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labwork [276]
3 years ago
8

Solve this equation 2cos^2x-9cosx-5=0

Mathematics
1 answer:
Nesterboy [21]3 years ago
6 0
2 (n π - i tanh^(-1)(sqrt(2/3))) should be the answer
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The area (in square inches) of a rectangle is given by the polynomial function A(p) = p2 + 9p + 20. If the length of the rectang
boyakko [2]

Answer:

Width = p + 4

Step-by-step explanation:

Given

Area = p^2 + 9p + 20

Length = p + 5

Required

Determine the width

The area of a rectangle is:

Area = Length * Width

This gives:

p^2 + 9p + 20= (p+5)* Width

Expand

p^2 + 4p + 5p + 20= (p+5)* Width

Factorize

p(p + 4) + 5(p + 4)= (p+5)* Width

(p + 5) (p + 4)= (p+5)* Width

Divide both sides by p + 5

p + 4= Width

Width = p + 4

7 0
3 years ago
Ms. jones is 50bls over weight. she decided to follow a diet to lose 50% of her excess weight by the first month, 20% by the end
sladkih [1.3K]

Answer:

5%

Step-by-step explanation:

You sum the lost excess weight: 50% + 20% + 25% = 95%. Meaning that she lost 95% of the excess weight. It remained just 5% to lose.

8 0
3 years ago
Does 4x-28=2x-6 have distributive property
shutvik [7]
No because there are no parentheses, therefore no distributive property
7 0
4 years ago
Which value of x makes the open sentence true? 10 +m2x< 15x-20? 0, 1, 2,3
Zielflug [23.3K]

x=3 if the m was a typo, idk what that means

3 0
3 years ago
99 X 99 X 99 / 9 - 99 /99 PLEASE EXPLAIN ;)
charle [14.2K]

Answer:

107810

Step-by-step explanation:

You can use the order of operations! So we start with 99^3/9. That is 99^2*11. So now let’s do 99/99, it’s 1. So 99^2*11 is 107811, so the answer is 107810.

8 0
4 years ago
Read 2 more answers
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