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natita [175]
2 years ago
13

A) 9.5106 B) 30.7768 C) 10.5146 D

Mathematics
1 answer:
sp2606 [1]2 years ago
4 0

Answer:

A

...................

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How do you solve x(x+h)=x-h for h?
WITCHER [35]

Answer: H = \frac{-x^{2}+x }{x+1}

Step-by-step explanation:

Step 1: Add h to both sides.

hx+x²+h=−h+x+h

hx+x²+h=x

Step 2: Add -x^2 to both sides.

hx+x²+h+−x²=x+−x²

hx+h=−x²+x

Step 3: Factor out variable h.

h(x+1)=−x²+x

Step 4: Divide both sides by x+1

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Step-by-step explanation:

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3 years ago
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3 years ago
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Mars2501 [29]

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Step-by-step explanation:


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the temperature fell from o degrees to 6 3/5 degrees below 0 in 2 1/5 hours. what was the temperature change per hour?
Kay [80]

<u>Answer:</u>

The temperature change per hour was -3 degrees per hour.

<u>Step-by-step explanation:</u>

We know that the temperature fell from 0 degrees to -6\frac{3}{5} degrees in a time period of 2\frac{1}{5} hours.

So to find the rate of change of the temperature, we will divide the change in temperature by the number of hours.

For that, we will change the mixed number into improper fractions and then solve:

-6\frac{3}{5}=-\frac{33}{5}degrees

2\frac{1}{5}=\frac{11}{5} hours

Temperature change per hour = \frac{-\frac{33}{5}}{\frac{11}{5}} = \frac{33}{5}*-\frac{5}{11}=-3

Therefore, the temperature change per hour was -3 degrees per hour.

7 0
3 years ago
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