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kiruha [24]
2 years ago
11

Cosx-1/sinx= sinx-tanx/sinxtanx Verify the identity

Mathematics
1 answer:
Nimfa-mama [501]2 years ago
8 0

Answer: Cosx/(1+sinx + 1+sinx)/cosx = 2secx

Step-by-step explanation:

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The function y = f(x) is graphed below. What is the average rate of change of the
Serjik [45]

The average rate of change of the function in the given interval -3 ≤ x ≤-1 is 10.

<h3>What is the average rate of change?</h3>

The average Rate of Change of the function f(x) can be calculated as;

f(x) = \dfrac{f(b) - f(a)}{b-a}

Interval -3 ≤ x ≤-1

a = -3, b = -1

f(a) = f(-3) = -20

f(b) = f(-1) = 0

Step 2: Find Average

f(x) = \dfrac{f(b) - f(a)}{b-a}\\\\\\f(x) = \dfrac{f(-1) - f(-3)}{-1-(-3)}\\\\\\f(x) = \dfrac{0 - (-20)}{2}\\\\f(x) = 10

Therefore, the average rate of change of the function in the given interval -3 ≤ x ≤-1 is 10.

Learn more about average rate;

brainly.com/question/20784578

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3 0
1 year ago
9000 for 5 years at 4.5% compounded monthly
tatuchka [14]
I think its 9000(1.045)^5. Hope this helps. That equals $11,215.60, or rounded to the nearest dollar, $11,215.
7 0
2 years ago
A CD usually sells for $17.00. If the CD is 30% off, and sales tax is 8%, what is the total price of the CD, including tax?
Mademuasel [1]

Answer:

First find what the sale price of the CD is. 30% off means the CD is selling for 70% of the original cost ( 100%-30% = 70%)


Multiply the original cost by 70%:

17.00 x 0.70 = $11.90 ( sale price)

Now you need to multiply the sale price by the tax percentage to find the amount of tax:

11.90 x 0.08 = 0.95 ( tax)


Now add the sale price and the tax for the total cost:

11.90 + 0.95 = $12.85


6 0
2 years ago
Determine if each statement is always, sometimes, or never true.
Allushta [10]
1.always
2.always
3.never
5 0
3 years ago
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Simplify 7 -(-4) + 3(-6).<br> 0-7<br> 07<br> -9<br> 9
Contact [7]
It’s -7
7-(-4) is 7+4, which is 11
3 times -6 is -18
11 + -18 is -7
6 0
3 years ago
Read 2 more answers
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