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2 years ago

PLEASE HELP!!! ANSWER ALL 4

Mathematics

2 answers:

suter [353]2 years ago

6 0

The guy/girl above me is right

wlad13 [49]2 years ago

4 0

Answer:

1 and 8 are alternate exterior

8 and 5 are corresponding

3 and 2 are vertical

6 and 3 are alternate interior

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This is converting to polar form, I need help and the answer too.

Mila [183]

Answer:

2 cis (7/6 pi)

Step-by-step explanation:

r = sqrt( a^2 + b^2)

r = sqrt (-sqrt(3) )^2 + (-1)^2)

= sqrt(3 +1)

= sqrt(4)

= 2

theta = arctan (b/a)

theta = arctan (-1/-sqrt(3))

theta = 30

but this is in the third quardrant -a and -b

so add 180

theta = 210 degrees

convert this to radians

210 * pi/180 = 210/180 * pi = 21/18 * pi = 7/6 * pi

r cis (theta)

2 cis (7/6 pi)

7 0

3 years ago

Find x step by step (10 points)

AleksandrR [38]

Answer:

$\sqrt{(n-m)(n+m)}$ & $-\sqrt{(n-m)(n+m)}$

Step-by-step explanation:

1) Subtract $m^{2}$ from both sides. This should leave you with $x^{2}=n^{2}-m^{2}$ .

2) Square root both sides. This should leave you with $x=\sqrt{n^2-m^2}$ & $x=-\sqrt{n^2-m^2}$ .

You can stop here if this is what the problem is asking for. However, it is not fully simplified.

3) Factor the equation. This should leave you with $\sqrt{(n-m)(n+m)}$ & $-\sqrt{(n-m)(n+m)}$ .

4 0

3 years ago

Read 2 more answers

Find the constant of variation for the relation and use it to write an equation for the statement. Then solve the equation

Olenka [21]

Answer:

y = $\frac{49}{3}$

Step-by-step explanation:

Given that y varies directly as x then the equation relating them is

y = kx ← k is the constant of variation

To find k use the condition y = 7 when x = 3

k = $\frac{y}{x}$ = $\frac{7}{3}$ , thus

y = $\frac{7}{3}$ x ← equation of variation

When x = 7, then

y = $\frac{7}{3}$ × 7 = $\frac{49}{3}$

8 0

3 years ago

What is 20x30 i need the answer nowwwwwwwwwwwwww

cestrela7 [59]

Answer: 600

Step-by-step explanation:

20 x 30

= 2 x 10 x 3 x 10

= 2 x 3 x 10 x 10

= 6 x 100

= 600

6 0

3 years ago

What is the volume of the cylinder below?

MrRissso [65]

I think it would be 175

4 0

3 years ago