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Vesna [10]
3 years ago
13

A system of inequalities can have no solution? a)true b)false

Mathematics
1 answer:
saul85 [17]3 years ago
6 0

Answer:

True

Step-by-step explanation:

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Simplify the expression by using a double-angle formula or a half-angle formula. (a) cos2 θ 2 − sin2 θ 2
SCORPION-xisa [38]
If this is supposed to be
cos^{2}θ-sin^{2}θ
Then this can simply be reduced to
cos2θ
by the double angle formula for cosine



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4 years ago
Whats the area of this?
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3 years ago
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CaHeK987 [17]
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2 years ago
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Find the average rate of change for f(x) = x2 + 9x + 18 from x = −10 to x = 10. A) 3 B) 7 C) 9 D) 11
Sergeeva-Olga [200]

Answer:

C

Step-by-step explanation:

The average rate of change of f(x) in the closed interval [ a, b ] is

\frac{f(b)-f(a)}{b-a}

Here [ a, b ] = [ - 10, 10 ], thus

f(b) = f(10) = 10² + 9(10) + 18 = 100 + 90 + 18 = 208

f(a) = f(- 10) = (- 10)² + 9(- 10) + 18 = 100 - 90 + 18 = 28, thus

average rate of change = \frac{208-28}{10-(-10)} = \frac{180}{20} = 9

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4 years ago
What is the value of x^2 divided by y^4 when x=8 and y=2
7nadin3 [17]

Answer:

4

Step-by-step explanation:

64/16=4

7 0
3 years ago
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