2 years ago

F(x) = x^2 - 16 What are the solutions for x when f of x equals 9?

Mathematics

1 answer:

andrey2020 [161]2 years ago

5 0

Answer:

Step-by-step explanation:

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If you toss 9 fair coins, in how many ways can you obtain at least one tail?

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3 years ago

kittens weigh about 100 grams when they are born and gain seven to 15 grams per day if a kitten weighed 100 grams at Birth and g

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3 years ago

Work out the angle of elevation from the

insens350 [35]

$\quad \huge \quad \quad \boxed{ \tt \:Answer }$

$\qquad \tt \rightarrow \:Angle \:\: of \:\: elevation= 30°$

____________________________________

$\large \tt Solution \: :$

Let the angle of elevation be " x "

$\qquad \tt \rightarrow \: \cos(x) = \dfrac{9 \sqrt{3} }{18}$

$\qquad \tt \rightarrow \: \cos(x) = \dfrac{ \sqrt{3} }{2}$

$\qquad \tt \rightarrow \: x = \cos {}^{ - 1} \bigg( \cfrac{ \sqrt{3} }{2} \bigg )$

$\qquad \tt \rightarrow \: x = 30 \degree \: \: or \: \: \cfrac{ \pi}{6} \: \: rad$

Answered by : ❝ AǫᴜᴀWɪᴢ ❞

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2 years ago

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Which algebraic expression represents the phrase “fourteen increased by a number”?

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Step-by-step explanation:

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According to the 2000 Census the population of Canton was 7,720. Holly Spring's population was 3,200. Canton's population increa

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Firstly, the rate of increase of Canton = 80/7720 = 0.010
The rate of increase of HP = 120/3200 = 0.0375
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7720x1.01^n = 3200x1.0375^n

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3 years ago

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