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Sergio039 [100]
3 years ago
5

Hello could you help me on this calculus

Mathematics
1 answer:
mart [117]3 years ago
7 0
Hello,

d f(x²-1)/dx=f'(x²-1)*2x
if x=2 then f'(2²-1)*2*2 =f'(3)*4=-4*4=-16

Answer A

If you need explains:

let's y=x²-1

df(x²-1)/dx=df(y)/dy*(dy/dx)=f'(x²-1)*2x
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Step-by-step explanation:

7 0
3 years ago
In Minnesota the twin cities average 12.1 inches of snow in January compared to 7.8 inches of snow in February. What is the abso
elena-s [515]

Answer:

The absolute change is found by taking the final value−initial value=absolute change.

7.8−12.1=−4.3

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Round to the nearest hundredth of a percent to get −35.54%.

7 0
3 years ago
An insurance company uses the formula T=3.5n + 5 to work out the cost, T pounds, for insuring a customer for n days. Work out th
artcher [175]

Answer:

Cost of travel insurance for 4 days = 19 pounds

Step-by-step explanation:

The insurance company uses the formula T = 3.5n + 5 to work out the cost , T pounds for  insuring the customer for n number of days . Where n is the number of days.

The algebraic equation given has two variables which are cost T of insuring and n which is the number of days for insuring. Mathematically,

T = cost of insuring in pounds

n = number of days

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8 0
3 years ago
The area of a rectangular portion of a national park is (48x^2+16x)square km. If the length is 8x km long, what is the width, in
nikitadnepr [17]
Area is equal to width times length: 
A = w*l
We know A <span>(48x^2+16x), l = 8x. Plugging into the equation:
</span><span>(48x^2+16x) = 8x * w             Divide both sides by 8x
6x + 2 = w 

The answer is width = (6x +2)km
</span>
6 0
3 years ago
Solve this for me pls. 0.78 ÷ 3=
Shalnov [3]

Hi! I believe your answer is 0.26. (0.78 ÷ 3 = 0.26). I hope this helps you! Good luck and have a great day/night. ❤️✨

6 0
3 years ago
Read 2 more answers
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