All categories

3 years ago

Find the value of n -2(4 + 2n)= -20

Mathematics

1 answer:

Mamont248 [21]3 years ago

8 0

Answer:

n= -3

-2(4+2n) = - 20

-8+4n = -20

4n = -20+8

4n = -12

divide both sides by 4

You might be interested in

Which is grater and I don’t need any links please and thank you

andreev551 [17]

-4 is greater since its negative then what you would call a smaller number is always greater

3 0

3 years ago

Read 2 more answers

How do you solve this ? and what did you get?

ASHA 777 [7]

Using the distributive property in this case simple means performing the indicated multiplication...

-3n/4+3/8

6 0

3 years ago

Convert the rectangular coordinates (4√3,−4) to polar form. Let r>0 and 0≤θ<2π.

spayn [35]

Answer:

(8,150)

Step-by-step explanation:

Polar form is in,

(r,theta).

To find r, apply pythagorean theorem using both coordinates to find r.

$(4 \sqrt{3} ) {}^{2} + ( - 4 {}^{2} ) = {r}^{2}$

$48 + 16 = {r}^{2}$

$r = 8$

To find theta, since we know the opposite and adjacent side, apply the tangent function.

$\tan(x) = \frac{ - 4}{4 \sqrt{3} }$

Apply inverse tan function

$\tan {}^{ - 1} ( \frac{ - 4}{4 \sqrt{3} } ) = - 30$

Since the degrees have to be in between 0 and 360. Add 180 to -30.

$- 30 + 180 = 150$

So the answer is

(8,150).

3 0

3 years ago

5x³ +9x² -13x -2 describe the end behavior of each function

Elodia [21]

Answer: OWA OWA

Step-by-step explanation:

8 0

4 years ago

In 2003, a school population was 903. By 2007 the population had grown to 1311. How much did the population grow between the yea

blsea [12.9K]

Answer:

The average population growth per year is 102.

Step-by-step explanation:

From the given data, we can find the slope which will give us the average rate of change. Our points are:

$(2003, 903)\quad and \quad (2007, 1311)$

$\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}=\frac{1311-903}{2007-2003}\\\\m=102$

Best Regards!

8 0

3 years ago