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fiasKO [112]
1 year ago
8

The circumference of the circle is 9.42 inches, What is the diameter of the circle?

Mathematics
1 answer:
Elena L [17]1 year ago
5 0

EXPLANATION

Since the circumference of the circle is 9.42, we can get the diameter by applying the following relationship:

Circumference=2\pi r=2\pi\frac{d}{2}=\pi d

Isolating the diameter:

Diameter=\frac{Circumference}{\pi}

Plugging in the numbers:

Diameter=\frac{9.42}{3.14}=3

Therefore, the diameter is equal to 3 inches.

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I need help with my pre-calculus homework, please show me how to solve them step by step if possible. The image of the problem i
Anna [14]

We know that the law of sines states that:

\frac{\sin\alpha}{a}=\frac{\sin\beta}{b}

For simplicity, let:

\beta=m\angle A_1BC

In triangle A1BC this leads to:

\begin{gathered} \frac{\sin31}{5}=\frac{\sin\beta}{6} \\ \sin\beta=\frac{6}{5}\sin31 \\ \beta=\sin^{-1}(\frac{6}{5}\sin31) \\ \beta=38.174 \end{gathered}

Therefore:

m\angle A_1BC=38.174

Now, triangle A2BC is isosceles which means that both the base angles are equal, since angle CA1B and A2A1B are supplementary we have:

m\angle CA_2B=180-38.174=141.826

8 0
1 year ago
I can’t figure this out, any help?
saveliy_v [14]

if the spinner is fair , it will land on green for 60 times , there are 24% chances for the spinner to land on purple ,For 1000 spins it will land 150 times on blue

<h3>What is Probability ?</h3>

Probability can be defined as the study to predict the likelihood of an event.

It has a range from 0 to 1.

Probability if the spinner is fair is 1/5 for each colour.

As it is spun 300 times

(1/5) * 300 = 60 times

So if the spinner is fair , it will land on green for 60 times.

(b) The probability of landing on purple theoretically is 60times , 20 % chances

but it can be seen from the data provided that for 300 spins , the spinner landed for 72 times

which is 24% , i.e. there are 24% chances for the spinner to land on purple.

(c)Theoretically blue has 20% chances 200 times , But it is seen in the data obtained that

for 300 spins the spinner is landing on blue for 45 times.

For 1000 spins it will land 1000*45/300 = 150 times.

To know more about Probability

brainly.com/question/11234923

#SPJ1

7 0
1 year ago
Lee has a jar of 100 pennies. She adds groups of 10 pennies to the jar. She adds 5 groups. What numbers does she say?
kherson [118]
If Lee starts with 100 pennies and adds groups of 10, the operation is addition. Since she does this 5 times, there is 5 different numbers Lee said.

100 + 10 = 110
110 + 10 = 120
120 + 10 = 130
130 + 10 = 140
140 + 10 = 150

Thus, all of the numbers she said were 110, 120, 130, 140, and 150.


Hope this helps! :)

4 0
3 years ago
Read 2 more answers
Help asap! giving brainliest!
saw5 [17]

Answer:

Step-by-step explanation:

2

would you like to know how I got that?

4 0
2 years ago
Consider the quadratic function Y= -(x-3)^2+4
wlad13 [49]

Answer:

-(x^2-2*x*3+3^2)+4=-x^2+6x-9+4=x^2+6x-5

Step-by-step explanation:

4 0
2 years ago
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