3 years ago

Please help

Mathematics

1 answer:

serg [7]3 years ago

8 0

Answer:

The total cost depends on the weight of the pacakge

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Can someone help me with this algebra question? I don’t get it :( and I’m not tryna fail

ArbitrLikvidat [17]

Answer:

Step-by-step explanation:

if f(x)=3x-1 and g(x)=2x+5 then

f(x)-g(x)=3x-1-(2x+5)

f(x)-g(x)=3x-1-2x-5

f(x)-g(x)=x-6

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2 years ago

What is the x-intercepts of the function f(x)=-2x2-3x+20

Dmitry [639]

Hey,
The x-intercepts are the coordinates where the line intercepts the x-axis.

x-intercepts: $( \frac{16}{3}, 0)$

Cheers,
Izzy

5 0

3 years ago

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PLEASE SHOW WORK

CaHeK987 [17]

(C)

Step-by-step explanation:

The volume of the conical pile is given by

$V = \dfrac{\pi}{3}r^2h$

Taking the derivative of V with respect to time, we get

$\dfrac{dV}{dt} = \dfrac{\pi}{3}\dfrac{d}{dt}(r^2h)$

$\:\:\:\:\:\:\:= \dfrac{\pi}{3}\left(2rh\dfrac{dr}{dt} + r^2\dfrac{dh}{dt}\right)$

Since r is always equal to h, we can set

$\dfrac{dr}{dt} = \dfrac{dh}{dt}$

so that our expression for dV/dt becomes

$\dfrac{dV}{dt} = \dfrac{\pi}{3}\left(3r^2\dfrac{dh}{dt}\right)$

$\:\:\:\:\:\:\:= \pi r^2\dfrac{dh}{dt}$

Solving for dh/dt, we get

$\dfrac{dh}{dt} = \dfrac{1}{\pi r^2}\dfrac{dV}{dt}$

$\:\:\:\:\:\:\:= \dfrac{1}{9\pi\:\text{m}^2}(36\:\text{m}^3\text{/s})$

$\:\:\:\:\:\:\:= \dfrac{4}{\pi}\:\text{m/s}$

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3 years ago

Janice lost a total of 24 points on her math test. Each question she answered incorrectly was a loss of 3 points. How many quest

NARA [144]

Answer:

let

tp=total points lost

l= points lost

q= question

tp=24

l= 3

if l= 3 and tp= 24 den q= tp÷l

24÷3=8

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3 years ago

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Mr. Jacob is 55 years old and tony is 7 years old. in how many years will mr. Jacobs be 4 times as old as Tony

torisob [31]

9 more years
Tony will be 16
Mr Jacob will be 64
16x4=64

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3 years ago

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