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harina [27]
1 year ago
8

√(4/7)^2 = equations with square roots and cube roots

Mathematics
2 answers:
finlep [7]1 year ago
4 0
The answer is : 4/7
Decimal: 0.571 (Not Rounded)
zhenek [66]1 year ago
3 0

Answer:

See below

Step-by-step explanation:

If you are squaring a number, and then taking the square root of it, you are essentially undoing the original operation:

\displaystyle \sqrt{\biggr(\frac{4}{7}\biggr)^2}=\biggr[\biggr(\frac{4}{7}\biggr)^2\biggr]^{\frac{1}{2}}=\biggr(\frac{4}{7}\biggr)^{2*\frac{1}{2}}=\frac{4}{7}

Hence, we are back starting with the original number

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If each dozen cookies needs 3/4 of a bag of flour to make,how many bags of flour does grandma needs to buy if she is making 10do
stepan [7]

Answer:

7.5 flour bag

Step-by-step explanation:

we are given

flour bags need to make 1 dozen cookies=3/4

we have to find

number of flour bags for 10 dozen cookies needed =?

1 dozen cookies needed flour=3/4

and for 10 dozen cookies

we will multiply 10 on both sides

it will give

10 dozen cookies needed flour bags=(3/4)*10=30/4=15/2=7.5

6 0
2 years ago
PLEASE hELp ASAP WILL MARK BRAINLIEST!
raketka [301]

Answer:

Its b

Step-by-step explanation:

The number line is saying people spend 70 n below.

5 0
2 years ago
If nelson invests $5000 for 4 years and earns $600, what is the simple interest rate?
klio [65]

Answer: Simple interest rate = 3%.


Step-by-step explanation: We are given invested amount = $5000.

Number of years of investment = 4 years.

Interest earned = $600.

Simple interest formula.

I = P R T.

Where I is the earned interest, P is the invested amount , R is the rate of interest and T is the time in years.

Plugging values in formula, we get

600 = 5000 × R × 4

600 = 20000R.

Dividing both sides by 20000, we get

\frac{600}{20000}  = \frac{20000R}{20000} .

0.03 = R.

Multiplying by 100 to convert it in percentage, we get

0.03 × 100 = R

R = 3 %.



4 0
3 years ago
Simplify this expression: -2(-4x + 2y - 6)
Monica [59]

Answer:

8x - 4y + 12

Step-by-step explanation:

-2(-4x + 2y - 6)

(-2)(-4x) + (-2)(2y) + (-2)(-6)

(2 * 4x) - (2 * 2y) + (2 * 6)

8x - 4y + 12

4 0
2 years ago
Is the following relation a function?
Stels [109]

No, if you do the vertical line test( draw a vertical line on each graph line that hits the circle) if the lline touches more than one point AT ANY TIME it is not a function. So in this case it is not a function


3 0
3 years ago
Read 2 more answers
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