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ki77a [65]
3 years ago
11

What is 14 x 72 equal

Mathematics
2 answers:
svp [43]3 years ago
7 0

Answer:

14 x 72 = 1008

Step-by-step explanation:

irina1246 [14]3 years ago
3 0

Answer:

1008

Step-by-step explanation:

When you multiply, always start on the first value. In this case, this would be 2 from 72.

2 * 4

==> 8[tex]and[tex]2 * 1

2

Write now, you should have 82 as your first value.

Now for your second value, which would be 7. But first you need to add a zero, because you are doing the tens place.

7 * 4

==> 28

<u>Now you put the two over your next equation:</u>

and

7 * 1

==> 7

+1

==> 9

Now you should have 980 written.

<u>Now add your two numbers together:</u>

<u></u>

82 + 980

==> 1008

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3 years ago
This table gives a few (x, y) pairs of a line in the coordinate plane. What is the x-intercept of the line?
attashe74 [19]

Answer:

(-14,0)

Step-by-step explanation:

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7 0
3 years ago
1) Lance can paint the room in 5 hours, while Kim can paint the same room in 4 hours.
gayaneshka [121]
1. In an hour, Lance can do 1/5 of the job and Kim can do 1/4 of the same job. Letting x be the number of hours it will take them to do the job together.
                                     (1/5 + 1/4) x = 1
The value of x is 20/9 or approximately 2.22 hours. 

2. Same as the concept above, the equation that would best describe the situation is,
                                   (1/x + 1/2x)(5) = 1
The value of x is 7.5 hours. Since this value is the number of hours Dominique can do the job alone, Houston's time will be 15 hours. 
8 0
3 years ago
Read 2 more answers
An open box with a square base is constructed so that it has a volume of 64in^3. The base needs to be made out of a material tha
Ivahew [28]

The volume of a box is the amount of space in the box

The dimensions that minimize the cost of the box is 4 in by 4 in  by 4 in

<h3>How to determine the dimensions that minimize the cost</h3>

The dimensions of the box are:

Width = x

Depth = y

So, the volume (V) is:

V = x^2y

The volume is given as 64 cubic inches.

So, we have:

x^2y = 64

Make y the subject

y = \frac{64}{x^2}

The surface area of the box is calculated as:

A =x^2 + 4xy

The cost is:

C = 2x^2 + 4xy --- the base is twice as expensive as the sides

Substitute y = \frac{64}{x^2}

C = 2x^2 + 4x * \frac{64}{x^2}

C =2x^2 +  \frac{256}{x}

Differentiate

C' =4x -  \frac{256}{x^2}

Set to 0

4x -  \frac{256}{x^2} = 0

Multiply through by x^2

4x^3 -  256= 0

Divide through by 4

x^3 -  64= 0

Add 64 to both sides

x^3 =  64

Take the cube roots of both sides

x = 4

Recall that:

y = \frac{64}{x^2}

So, we have:

y = \frac{64}{4^2}

y = 4

Hence, the dimensions that minimize the cost of the box is 4 in by 4 in  by 4 in

Read more about volume at:

brainly.com/question/1972490

4 0
3 years ago
PLEASE HURRY 15 POINTS Subtract. 346.37 – 97.5 A. 248.87 B. 249.32 C. 336.62 D. 351.27
MrRa [10]
Answer is A Hope this helped!
7 0
4 years ago
Read 2 more answers
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