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Xelga [282]
3 years ago
13

Helena is an engineer that designs packaging for new products. She designed a box in the shape of a rectangular prism with dimen

sions of 10 inches by 7 inches by 4 inches. What is the surface area of the box?
a.138 square inches
b.276 square inches
c.280 square inches
d.441 square inches
Mathematics
2 answers:
lisov135 [29]3 years ago
3 0
B is the answer
10x7= 70 (Base 1)
10x7= 70 (Base 2)
10x4= 40 (Front)
10x4= 40 (Back)
  7x4= 28 (Side 1)
  7x4= 28 (Side 2)
---------------------------------
   SA= 276
Remember to think of a rectangular prism as a box, then label the base, the width, and the height :)
ss7ja [257]3 years ago
3 0

Answer: I think it B. 276 square inches

Step-by-step explanation:

There you go your welcome have great day everyone

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IrinaK [193]

Answer:

Step-by-step explanation:

A]

Both have the same surface area. The numbers are just rearranged.

B]

Is the correct answer.

The surface area of the first one is 2*8*5 + 2*8*6 + 2*5*6 = 236

The surface area of the second is 2*10*8 + 2*10*3 + 2*8*3 = 244

C]

Another rearrangement. Not the answer.

D]

4 0
3 years ago
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Penny is 100 centimeters tall. Jeremy is 38 inches tall. Who is taller
NNADVOKAT [17]
1 inch = 2.54 cm
100 cm * (1 inch)/(2.54 cm) = 39.37 inches
Penny is taller
4 0
3 years ago
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The equation Y-3 = -2(x+ 5) is writen in point-slope form. What is the y-intercept of the ine?
olga_2 [115]

Answer:

-7

Step-by-step explanation:

the equation can be simplified to y = -2x - 7

the last number of the equation represents the y-intersept

hope this helped!

6 0
3 years ago
I know how to do this but I just want to spend some points :)
Lunna [17]

Answer:

domain: all real numbers

range: y<-2

Step-by-step explanation:

I think its correct but already know the answer sooo yea

7 0
3 years ago
a cereal box can hold 144 cubic inches of cereal. if the box is 8 inches long and 1.5 inches wide how tall is the box?
Andreas93 [3]
The volume of a rectangular prism is simply length * width * height.
Therefore, all we have to do to find the height of the cereal box is divide the volume by the width and the length.

144 / 8 = 18

18 / 1.5 = 12

The cereal box is 12 inches tall.
Hope that helped =)
3 0
4 years ago
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