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bazaltina [42]
3 years ago
8

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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A CD is shaped like a circle wit a diameter of 12 cm. to the nearest centimeter what is the circumference of the CD
andre [41]

Answer:

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

5 0
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.​
Komok [63]

Answer:

2x-8

Step-by-step explanation:

5 0
4 years ago
Select the statement that correctly describes the expression below
Kitty [74]

Answer:

B

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.

It can't be D because again, the square is outside of the equation.

So the only thing left is B.

Hope this helped!


7 0
4 years ago
2 (e+4) = 8e-20<br>find the variable
alexira [117]
Distribute the 2 on the left to get 2e + 8 = 8e - 20 Add 20 to both sides and subtract 2e from both sides. 28 = 6e Divide both sides by 6. e = 14/3
6 0
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

5 0
4 years ago
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