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3 years ago

15

There were 65 questions on the topic of geography on the practice test. What was the total number of questions on the practice t

est?

1 answer:

mixas84 [53]3 years ago

8 0

Answer:

65

Step-by-step explanation:

Because we are not given any evidence of any other value of questions, we can presume that 65 is the correct answer.

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Find the area of the curve y= f(x) = x between x = 5 and x = 10

Tems11 [23]

Answer:

the area of the curve y= f(x) = x between x = 5 and x = 10

$A=\frac{75}{2}$

Step-by-step explanation:

Finding the area of the curve y = f(x) = x between x = 5 and x = 10

Using the Area formula

$A=\int _a^b\:f\left(x\right)dx$

As the area of curve lies between x = 5 and x = 10

so

a = 5, b = 10

so the integral expression becomes

$A=\int _5^{10}xdx$

$\mathrm{Apply\:the\:Power\:Rule}:\quad \int x^adx=\frac{x^{a+1}}{a+1},\:\quad \:a\ne -1$

$A=\left[\frac{x^{1+1}}{1+1}\right]^{10}_5$

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Therefore, area of the curve y= f(x) = x between x = 5 and x = 10

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