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3 years ago

This is timed and Will mark BRAINLIEST!!!

Mathematics

1 answer:

gulaghasi [49]3 years ago

3 0

Answer:

the last one with 2y in the denominator

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What should be calculated first to solve this story problem? A bus driver drove a bus 43.9 miles per hour for 5 hours on Monday.

alina1380 [7]

He went........C I'll say C...

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3 years ago

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I need help with adding complex numbers

Usimov [2.4K]

For example:

Find: (3-i)+(2+3i) by graphing

Step 1: Graph 3-i and 2+3i on the complex plane. Connect each of these numbers to the origin with a line segment.

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3 years ago

What is 4 2/7 x 2 1/5

Ierofanga [76]

It would be: 4 2/7 * 2 1/5
= 30/7 * 11/5
= 330/35
= 66/7

In short, Your Answer would be 66/7 or 9 3/7

Hope this helps!

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3 years ago

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Determine if the figures are similar. If they are, what is the scale factor from the first figure to the second figure?

lora16 [44]

Answer:

The scale factor is $\frac{3}{2}$

Step-by-step explanation:

Yes the figures are similar to each other. The ratio of their linear measurements is in uniform ration

The ration of radius of large cylinder (R) to that of the smaller cylinder (r) is

$\frac{18}{12} \\\frac{3}{2}$

Like wise the ration of height of large cylinder (H) to that of the smaller cylinder (h) is

$\frac{30}{20} \\\frac{3}{2}$

The scale factor is $\frac{3}{2}$

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3 years ago

Farmer Jones, and his wife, Dr. Jones, decide to build a fence in their field, to keep the sheep safe. Since Dr. Jones is a math

alex41 [277]

Answer: $\frac{8}{3}\times \sqrt{\frac{2}{5}}$

Step-by-step explanation:

Given two upward facing parabolas with equations

$y=6x^2 & y=x^2+2$

The two intersect at

$6x^2=x^2+2$

$5x^2=2$

$x^2$ = $\frac{2}{5}$

x= $\pm \sqrt{\frac{2}{5}}$

area enclosed by them is given by

A= $\int_{-\sqrt{\frac{2}{5}}}^{\sqrt{\frac{2}{5}}}\left [ \left ( x^2+2\right )-\left ( 6x^2\right ) \right ]dx$

A= $\int_{\sqrt{-\frac{2}{5}}}^{\sqrt{\frac{2}{5}}}\left ( 2-5x^2\right )dx$

A= $4\left [ \sqrt{\frac{2}{5}} \right ]-\frac{5}{3}\left [ \left ( \frac{2}{5}\right )^\frac{3}{2}-\left ( -\frac{2}{5}\right )^\frac{3}{2} \right ]$

A= $\frac{8}{3}\times \sqrt{\frac{2}{5}}$

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3 years ago