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pickupchik [31]
3 years ago
10

Please help me with this one too lol.

Mathematics
1 answer:
In-s [12.5K]3 years ago
5 0

Answer:

b

Step-by-step explanation:

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What is the value of r of the geometric series 1.3(0.8) n-1
OverLord2011 [107]

The answer is A.) 0.8!

4 0
3 years ago
Read 2 more answers
What are the alternate angle pairs in the picture below ?
polet [3.4K]

Given:

is the transversal that intersects the lines r and s.

Required:

Pairs of alternate exterior angles.

Explanation:

Line q intersects the lines r and s.

The alternate exterior angles are,

\angle2\text{ and }\angle8\text{ , }\angle1\text{ and }\angle7

Answer:

Thus the required answer is option 2.

5 0
1 year ago
Parabola
atroni [7]

9514 1404 393

Answer:

  • sin(θ) = (9√97)/97
  • cos(θ) = (-4√97)/97
  • csc(θ) = (√97)/9
  • sec(θ) = (-√97)/4
  • cot(θ) = -4/9

Step-by-step explanation:

The angle is in the 2nd quadrant, where the sine is positive and the cosine is negative.

tan^2(θ) +1 = sec^2(θ) = (-9/4)^2 +1 = 97/16   ⇒   sec = -(1/4)√97

cot(θ) = 1/tan(θ) = -4/9

csc^2(θ) = cot^2(θ) +1 = (-4/9)^2 +1 = 97/81   ⇒   csc = (1/9)√97

sin(θ) = 1/csc(θ) = (9√97)/97

cos(θ) = 1/sec(θ) = (-4√97)/97

3 0
3 years ago
Sparky the Bear is atop a 100 foot tower. He is looking out over a fairly level area for careless people who might start fires.
Bogdan [553]

The distance of sparky to the fire is 99.445 feet

<h3>Application of SOH CAH TOA identity</h3>

Given the following parameters

The angle of depression = 6  degrees

If Sparky is looking over the fairly level, hence the hypotenuse is 100 foot

Required

Distance from spark tower to the fire

Using the expression below

Cos 6 = D/100

D = 100cos6

D = 100(0.9945)
D = 99.45foot

Hence the distance of sparky to the fire is 99.445 feet

Learn more on SOH CAH TOA here: brainly.com/question/20734777

3 0
2 years ago
A baseball team had 75 players show up for tryouts last year and this year had 90 players show up for tryouts. Find the percent
BigorU [14]

Answer:

20%

Step-by-step explanation:

Subtract the original number from the new number: 90-75=15

The increase is 15

Now divide the increase by the original number: 15/75=.20

Then multiply your answer by 100: .20x100=20

5 0
3 years ago
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