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NemiM [27]
2 years ago
14

Can someone please help me with this ​

Mathematics
1 answer:
Luda [366]2 years ago
3 0

Step-by-step explanation:

Diameter = 2r

= 7.7 = 2r

7.7/2 = r

3.85=r

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Its $2.99 because 6.94-3.95=2.99 so $2.99

8 0
3 years ago
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Solve each triangle using the information provided. If necessary, round to the<br> nearest tenth.
Goryan [66]

Answer:

1) B = 66.5° c = 10.9

Step-by-step explanation:

I will do question one as an example. In general, for these questions you want to use the appropriate trigonometric ratios to solve for the variables and/or apply logic using rules regarding triangles. See attached image for all solving steps.

For side c, we can use Cosine of angle A for a ratio between 10 and c. When we write out the equation, we can solve for side c. So when we write it out, we get the equation:

cos23.5 = ¹⁰⁄c

c = ¹⁰⁄cos₂₃.₅

c = 10.9044 (make sure to round to the nearest tenth, which is one decimal place)

For angle B, since they have given two angles, you can solve for B since all angles of a triangle add up to 180 degrees.

So b = 180 - (90 + 23.5) = 180 - 113.5

b = 66.5

  • It is also possible to solve this using sine of angle B and solve it from there, but applying the theory this way is much simpler. (this is on the image if you're curious about it)

I hope this helps you with the other 3 questions.

4 0
3 years ago
What is the length of AB?​
kozerog [31]

Answer: 6 units

Step-by-step explanation:

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8 0
2 years ago
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garik1379 [7]

Answer:

Step-by-step explanation:

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4 0
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Jill arranges quarters in stacks of increasing powers of 2, starting with the zeroth power (20). If she ends up with six stacks,
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Stack 1 : 2^0 = 1 quarter.
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8 0
3 years ago
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