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BabaBlast [244]
3 years ago
15

On a circle of radius 7 feet, what angle would substend an arc of length 7 feet

Mathematics
1 answer:
rusak2 [61]3 years ago
7 0
Central angle (radians) = arc length / <span>radius  </span>
central angle (radians) = 1 radiancentral angle (radians) = 57.296 degrees
Source 1728.com/radians.htm

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What is the perimeter of quadrilateral ABCD?
alex41 [277]

Answer:

Perimeter of quadrilateral ABCD will be  104

Step-by-step explanation:

Given quadrilateral A'B'C'D' is a reflection of quadrilateral ABCD over the line m.

So, all the corresponding sides of both the quadrilateral should be equal.

Also, we can see from the diagram that A'D'=32,\ A'B'=22,\ BC=20,\ and\ CD=30

As both image are reflection of same scale we can add corresponding sides.

So, the perimeter of ABCD will be

AB+BC+CD+DA

And we have AB=A'B'\ and\ AD=A'D'

Now, perimeter of  ABCD will be 22+20+30+32

Perimeter of quadrilateral ABCD is 104

5 0
3 years ago
What os the answer on 4<br> it is saying what is the value of 9
Lana71 [14]
The answer to number four is 90,000.

hope this helps!

-SummerBreaker ;)
4 0
3 years ago
Peter is writing a number in scientific notation.The number is grater that ten million and less that one hundred million.Which e
OLga [1]

Answer:

M  =  a \times 10^7  where 1 < a ≤ 9

The EXPONENT USED BY PETER is 7 in all the possible cases.

Step-by-step explanation:

Let us assume the needed number is M.

Also, given:

The needed number is GREATER than 10 Million.

⇒ M  > 10 Million

⇒ M > 10,000,000

⇒ M > 1 \times 10^7  ...... (1)

The needed number is SMALLER than 100 Million.

⇒ M  <  100 Million

⇒ M < 100,000,000

⇒ M  <  1 \times 10^8  ...... (2)

Comparing (1) and (2) we can see that M can have more than 7 zeroes after 1 but LESS than 8 zeroes after 1.

So, the possible values of M can be:

M  =  a \times 10^7  where 1 < a ≤ 9

So, the EXPONENT USED BY PETER is 7 in all the possible cases.

5 0
3 years ago
A service center receives an average of 0.6 customer complaints per hour. Management's goal is to receive fewer than three compl
True [87]

Answer:

0.18203 = 18.203% probability that exactly four complaints will be received during the next eight hours.

Step-by-step explanation:

We have the mean during a time-period, which means that the Poisson distribution is used to solve this question.

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}

In which

x is the number of sucesses

e = 2.71828 is the Euler number

\mu is the mean in the given interval.

A service center receives an average of 0.6 customer complaints per hour.

This means that \mu = 0.6h, in which h is the number of hours.

Determine the probability that exactly four complaints will be received during the next eight hours.

8 hours means that h = 8, \mu = 0.6(8) = 4.8.

The probability is P(X = 4).

P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}

P(X = 4) = \frac{e^{-4.8}*4.8^{4}}{(4)!} = 0.18203

0.18203 = 18.203% probability that exactly four complaints will be received during the next eight hours.

5 0
3 years ago
The volume of the cube is 216 cubic units what is the side length
Naddik [55]

The side length is six units.

A cube has three measurements: length, width, and height

All the measurements have to be the same.

This allows you to cube root.

The cube root of 216 is 6.

The side length of the cube is 6 units.

Check:

6 * 6 * 6 = 216.

It is correct, so our answer is proven to be correct.

7 0
3 years ago
Read 2 more answers
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