How do I simplify this? thanks!

Mathematics

1 answer:

Virty [35]2 years ago

8 0

Move the numbers to your right spot and do the steps to your problem to get the answer

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Where are white blue and red boat in the Marina three fourths of the boats in the Marina are white for seventh of the remaining

xeze [42]

Answer:

Step-by-step explanation:

Here is the complete question used in answering this question :

Three-fourths of the boats in the marina are white. 4/7 of the remaining boats are blue , and the rest are red . If there are 9red boats, how many boats are in the marina?

We first have to determine the fraction of the boats that are red

1 - ( $\frac{3}{4}$ + $\frac{4}{7}$ )

1 - $\frac{21 + 16}{28}$

1 - $\frac{37}{28}$

1 - 1 $\frac{9}{28}$

= 9/28

so, 9/28 of the boats are red

let b represent the total number of boats

9/28 x b = 9

to find b, divide both sides of the equation by 28/9

b = 28

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99 POINT QUESTION, PLUS BRAINLIEST!!!

Basile [38]

1.Disc method.
In this method the volume is given by:

$\boxed{V=\pi\int\limits_a^b\big[f(x)\big]^2}$

so:

$V=\pi\int\limits_1^3x^4\,dx=\boxed{\pi\int\limits_1^3\big[x^2\big]^2\,dx}$

A) Function $f(x)=x^2$ over the interval $[1,3]$
B) We use disk method and f(x) is function of variable x, so we rotate the curve about the x-axis.

2. Shell method.

In this case volume is given by:

 $\boxed{V=2\pi\int\limits_a^bx\cdot f(x)\,dx}$

So there will be:

$V=\pi\int\limits_1^3x^4\,dx=\dfrac{2}{2}\cdot\pi\int\limits_1^3x^4\,dx=2\pi\int\limits_1^3\dfrac{x^4}{2}\,dx=
\boxed{2\pi\int\limits_1^3x\cdot\dfrac{x^3}{2}\,dx}$

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Jon is allowed to play video games 5 hours throughout the week. so far this week , he has spent 2 5/6 hours playing games . how

Ivahew [28]

B: 2 and 1/6.

Tricky one if you rush through, its meant to SEEM complicated, like a lot of math questions.

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