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natulia [17]
3 years ago
7

Help me plz with my hw

Mathematics
1 answer:
inna [77]3 years ago
6 0
Circumference is found with the formula

c = pi × d

d is diameter and we will use 3.14 for pi.

The diameter is the measure across the center of the circle. In the first problem, you are given the radius, so we have to multiply by 2 to get the diameter. Then we can use the formula.

12.4 in × 2 = 24.8 in (that's the diameter)

c = pi × D
c = 3.14 × 24.8
c = 77.872 inches

circumference is 77.872 inches.

Try the other problems on your own. They are just like this one. Just make sure they are giving you the diameter and not the radius. Post if you have problems.
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The graphs below represent the equations y = 2* and y = 2x + 1.<br> Graph 1<br> Graph 2
sveticcg [70]

Answer:

a. Graph 1 is y=2^x and Graph 2 is y=2x+1

b. The slope increases over time on Graph 1, and remains the same on Graph 2

c. Graph 1 is exponential (y=2^x) and Graph 2 is linear (y=mx+b)

Hope this helps!

Step-by-step explanation:

a:  y=2* is exponential, so it is graph 1 (it makes a curve) y=2x+1 is linear (makes a line), and it has a slope of 2 and a y-intercept of 1, so y=2x+1 is graph 2!

b. slopes of Exponential Functions usually continue to increase (unless the number that is being affected by the exponent x is less than 1, in which they would continue to decrease), and linear functions have a set slope (m in y=mx+b)

c. Explanation is in the answer (it says to explain)

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3 years ago
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aev [14]

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If the perimeter of a sector is 6 times its radius, what is the central angle of the sector?
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Step-by-step explanation:

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Read 2 more answers
2^2 y^-6<br> -------------<br> 8^1 z^0 x^-7<br><br> How do you solve this?
Ira Lisetskai [31]
4x^7
——-
8y^6

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