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frez [133]
3 years ago
15

Plzzzzz help …. T understand

Mathematics
1 answer:
bazaltina [42]3 years ago
3 0
Pythagorean Theorem: a^2 + b^2 = c^2
a = 6
c = 9
b = ?
6^2 + b^2 = 9^2
36 + b^2 = 81
b^2 = 81 - 36
b^2 = 45
b = sqrt(45)
b = 6.71 miles
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A round mirror has a circumference of 87.92 inches. Calculate the area of the mirror.
Zarrin [17]

\bf \textit{circumference of a circle}\\\\ C=2\pi r~~ \begin{cases} r=radius\\[-0.5em] \hrulefill\\ C=87.92 \end{cases}\implies 87.92=2\pi r\implies \cfrac{87.92}{2\pi }=\boxed{r} \\\\[-0.35em] ~\dotfill\\\\ \textit{area of a circle}\\\\ A=\pi r^2~\hspace{7em}A=\pi \left( \boxed{\frac{87.92}{2\pi }} \right)^2 \\\\\\ A=\pi \cdot \cfrac{87.92^2}{4\pi^2}\implies A=\cfrac{87.92^2}{4\pi }\implies A\approx 615.127998

6 0
3 years ago
ANSWERS 1-8 PLEASE QUICKLY
padilas [110]
1(3694820-1223400=2471420. Ans. B
2)4*40*0.05=8 Ans. B
3)Ans. D
4)2*3*2*3=6*6=36 Ans. 2,2,3,3
5)4*(10)/2=40/2=20 Ans 20
6) Ans. Distributive Property
7)Ans. 5
8)Ans. 60° angle, because 90-30=60
6 0
4 years ago
Explain how to evaluate the expression 8 times 3 to the power of 2 + 25 times 2
Anna [14]

Answer: 1202

Explanation:  

Do 8×3=24²=576+25=601×2=1202

<u><em>Glad i could help!</em></u>

<u><em>Love morgan malice!</em></u>

4 0
3 years ago
What Fraction Is Equivalent to 3/9
QveST [7]
Equivalent fractions of \frac{3}{9} =  \frac{1}{3},  \frac{2}{6} and so on..
3 0
3 years ago
Read 2 more answers
Elisa has 10 gold colored coins and 6 silver colored coins. She selects 2 coins with replacement. What is the probability she se
amm1812

Answer: \frac{9}{64}

Step-by-step explanation:

n(gold colored coins) = 10

n(silver colored coins) = 6

Total number of coins = 16

since there is replacement , the probability she selects 2 silver colored coins will be :

\frac{6}{16} x \frac{6}{16}

= \frac{3}{8} x \frac{3}{8}

= \frac{9}{64}

Therefore : the probability she selects 2 silver colored coins is \frac{9}{64}

3 0
4 years ago
Read 2 more answers
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