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4 years ago

PLZ ANSWER I CAN'T FAIL

Mathematics

1 answer:

Dafna11 [192]4 years ago

8 0

Answer:

I say 36 girls, i divided 3 by 5 and multiplied it by 60, so subtract 36 by 60, so there should be 24 boys

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What’s 5/6 divided by 5/2 in fraction form

nadya68 [22]

Answera:The answer is 0.3333333333 repeated

Step-by-step explanation:5/6 is 0.8333333 repeated divided by 5/2 which is 2.5 which when divided is 0.333333333 repeated.

4 0

3 years ago

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Find the volume of the solid formed by revolving the region bounded by LaTeX: y = \sqrt{x} y = x and the lines LaTeX: y = 1 y =

Strike441 [17]

Answer:

The volume is:

$\displaystyle\frac{37\pi}{10}$

Step-by-step explanation:

See the sketch of the region in the attached graph.

We set the integral using washer method:

$\displaystyle\int_a^b\pi r^2dx$

Notice here the radius of the washer is the difference of the given curves:

$x-\sqrt{x}$

So the integral becomes:

$\displaystyle\int_1^4\pi(x-\sqrt{x})^2dx$

We solve it:

Factor $\pi$ out and distribute the exponent (you can use FOIL):

$\displaystyle\pi\int_1^4x^2-2x\sqrt{x}+x\,dx$

Notice: $x\sqrt{x}=x\cdot x^{1/2}=x^{3/2}$

So the integral becomes:

$\displaystyle\pi\int_1^4x^2-2x^{3/2}+x\,dx$

Then using the basic rule to evaluate the integral:

$\displaystyle\pi\left[\frac{x^3}{3}-\frac{2x^{5/2}}{5/2}+\frac{x^2}{2}\right|_1^4$

Simplifying a bit:

$\displaystyle\pi\left[\frac{x^3}{3}-\frac{4x^{5/2}}{5}+\frac{x^2}{2}\right|_1^4$

Then plugging the limits of the integral:

$\displaystyle\pi\left[\frac{4^3}{3}-\frac{4(4)^{5/2}}{5}+\frac{4^2}{2}-\left(\frac{1}{3}-\frac{4}{5}+\frac{1}{2}\right)\right]$

Taking the root (rational exponents):

$\displaystyle\pi\left[\frac{4^3}{3}-\frac{4(2)^{5}}{5}+\frac{4^2}{2}-\left(\frac{1}{3}-\frac{4}{5}+\frac{1}{2}\right)\right]$

Then doing those arithmetic computations we get:

$\displaystyle\frac{37\pi}{10}$

6 0

3 years ago

45% to a decimal ples help out

yan [13]

Answer:

45% = 0.45

Step-by-step explanation:

45%

= $\frac{45}{100}$

= 0.45

7 0

3 years ago

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In order to get to her Grandmother's house, Little Red Riding Hood walks 6 miles

Vesnalui [34]

Answer:

4.4 miles

Step-by-step explanation:

c= sqrt 6^2+10^2

sqrt 36+100

Sqrt 136=11.66190378

10+6=16

16-11.66190378=4.33809622

3 0

3 years ago

How many outcomes are there in the sample space for tossing 2 coins?

professor190 [17]

Answer:

Step-by-step explanation:

There are 2 outcomes for the first flip and 2 outcomes for the second flip

Multiply

2*2 = 4

5 0

3 years ago

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