3 years ago

Can anyone help me please? I forget how to do this I need the answer quick

Mathematics

1 answer:

vladimir1956 [14]3 years ago

3 0

Answer:

Domain is R ( all real numbers)

Range is R (all real numbers)

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You can see that Y is obviously bigger than X

Step-by-step explanation:

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4 years ago

The volume of a cone is 1540cm³. If its radius is 7cm, calculate the height of the cone. (Take pi = 22/7)

Ann [662]

Answer:

$h=30$

Step-by-step explanation:

Volume of a cone=1540 $cm^{3}$ , Radius=7cm.

The height of a cone=h

When we need to find the height of a cone, we can use the formula of the volume of a cone, which is $\frac{1}{3} \pi r^{2} h$ to find the height of a cone.

$1540cm^{3} =\frac{1}{3}\pi r^{2} h$

Put the pi value=22/7 and the value of radius which is 7 cm into the formula.

$1540cm^{3}=\frac{1}{3}*\frac{22}{7} 7^{2}h$

$1540cm^{3} =\frac{154}{3}h$

Move $\frac{154}{3}$ to another side. 1540 divided by $\frac{154}{3}$ to calculate what is the value of h, h is the height of a cone. Like this.

$\frac{1540cm^{3} }{\frac{154}{3} } =h$

$30=h$

Rearrange the h.

$h=30$

I hope you will understand my solution and explanation. If you still cannot get the point, you can ask me anytime! Thank you!

4 0

3 years ago

Read 2 more answers

If 2x − 4(x + 1) = −12, evaluate x2 − 1.

Vlad [161]

2x-4(x+1)=-13
1) we solve this equation:
2x-4(x+1)=-12
2x-4x-4=-12
-2x=-12+4
-2x=-8
x=-8/-2
x=4

2) we evalute x²-1
x²-1=4²-1=16-1=15

Answer: 15

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3 years ago

By what expression can we multiply 2xt^3 to get 32x^3 t^8 PLEASE HELP

Salsk061 [2.6K]

Answer:

16x^2 t^5

Step-by-step explanation:

2 * 16 = 32

x * x^2 = x^3

t^3 * t^5 = t^8

2x t^3 * 16x^2 t^5 = 32x^3 t^8

3 0

3 years ago