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Harlamova29_29 [7]
3 years ago
8

Simplify cos2x tan2(-x)-1 / cos2x

Mathematics
1 answer:
PtichkaEL [24]3 years ago
6 0
-x sec(2) sin (2)cos(2x)-sec(2x)
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An article bought a television for 2500 dollars and sold for 2325dollars find a.loss b.loss%​
SpyIntel [72]

Answer:

Loss= $175

Loss %= 7%

Step-by-step explanation:

First of all, you find the difference between 2500 and 2325 which is 175, as his has decreased, it is a loss of $175

To find the percentage you do the difference over the original amount

So 175/2500 which will give you 0.07

0.07 x 100 will give you 7%

5 0
3 years ago
Identify the value of c in the following quadratic function f (x) = -2x^2+ 3x – 4
Hitman42 [59]

Answer:

-4

Step-by-step explanation:

Given function

f(x) = -2x² + 3x - 4

Comparing with ax² + bx + c We get

c = - 4

Hope it will help :)❤

5 0
3 years ago
Read 2 more answers
Use the substitution method to solve the system of equations. Choose the correct ordered pair.
balandron [24]
Here you have 2 linear equations and are to solve this system.  Both equations have already been solved for y, so you can set one of them = to the other one:

-2x+11 = -3x+21.

Then 3x-2x = 21 - 11, or         x = 10 (answer)

Find y by subst. x = 10 into either of the given equations.

Solution is then (10, ? )
7 0
4 years ago
-18xy3 (9xy – 2y4 + 10x)
satela [25.4K]
The Answer Is -54xy(9xy-2y^4+10x)
7 0
4 years ago
John and Loretta Smith are in the 28% tax bracket. Their joint taxable income is $134,899. If the first $16,050 is taxed at 10%,
alexgriva [62]
0.10×16,050+0.28×(134,899−16,050) =34,882.72
6 0
3 years ago
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