Acompany makes concrete bricks shaped like rectangular prisms. each brick is 14 inches long, 8 inches wide, and 5 inches tall. if they used 16,800in3 of concrete, how many bricks did they make?

We'll first need to find the area of one brick. We'll do this by doing length × width × height.

14 × 8 × 5

= 560

So one brick is 560in³.

Now, to find how many bricks there are, we'll divide the total area of concrete (16,800in³) by the area of one brick (560in³)

16,800 ÷ 560

=

30

There are 30 bricks that the company made.

he kicked it up? is this the answer ?

step-by-step explanation:

the solution of the equation is 2.23 ⇒ answer b

step-by-step explanation:

* lets revise the meaning of exponential function

- the form of the exponential function is y = ab^x, where a ≠ 0, b > 0 ,  

  b ≠ 1, and x is any real number

- it has a constant base b

- it has a variable exponent x

- to solve an exponential equation, take the log or ln of both sides,  

  and solve for the variable

* lets solve the problem

∵

- the base is 7 and the exponent is x

- insert ㏑ in both sides

∴

- use the rule

∴ x ㏑(7) = ㏑(77)

- to find x divide both sides by ㏑(7)

∴

* the solution of the equation is 2.23 to the nearest 2 decimal places