here’s an explanation! let me know if you need further clarification

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1 year ago
Putting recipe makes 4 1/2 cups of pudding. How many 1/3 cup servings does this equal?
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9/2 × 3/1

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Answer C.

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3 years ago
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mel-nik [20]

Answer:

A.20%

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6 0
3 years ago
In August, Ralph bought a new set of golf clubs that cost $775. The cost of the clubs was marked up to $800 in October. Which pr
Ilia_Sergeevich [38]
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