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3 years ago

Help please!! I don't understand the meaning! Please describe what you did too please!!

Mathematics

2 answers:

Phoenix [80]3 years ago

6 0

I suggest using an app for math to solve problems like this they r helpful for example PhotoMath and Socratic

makkiz [27]3 years ago

4 0

The answer is yes i hope this helps i didn’t this before

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Evaluate the piecewise at x=-4 and x=4

Umnica [9.8K]

If x = -4
f(x) = (-4)^2 = 16

if x = 4
f(x) = √4 = 2

hope it helps

3 0

3 years ago

Rosalinda is drawing a picture for her mom. She has a box of

trasher [3.6K]

Answer:

4 crayons

Step-by-step explanation:

The box has 8 crayons, 8 times 1/2 is 4. The other way is dividing. 8/2 is also 4.

She will use 4 crayons.

8 0

3 years ago

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deff fn [24]

Answer:

Step-by-step explanation:

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3 years ago

A honeybee flaps its wings 200 times per second.how much time is required for one wingbeat? give your answere in millisecond

Fiesta28 [93]

The time required for one wing beat is 5 milliseconds.

Explanation

Lets assume, the time required for one wing beat is $t$ seconds

So, the time required for 200 wing beat $= 200t$ seconds

Given that, the honeybee flaps its wings 200 times per 1 second. So...

$200t=1 \\ \\ t=\frac{1}{200}seconds\\ \\ t= (\frac{1}{200}*1000 )milliseconds\\ \\ t=( 5 )milliseconds$

So, the time required for one wing beat is 5 milliseconds.

7 0

3 years ago

When testing for differences between treatment means, a confidence interval is computed with __________________?

KIM [24]

The confidence interval is based on mean square error. The mean squared error (MSE) of an estimator measures the average of the squares of the errors or deviations. MSE is calculated by the formula attached in the picture, where Xbar is a vector of predictions, X is the vector of predicted values.

5 0

3 years ago