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3 years ago

Simplify: |2-5| - (12 ÷ 4-1)^2

Mathematics

1 answer:

Zanzabum3 years ago

4 0

The answer to the problem is 1

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The ratio of the number of boys to the number of girls in a school is 5 : 7. If there are 600 students in the school, how many a

enot [183]

Answer:

350 of the students are girls.

Step-by-step explanation:

5+7 = 12

600/12 = 50

50 x 7 = 350

4 0

3 years ago

What is the coefficient of the x-term in the expression 4x+5xy-2y

solmaris [256]

Answer:

Step-by-step explanation:

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3 years ago

What is the slope of this line of best fit?

Bas_tet [7]

Answer:

The slope of the line of best fit is $\frac{-6}{7}$ ⇒ 2nd option

Step-by-step explanation:

The formula of the slope of a line is $m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

<em>To find the slope of the best line fit choose two points their positions make the number of the points over the line equal to the number of the points below the line</em>

From the attached graph points (1 , 9) and (8 , 3) are the best choice

∵ The line passes through points (1 , 9) and (8 , 3)

∴ $x_{1}$ = 1 and $x_{2}$ = 8

∴ $y_{1}$ = 9 and $y_{2}$ = 3

- Substitute them in the formula of the slope

∴ $m=\frac{3-9}{8-1}=\frac{-6}{7}$

∴ The slope of the line of best fit is $\frac{-6}{7}$

6 0

4 years ago

reggie is making a double layer cake the recipe for the first layer 2 1/4 cups of sugar the recipe for the second layer calls fo

Vlad1618 [11]

2 plus 1 is 3
1/4 plus 1/4 is 1/2
Both recipes would be 3 1/2 cups
5 cups minus 3 1/2 cups would leave him with 1 1/2 cups extra

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3 years ago

Can somebody PLEASE explain in simple terms how to find probability involving the word "and"

schepotkina [342]

In probability there is a very important distinction between the words AND & OR.

AND means that the outcome has to satisfy both conditions at the same time.

OR Means that the outcome has the satisfy one condition OR the other condition OR both at the same.

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3 years ago