All categories

2 years ago

The table displays the scores of students on a recent exam. Find the mean of the

Mathematics

1 answer:

Crank2 years ago

7 0

Answer:

please see the photo above for detailed analysis.

You might be interested in

Which statement is true?

Mumz [18]

The answer is D.

|-4| < 4
4 < 4

|-1| < 0
1 < 0

|-6| = -6
6 = -6

|-14| > 10
14 > 10

6 0

3 years ago

In the game Kazoo, teams lose one point each time they skip a turn. They earn one point each time their team guesses correctly.

enot [183]

If they have -8 points and +6 points, that'd leave them with a total of -2 points.
So the answer is -2.

4 0

3 years ago

a square garden has a diagonal of 12 m. What is the perimeter of the garden? Express in simplest radical form

lianna [129]

Answer:

The perimeter of the garden, in meters, is $24\sqrt{2}$

Step-by-step explanation:

Diagonal of a square:

The diagonal of a square is found applying the Pythagorean Theorem.

The diagonal of the square is the hypothenuse, while we have two sides.

Diagonal of 12m:

This means that $d = 12$ , side s. So

$s^2 + s^2 = 12^2$

$2s^2 = 144$

$s^2 = \frac{144}{2}$

$s^2 = 72$

$s = \sqrt{72}$

Factoring 72:

Factoring 72 into prime factors, we have that:

72|2

36|2

18|2

9|3

3|3

$72 = 2^{3}*3^{2}$

So, in simplest radical form:

$s = \sqrt{72} = \sqrt{2^{3}*3^{2}} = \sqrt{2^3}*\sqrt{3^2} = 2\sqrt{2}*3 = 6\sqrt{2}$

Perimeter of the garden:

The perimeter of a square with side of s units is given by:

$P = 4s$

In this question, since $s = 6\sqrt{2}$

$P = 4s = 4*6\sqrt{2} = 24\sqrt{2}$

The perimeter of the garden, in meters, is $24\sqrt{2}$

5 0

3 years ago

Dylan is saving money to buy a new bike that costs $195. He has $25 already saved and plans to save $40 each week. Which equatio

lakkis [162]

Answer:

25+40x=195

Step-by-step explanation:

If he already has $25, you need to add that to 40x (40 times the amount of weeks it takes to get to 195, added with 25).

6 0

3 years ago

Find the quotient of 2.632 · 104 and 2 · 10-7.

gtnhenbr [62]

First one:
2.632 • 104 = 273.728

Second one:
2 • 10 - 7 = 13

7 0

3 years ago