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Mandarinka [93]
3 years ago
9

What is the ratio of surface area to volume?

Mathematics
1 answer:
Katena32 [7]3 years ago
6 0
The ratio of surface area to volume is the amount of surface area per unit volume of a thing. This is an important value in various topics. In chemistry, this is an important value for chemical reactions. It can show reactivity of a solid material. Also, it has found some importance in biology because it shows how the cells are affected by the environment where that cell is found.<span />
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What value of c in the equation cx+4y=12 would give the equation a slope of 8? please help me
Lorico [155]

Answer:

1cy

Step-by-step explanation:

c(8)+4y=12

8c+4y=12

12cy /12cy=12 /12cy

1cy

7 0
2 years ago
Pablo runs 1.5 miles on his first day of training for a road race the next day he increases his distance run by 0.5 miles the da
BlackZzzverrR [31]
0.5x+1.5=
0.5(12)+1.5=11.5
7 0
3 years ago
Read 2 more answers
Write a rule for the nth term of the arithmetic sequence described below.
belka [17]

Answer:

an = 115 + (n - 1) (-6)

a25 = - 29

Step-by-step explanation:

We use the definition for the nth term of an arithmetic sequence:

an = a1 + (n - 1) d

a5 = 91 = a1 + (5 - 1) d

91 = a1 + 4 d

a20 = 1 = a1 + (20 - 1) d = a1 + 19 d

1 = a1 + 19 d

now we subtract term by term one expression from the other

90 = 4 d - 19 d

90 = - 15 d

divide both sides by -15 to isolate d

d = 90 / (-15) = -6

Now we can calculate what a1 is using for example:

1 = a1 + 19 d

1 = a1 - 114

add 114 to both sides:

115 = a1

Then our general expression for the sequence is:

an = 115 + (n - 1) (-6)

We can now use it to calculate the value of a25:

a25 = 115 + (24) * (-6) = -29

7 0
2 years ago
Please help, it’s urgent
WINSTONCH [101]

Answer:

Hey buddy, here is your answer. Hope it helps you.

Step-by-step explanation:

As angle CAB is a linear pair and is 109 degrees. We need to simply subtract it by 180. So 180-109=71. So angle CAE is 71 degrees.

4 0
2 years ago
How do I move one side to the other:<br><br> <img src="https://tex.z-dn.net/?f=sin%5E2%5Calpha%20-%20cos%5E2%5Calpha%20%3D%202si
Vera_Pavlovna [14]

9514 1404 393

Explanation:

You can use the addition property of equality to "move" a term from one side of the equation to the other. For example, if you want to move the cos²α term, you can add cos²α to both sides of the equation:

  sin²α -cos²α +cos²α = 2sin²α -1 +cos²α

When this is simplified, it becomes ...

  sin²α = 2sin²α +cos²α -1 . . . . . . the cos²α term is gone from the left

__

The equation you have is an identity. The left and right sides are equal for any value of α. When you have such an equation as a trig problem, you are often being asked to prove it is true. The way you do that is to make use of other trig identities to transform one side so that it matches the other side.

Here, you can use the trig identity ...

  sin²α +cos²α = 1

If you use this to substitute for 1 on the right, you have ...

  sin²α - cos²α = 2sin²α - (sin²α +cos²α)

Now, when you collect terms, you get ...

  sin²α - cos²α = 2sin²α - sin²α -cos²α . . . eliminate parentheses

  sin²α - cos²α = sin²α - cos²α . . . . . proof of your identity

7 0
3 years ago
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