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DaniilM [7]
3 years ago
7

Help plz answer this

Mathematics
2 answers:
bulgar [2K]3 years ago
6 0

Answer:

First choice: 58 seconds.

Step-by-step explanation:

27.8 is approximately 28 seconds, because 8 ≥ 5, so the number rounds up.

30.12 is approximately 30 seconds, since 1 < 5.

So, 28 + 30 is 58. Therefore, 27.8 + 30.12 ≈ 58.

klemol [59]3 years ago
5 0

Just round them then add together

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What is the surface area of this triangular prism? The base of each triangle is 42 m and the height of the triangular base is 20
shutvik [7]

<u>Given</u>:

The base of each triangular base is 42 m.

The height of each triangular base is 20 m.

The sides of the triangle are 29 m each.

The height of the triangular prism is 16 m.

We need to determine the surface area of the triangular prism.

<u>Surface area of the triangular prism:</u>

The surface area of the triangular prism can be determined using the formula,

SA=bh+(s_1+s_2+s_3)H

where b is the base of the triangle,

h is the height of the triangle,

s₁, s₂ and s₃ are sides of the triangle and

H is the height of the prism.

Substituting the values, we get;

SA=(42)(20)+(42+29+29)(16)

SA=840+(100)(16)

SA=840+1600

SA=2440

Thus, the surface area of the triangular prism is 2440 m²

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3 years ago
PLEASE ANSWER FIRST GETS BRAINLIEST
notsponge [240]

Answer: 28 red marbles


Step-by-step explanation:

Since there are in total 140 marbles and there are 5 red marbles, just simply divide 140 by 5 and you get your answer. 28 red marbles.

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3 years ago
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Marianna [84]
If you multiply $60 by 0.15 you'll get 9 which is the taxes of the meal. Since he leaves the same percentage of tip, now we add 9+9 and get $18..
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What is the volume of the sphere in terms of<br> |<br> --<br> 6 in.
sineoko [7]

Answer:

904.3 cubic inches

Step-by-step explanation:

v= 4/3 π r^3

= 1.33 x 3.14 x 6^3

= 904.3 cubic inches

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Answer:

Step-by-step explanation:

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