2 years ago

Point O is the center of this circle. What is m CAB? A.55 B.48 C.45 D.35

Mathematics

1 answer:

Sophie [7]2 years ago

3 0

Answer is B. 48

By circle theorem, the angle at the centre of the circle is twice the angle at the circumference.

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Find the percent of decrease from 280 to 210. Round to the nearest tenth of a percent, if necessary.

Vlada [557]

To find the decreased percentage,here's what we can do:
$\frac{originl \: value - new \: value}{originl \: value} \times 100\%$

In this case,the eqaution would be:
$\frac{280 - 210}{280} \times 100\% \\ = \frac{70}{280} \times 100\% \\ = \frac{1}{4} \times 100\% \\ = 25\%$
Hope it helps!

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3 years ago

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Step-by-step explanation:

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vodka [1.7K]

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3 years ago

On a test that has a normal distribution, a score of 32 falls three standard

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Answer:

Mean = 62

Step-by-step explanation:

X = mean ± sd

82 = mean + 2(s.d) - - (1)

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82 = mean + 2sd

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sd = 50/5

sd = 10

From (2):

32 = mean - 3sd

32 = mean - 3(10)

32 = mean - 30

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3 years ago

a merchant gains 15% by selling an article for $ 150. by how much does he sell it to double his profit ?

viva [34]

Answer:

30/100×150=

24/5%, that is the answer

8 0

3 years ago

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