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3 years ago

QUESTION 1 What is the mean of 21, 23, 35, 40)? o A. 27 B. 31.75 e C. 19 D.29.75

Mathematics

1 answer:

tangare [24]3 years ago

3 0

Answer:

D. 29.75

Step-by-step explanation:

To determine the mean, you must add up all the numbers and then divide that number by how many numbers you added.

Here,

21 + 23 + 35 + 40

= 119

You added 4 numbers (21, 23, 35, 40),

so, 119 / 4

= 29.75

Hope this helps and a thank won't hurt! :)

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VI) You finally purchased a backup oxygen tank needed for the base which originally cost

Bond [772]

Answer:

a) $32,000

b) 9/25

c) 36%

Step-by-step explanation:

Hello!

A) How much did you save?

Let's see. In order to find the savings, we must subtract the new price from the original.

50,000 - 18,000 = 32,000

You saved $32,000 (a pretty good deal!)

B) What fraction of the original price was this?

To find the fraction, we must divide the new price from the original.

18,000/50,000
9,000/25,000 => SImplify
9/25 => Simplify

It's 9 twenty-fifths of the original price.

C) What fraction of the original price was this?

Convert the fraction to percent

9/25
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2 years ago

In tossing four fair dice, what is the probability of tossing, at most, one 3

11Alexandr11 [23.1K]

<u>Answer- </u>

In tossing four fair dice, the probability of getting at most one 3 is 0.86.

<u>Solution-</u>

The probability of getting at most one 3 is, either getting zero 3 or only one 3.

$P(A) =The \ probability \ of \ getting \ zero \ 3 =(\frac{5}{6})(\frac{5}{6})(\frac{5}{6})(\frac{5}{6})=\frac{625}{1296} =0.48$ ( ∵ xxxx )

$P(B) = The \ probability \ of \ getting \ only \ one \ 3 =(4)(\frac{1}{6})(\frac{5}{6})(\frac{5}{6})(\frac{5}{6}) = 0.38$ ( ∵ 3xxx, x3xx, xx3x, xxx3 )

P(Atmost one 3) = P(A) + P(B) = 0.48 + 0.38 = 0.86

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3 years ago

Solve for x.

White raven [17]

Step-by-step explanation:

$25(x - 910) = - 234 \\ 25x - 22750 = - 234 \\ 25x = 22516 \\ x = \frac{22516}{25} \\ x = 900 \frac{16}{25}$

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3 years ago

What is the surface area of the square pyramid represented by the net?

Dimas [21]

Answer:

<h2>7,938 Is the Area, do you need the perimiter?</h2>

Step-by-step explanation:

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3 years ago

Read 2 more answers

does somebody knows how to do this one?

vlada-n [284]

Answer:

Step-by-step explanation:

To find the area subtract the area of the semicircle from the area of the rectangle.

Although the line isn’t there, if you imagine there is one, then you will see that you form a rectangle which is the same line as the semicircle’s diameter.

The area of rectangle is:

⇒ $A = lw$