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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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posledela

Answer:

Equation: ($26÷4 hours) × 25 hours

Answer: $156.25

Step-by-step explanation:

First, you would have to find out how much she earns per hour, so $26÷4. Then you multiply that by 25.

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(hope this helps :P)

3 0
2 years ago
(5+w)(w+4) in standard form
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Answer:

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Step-by-step explanation:

Multiply it out, collect terms, and write as descending powers of w.

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Now, you have two dices. You are asked to find the probability of getting a face of 3, 4 or 5. The probability of each face of a dice is 1/6, because there are a total of 6 faces. When you use two dices, it becomes 2/12 or still 1/6. So, the total probability of getting either 3, 4 or 5 is: 1/6 + 1/6 + 1/6 = 1/2. However, you still have to multiply this with the total probability of getting a prime numbers which are 1, 2, 3 and 5. Thus, 1/6 + 1/6 + 1/6 + 1/6 = 2/3

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Answer:

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3 years ago
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