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lesantik [10]
3 years ago
5

In a class of 45 students, 25 play

Mathematics
1 answer:
Alexxandr [17]3 years ago
3 0

Answer:

a. I think is twenty

d. ??????????

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The volume of this cube is 64 cubed cm. What is the cube's height? *hint l x w x h = 64 ----The shape is a cube PLZ HURRY WILL G
Flura [38]

Answer:

4 cm

Step-by-step explanation:

It's just what cubed is 64. The answer is 4 by the way since

4*4*4=16*4=64

3 0
4 years ago
-1/9 - (-2/15)<br>write in simplest form
cupoosta [38]
<span>-1/9 - (-2/15)
= </span>-1/9  +2/15<span>
= -5/45 + 6/45
= 1/45</span>
4 0
3 years ago
A brand of cereal had 1.2 milligrams of iron per serving. Then they changed their recipe so they had 1.8 mg of iron per serving.
Anvisha [2.4K]

Using it's concept, it is found that the percent increase in the amount of iron per serving was of 50%.

<h3>What is the percentage increase of a value?</h3>

It is given by the increase divided by the initial value, and subtracted by 100%.

In this problem:

  • The initial value is of 1.2 mg.
  • The increase was of 1.8 mg - 1.2 mg = 0.6 mg.

Hence the percent increase is given by:

P = 0.6/1.2 x 100% = 50%.

More can be learned about percentages at brainly.com/question/10491646

#SPJ1

8 0
2 years ago
Find the distance from point A(−14, 5) to the line −x+2y = 14.
Ad libitum [116K]

Answer:

The distance from point A to given line is: 2√5 or 4.472 units

Step-by-step explanation:

Given equation of line is:

-x+2y= 14

And the point is:

A = (x_1,y_1) = (-14,5)

The standard form of equation of line is:

Ax+By+C = 0

Converting the given equation into standard form

-x+2y-14=0

The distance of a point (x1,y1) from a line is given by the formula:

d = \frac{|Ax_1+By_1+C}{\sqrt{A^2+B^2}}

In the given details,

A = -1, B = 2, C = -14

x1 = -14, y1 = 5

Putting the values in the formula

d = \frac{|(-1)(-14)+(2)(5)-14|}{\sqrt{(-1)^2+(2)^2}}\\d = \frac{14+10-14}{\sqrt{1+4}}\\d = \frac{10}{\sqrt{5}}\\d = \frac{5*2}{\sqrt{5}}\\d = \frac{\sqrt{5}*\sqrt{5}*2}{\sqrt{5}}\\d = 2\sqrt{5}\\d = 4.472\ units

Hence,

The distance from point A to given line is: 2√5 or 4.472 units

5 0
3 years ago
một lớp học có 20 người. Hỏi có bao nhiêu cách bầu ra một ban lãnh đạo gồm một lớp trưởng, một bí thư và một lớp phó. Yêu cầu kh
scoray [572]

Answer:

MNNNNNNNNNNNNNNNNNNNNNNNNm

Step-by-step explanation:

nknnnnnnnnnnnnnnnnnnnkkkkkkkkkkkkknknklol

loser

6 0
3 years ago
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