3 years ago

Samantha is making cookies for her friends

Mathematics

1 answer:

maxonik [38]3 years ago

7 0

3.7x4=14.8. 14.8 cups of sugar

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The answer is that the circumference of the CD is 37.7 cm.

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4 years ago

If x represents a number, then write an expression for a number that is eight less than twice the value of x.

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Step-by-step explanation:

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4 years ago

Select the statement that correctly describes the expression below

Kitty [74]

Answer:

Step-by-step explanation:

The equation is (2x+5)^2.

It can't be A because 2 is the multiplier for only x.

It can't be C because the square is outside of the equation.

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Hope this helped!

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4 years ago

2 (e+4) = 8e-20<br>find the variable

alexira [117]

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4 years ago

A random sample of 10 chocolate energy bars of a certain brand has, on average, 230 calories per bar, with a standard deviation

Troyanec [42]

Answer:

The confidence interval for the true mean calorie content is

$215$

Step-by-step explanation:

In this problem we know the mean and standard deviation fo the sample, so we can compute the CI like this:

$\bar{x}-t*s/\sqrt{n}< \mu$

We need to determine t for 10-1=9 degrees of freedom and 99% confidence level. We look up in the t-table and the value for t is 3.2498.

Then we can calculate the limits of the CI:

$\bar{x}-t*s/\sqrt{n}< \mu$

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4 years ago