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3 years ago

Is (1, -2) a solution of the graphed inequality?

Mathematics

2 answers:

jeyben [28]3 years ago

7 0

Answer:

No, it is not it is a coordinate point

A graphed inequality x<8 that example

Step-by-step explanation:

zlopas [31]3 years ago

4 0

Answer:

Please attach the graph, and I will edit the answer.

Step-by-step explanation:

Thanks.

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The sales tax on a $350 computer is $22.75.Find the sales tax rate.

Maru [420]

22.75/350=0.065
0.065=6.5%
Sales tax= 6.5%

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4 years ago

Which expression is equivalent to -51 - (-60)?

zzz [600]

Answer:

The answer is 9.

Step-by-step explanation:

I had the question on one of my quizzes.

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3 years ago

A semicircular window with a RADIUS OF 20 inches is going to be laminated with a sunblock coating that costs 1.50 PER SQUARE INC

yan [13]

Answer:

B:942$

Step-by-step explanation:

(pi*20^2)/2 is approximately 628.32

628.32*1.5=942.48

3 0

2 years ago

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Jason inherited a piece of land from his great-uncle. Owners in the area claim that there is a 45% chance that the land has oil.

oksian1 [2.3K]

Answer:

0.36 = 36% probability that the land has oil and the test predicts it

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

$P(B|A) = \frac{P(A \cap B)}{P(A)}$

In which

P(B|A) is the probability of event B happening, given that A happened.

$P(A \cap B)$ is the probability of both A and B happening.

P(A) is the probability of A happening.

45% chance that the land has oil.

This means that $P(A) = 0.45$

He buys a kit that claims to have an 80% accuracy rate of indicating oil in the soil.

This means that $P(B|A) = 0.8$

What is the probability that the land has oil and the test predicts it?

This is $P(A \cap B)$ . So

$P(B|A) = \frac{P(A \cap B)}{P(A)}$

$P(B \cap A) = P(B|A)*P(A) = 0.8*0.45 = 0.36$

0.36 = 36% probability that the land has oil and the test predicts it

5 0

3 years ago

Parallel lines intersect at an angle of 90. A. True B. False

Lisa [10]

False because there are no parrelell lines

8 0

3 years ago

Read 2 more answers