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3 years ago

5

What is the percentage increase for a population that is changed from 438000 561000

1 answer:

tatiyna3 years ago

3 0

Answer:

abillion

Step-by-step explanation:

nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnm

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Please help me thank you

Anna11 [10]

Answer:

$\large\boxed{-\dfrac{8}{\sqrt{63}}}$

Step-by-step explanation:

$\csc\theta=\dfrac{1}{\sin\theta}\\\\\cos\theta=-\dfrac{1}{8}\qquad\text{use}\ \sin^2\theta+\cos^2\theta=1\\\\\sin^2\theta+\left(-\dfrac{1}{8}\right)^2=1\\\\\sin^2\theta+\dfrac{1}{64}=1\qquad\text{subtract}\ \dfrac{1}{64}\ \text{from both sides}\\\\\sin^2\theta=\dfrac{64}{64}-\dfrac{1}{64}\\\\\sin^2\theta=\dfrac{63}{64}\to\sin\theta=\pm\sqrt{\dfrac{63}{64}}\\\\180^o$

$\csc\theta=\dfrac{1}{-\frac{\sqrt{63}}{8}}=-\dfrac{8}{\sqrt{63}}$

5 0

3 years ago

Oscar runs 13 miles each week. If he has run 195 miles

Rus_ich [418]

Answer:

15

Step-by-step explanation:

195/13=15

7 0

3 years ago

Factor completely 64x2– 49

Lady_Fox [76]

The theorem is: a^2 - b^2 = (a+b) (a-b)
So, let's do this:

64x^2 - 49=
(8x)^2 - (7)^2=
(8x+7) (8x-7)

5 0

3 years ago

Read 2 more answers

Select two ratios that are equivalent to 27:927:927, colon, 9. Choose 2 answers: Choose 2 answers: (Choice A) A 3:13:13, colon,

Troyanec [42]

Answer:

A. $Ratio = 3:1$

B. $Ratio= 9:3$

Step-by-step explanation:

Given

$Ratio= 27:9$

Required

Determine equivalent ratios:

$Ratio= 27:9$

First, we simplify the ratio to the least possible

$Ratio = 27/9:9/9$

$Ratio = 3:1$

By comparison with the given options, we have A and B as answer.

See Proof Below

Proof: A

Compare this to the simplified ratio (given), we have:

$Ratio = 3:1$ = $Ratio = 3:1$

Proof B

$Ratio= 9:3$

Simplify the ratio to the least possible

$Ratio= 9/3:3/3$

$Ratio= 3:1$

Compare this to the simplified ratio (given), we have:

$Ratio = 3:1$ = $Ratio = 3:1$

7 0

4 years ago

The system, 6x - 4y = 5 and 9x - 6y = 5, is consistent.<br> True of False

enyata [817]

False, I'm pretty sure

8 0

3 years ago

Read 2 more answers