Help me please???????

Mathematics

1 answer:

SVEN [57.7K]3 years ago

7 0

Answer:

Step-by-step explanation:

its c because I'm a scholar B)

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mihalych1998 [28]

Answer:

It has to be 145 degrees.

Step-by-step explanation:

There would be 2 60's and one 95. 360-95-(60*2)=145.

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3 years ago

Let g(x) = x² - 3 and h(x) = 2x + 5. Find g(h(x)).

Arisa [49]

Answer: $4x^2+20x+22\\\\$

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Work Shown:

$g(x) = x^2 - 3\\\\g(h(x)) = (h(x))^2 - 3\\\\g(h(x)) = (2x+5)^2 - 3\\\\g(h(x)) = (2x+5)(2x+5) - 3\\\\g(h(x)) = 4x^2+10x+10x+25 - 3\\\\g(h(x)) = 4x^2+20x+25 - 3\\\\g(h(x)) = 4x^2+20x+22\\\\$

Explanation: I replaced every x with h(x) in step 2. In step 3, I replaced h(x) with 2x+5 just on the right hand side only. From there, expand and simplify.

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3 years ago

Ying is a professional deep water free diver. His altitude (in meters relative to sea level), xxx seconds after diving, is model

Wewaii [24]

Answer:

60 seconds

Step-by-step explanation:

$D(x) = \dfrac{1}{36}(x-60)^2-100$