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storchak [24]
3 years ago
15

Guys I need this ASAP I NEED the exact answer in terms of n/pi. I also need to use n/pi=22/7 and express the answer as a fractio

n in lowest terms. And I need to use the n/pie button on my calculator and express the answer to the nearest hundredth but I don’t know how to do this so PLEASE LOOK AT THE PIC and ANSWER ALL 3 parts of this so I can get full credit please I am begging you I need this ASAP!!

Mathematics
1 answer:
TiliK225 [7]3 years ago
3 0

Answer:

a.  C=28\pi \ cm

b. C=\frac{88}{1}\ cm

c.  C=87.96 \ cm

Step-by-step explanation:

The formula to find the circumference of a circle is:

C=2\pi r

Where "r" is the radius of the circle.

In this case you can identify that:

r=14\ cm

Then:

a. Substituting the radius of the circle into the formula, you get:

C=2\pi (14\ cm)\\\\C=28\pi \ cm

b. Substitute the radius into the formula (Remeber to use \pi=\frac{22}{7} ) and then evaluate. So you get:

C=2(\frac{22}{7})(14\ cm)\\\\C=\frac{616}{7}\ cm\\\\C=\frac{88}{1}\ cm

c. Substitute the radius into the formula but this time you must use the  π button in the calculator:

 C=2\pi (14\ cm)\\\\C=87.964 \ cm

Rounded to the nearest hundreth, this is:

C=87.96 \ cm

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vitfil [10]

Answer:

The correct option is the last one.

Step-by-step explanation:

To transform the graph of y = x ^ 2 into y = -2(x - 2) ^ 2 + 2 the following steps are fulfilled:

1) Move the graph 2 units to the right:

Let y = f (x-2) then y =(x-2) ^ 2 Notice that the cut point has been moved to x = 2.

2) Reflect on the x axis:

To reflect a graph on the x-axis we do y = -f(x) Then f (x) = -(x-2) ^ 2

3) Stretch according to factor 2.

For this we do y = 2f(x)

Then we have f(x) = -2 (x-2) ^ 2

4) Move up the graph in two units:

We do y = f(x) +2

Then y = -2(x-2) ^ 2 +2.

These steps coincide with those listed in the last option. Therefore the correct option is the last one.

"Translate 2 units on the right, reflect on the x-axis, stretch according to the factor 2 and translate 2 units"

4 0
3 years ago
Carson can choose one vehicle (car or truck), one color (blue, red, or silver), and one type of transmission (standard or automa
77julia77 [94]

Answer:

12 possible outcomes

Step-by-step explanation:

Choosing 1 vehicle from 2 = 2C1 = 2

Choosing 1 color from 3 = 3C1 = 3

Choosing 1 type from 2 = 2C1 = 2

Number of possible outcomes :

2C1 * 3C1 * 2C1

2 * 3 * 2

= 12 different possible outcomes

5 0
3 years ago
I don’t like to beg but I guess I’m in need..
djverab [1.8K]

Answer:

-4 < n ≤ 5

Step-by-step explanation:

Since the left inequality is an open circle and going to the right, the sign will be >

Since the right inequality sign is a closed circle and is going left, the sign would be ≤

The open circle ends at -4 so, n > -4

The closed circle ends at 5 so, n ≤ 5

You combine them and it looks like this:

-4 < n ≤ 5

6 0
3 years ago
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Yakvenalex [24]

Answer:

false true false true

Step-by-step explanation:

4 0
2 years ago
Suppose that public opinion in a large city is 55% in favor of increasing taxes to support renewable energy and 45% against such
Harman [31]

Answer:

The approximate probability that more than 360 of these people will be against increasing taxes is P(Z> <u>0.6-0.45)</u>

                                              √0.45*0.55/600

The right answer is B.

Step-by-step explanation:

According to the given data we have the following:

sample size, h=600

probability against increase tax p=0.45

The probability that in a sample of 600 people, more that 360 people will be against increasing taxes.

We find that P(P>360/600)=P(P>0.6)

The sample proposition of p is approximately normally distributed mith mean p=0.45

standard deviation σ=√P(1-P)/n=√0.45(1-0.45)/600

If x≅N(u,σ∧∧-2), then z=(x-u)/σ≅N(0,1)

Now, P(P>0.6)=P(<u>P-P</u>   >     <u>0.6-0.45)</u>

                             σ          √0.45*0.55/600

=P(Z> <u>0.6-0.45)</u>

       √0.45*0.55/600

8 0
3 years ago
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