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gladu [14]
3 years ago
6

Which of the following is a correct interpretation of the expression -3 - 5−3−5minus, 3, minus, 5?

Mathematics
1 answer:
mariarad [96]3 years ago
7 0

Answer:

-24

Step-by-step explanation:

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360° - 45° - 100° = 215°, and ∡C and ∡A split that evenly, so ∡C = 107.5°.

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How do you do these questions?
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Answer:

(e) csc x − cot x − ln(1 + cos x) + C

(c) 0

Step-by-step explanation:

(e) ∫ (1 + sin x) / (1 + cos x) dx

Split the integral.

∫ 1 / (1 + cos x) dx + ∫ sin x / (1 + cos x) dx

Multiply top and bottom of first integral by the conjugate, 1 − cos x.

∫ (1 − cos x) / (1 − cos²x) dx + ∫ sin x / (1 + cos x) dx

Pythagorean identity.

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Divide.

∫ (csc²x − cot x csc x) dx + ∫ sin x / (1 + cos x) dx

Integrate.

csc x − cot x − ln(1 + cos x) + C

(c) ∫₋₇⁷ erf(x) dx

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The error function is odd (erf(-x) = -erf(x)), so:

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7 0
3 years ago
Which of these is the area of a sector of a circle with r = 18”, given that its arc length is 6π?
Igoryamba
22/7*18^2*6π/2π*18 = 169.65
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3 years ago
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Step-by-step explanation:

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2 years ago
Connie has saved up $15 to purchase a new CD from the local store. The sales tax in her county is 5% of the sticker price. Write
bonufazy [111]
X + 0.05x = 15
1.05x = 15
x = 15 / 1.05
x = 14.29 <==
3 0
3 years ago
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