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2 years ago

Find the rate of the following:

Mathematics

1 answer:

Lynna [10]2 years ago

8 0

A- 20%
B- 25%
C- 10%
D- 25%
E- 35%
Brainliest? :))

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Multiply

Dmitriy789 [7]

Answer:

The product of given two fractions is

$\frac{4(x+2)}{(x-1)(x+3)}$

Therefore $\frac{2(2+3)}{x(x-1)}\times \frac{4x(x+2)}{10(x+3)}=\frac{4(x+2)}{(x-1)(x+3)}$

Step-by-step explanation:

Given expression is

$\frac{2(2+3)}{x(x-1)}\times \frac{4x(x+2)}{10(x+3)}$

To find the product of two given fractions as below :

$\frac{2(2+3)}{x(x-1)}\times \frac{4x(x+2)}{10(x+3)}=\frac{2(5)}{x(x-1)}\times \frac{2x(x+2)}{5(x+3)}$

$=\frac{10}{x(x-1)}\times \frac{2x(x+2)}{5(x+3)}$

$=\frac{20x(x+2)}{5x(x-1)(x+3)}$

$=\frac{20x^2+40x}{(5x^2-5x)(x+3)}$ (multiply each term in the factor to each term in the another factor )

$=\frac{20x^2+40x}{5x^3+15x^2-5x^2-15x}$ ( adding the like terms )

$=\frac{20x^2+40x}{5x^3+10x^2-15x}$

$=\frac{5x(4x+8)}{5x(x^2+2x-3)}$

$=\frac{4(x+2)}{(x-1)(x+3)}$

Therefore $\frac{2(2+3)}{x(x-1)}\times \frac{4x(x+2)}{10(x+3)}=\frac{4(x+2)}{(x-1)(x+3)}$

Therefore the product of given two fractions is $\frac{4(x+2)}{(x-1)(x+3)}$

6 0

3 years ago

Wich numbers are rational (r) or irrational (i)? 68,18/42,70.2329,91.154389,5.

skelet666 [1.2K]

68 is rational
18/42 is rational
70.2.29 is rational
91.154389 is rational
5 is

3 0

2 years ago

Read 2 more answers

Wright an Expression to represent: three minus the product of two and a number z

Nookie1986 [14]

Answer:

2z-3

Step-by-step explanation:

7 0

3 years ago

What's the surface area of this figure? (figure shown on picture)

KIM [24]

Answer:

800 in²

Step-by-step explanation:

Let’s find the area of all the shapes in the net.

10 · 10 = 100

100 · 2 = 200

15 · 10 = 150

150 · 4 = 600

200 + 600 = 800

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2 years ago

A builder is finishing a new vet clinic and wants to install a drip edge along the roof. The edging he has decided to use comes

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69 rolls in total will be needed

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