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3 years ago

12

Please help picture is there

1 answer:

Nonamiya [84]3 years ago

8 0

Answer:

B

Step-by-step explanation:

Using the rule of radicals/ exponents

$\sqrt{a}$ × $\sqrt{b}$ ⇔ $\sqrt{ab}$

$a^{\frac{m}{n} }$ ⇔ $\sqrt[n]{a^{m} }$

Given

$\sqrt[3]{x^5 y}$

= $\sqrt[3]{x^5}$ × $\sqrt[3]{y}$

= $x^{\frac{5}{3} }$ $y^{\frac{1}{3} }$ → B

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Working together, it takes Sam, Jenna, and Francisco two hours to paint one room. When Sam works alone, he can paint one room in

lutik1710 [3]

Answer: 12 hours

Step-by-step explanation:

Given : Working together, it takes Sam, Jenna, and Francisco two hours to paint one room.

When Sam works alone, he can paint one room in 6 hours. When Jenna works alone, she can paint one room in 4 hours.

Let 't' be the time taken by Francisco to paint one room on his own.

Then , we have

Rate of work of Sam +Rate of work of Jenna + Rate of work of Francisco =Rate of work they all do together

$\dfrac{1}{6}+\dfrac{1}{4}+\dfrac{1}{t}=\dfrac{1}{2}$

i.e. $\dfrac{1}{t}=\dfrac{1}{2}-(\dfrac{1}{6}+\dfrac{1}{4})$

i.e. $\dfrac{1}{t}=\dfrac{1}{2}-(\dfrac{4+6}{24})$

i.e. $\dfrac{1}{t}=\dfrac{1}{2}-\dfrac{10}{24}$

i.e. $\dfrac{1}{t}=\dfrac{1}{2}-\dfrac{5}{12}$

i.e. $\dfrac{1}{t}=\dfrac{6-5}{12}$

i.e. $\dfrac{1}{t}=\dfrac{1}{12}$

i.e. t= 12

Hence, Francisco would take 12 hours to paint one room on his own.

8 0

3 years ago

Fifty people were surveyed about their favorite pizza topping. The results of the survey are displayed in the circle graph. How

vekshin1

I need the picture to fully answer your question
dude.

5 0

3 years ago

Describe how you will subtract to find the difference of 604-357

Elza [17]

Answer:

just subtract it

Step-by-step explanation:

604-357=247

6 0

2 years ago

Read 2 more answers

Pentagon ABCDE is shown on the coordinate plane below.

ANTONII [103]

Point D will pass from (1,-2) to (-1,2)

The second choice is the correct one.

5 0

2 years ago

Read 2 more answers

Solve x2 − 10x = −13.

aev [14]

Answer:

B

Step-by-step explanation:

First, let's rearrange the given equation into something more recognizable. If we add 13 to both sides, we now have the polynomial $x^{2}-10x+13$ . We can now use the quadratic formula to solve.

Remember that the quadratic formula is

$\frac{-b+/-\sqrt{b^{2}-4ac } }{2a}$

Substitute the numbers from the equation into the formula.

$\frac{-(-10)+/-\sqrt{(-10)^{2}-4(1)(13) } }{2(1)}$

Simplify:

$\frac{10+/-\sqrt{100-52} }{2}$

$\frac{10+/-\sqrt{48} }{2}$

Here, I'm going to assume that there was a mistype in option B because if we divide out the 2 we end up with $5+/-\sqrt{48}$ .

Hope this helps!

6 0

2 years ago