2 years ago

-7 over -10 simplified

Mathematics

1 answer:

OLga [1]2 years ago

8 0

The negatives cancel to form a positive. The answer is $\frac{7}{10}$

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Use the function f(x) = 2x3 - 3x2 + 7 to complete the exercises.

GenaCL600 [577]

Easy
sub 2 for x

f(2)=2(2)^3-3(2)^2+7
f(2)=2(8)-3(4)+7
f(2)=16-12+7
f(2)=11

4 0

2 years ago

a carton can hold 1,000 unit cubes that measure 1 inch by 1 inch by 1 inch. describe the dimensions of the carton using cubes

Alik [6]

Volume of the carton=1000 cubic inches.
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Hoped this helped!
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3 years ago

The life in hours of a thermocouple used in a furnace is known to be approximately normally distributed, with standard deviation

Effectus [21]

Answer:

62 is the minimum sample size needed

Step-by-step explanation:

We know that the population is approximately normally distributed so we will use a z-score for 95% confidence, which is 1.96. We are given the population standard deviation of σ = 20, and are given that the error should be 5 or less hours. The fact that it gives us sample data is irrelevant since we are told the population is approximately normally distributed and are given the population standard deviation.

See the attached photo for the calculation of the minimum sample size

8 0

3 years ago

A jelly bean factory packaged 913 special ordered bags last Tuesday. The shift manager randomly picked seven bags to count the n

hoa [83]

Answer:

I think the answer is 1/5

Step-by-step explanation:

Add up the total number of jellybeans, 20 + 45 + 30 + 5 = 100.

Divide the number of watermelon jellybeans by the total: 20/100 and reduce the fraction to 1/5.

Hope this help you! :)

6 0

3 years ago

Read 2 more answers

Theoretical probability is the same thing as experimental probability. True False

Archy [21]

Theoretical probability is what we expect to happen, where experimental probability is what actually happens when we try it out. So the answer is FALSE.

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3 years ago