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olchik [2.2K]
3 years ago
8

I really NEED help!

Mathematics
1 answer:
Gala2k [10]3 years ago
6 0

Answer:

This is long ill write up a short summary of the answer in 2 mins

Step-by-step explanation:

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Tanθ=<br><br> a. 1 - cot^2 θ<br> b. 1/cot θ<br> c. 1 + sec^2 θ
DIA [1.3K]

Answer:

tanθ =  \frac{sinθ}{cosθ} \\ =  \frac{1}{ \frac{cosθ}{sinθ} }  \\  =  \frac{1}{cotθ}

<u>b. 1/cot θ</u>

7 0
3 years ago
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Simplify.<br> (-9x^2+3x+5) - (8x^2-5x-6)+(-4x^2 – 2x-8)
leva [86]

Answer:

-21x^2+6x+3

Step-by-step explanation:

distributive property

6 0
3 years ago
Hello! Question.
Bumek [7]
If I’m analyzing the question correct, you would pay 912 in total
8 0
3 years ago
Round 0.311 to the nearest tenth
vodomira [7]
0.3 because it’s less than 5
5 0
3 years ago
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A savings account earns 5% simple interest per year. The principal is $1200. What is the balance after 4 years?
stiv31 [10]
The formula of the Simple Interest is:
I=PRT
P for Principle Amount     ($1200)
R for Rate                        (5%=\frac{5}{100} = 0.05)
T for Time in years          (4 years)
I = 1200 × 0.05 × 4
  = $240

Add the interest to the principle amount to check the balance
$1200 + $240 = $1440

7 0
3 years ago
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