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stira [4]
3 years ago
6

A circle has an area of 49 cm^2. how do I find the circumference?

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

Answer:

28.81cm

Step-by-step explanation:

c=2TTy

You might be interested in
Mr. Mandel gave his class 12 minutes to read. 5 1/2 pages in that time. At what rate, in pages per hour, did Claire read?
Eva8 [605]
5 1/2 pages in 12 minutes.
11/2 pages in 12 minutes 

How many pages in an hour?
well, an hour has 60 minutes

Let's write a proportion
11/2 / 12 = x/60
cross multiply
(11/2 * 60) = 12x
330 = 12x
divide both sides by 12
27.5 or 27 1/2 = x

27.5 pages per hour.

Hope this helps
8 0
3 years ago
Pls answer this, it is really hard, I will give 40 points to whoever solves this. 72÷x=3.6÷0.015
lyudmila [28]

Answer:

x = 3

Step-by-step explanation:

72 \div x = 3.6 \div 0.015\\\\\frac{72}{x} = \frac{3.6}{0.015}\\\\

Cross multiply and reduce to lowest possible terms

\frac{72}{x} = \frac{3.6}{0.015}\\\\x = \frac{72 \times 0.015}{3.6}\\\\x = \frac{72 \times 15}{360}\\\\x = \frac{72 \times 5}{120}

(Reduced 15 and 360 by 3)

x = \frac{3 \times 5}{5}

(Reduced 72 and 120 by 24)

x = 3

(cancelled out 5 in both numerator and denominator)

8 0
4 years ago
Read 2 more answers
-8'den buyuk en kucuk tam sayi ile 9'dan kucuk en buyuk tam sayinin toplami kactir?
Inessa [10]

Answer:

1

Step-by-step explanation:

-7 + 8 = 1

5 0
3 years ago
The track team won a total of 18 medals. Three of the medals were gold. There were twice as many bronze medals as silver medals.
monitta
10 bronze medals

explaining:
if 3 of the medals were gold there would be 15 left. Since there was twice as many bronze from silver they would have 5 silver medals and 10 bronze.
4 0
3 years ago
You are interested in the psychological implications of high SES. You read a paper that claims that higher social class people b
dimaraw [331]

Answer:

Option C. The real effect is 0.1

Step-by-step explanation:

The complete question is  

You are interested in the psychological implications of high SES. You read a paper that claims that higher social class people behave more unethically. The paper reports a significant difference in the propensity of high and low SES people behaving unethically. The significance level of this study was 0.05, the ratio of true to false effects in this field is 0.35, but the author was anxious to issue a press release and prepare his TED talk, so power is low, at 0.1. The probability that this study reports a real effect is

A. 0.58

B. 0.95

C. 0.1

D. 0.35

E. 0.41

Solution

Ratio of true to false effects i.e T/F = 0.35  

The power of the study indicates the real effect of the study and hence despite the true/false ration being 0.35 and the significance level of study is 0.05, the real effect of the study would be 0.1

Hence option C is correct

8 0
3 years ago
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