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3 years ago

How to tell if angles are complementary s

1 answer:

8 0

Complementary triangle angles add up to 90 degrees.
It's easy to remember because the C in complementary is the C in corner, they make a perfect corner.

Supplementary triangle angles add up to 180 degrees.
It's easy to remember because the S is supplementary is the S in straight line, they make a straight line.

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Solve for y y + 7 = 9

Dmitriy789 [7]

Answer:

y = 2

Step-by-step explanation:

Given

y + 7 = 9 ( subtract 7 from both sides )

y = 2

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3 years ago

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the circle graph represents a family's monthly budget. if the total monthly budget is $5,000, how much does the family spend on

Vesnalui [34]

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KEYNA EXCHANGES $150 FOR BRITISH POUNDS. SUPPOSE THE CONVERSION RATE IS = $1.60. HOW MANY POUNDS SHOULD SHE RECEIVE

nydimaria [60]

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3 years ago

Jonah can bike 27.2 kilometers in 1 hour. At that rate, how many kilometers can he bike in 15 minutes?

Wittaler [7]

Answer:6.79999

Step-by-step explanation:

27.2 divided by 60 times 15

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2 years ago

Jankord Jewelers permits the return of their diamond wedding rings, provided the return occurs within two weeks. Typically, 10 p

dimulka [17.4K]

Answer:

$P(X$ $0.9619$

Step-by-step explanation:

From the given information;

the probability of getting returned p = 0.1

If eight rings are sold today, what is the probability that fewer than three will be returned;

According to binomial distribution

Binomial distribution is the probability of success or failure of an outcome of an experiment under observation which is usually repeated several trials. Binomial experiments are random experiment with fixed number of repeated experiment. If we cannot predict before head, the outcome of an experiment , the experiment is called a random experiment.

So , using binomial distribution to determine the probability that fewer than three will be returned;

i.e

$P(X$ $\sum_{x=0}^{2}\binom{8}{x}(0.1)^{x}(1-0.1)^{8-x}$

$P(X$ $0.9619$

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3 years ago