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3 years ago

06.10 Module Six Practice Test

Mathematics

1 answer:

lozanna [386]3 years ago

3 0

Answer: 04) 16

Step-by-step explanation:

The given expression is : $(22+42)\div2^2$

Since $22+42=64$

and

$2^2=2\times2=4$

So, by using these values the given expression will become

$(22+42)\div2^2=64\div 4 =16 \ \ \ [\text{As }16\times4=64]$

Thus, the value of the expression $(22+42)\div2^2$ is 16.

Hence, the correct option is "04) 16."

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vekshin1

Answer:

b=4

Step-by-step explanation:

So, we have the function $f(x)=1/x$ . We need to find b such that the average rate of change or the slope is -1/8 between the intervel [2, b]. First, let's find f(2).

f(2) = 1/(2) = 1/2

So, we have the point (2, 1/2)

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Now, we just need to solve for b. First, let's multiply both the numerator and denominator by b (to get rid of the annoying fraction in the numerator).

$\frac{.5b-1}{2b-b^2} =\frac{-1}{8}$

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$b^2-6b+8=0$

Solve for b. Factor using the numbers -4 and -2.

$=(b-4)(b-2)=0$

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Step-by-step explanation:

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Step-by-step explanation:

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