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patriot [66]
2 years ago
12

Suppose the length and width of the box double. Does the surface area S double? Complete the explanation.

Mathematics
1 answer:
dezoksy [38]2 years ago
6 0
Answer is NO, it does not double.

Step by step.

Equation for surface area (SA) = 2lw+2lh+2wh

If we double the length and width, making them each 2l and 2w, we then have:

2(2l x 2w) + 2(2l x h) + 2(2w x h)
= 2(4lw) + 4lh + 4wh
SA = 8lw + 4lh + 4wh

If the surface area had been doubled, we should get the equation (4lw + 4lh + 4wh) for a doubled surface area.

So no, it is not doubled.
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8 0
3 years ago
Solve the equation then check your solution 5p=140 <br> A)28<br> B)700<br> C)-28<br> D)26
Kruka [31]

Answer:

p=28

Step-by-step explanation:

5p=140

To to find the value of p divide both sides by 5 (5p/5 and 140/5)

p=28!


4 0
3 years ago
Read 2 more answers
Write parametric equations of the line 2x-y=3
dangina [55]
In this item we are given with the equation, 2x - y = 3. The equation contains two variables, x and y. We assume in this item that the value of x is independent of the value of y; however, y values depends on the given values of x. In parametric form, the equation would take the form,

    f(x) = y = ax + b

where a is the numerical coefficient of x and b is constant. Transforming the given equation to this form,

   f(x)  = y = 2x - 3
4 0
4 years ago
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You start driving north for 24 miles, turn right, and drive east for another 10 miles. At the end of driving, what is your strai
yawa3891 [41]

Answer:

26 miles

Step-by-step explanation:

Given: 24 miles drive to north.

          10 miles drive to east.

Driving pattern form a right angle triangle, which has three leg including straight line distance from starting point (hypotenous).

Now, using Pythogorean theoram to find straight line distance from starting point.

h²= a²+b²

Where, h is hypotenous

            a is opposite leg

            b is adjacent leg.

⇒h²= 24^{2} + 10^{2}

⇒h^{2} = 576+100

⇒h^{2} = 676

Taking square root on both side, remember; √a²= ±a

⇒h=\sqrt{676}

∴ h= \pm 26

Ignoring -26 as distance cannot be negative.

Hence, 26 miles is the straight line distance from starting point.

8 0
3 years ago
What is the slope intercept form of -11x+2y=1?
ikadub [295]

Answer:

y=  11/2 x+1/2

Step-by-step explanation:

Slope Intercept form: y = mx + b where m = slope of the line, b = y intercept and (x,y) are coordinate points on the line.

To put this in slope-intercept form, you need to solve the equation for y

-11x + 2y  =  1

<u>+11x             +11x</u>  add 11x to both sides of the equation

      <u>+2y</u> = <u>1 + 11x</u>

        2         2     Divide both sides by 2 (so y is by itself)

y = 11/2x + 1/2

6 0
3 years ago
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