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3 years ago

5

What am I supposed to do

2 answers:

arsen [322]3 years ago

7 0

Im pretty sure you do 14 x 9 which is 126 then do 126 x 3 which is 378mm is your answer expression: (14mmx9mm)x3mm answer: 378mm
hope this helps

masya89 [10]3 years ago

4 0

First focus on the main sides. To find the surface area of one side, you must do LxW (length x width). Which is 9x14. And since there are 2 of these size rectangles, 9x14x12=252 (For the ones on the front and back). Now for the top and bottom, use LxW again, 3x14, and since there are 2 of these size rectangles, 3x14x2=84. Now for the Left and Right sides, 3x9. Once again, there are two of these sizes so 3x9x2=54. Then add all those up, the ANSWER IS 252+84+54= 390

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Help Please . its due in 5 hours and i cant find answers

dolphi86 [110]

Answer:

39 pi cubic inches

Step-by-step explanation:

The volume of a cone is (1/3)(area of the base)(height).

$V=\frac{1}{3}Bh$

Find the area of the circular base. The circumference of a circle is $C=2\pi r$ , so

$2\pi r = 6\pi\\\\r=3$

Now that you know the radius of the circular base, you can find its area:

$A=\pi r^2 = \pi(3^2)=9\pi$

The height of the cone is 13. Time to use the volume formula.

$V=\frac{1}{3}Bh\\\\V=\frac{1}{3}(9\pi)(13)\\\\V=39\pi$

6 0

3 years ago

-5(m+4)-10(8-5m) which’s is this

Darina [25.2K]

-5m-20-80+50m=0
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3 0

3 years ago

Read 2 more answers

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dangina [55]

Answer:

60

Step-by-step explanation:

<u>Step 1: Solve for x</u>

x + 3x + 2x = 180

6x / 6 = 180 / 6

x = 30

<u>Step 2: Find the measure of angle C</u>

Angle C = 2x

Angle C = 2(30)

Angle C = 60 degrees

Answer: 60

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4 years ago

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Answer:

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One number is six times as large as a certain smaller number. Let x represent the smaller number. Write the larger number in ter

Svetach [21]

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4 years ago