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3 years ago

Explain how you can tell when a formula represents a length an area or a volume

2 answers:

7 0

Do you mean how you can tell between an area formula and a volume formula? Well usually like on a reference sheet it says the shape and the letter a or v, a representing area and v representing volume. I hope this helps, if it doesn't please tell me in the comment section

MatroZZZ [7]3 years ago

7 0

C = 2pi*r, the r represents a length
A = pi*r^2 the r^2 represents a product of length*length which is area
V = (4/3)pi*r^3 the r^3 represents a product of length*length*length which is volume, a sphere

( this is for a circle)

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What is the volume of the prism? ________ cm3

Vera_Pavlovna [14]

The asnwer would be 768 cm^3

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3 years ago

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John’s teacher wants to buy giant cookies for the entire class of cookies cost $2.40 each write an equation that shows how many

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3 years ago

Can someone please explain an inequality?

kodGreya [7K]

An inequality is the relation between two expressions that are not equal, employing a sign such as ≠ “not equal to,” > “greater than,” or < “less than.”

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3 years ago

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Here is a riddle:

lilavasa [31]

Answer:

The system of inequalities that represents this situation will be:

$f + s < 10$

$f - s > 3$

Step-by-step explanation:

Let 'f' represent the first number

Let 's' represent the second number.

Given that the sum of the two numbers is less than 10. As 'less than' can be represented by '<'.

so the inequality would be: f + s < 10

Given that If we subtract the second number from the first, the difference is greater than 3. As 'greater than' can be represented by '>'.

so the inequality would be: f-s > 3

Thus, the system of inequalities that represents this situation will be:

$f + s < 10$

$f - s > 3$

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3 years ago

A projectile is fired straight up from ground level with an initial velocity of 112 ft/s. Its height, h, above the ground after

PtichkaEL [24]

Answer:

Step-by-step explanation:

We can do this the easy way and just set up an inequality and let the factoring do the work for us. The inequality will look like this:

$-16t^2+112t>192$ We will move the constant over and get

$-16t^2+112t-192>0$ and when you factor this you get that

3 < t < 4

Between 3 and 4 seconds is where the projectile reaches a height higher than 192 feet. With a little more work and some calculus you can find the max height to be 196 feet.

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3 years ago