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3 years ago

Adding and subtracting functions f (n ) = −2n^3 + 3n^2g(n) = −2n − 4 Find f (n )+ g(n)

Mathematics

2 answers:

dezoksy [38]3 years ago

5 0

Answer: f(n) + g(n) = -2n^3 + 3n^2 - 2n - 4

Step-by-step explanation:

Honestly i dont know if that answer is correct

im just trying to gain points

but i copied it from someone else

2n +5y=6 eggs

Serhud [2]3 years ago

3 0

Answer: f(n) + g(n) = -2n^3 + 3n^2 - 2n - 4

Explanation:

f(n) + g(n) = (-2n^3 + 3n^2) + (-2n - 4)
f(n) + g(n) = -2n^3 + 3n^2 - 2n - 4

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Inga [223]

Answer:

Basketball + Sports Drink

$7.50 + $2.75 = $10.25

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30 - 23.25 = <u>6.75</u>

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3 years ago

A philanthropic organization helped a town in Africa dig several wells to gain access to clean water. Before the wells were in p

Romashka [77]

Answer: -1.5

Step-by-step explanation:

When population standard deviation is known, then the formula to find the z-test statistic for population mean is given by :-

$z=\dfrac{\overline{x}-\mu}{\dfrac{\sigma}{\sqrt{n}}}$

, where n= Sample size.

$\mu$ = Population mean

$\overline{x}$ = Sample mean

$\sigma$ = Population standard deviation.

As per given , we have $\mu=120$ (average infants contracted typhoid each month)

$\sigma=40$

n= 4 (No. of months)

$\overline{x}=90$

Then , the value of the appropriate test statistic will be :

$z=\dfrac{90-120}{\dfrac{40}{\sqrt{4}}}$

$z=\dfrac{-30}{\dfrac{40}{2}}$

$z=\dfrac{-30}{20}$

$z=-1.5$

Hence, the value of the test statistic = -1.5

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3 years ago

Help ASAP please! ill mark brainliest

kotegsom [21]

Answer:

Step-by-step explanation:

i think it is 2

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3 years ago

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If a car goes around a turn too quickly, it can leave tracks that form an arc of a circle. By finding the radius of the circle,

Sveta_85 [38]

I just encountered this question. Here's my answer.

Given:
Segment AC = 130 feet
Segment CD = 70 feet

I think that I'll be using the Pythagorean Theorem in finding the value of r. r will be the hypotenuse

Segment CE = (r - 70 feet)

r² = a² + b²
r² = 130² + (r-70)²
r² = 16,900 + (r-70)(r-70)
r² = 16,900 + r² - 70r - 70r + 4900
r² - r² + 140r = 16,900 + 4,900
140r = 21,800
r = 21,800/140
r = 155.71 feet

<span>The radius of the circle is 155.71 feet.</span>

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3 years ago

A golden eagle flies this is of 290 miles in five days if the eagle flies the same this is a state of his journey how far does t

natka813 [3]

So, I don’t speak English, but I’m trying
290:5=
290/1 *1/5= 290/5= 58

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3 years ago

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Adding and subtracting functions f (n ) = −2n^3 + 3n^2g(n) = −2n − 4 Find f (n )+ g(n)​

Adding and subtracting functions f (n ) = −2n^3 + 3n^2g(n) = −2n − 4 Find f (n )+ g(n)