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4 years ago

Write a compound inequality to represent all of the numbers between -4 and 6.

Mathematics

1 answer:

blondinia [14]4 years ago

4 0

-4 < 6
Negative number always less than positive number

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Help me pretty please

klio [65]

Answer:

SA=120 m^2

Step-by-step explanation:

SA=(9x5)+(3x4)+(9x4)+(9x3)

SA=120

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3 years ago

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Find the solution of these two equations. Y=1/5x-7 and y=-x-1

marusya05 [52]

Answer:For the first one it would be x=35

And the 2nd one would just be x=-1

Step-by-step explanation:

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3 years ago

Gravel is being dumped from a conveyor belt at a rate of 15 ft3/min, and its coarseness is such that it forms a pile in the shap

gayaneshka [121]

Answer:

0.13 ft/min

Step-by-step explanation:

We are given that

$\frac{dV}{dt}=15ft^3/min$

We have to find the increasing rate of change of height of pile when the pile is 12 ft high.

Let d be the diameter of pile

Height of pile=h

d=h

Radius of pile,r= $\frac{d}{2}=\frac{h}{2}$

Volume of pile= $\frac{1}{3}\pi r^2 h=\frac{1}{12}\pi h^3$

$\frac{dV}{dt}=\frac{1}{4}\pi h^2\frac{dh}{dt}$

h=12 ft

Substitute the values

$15=\frac{1}{4}\pi(12)^2\frac{dh}{dt}$

$\frac{dh}{dt}=\frac{15\times 4}{\pi(12)^2}$

$\frac{dh}{dt}=0.13ft/min$

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4 years ago

One sixth of forty-two is seven.<br> How do I write out the equation for that?

sertanlavr [38]

Answer:

Step-by-step explanation:

1/6 * 42 = 7

"of" means multiply

"is" means =

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3 years ago

Mrs. Garcia’s students were asked to find 220% of 75. Each of the students had a different method.

ludmilkaskok [199]

Answer:

Colton.

Step-by-step explanation:

Amy: 220% is basically $\frac{220}{100}$ which in decimal form, is 2.20.

Braden: 100% + 100% + 20% = 220%, so it is accurate.

Colton: 100% + 10% + 10% = 120%, not 220%.

Dainielle: 100% of 75 is 75. Dividing the 100% of 75 by 5 makes a 20%. Adding 100% of 75 twice makes 200%. 200% + 20% = 220%, so it is accurate.

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3 years ago

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