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ad-work [718]
3 years ago
13

Sharmila received 81 texts in 9 minutes what is the rate???????????????????????????????????????????????????

Mathematics
1 answer:
Arte-miy333 [17]3 years ago
7 0

Question

Sharmila received 81 texts in 9 minutes what is the rate?

Answer:

<h2>9 : 1</h2>

Step-by-step explanation:

the rate is 81 : 9

semplify

9 : 1 (9 texts x minute)



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A rectangle has four right angles. What other shape has four right angles?
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A square is the only other shape with 4 right angles

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Solve x2 - 8x - 9 = 0. Rewrite the equation so that it is of the form x2 + bx = c.
barxatty [35]

Answer:

x=9,-1  and x^2+(-8)x=9

Explanation:

we have been given with the quadratic equation x^2-8x-9

we compare the given quadratic equation with general quadratic equation

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from given quadratic equation a=1,b= -8,c= -9

substituting these values in the formula for discriminant D=b^{2}-4ac

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x=\frac{-(-8)\pm\sqrt{100}} {2}= \frac{8\pm10}{2}=9,-1

And rewritting the given equation by  shifting 9 to right hand side of the given equation and taking minus inside the bracket so as to convert it in the form of

x^2+bx=c

4 0
3 years ago
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A swimming pool is filled with<br> water. Find ..<br> 15m<br> 1.2<br> 3.7m<br> 1.89
Andreyy89

Answer:

Step-by-step explanation:

5 0
2 years ago
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<img src="https://tex.z-dn.net/?f=20%20%5Cdiv%20%289%20-%205%29%20%2B%201" id="TexFormula1" title="20 \div (9 - 5) + 1" alt="20
sammy [17]
The answer is 6 cause 9-5 is 4 and 20/4 equal 5+1 equal 6
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2 years ago
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