All categories

2 years ago

Write the expression: Five times the opposite of a number *

Mathematics

1 answer:

vovikov84 [41]2 years ago

8 0

Answer:

5(-x)

Step-by-step explanation:

You might be interested in

What’s this in standard form

AlladinOne [14]

Answer:

0.614

Step-by-step explanation:

4 0

2 years ago

What is the reciprocal of 2/7

sineoko [7]

Answer:

the reciprocal of 2/7 is 7/2. you just switch the numbers

4 0

2 years ago

A sphere is inscribed in a cube with a surface area of 216 square centimeters. What is the volume of the sphere

pentagon [3]

Answer:

$V=298.5cm^3$

Step-by-step explanation:

To find the volume of the sphere we need to know its radius.

And the radius can be found with the information we have about the surface area.

The formula for the surface area is as follows:

$SA=4\pi r^2$

from this formula we clear the radius r:

$r^2=\frac{SA}{4\pi}\\ \\r=\sqrt{\frac{SA}{4\pi} }$

and we substitute the known value of the surface area, and also the value of $\pi$ :

$r=\sqrt{\frac{216cm^2}{4(3.1416)} }\\ \\r=\sqrt{\frac{216cm^2}{12.5664} }\\ \\r=\sqrt{17.1887cm^2}\\ \\r=4.146cm$

and now that we know the radius we find the volume:

$V=\frac{4\pi r^3}{3} \\\\V=\frac{4(3.1416)(4.146cm)^3}{3}\\ \\V=\frac{895.521cm^3}{3}\\ \\V=298.5cm^3$

the volume of the sphere is $298.5cm^3$

7 0

2 years ago

Rewrite using a single positive exponent.<br> 78<br> 73

vivado [14]

Hey! I don’t know if this is what you mean.. but I tried to understand it.

78^1
73^1

Have a good day :)

3 0

2 years ago

Amanda and Ndiba are selling flower bulbs for a school fundraiser. Customers can buy packages of tulip bulbs and bags of daffodi

Gemiola [76]

Answer is on the attachment. Brainlist pls.

Step-by-step explanation:

5 0

2 years ago