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jonny [76]
2 years ago
5

How do i solve for this?

Mathematics
1 answer:
vekshin12 years ago
6 0
For one set the two equations equal to eachother and solve from there. 2 is 45
For three set the two equations equal. Same for four
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Asap! find the length of the arc
Fantom [35]

<u>Answer</u>:

A.  \frac{21}{4} \pi\ \space\ in

<u>Step-by-step explanation:</u>

The formula for arc length is:

arc length = rθ

where:

r is the radius = 7 in

θ is the central angle in radians = 135  ×  \frac{ \space\ \pi\ }{180}  = 3/4 π

Substituting these values into the formula:
arc length = 7 in × 3/4 π

                 = \frac{21}{4} \pi\ \space\ in

                             

6 0
2 years ago
- Calculate the area of the circle if your radius is 6 inches. (Area = pi r ^2) (Give answer in exact form
dem82 [27]

Answer:

37.7 inches

Step-by-step explanation:

u have the formula so with r being radius just multiply by 2 then multiply that answer by pie and round to the nearest tenth.

4 0
3 years ago
Read 2 more answers
I will mark you BRAINLIST please help with all 3 and show work on a paper please I need this thank you !!
o-na [289]
I hope you can understand this :)

8 0
3 years ago
Find a formula for the nth term of the arithmetic sequence a1=-17 a2=-12 a3=-7 a4=-2
MAVERICK [17]

Answer:

Step-by-step explanation:

Recursive formula

a1 = -17

a^n = a^n-1 + 5

Explicit formula:

a^n = -17 + (n-1) * 5

3 0
3 years ago
A sample of n = 4 scores has SS = 48. What is the estimated standard error for this sample? Group of answer choices
mylen [45]

Answer:

2

Step-by-step explanation:

We have

n = 4 scores

SS = 48

For this question, we are required to find the estimated standard error

To get this, we first solve for the variance

S² = SS/n-1

= 48/4-1

= 48/3

= 16

Then S² = 16

S = √16

S = 4

Then the estimated standard error is given by:

S/√n

= 4/√4

= 4/2

= 2.

The estimated standard error is 2.

4 0
2 years ago
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