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worty [1.4K]
3 years ago
7

Are the two expressions equivalent 5(3x+8) 8x+8 when x=10

Mathematics
2 answers:
Brums [2.3K]3 years ago
7 0

Answer:no

Step-by-step explanation:

5(3(10)+8)

5(30+8)

5(38)=190

8(10)+8

80+8

88

88≠190 so no

erik [133]3 years ago
6 0

Answer:

No, the two expressions are not equivalent when x = 10.

Step-by-step explanation:

5((3)(10)+8) = 190

(8)(10)+8 = 88

Hope this helps!

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Which of these relationships would most likely have a NEGATIVE correlation?
Luda [366]
<h3>Answer:  Choice C</h3>

Explanation:

As the person spends more time raking, the number of leaves will go down. Therefore, we have a negative correlation. Such correlations occur when one variable goes up while the other goes down (and vice versa).

The reason why it's considered negative correlation is because the regression line has a negative slope.

This is why choice C is the answer. This assumes that no extra leaves fall on the ground, and we assume that we don't have nearby leaves blow into the yard.

In contrast, something like choice A has both variables go up together. As the temperature rises, so does the ice cream sales. The same goes for choice B. We consider these cases to have positive correlation. Choice D doesn't appear to have any correlation at all. The person's height doesn't have any connection to the number of pets they may have.

3 0
2 years ago
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Find the volume of a right circular cone that has a height of 17.7 cm and a base with a diameter of 15.8 cm. Round your answer t
Lelu [443]

Answer:

1156.8cm^3

Step-by-step explanation:

The volume of a cone is given as:

V =\frac{1}{3}  \pi r^2h

where r = radius

h = height of cone

The height of the cone is 17.7 cm and its base radius is 7.9 cm (diameter is 15.8 cm).

Its volume is:

V = \frac{1}{3} * \pi = 7.9^2 * 17.7\\ \\V = 1156.8cm^3

3 0
3 years ago
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A random sample of individuals over the age of 18 are sampled and asked, "What is your level of education?" The results are summ
grigory [225]

Answer:

Check the explanation

Step-by-step explanation:

1.  The level of education as high school diploma (31% area).

Therefore the most frequent education level is High school Diploma.

2. Suppose there are 200 people in random sample. Pie diagram shows the percentage of people with Bachelor's degree is 19%

Therefore the number of people having Bachelor's degree among 200 people = 200×19% = 38

Therefore the answer is 38 .

3. Now the population size given is 6000. The percentage of individuals who have some collage but no degree is 17%

Therefore the number of individuals among 6000 individuals who have some collage but no degree = 6000×17% = 1020

Thereforethe answer is 1020 .

4. The percentage of individuals who have an associate's degree is 9% as per the pie diagram. The above pie diagram is based on a random sample of individuals. If we take another sample then also we may get different result. Therefore if we considere the entire population of U.S.A. the percentage of individuals who have an associate's degree may differ from 9% .

4 0
3 years ago
Write of the following represents 6x^3/4 in radical form?
kenny6666 [7]

Answer:

6\sqrt[4]{x^3}[/tex]

Step-by-step explanation:

6x^3/4

is the same as

6 (x^3/4)

and the rule to change an exponent to a radical is power over root

so in this case, the power, 3 is over the root, 4

So it would be 6\sqrt[4]{x^3}[/tex]

3 0
3 years ago
What is (x+4)(3x+7)/(x+4)(x+2) simplified?
iren2701 [21]

Answer:

\frac{3x+7}{x+2}

Step-by-step explanation:

Given the following question:

\frac{(x+4)(3x+7)}{(x+4)(x+2) }

In order to simplify the expression given we can only cancel the common factor which is four.

\frac{(x+4)(3x+7)}{(x+4)(x+2) }
cf=(x+4)
\frac{x+4}{x+4}
=\frac{3x+7}{x+2}

Cannot be simplified further due to it not having any more common factors. Your answer is "3x + 7 / x + 2."

Hope this helps.

8 0
2 years ago
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