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3 years ago

A submarine is situated 400 feet below sea level. If it drops another 250 feet below sea level, what is the new position?

Mathematics

1 answer:

natka813 [3]3 years ago

8 0

Answer:

-650ft

Step-by-step explanation:

I took a test with a question like that

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For f(x) = 4x +1 and g(x) = x2 - 5, find (g/f) (x).

Softa [21]

Answer:

$\left(g/f\right)\left(x\right)=\frac{x}{4}-\frac{1}{16}-\frac{79}{16\left(4x+1\right)}$

Step-by-step explanation:

$f(x)=4x+1$

$g\left(x\right)=x^2\:-\:5$

(g/f)(x) = g(x) / f(x)

$=\:\frac{x^2\:-\:5}{4x+1}\:\:\:\:\:\:$

$=\frac{x}{4}+\frac{-\frac{x}{4}-5}{4x+1}$

$=\frac{x}{4}-\frac{1}{16}+\frac{-\frac{79}{16}}{4x+1}$

$=\frac{x}{4}-\frac{1}{16}-\frac{79}{16\left(4x+1\right)}$

Therefore,

$\left(g/f\right)\left(x\right)=\frac{x}{4}-\frac{1}{16}-\frac{79}{16\left(4x+1\right)}$

8 0

3 years ago

MAX POINTS!!!! Please help me solve the problem in the picture and tell me what I’m doing also explain each step.

lapo4ka [179]

Answer: j=0.4

-j+0.8=-0.9j+0.76

-j+0.8+0.9j=-0.9+0.76+0.9j

-0.1j+0.8=0.76

-0.1+0.8-0.8=0.76-0.8

-0.1j=-0.04

-0.1j/-0.1=-0.04/-0.1

j=0.4

Ya have a good day.

5 0

2 years ago

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HELPPPPPPPP will give the brainliest pls help

baherus [9]

Answer:

Step-by-step explanation:

i guessed

8 0

3 years ago

H(x)= 2x+1, Find h(3)

zvonat [6]

H of three is 7 Bc you just plug it in

8 0

3 years ago

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OPEN ENDED QUESTION

posledela

Answer: I hope this helps :)

Substitution: 45+15(6-1)

Simplify: 120

Step-by-step explanation:

Calculate within parenthases (6-1) =5 =45+15(5)

Multiply left to right 15(5)=75 =45+75

Add leftg to right 45+75=120

Answer = 120

4 0

3 years ago