A)Loss is denoted by a negative integer and profit is denoted by a positive integer. A

Your school is 600 meters away from your home. Your walking speed is 200 meters per minutes. One day you set out from your home

Stels [109]

Option B

The equation that represent the minutes you have walked is 600 - 200m = 100

<em><u>Solution:</u></em>

Given that Your school is 600 meters away from your home

Your walking speed is 200 meters per minutes

Therefore,

total distance between school and home = 600 meters

walking speed = 200 meters per minute

Let "m" be the number of minutes you walked

One day you set out from your home and walk to school

After a few minutes, you are 100 meters away from your school

Therefore, remaining distance to be covered = 100 meters

If "m" represents the number of minutes walked, then distance covered in "m" minutes is given as,

distance = speed x time

distance = 200 x m = 200m

So in the total distance of 600 meters, he has covered 200m and remaining distance is 100 meters

From the above statement we can frame a equation as,

total distance - already covered distance = remaining distance

600 - 200m = 100

Thus option B is correct

7 0

3 years ago

The volume of a cone with a radius of 7 cm is 147 cubic centimeters. Which expression can be used to find h, the height ofthe co

spayn [35]

The choices are not attached but we can solve the problem from the given information

Answer:

The expression can be used to find h is $h=\frac{3V}{\pi r^{2}}$

The height of the cone is $\frac{9}{\pi }$ cm

Step-by-step explanation:

The formula of the volume of the cone is V = $\frac{1}{3}$ π r² h, where

r is the radius of its base
h is the height of it

Let us find the height of the cone from the formula of its volume

∵ V = $\frac{1}{3}$ π r² h

- Multiply both sides by 3

∴ 3 V = π r² h

- Divide both sides by π r²

∴ $\frac{3V}{\pi r^{2}}=h$

- Switch the two sides

∴ $h=\frac{3V}{\pi r^{2}}$

The expression can be used to find h is $h=\frac{3V}{\pi r^{2}}$

∵ The radius of the cone is 7 cm

∴ r = 7

∵ The volume of the cone is 147 cm³

∴ V = 147

- Substitute them in the expression of the height to find it

∵ $h=\frac{3(147)}{\pi (7)^{2}}$

∴ h = $\frac{9}{\pi }$ cm

The height of the cone is $\frac{9}{\pi }$ cm

4 0

4 years ago

20 points

densk [106]

Answer:

Step-by-step explanation:

A polynomial is an expression consisting of variables and coefficients, that involves only the operations of addition, subtraction, multiplication, and non-negative integer exponents of variables.

$A.\ \dfrac{7}{x^2}=7x^{-2}\qquad\bold{NOT}\\\\B.\ x-\sqrt7\qquad\bold{YES}\\\\C.\ \dfrac{7}{\sqrt{x}}=7x^{-\frac{1}{2}}\qquad\bold{NOT}\\\\D.\ \sqrt{7x}=\sqrt7\cdot\sqrt{x}=\sqrt7 x^\frac{1}{2}\qquad\bold{NOT}$

5 0

3 years ago

Answer for 100 POINTS! Marking every correct answer brainiest. Use the picture below.

Nat2105 [25]

Answer:

0, 1, 4, 5, 6, and 9 can be the last digits of the squares of natural numbers.

Step-by-step explanation:

When looking at a list of the perfect squares, the last digits continuously follow this pattern: 1, 4, 9, 6, 5, 6, 9, 4, 1, 0. After this it repeats. This means that these are the only numbers that can be the last digits. When you take out the repeated numbers you get: 1, 4, 5, 6, 9, 0 which when written in order is:

0, 1, 4, 5, 6, and 9

7 0

3 years ago

What are the constants in the expression 7r - 3 + 2s + 5

slega [8]

B. -3 and 5

constants are the numbers without variables (the letters) and coefficients are the numbers with variables

6 0

3 years ago