3 years ago

Rationalise the denominator 5 by√7-√5

Mathematics

1 answer:

taurus [48]3 years ago

4 0

i wasn't sure on how to explain it so i just attached ur answer

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Simplify the expression 10-4x(6+5-1) divided by 8+7

Eddi Din [679]

Simple,

writing out the problem...

$\frac{10-4x(6+5-1)}{15}$

Simplify it...

-4x(6+5-1)

-4x(11-1)

-4x(10)

-40x

Making it look like...

$\frac{10-40x}{15}$

Cancel out the common factors...

Thus making the answer:

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

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3 years ago

A line passes through the points (11, -5) and (-11, -7). What is its

ira [324]

Explanation is in the file

tinyurl.com/wpazsebu

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3 years ago

A Triangle has an angle that measures 137.3 degrees. The other two angles are in a ratio of 3:4. What are the measures of those

Andreyy89

So we start off by subtracting 137.3 from 180 getting 42.5. If you add the ratios up (3+4) you get 7 and 7 should equal 42.5. thus,

42.5/7= 85/14

(85/14)*3=18.2 or (255/14 to be exact)
(85/14)*4= 24.29 or (170/7 to be exact)

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3 years ago

Which is a correct first step for solving this equation? X+7=2x+5-4x

shepuryov [24]

Step-by-step explanation:

you collect like terms from both sides that is, the variables on one side and the constants on the other side

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4 years ago

Read 2 more answers

The diameter of your bicycle wheel is 20 inches. How far will you move in one turn of your wheel? a. 56.3 inches c. 125.6 inches

Ann [662]

20 x 3.14 = 62.8 is your answer