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joja [24]
3 years ago
7

Find the surface area of the prism. 12 in. 9 in. 3 in. The surface area is in . 2.

Mathematics
1 answer:
NARA [144]3 years ago
7 0

Answer:

The answer is 342 in.^{2}.

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exis [7]

I’m sorry I tried my best but I didn’t get the correct answer

3 0
3 years ago
What number is 9.5% of 20?
mars1129 [50]
1.9


9.5% = 0.095

0.095* 20 = 1.9
7 0
3 years ago
Can someone help me and give an explanation
Kitty [74]

Two triangles: left triangle with y degrees and 40 degrees and right triangle with x degrees.

  • 40 degrees from the left triangle, when adding with the unknown angle of the right triangle, is equal to 180 degrees.
  • Adding left triangle's (third) undetermined angle and x degrees angle (the other same angle), is equal to 90 degrees.
  • The right triangle is an isosceles triangle, meaning two equal angles, and one of them is x degrees. Thus, the other same angle is also x degrees.

----------------------------------------------------------------------------------------------------------

1) Subtract 180 - 40 = 140 degrees. 140 degrees is the unknown angle of right triangle.

2) 140 + x + x = 180 (equation)

  • 140 + 2x = 180
  • 2x = 180 - 140
  • 2x = 40
  • x degrees = 20 degrees

ANSWER: x = 20 DEGREES

----------------------------------------------------------------------------------------------------------

1) With knowledge of x degrees being 20 degrees, the other same angle is 20 degrees, too.

2) Subtract 90 - 20 = 70 degrees. 70 degrees is the (third) undetermined angle

of left triangle.

2) 70 + 40 + y = 180

  • 110 + y = 180
  • y = 180 - 110
  • y = 70 degrees

ANSWER: y = 70 DEGREES

----------------------------------------------------------------------------------------------------------

Whew. Hope this helps you out, and let me know asap if you're confused on any part.

6 0
3 years ago
A board was 63.5 inches long. If you have 3 of them , what is the total length of all three ?
zepelin [54]
The answer is 190.5
63.5 times 3
6 0
4 years ago
A debt of $12,000 with interest at 5% compounded monthly is to be repaid by equal payments at the end of each year for three yea
malfutka [58]

Answer:

  3.75 years

Step-by-step explanation:

If the debt is to be paid in 3 years, 9 months, then the term of the loan is ...

  3 9/12 = 3 3/4 = 3.75 . . . years

5 0
3 years ago
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