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tino4ka555 [31]
4 years ago
9

I don’t understand this

Mathematics
2 answers:
SashulF [63]4 years ago
7 0

Answer:

9 to the 5th power

Step-by-

krok68 [10]4 years ago
7 0

Answer:

n=5  I think...

Step-by-step explanation:

9^7/9^n = 9^2

Multiply by (n)

9^7-n = 9^2

7-n=2

7-n=2: n=5

-n=-5

Simplify:

n=5

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I bought 120g of candies for $1.65, how much would 70g cost, and how much could i buy for $3.80
VladimirAG [237]
70 g* ($1.65/ 120 g)= $0.96.

$3.80* (120 g/ $1.65)= 276.364 g.

70 g of candies would cost $0.96
With $3.80, we can buy 276.364 g of candies~
4 0
4 years ago
A number minus 8 then subtracted by 12. <br> What is the number?
gogolik [260]

Answer:

x=20

Step-by-step explanation:

Let the number be x

(x-8)-12=0

x-8-12=0

x-20=0

Add 20 to both sides

x=20

3 0
3 years ago
what are the coordinates of the vertex of the parabola described by the equation below ? y=-7(x-4)2-5
pshichka [43]

Answer:

Step-by-step explanation:

(-7x+28)2-5

Y= -14x+51

6 0
4 years ago
Read 2 more answers
A regular room at the Great Wolf Lodge is $229.99. You have a discount code to get 20% off of the room rate. The sales tax on th
vovangra [49]
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6 0
4 years ago
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What is the area of the sector? Either enter an exact answer in terms of \piπpi or use 3.143.143, point, 14 for \piπpi and enter
n200080 [17]

Question:

What is the area of the sector? Either enter an exact answer in terms of π or use 3.14 and enter your answer as a decimal rounded to the nearest hundredth.

Answer:

See Explanation

Step-by-step explanation:

The question is incomplete as the values of radius and central angle are not given.

However, I'll answer the question using the attached figure.

From the attached figure, the radius is 3 unit and the central angle is 120 degrees

The area of a sector is calculated as thus;

Area = \frac{\alpha }{360} * \pi r^2

Where \alpha represents the central angle and r represents the radius

By substituting \alpha = 120 and r = 3

Area = \frac{\alpha }{360} * \pi r^2 becomes

Area = \frac{120}{360} * \pi * 3^2

Area = \frac{1}{3} * \pi * 9

Area = \pi * 3

Area = 3\pi square units

Solving further to leave answer as a decimal; we have to substitute 3.14 for \pi

So, Area = 3\pi becomes

Area = 3 * 3.14

Area = 9.42 square units

Hence, the area of the sector in the attached figure is 3\pi or 9.42 square units

8 0
3 years ago
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