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3 years ago

HELP ME I NEED SOMEONE TO SHOW WORK AND AWNSER QUESTION ITS TIMED PLEASE HURRY 60 POINTS FOR IT!

Mathematics

1 answer:

Shkiper50 [21]3 years ago

5 0

Answer:

Hope this helps, thank you !!

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Form an identity using -5x+9=9_

koban [17]

Answer:

-5x+9=9

-5x+9-9=9-9

-5x=0

x= 0/5

x= 0

Step-by-step explanation:

7 0

4 years ago

How do I do #11? (Each part of it)

monitta

I hope this helps you

7 0

3 years ago

A cylinder and a cone have the same volume. The cylinder has a radius of 2 inches and a hieght of 3 inches. The cone has a radiu

arlik [135]

The height of the cone is inches, if the cylinder and cone have the same volume.The cylinder has a radius of 2 inches and a height of 3 inches. The cone has a radius of 3 inches.

Step-by-step explanation:

The given is,

A cylinder and a cone have the same volume

Cylinder has a radius 2 inches and height of 3 inches.

Cone has a radius of 3 inches

Step:1

For Cylinder'

Formula to calculate the volume of cylinder is,

$V = \pi r^{2} h$ ..................................................(1)

where,

r - 2 inches

h - 3 inches

From the equation (1)

= $\pi$ × $2^{2}$ × 3

= 37.70

V = 37.70 cubic inches

Step:2

For cone,

Formula to calculate the volume of cone is,

$V = \pi r^{2} \frac{h}{3}$ ..................................................(2)

From the statement,

cylinder and a cone have the same volume

$V_{cylinder}$ = $V_{cone}$

37.70 = $\pi$ × $3^{2}$ × $\frac{h}{3}$

37.70 = 9.42478 × h

Height of the cone, h = 4 inches

Result:

Thus the height of the cone is 4 inches, if a cylinder and cone have the same volume.The cylinder has a radius of 2 inches and a height of 3 inches. The cone has a radius of 3 inches.

4 0

3 years ago

Which model represents the expression

NARA [144]

Answer:

Step-by-step explanation:

Because you add a denominator of 1 to the whole number and just multiply over and you get 6/8

6 0

3 years ago

The side of the base of a square prism is decreasing at a rate of 7 kilometers per minute and the height of the prism is increas

Ber [7]

Answer:

dV = - 5.73*10⁹ m³/s

Step-by-step explanation:

Question: What is the rate of change of the volume of the prism at that instant (in cubic meters per second) ?

A function can be dependent on one or more variables. The change in the function due to a change in one o its variables is given by the functions derivative with respect to that variable. For functions that are composed of products of its variables, we may use the product rule to determine its derivative.

The volume of a square prism with base a and height h is given by

V = a²h

When the base and height are changing, we have

dV = 2ah(da/dt) + a²(dh/dt)

Given

a = 4 Km

h = 9 Km

da/dt = - 7 Km/min

dh/dt = 10 Km/min

we have

dV = 2(4 Km)(9 Km)(- 7 Km/min) + (4 Km)²(10 Km/min)

⇒ dV = - 504 Km³/min + 160 Km³/min = - 344 Km³/min

⇒ dV = - 5.73*10⁹ m³/s

8 0

4 years ago