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2 years ago

What is the area of the base of a triangular prism if the volume is 210 ft3 and the height is 14 ft?

1 answer:

3 0

We have the area of the base of a triangular prism= a*b
the volume of triangular prism =a*b*c( where c is the height) so that 210=a*b*14 ==> 210= base area*14==> base area= 210/14

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What is the approximate distance from Denver to Chicago? Use a proportional relationship to solve the problem. Show your work.

Juli2301 [7.4K]

Answer:

$d = 1002.6\,mi$

Step-by-step explanation:

Approximately 5 units are equal to 557 miles and the scaled distance between Denver to Chicago is 9 units. The real distance can be estimated by simple rule of three:

$d = \frac{9}{5}\times (557\,mi)$

$d = 1002.6\,mi$

7 0

3 years ago

A cinema has three screens last Saturday there were 500 visitors 40% went to screen 1 ,25% went to screen 2 the rest went to scr

ratelena [41]

Answer:

200 visitors went to screen 1.

125 visitors went to screen 2.

175 visitors went to screen 3.

Step-by-step explanation:

We will find number of visitors who went to screen 1 by finding 40% of 500 as we are told that 40% of 500 visitors went to screen 1.

$500*\frac{40}{100} =5*40=200$

Therefore, 200 visitors went to screen 1.

Now we will find number of visitors who went to screen 2. We are told that 25% of 500 visitors went to screen 2.

$500*\frac{25}{100} =5*25=125$

Therefore, 125 visitors went to screen 2.

Now we will find the number of visitors who went to screen 3 by subtracting combined number of visitors who went to screen 1 and screen 2 from total number of visitors.

$500-(200+125)$

$500-325=175$

Therefore, 175 visitors went to screen 3.

7 0

2 years ago

(-2x-1)^2=0 How to solve brackets, please help

malfutka [58]

Not quite sure what you mean by brackets, but you can get the solution to this equation in a few steps:

(-2x - 1)² = 0 ... square root both sides to eliminate the squared binomial
√(-2x - 1)² = √0 ... simplify; the square is canceled out and the root of 0 brings you back to 0
-2x - 1 = 0 ... solve like a two-step equation
-2x = 1
x = -1/2 is your x-value.

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3 years ago

Read 2 more answers

Help please with math

Annette [7]

Answer:

(2 x a)+(3 x b)+c=total points

Step-by-step explanation:

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2 years ago

Calculate the largest rectangular area one can enclose with 14 inches of string?

bagirrra123 [75]

The correct answer to this question is 12.25 sq inches.

The largest rectangle is a square.

So if you divide 14" by 4 then you get 4 3.5" sides.

Area of a rectangle = L*W

Area of a rectangle = 3.5 * 3.5

Area of a rectagle = 12.25 sq inches

3 0

2 years ago