3 years ago

The geometric mean of 4 and 16 is ______. 64 16 12 8

1 answer:

3 0

The geometric mean of $x$ and $y$ is $\sqrt{xy}$ .

So the geometric mean of 4 and 16 is $\sqrt{4\times16}=\sqrt{64}=8$ .

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Simplify the radical expression. EXPLAIN ALL YOUR STEPS. <br><br> sqrroot 363-3sqrroot 27

Jobisdone [24]

Answer:

2√3

Step-by-step explanation:

$\tt\sqrt{363}-3\sqrt{27}= \sqrt{11^2\cdot3}-3\sqrt{3^2\cdot3}= 11\sqrt{3}-9\sqrt{3}=2\sqrt{3}$

7 0

3 years ago

Consider the error in using the approximation e−x≈1−x on the interval [−1,1]. (a) reasoning informally, on what interval is this

crimeas [40]

$e^{-x} \approx 1 - x$

is a classic approximation, true for small x.

The next term in the polynomial expansion will be $+kx^2$ where k is a positive number. So our estimate 1-x is definitely an underestimate on both sides of x=0.

Since for negative xs the exponential rises exponentially and the line only linearly, the exponential exceeds the line for all negative x. For positive x, the line quickly goes negative while the exponential is always positive.

So, there's no interval for which our approximation is an overestimate.

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3 years ago

Write the equation of the line that passes through the given points. (0,-1) and (-11,-4)

solong [7]

Answer:

Line equation

y=0.2727272727272727x−1 Slope 0.27 Intercept -1

Step-by-step explanation:

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2 years ago

Given the equation 2^2-^1=8^x-1 what is the value of x

Lady bird [3.3K]

Answer:

i can't solve it because it's not complete

you need something 2^2 (right here) -^1=8^x-1

Step-by-step explanation:

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2 years ago

If you are calculating 15% off a discount you need to

katrin2010 [14]

You will need to subtract if u are taking 15% off

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2 years ago