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Viefleur [7K]
2 years ago
14

What is 3n² = 243 I NEED THIS ANSWER QUICKLY!!!!

Mathematics
1 answer:
viva [34]2 years ago
8 0

Answer:

n=9

Step-by-step explanation:

You use reverse PEMDAS.

First you would divide by 3 on both sides. This should give you:

n²=81

Then you would find \sqrt{81}. Which is 9.

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EXPLANATION?????
crimeas [40]

Answer:

Hello! answer: x = 19

Step-by-step explanation:

This is a supplementary angle! So it will add up to 180 degrees 180 - 123 = 57 so we know something multiplied by 3 will equal 57 and 19 × 3 = 57 so x = 19 Hope this is a good explanation!

4 0
2 years ago
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Compare 3 + (–4) to (–4) + 3. What happens to the sum when the addends are reversed?
slamgirl [31]
The sum stays the same??? I’m pretty sure that’s the answer
6 0
3 years ago
Write the standard equation for the circle center (-6,8) that passes through (0,0)
Reil [10]

Answer:

D

Step-by-step explanation:

The equation of a circle in standard form is

(x - h)² + (y - k)² = r²

where (h, k) are the coordinates of the centre and r is the radius

here (h, k) = (- 6, - 8), thus

(x + 6)² + (y + 8)² = r²

The radius is the distance from the centre to a point on the circle

Calculate r using the distance formula

r = √ (x₂ - x₁ )² + (y₂ - y₁ )²

with (x₁, y₁ ) = (- 6, - 8) and (x₂, y₂ ) = (0, 0)

r = \sqrt{(0+6)^2+(0+8)^2} = \sqrt{36+64} = \sqrt{100} = 10

Hence

(x + 6)² + (y + 8)² = 100 → D

4 0
3 years ago
Please help me with this question.
g100num [7]

Answer:

44580 inches

Step-by-step explanation:

Given, D (diameter)= 22 inches

Therefore, r (radius)= 22/2= 11 inches

Volume= \frac{4}{3}×π×r³

            =\frac{4}{3}×3.14×22×22×22

            =44579.626 inches

            =44580 inches

3 0
2 years ago
Total cost is $14 plus 10% tip
castortr0y [4]

Answer:

the tip will be 1.40 which will make your bill total 15.40 hope this helps

Step-by-step explanation:

6 0
2 years ago
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