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Minchanka [31]
3 years ago
8

Simplify the expression 7h+(-6.9d) - 18 + 5d - 3.2h. 7h + (-6.9d) - 18 + 5d - 3.2h =

Mathematics
2 answers:
Roman55 [17]3 years ago
8 0

Answer:

the answer is -1.9d+3.8h-18

KATRIN_1 [288]3 years ago
7 0
7h - 6.9d - 18 + 5d - 3.2h
= 7h - 3.2h -6.9d + 5d - 18
= 3.8h - 1.9d - 18
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nadezda [96]

Answer:16

Step-by-step explanation:

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3 years ago
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Simplify<br> Зе –6e + Зе – 4e =<br> How do you do it
Anvisha [2.4K]

Answer:

Let's simplify step-by-step.

3e−6e+3e−4e

=3e+−6e+3e+−4e

Combine Like Terms:

=3e+−6e+3e+−4e

=(3e+−6e+3e+−4e)

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Step-by-step explanation:

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4 0
4 years ago
What is the volume of this cone?
olchik [2.2K]

Answer:

The volume of the cone is approximately 453.0 cm³

Step-by-step explanation:

The volume of a cone is one third that of a cylinder with the same height and radius.  That gives us  1/3 πr²h, where r is radius and h is height.

However, we are not given the height of the cone, but the side length.  We can work out the height using the Pythagorean theorem, as we have a right triangle with the height, base radius, and length.  You may recall that the Pythagorean theorem states that the square of the hypotenuse of a right triangle is equal to the sum of the squares of it's other two sides:

a^2 = b^2 + c^2

So we can find the height of the cone with that:

10.8^2 = 7.4^2 + h^2\\h^2 = 10.8^2 - 7.4^2\\h^2 = 116.64 - 54.76\\h^2 = 61.88\\h = \sqrt{61.88}\\h \approx  7.9

Now that we have the cone's height, we can solve for its volume:

v = \frac{1}{3} \pi r^2 h\\v = \frac{1}{3} \pi \times 7.4^2  \times 7.9\\v = \frac{1}{3} \pi \times 54.76 \times 7.9\\v = \frac{1}{3} \pi \times 432.6\\v = \pi \times 144.2\\v \approx 453.0 cm^3

5 0
3 years ago
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The following statistics represent weekly salaries at a construction company.
11111nata11111 [884]

Answer:

The most common salary is $605. The salary that half the employees salaries surpass is $630. The percent of employees salary that serve because $700 is 75%. Percent of employees salaries that were less than $480 is 25%. The 9% percent of employees salaries this surpass $891 years. The total weekly salary of 104 employees is 57200.

Step-by-step explanation:

It is given that mean is $550, first quartile is $480,  median is $630, third quartile is $700,  mode is $605 and 91st percentile is $891.

First quartile is at 25% of the data, median is at 50% of the data, third quartile is at 75% of the data.

The mode of a set of data values is the value that occurs most often.

The most common salary is mode, therefore the most common salary is $605.

The salary that half the employees salaries surpass is $630. Because median is the half of the data.

The percent of employees salary that serve because $700 is 75%. Because $700 is third quartile.

Percent of employees salaries that were less than $480 is 25%. Because $480 is first quartile.

The percent of employees salaries this surpass $891 years is 9%. Because $891 is 91 percentile. Therefore 9% employees get more than $891.

If the company has 104 employees than the total salary of employees is

104\times 550=57200

because means is $550, therefore the total weekly salary of 104 employees is 57200.

8 0
3 years ago
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If 75% of a number is 60, what is 20% of the number
Colt1911 [192]
I hope this is right i think the answer is 40

6 0
4 years ago
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