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3 years ago

In the formula C = 2π r, the letter C stands for ?

Mathematics

1 answer:

Rzqust [24]3 years ago

3 0

Answer:

Step-by-step explanation:

C stands for circumference of the circle.

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If profit is p% and cost price is C.P what will be the selling price?

harkovskaia [24]

Answer:

SP = (1+P/100)CP.

Step-by-step explanation:

P% is our profit on our cost price.

Cp is our cost price.

We know,

Selling Price - Cost price = Profit = Profit * Cost Price

So,

SP = (1+P/100)CP.

7 0

2 years ago

Identify the constant of proportionality from the graph. PLEASE HELP AND HURRY!!

geniusboy [140]

The answer is D

Have you ever heard of rise over run rise/run
Y/x. Well in this case the run is One with a rise of four

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3 years ago

Please i need help it is due at 9

zhenek [66]

Answer:

I believe the answer is C

Step-by-step explanation:

Here's why:

83 are in service.

69 out of the 83 have a working radio.

The percentage of buses ready for service that have a working radio is therefore 69/83 = .831325301 * 100% = 83.1325301%.

6 0

3 years ago

Read 2 more answers

True or False: A race car driver tested his car for time from 0 to 60 mph, and for 20 tests obtained a mean of 4.85 seconds with

sattari [20]

Answer:

The given statement is false.

Step-by-step explanation:

We are given the following in the question:

95% confidence interval: (4.53,5.18)

Sample mean, $\bar{x}$ = 4.85 seconds

Sample size, n = 20

Alpha, α = 0.05

Sample standard deviation, σ = 1.47 seconds

Degree of freedom = n - 1 = 19

95% Confidence interval:

$\bar{x} \pm t_{critical}\displaystyle\frac{s}{\sqrt{n}}$

Putting the values, we get,

$t_{critical}\text{ at degree of freedom 4 and}~\alpha_{0.01} = \pm 2.09$

$4.85 \pm 2.09(\dfrac{ 1.47}{\sqrt{20}} )\\\\ = 4.85 \pm 0.69 \\\\= (4.16 ,5.54)$

Thus, the calculated confidence interval is different from the given confidence interval.

Hence, the given statement is false.

6 0

3 years ago

The two-way table of column relative frequencies below shows data on whether or not a person has internet access and their prefe

BabaBlast [244]

Answer: c

Step-by-step explanation: 54% of people with internet access prefer text messaging, while only 31% of people without internet access prefer text messaging.

6 0

3 years ago