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Ghella [55]
3 years ago
15

Take a factor out of the square root:

Mathematics
1 answer:
Allisa [31]3 years ago
8 0

Answer:

Question A)

=\sqrt{6}x

Question B)

=3a\sqrt{a}

Question C)

=5\sqrt{2}b^2

Step-by-step explanation:

A)

We are given:

\sqrt{6x^2}\, \text{ where } x\geq 0

We can rewrite the expression:

=\sqrt{6}\cdot \sqrt{x^2}

The square root and square will cancel each other out. Thus:

=\sqrt{6}x

B)

We are given:

\sqrt{9a^3}

Rewrite:

=\sqrt{9}\cdot \sqrt{a^3}

Note that the square root of 9 is simply 3. We can also factor the second part:

=3\cdot \sqrt{a^2\cdot a}

Rewriting:

=3\cdot\sqrt{a^2}\cdot\sqrt{a}

Simplify:

=3a\sqrt{a}

C)

We are given:

\sqrt{50b^4}

Rewrite. Note that 50 = 25(2):

=\sqrt{25}\cdot \sqrt{2}\cdot \sqrt{b^4}

Simplify. We can rewrite the factor as:

=5\cdot \sqrt{2}\cdot \sqrt{(b^2)^2}

The square and square root will cancel out. Thus:

=5\sqrt{2}b^2

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Answer:                                            

p(x)=x^3-4x^2+5x-2

=(2)^3-4(2)^2+5(2)-2

=8-4(4)+10-2

=8-16+10-2

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A company makes $300 each month selling its products to the public. The company has $435 in its bank account. How many months of
Galina-37 [17]

Answer:

300x = 435, given x represents the amount of months.

So 435 divided by 300 is 1.45 months for that amount.

Step-by-step explanation:

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Zina [86]
The correct answer is b!
6 0
3 years ago
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Golf-course designers have become concerned that old courses are becoming obsolete since new technology has given golfers the ab
zhenek [66]

Answer:

test statistic is ≈ -0.36

p-value is  ≈ 0.64

There is no significant evidence that the average golfer can hit the ball more than 235 yards on average.

Step-by-step explanation:

a hypothesis test where H_0: mu = 235 and H_1:mu > 235

test statistic can be calculated as follows:

z=\frac{X-M}{\frac{s}{\sqrt{N} } } where

  • sample mean driving distance (233.8 yards)
  • M is the average expected distance that the average golfer can hit the ball under null hypothesis. (235 yards)
  • s is the standard deviation (46.6 yards)
  • N is the sample size (192)

Then test statistic is z=\frac{233.8-235}{\frac{46.6}{\sqrt{192} } } =-0.3568

p-value is  0.64 >0.05

There is no significant evidence that the average golfer can hit the ball more than 235 yards on average.

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3 years ago
Kristen has 3/4
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Answer:

3/4 divide by 9 = 0.75/9 = 0.083 yard for each doll's hair ribbon

Step-by-step explanation:

Each doll's hair ribbon will be 0.083 (yards)

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