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Alecsey [184]
3 years ago
7

Please help and I'll give as many points possible.

Mathematics
1 answer:
sesenic [268]3 years ago
8 0
1. Very possibly the 2nd choice. All the others are rational. An irrational number has an infinite, non-repeating decimal portion.

2. √1/169 = (√1)/169 = 1/169. Perhaps you mean √(1/169).
\sqrt{\frac{1}{169}} = \frac{1}{13} . . . . corresponds to the 3rd choice

3. Square root both sides.
.. x = ±√98 ≈ 9.9, -9.9 . . . . . corresponds to the 3rd choice
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Convert 81° to radians.
SOVA2 [1]

Answer: 9π/20 radians  

How to: <u>Convert from degrees to radians using the ratio π/180 .</u>

Have a great day !

7 0
2 years ago
From his eye, which stands 1.59 meters above the ground, Francisco measures the
viva [34]

The height of the skyscraper to the nearest tenth is 234. 95 meters.

<h3>How to determine the height</h3>

From the information given, we have:

  • angle of elevation = 32°
  • length of the base, adjacent side = 376 meters
  • height of the skyscraper, opposite side = x meters

To determine the height of the elevator, let's use the tangent identity

We have that;

tan θ = opposite/ adjacent

The value of the opposite side is 'x' which is the height of the skyscraper and the value of the adjacent side is 376 meters which is the length of the base of the skyscraper

Now, substitute the values, we have;

tan 32 = x/ 376

cross multiply

x = tan 32 × 376

x = 0. 6249 × 376

x = 234. 95 meters

We know that the 'x' represents the opposite side and thus the height of the skyscraper

Thus, the height of the skyscraper to the nearest tenth is 234. 95 meters.

Learn more about angle of elevation here:

brainly.com/question/19594654

#SPJ1

7 0
2 years ago
I need help with this problem
rewona [7]
I believe the answer is A

6 0
3 years ago
Alex used a $10 discount coupon to buy a sweatshirt. After subtracting the discount, he paid less than $15 for the sweatshirt. W
ki77a [65]
X-10>15.........................................
3 0
3 years ago
You want to have $25,000 for a down payment on a house 6 years from now. if you can earn 6.5 percent, compounded annually, on yo
STatiana [176]
Use compound interest formula:
Future value, F 
25000=P(1+i)^n
where
P=present value to be found
i=annual interest rate = 0.065
n=number of years = 6
so
25000=P(1.065)^6
=>
P=(25000/1.065^6)=$17133.353
6 0
3 years ago
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