3 years ago

Determine whether quantities vary directly or inversely and find the constant of variation.

Mathematics

1 answer:

gtnhenbr [62]3 years ago

6 0

Answer:

8.75

Step-by-step explanation:

35/4=8.75

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Which expression is equivalent to (8x – 20) + (-4x + 12)?

lana66690 [7]

Answer:

B. 4x-8

Step-by-step explanation:

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2 years ago

What is the volume of this cylinder?

tatiyna

Answer:

The volume of the cylinder is 792

Step-by-step explanation:

3.14*6^2*7= 791.68 then when you round it up to the nearest whole number it's 792

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2 years ago

WILL GIVE U BRAINLIEST ♡ Rationalize the denominator of fraction with numerator square root of -36 divided by (2-3i)+(3+2i)

Dmitriy789 [7]

Answer:

$- \frac{3}{13} + \frac{15i}{13}$

Step-by-step explanation:

$\frac{ \sqrt{ - 36} }{(2 - 3i) + (3 + 2i)}$

Set up equation

Step 1: Simplify

$\frac{6i}{5 - i}$

Step 2:Multiply by conjugate

$\frac{6i}{5 - i} \times \frac{5 + i}{5 + i}$

Step 3:Simplify

$\frac{30i + 6 {i}^{2} }{ {i}^{2} - 5 {}^{2} }$

We can reduce this and we must make the imaginary number and real number serpate equations.

$- \frac{6}{26} + \frac{30i}{26}$

Reduce each by 2

$- \frac{3}{13} + \frac{15i}{13}$

7 0

2 years ago

A mixture of 2 chemicals measures 1,034 milliliters. it contains some of chemical A and 755 milliliters of chemical B. how much

Stella [2.4K]

-476
1034 - 755 = 279
279 - 755 = -476

4 0

3 years ago

Raina runs 3 miles in 28 minutes. At the same rate how many miles would she went and 42 minutes

Lorico [155]

Answer:

4.5miles

Step-by-step explanation:

divide 28 by 3 to get 9.333 minutes each mile

then divide 42 by 9.333 to get 4.50 miles

8 0

3 years ago