All categories

3 years ago

Simplify this expression.

Mathematics

1 answer:

Tems11 [23]3 years ago

7 0

Answer:

Step-by-step explanation:

(√2 + √3)(√5 - √7) = √10 - √14 + √15 - √21

You might be interested in

What does perimeter mean

Ugo [173]

Answer: Perimeter is the distance around the outside of a shape. Area measures the space inside a shape. Learn how to calculate perimeter and area for various shapes.

4 0

3 years ago

Read 2 more answers

A sphere has a volume of 4500 cubic inches. What is the radius off the shpere

Goshia [24]

Answer:

The radius of sphere with volume 4500 cubic inches is 10.24 inches.

Step-by-step explanation:

Let V be the volume of the sphere

Given

Volume of sphere = V = 4500 cubic inches

Let r be the radius of the sphere

The volume of the sphere is given by the formula

$V = \frac{4}{3}\pi r^3$

Putting the known values

$4500 = \frac{4}{3} * \frac{22}{7} * r^3\\4500 = \frac{88}{21} * r^3\\r^3 = \frac{21}{88} * 4500\\r^3 = 1073.8636$

Taking cube root on both sides

$\sqrt[3]{r^3} = \sqrt[3]{1073.8636} \\r = 10.2403$

Rounding off to nearest hundredth

The radius is: 10.24 inches.

Hence,

The radius of sphere with volume 4500 cubic inches is 10.24 inches.

8 0

3 years ago

Using synthetic divison, what is the quotient of this expression? <br>2x^2+5x-7 over x-2

a_sh-v [17]

Answer:

A. 2x + 9 + 11 over x - 2

Step-by-step explanation:

2x^2+5x-7 over x-2

divide - 2x^2 + 5x - 7 over x - 2 = 2x + 9x - 7 over x - 2

= 2x + 9x - 7 over x - 2

divide - 9x - 7 over x - 2 = 9 + 11 over x - 2

= 2x + 9 + 11 over x - 2

7 0

3 years ago

Given x=7 y=3 and z=10, calculate the value of:<br>5x =

bulgar [2K]

The answer is 35 because it would be 5 times x which is 7

8 0

3 years ago

Read 2 more answers

Erin spent $15.75 on ingredients for cookies she's making for the school bake sale. How many cookies must she sell at $0.60 apie

zubka84 [21]

Answer:

Step-by-step explanation:

15.75/0.60=26.25

if we round it up, Erin needs to sell 27 cookies

5 0

2 years ago