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3 years ago

√7/5 Simplify the radical expression

Mathematics

2 answers:

Solnce55 [7]3 years ago

8 0

Answer:

cannot be simplified

Step-by-step explanation:

its already as simplified as you can get it

sladkih [1.3K]3 years ago

5 0

It's already in a simplified form

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The average (arithmetic mean) of a - 5 and a is x, and the average of a and a + 9 is y. What is the average of x and y?

emmasim [6.3K]

Answer:

The answer is "Option A"

Step-by-step explanation:

Given:

$\to \frac{(a-5)+a}{2}=x.....(a)\\\\\to \frac{a+(a+9)}{2}=y.....(b)\\\\$

solve the above equation:

$\to \bold{\frac{(a-5)+a}{2}=x}\\\\\to \frac{a-5+a}{2}=x\\\\\to \frac{2a-5}{2}=x\\\\\to \bold{\frac{a+(a+9)}{2}=y}\\\\\to \frac{a+a+9}{2}=y\\\\\to \frac{2a+9}{2}=y\\\\$

add both value (x and y):

$\to \bold{x+y}\\\\\to \frac{2a-5}{2}+\frac{2a+9}{2}\\\\\to \frac{2a-5+2a+9}{2}\\\\\to \frac{4a+4}{2}\\\\\to \frac{2(2a+2)}{2}\\\\\to (2a+2)\\$

average of x and y:

$\to \frac{x+y}{2}\\\\\therefore \bold{x+y= 2a+2}\\\\\to \frac{2(a+1)}{2}\\\\\to \boxed{(a+1)}\\$

8 0

3 years ago

Simplify sqrt 8y/sqrt y

Eddi Din [679]

$\frac{\sqrt{8y} }{\sqrt{y} }$

Answer:

$2\sqrt{2}$

I turned the numerator into an exponent: $2 \frac{3}{2}$

$\frac{2^{\frac{3}{2}}\sqrt{y}}{\sqrt{y}}$

The $\sqrt{y}$ will cancel out, leaving $2 \frac{3}{2}$ .

$2^{\frac{3}{2}}=2\sqrt{2}$

<em>Hope this helps!!!</em>

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3 years ago

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Please answer this question with full working and explanation and I will give you stars and mark you as brainliest thank you.

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Answer:

Step-by-step explanation:

- 3/5 divided by 12/20 = 3/5 * 20/12 = 60/60 = 1

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2 years ago

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Step-by-step explanation:

This triangle has a right angle so it is right.

It also has three different sides so it is scalene.

C is the answer

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3 years ago

Hi I need help on my math can you help me

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