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2 years ago

35,000 divided by 120

Mathematics

2 answers:

Naya [18.7K]2 years ago

8 0

Answer:

291.666666667

Step-by-step explanation:

Rounds to 291.7

Viktor [21]2 years ago

4 0

Answer:

35000/120 = 291 and 2/3

Step-by-step explanation:

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Solve the following inequality: 3x + 9 ≤7x -11.

m_a_m_a [10]

Answer:

x ≥ -3

Step-by-step explanation:

Step 1 :

Pulling out like terms :

1.1 Pull out like factors :

-4x - 12 = -4 • (x + 3)

Equation at the end of step 1 :

Step 2 :

2.1 Divide both sides by -4

Remember to flip the inequality sign:

Solve Basic Inequality :

2.2 Subtract 3 from both sides

x ≥ -3

Inequality Plot :

2.3 Inequality plot for

-4.000 X - 12.000 ≥ 0

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3 years ago

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Find the midpoint of the segment with the following endpoints.<br> (3,0) and (0, –8)

givi [52]

Answer:

the midpoint would be (1.5,-4)

Step-by-step explanation:

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5 0

3 years ago

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Calculate the sample mean and sample variance for the following frequency distribution of heart rates for a sample of American a

spin [16.1K]

Answer:

$Mean = 68.9$

$s^2 =18.1$ --- Variance

Step-by-step explanation:

Given

$\begin{array}{cccccc}{Class} & {51-58} & {59-66} & {67-74} & {75-82} & {83-90} \ \\ {Frequency} & {6} & {3} & {11} & {13} & {4} \ \end{array}$

Solving (a): Calculate the mean.

The given data is a grouped data. So, first we calculate the class midpoint (x)

For 51 - 58.

$x = \frac{1}{2}(51+58) = \frac{1}{2}(109) = 54.5$

For 59 - 66

$x = \frac{1}{2}(59+66) = \frac{1}{2}(125) = 62.5$

For 67 - 74

$x = \frac{1}{2}(67+74) = \frac{1}{2}(141) = 70.5$

For 75 - 82

$x = \frac{1}{2}(75+82) = \frac{1}{2}(157) = 78.5$

For 83 - 90

$x = \frac{1}{2}(83+90) = \frac{1}{2}(173) = 86.5$

So, the table becomes:

$\begin{array}{cccccc}{x} & {54.5} & {62.5} & {70.5} & {78.5} & {86.5} \ \\ {Frequency} & {6} & {3} & {11} & {13} & {4} \ \end{array}$

The mean is then calculated as:

$Mean = \frac{\sum fx}{\sum f}$

$Mean = \frac{54.5*4+62.5*3+70.5*11+78.5*13+86.5*4}{6+3+11+13+4}$

$Mean = \frac{2547.5}{37}$

$Mean = 68.9$ -- approximated

Solving (b): The sample variance:

This is calculated as:

$s^2 =\frac{\sum (x - \overline x)^2}{\sum f - 1}$

So, we have:

$s^2 =\frac{(54.5-68.9)^2+(62.5-68.9)^2+(70.5-68.9)^2+(78.5-68.9)^2+(86.5-68.9)^2}{37 - 1}$

$s^2 =\frac{652.8}{36}$

$s^2 =18.1$ -- approximated

5 0

3 years ago

What is the radius of a hemisphere with a volume of 6466 to the nearest tenth of a meter?

Alecsey [184]

Answer:

14.6m

Step-by-step explanation:

volume of a hemisphere = (2/3)πr3

Therefore r = Cube root of ( Volume * 3/2 * 1/ pi)

r = cube root ( 6466 * 3/2 * 1/ π)

r = 14.56

in the nearest tenth of a meter = 14.6 m

7 0

3 years ago

Can someone help me with this problem??

Butoxors [25]

Never mind, i don't know i'm sorry

6 0

3 years ago

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