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kow [346]
3 years ago
8

A​ 1-ounce serving of cream cheese contains 7.6 grams of saturated fat. How much saturated fat is in 4 ounces of cream​ cheese?

Mathematics
1 answer:
KonstantinChe [14]3 years ago
4 0
7.6 grams of saturated fat times 4 Ounces
is 7.6x4, or 30.4
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If a polynomial function f(x) has roots 6 and square root of 5, what must also be a root of f(x)?
ivolga24 [154]

Answer:

-\sqrt{5}

Step-by-step explanation:

A root with square root or under root is only obtained when we take the square root of both sides. Remember that when we take a square root, there are two possible answers:

  • One answer with positive square root
  • One answer with negative square root

For example, for the equation:

x^{2}=3

If we take the square root of both sides, the answers will be:

x=\sqrt{3} \text{ or } x= -\sqrt{3}

Only getting one solution with square root is not possible. Solutions with square root always occur in pairs.

For given case, the roots are 6 and \sqrt{5}. Therefore, the 3rd root of the polynomial function f(x) had to be -\sqrt{5}

It seems you made error while writing option B, it should be - square root of 5.

4 0
3 years ago
Assume the population has a normal distribution. A sample of 25 randomly selected students Has a mean test score of 81.5 With a
Natasha_Volkova [10]

Answer:

The 90% confidence interval for the mean test score is between 77.29 and 85.71.

Step-by-step explanation:

We have the standard deviation for the sample, so we use the t-distribution to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 25 - 1 = 24

90% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 24 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.9}{2} = 0.95. So we have T = 2.064

The margin of error is:

M = T\frac{s}{\sqrt{n}} = 2.064\frac{10.2}{\sqrt{25}} = 4.21

In which s is the standard deviation of the sample and n is the size of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 81.5 - 4.21 = 77.29

The upper end of the interval is the sample mean added to M. So it is 81.5 + 4.21 = 85.71.

The 90% confidence interval for the mean test score is between 77.29 and 85.71.

6 0
3 years ago
Juanita keeps 25% of the profit from her ice cream shop. If the shop makes $750 per month, how much money will Juanita keep?
Luba_88 [7]
25%=.25
.25*750
Of equals multiply in math
Jaunita keeps 187.5
4 0
3 years ago
Read 2 more answers
What is 3 1/4 x 4 x 5 1/2
jonny [76]
3 1/4 times 4 is 16 then time 5 1/2 =71.5
6 0
3 years ago
Read 2 more answers
A straight road to the top of a hill is 2500 feet long and makes an angle of 12° with the horizontal. Find the height of the hil
Sati [7]

Answer:

520 ft

Step-by-step explanation:

A straight road to the top of a hill is 2500 feet long and makes an angle of 12 degrees with the horizontal. Find the height of the hill.

base angle = 12 deg

hypotenuse = 2500

----

 

height = 2500*sin(12) = 519.78 ft

Do 520 ft if rounded

4 0
2 years ago
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