3 years ago

Need help with this

Mathematics

1 answer:

blagie [28]3 years ago

3 0

Answer:

$-5x^2-26$

Step-by-step explanation:

$(f\:o\:g)=f(g(x))\\\\f(g(x))=-5(x^2-5)-1\\\\=-5x^2-25-1\\\\=-5x^2-26$

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If sin θ = 2 over 7 and tan θ > 0, what is the value of cos θ?

sergey [27]

Sin θ = 2 / 7
tan θ > 0
cos θ = ?

sin θ = opposite / hypotenuse
tan θ = opposite / adjacent
cos θ = adjacent / hypotenuse

short leg = opposite = 2
hypotenuse = 7
long leg = adjacent = ?

adjacent = √(7² - 2²)
adjacent = √(49 - 4)
adjacent = √45
adjacent = √9 * 5
adjacent = 3 √5

cos θ = adjacent / hypotenuse
cos θ = 3√5 / 7

6 0

3 years ago

Write 600 as the product of prime factors.<br>Give your answer in index form.<br>

MAXImum [283]

Answer:

2^3 x 3 x 5^2

Step-by-step explanation:

600/2

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