3 years ago

What is the length of segment XY?

Mathematics

2 answers:

omeli [17]3 years ago

7 0

root of 54

Step-by-step explanation:

Nadya [2.5K]3 years ago

6 0

Answer:

4.5

Step-by-step explanation:

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I have to find all the solutions to 9|x+1|-6<-42

Amanda [17]

bearing in mind that an absolute value expression is in effect a piece-wise expression, since it has a positive and a negative sibling.

$\bf 9|x+1|-6$

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3 years ago

For a language test with normally distriuted scores, the mean was 70 and the standard deviation was 10. Approximately what perce

Alborosie

Answer: 84.13%

Step-by-step explanation:

Given : The scores in a a language test with normally distributed.

Mean : $\mu=70$

Standard deviation: $\sigma= 10$

Let x be the random variable that represents the scores of students.

Formula for z-score: $z=\dfrac{x-\mu}{\sigma}$

For x= 60 , we have

$z=\dfrac{60-70}{10}=-1$

The probability f test takers scored a 60 or above :-

$P(x\geq60)=P(\geq-1)=1-P(z$

Hence, the percentage of test takers scored a 60 or above = 84.13%

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4 years ago

GUYS PLEASE HELP WITH MY MWTH TEST

OleMash [197]

Answer:

sinθ = 5/13

cosθ = 12/13

tanθ = 5/12

Step-by-step explanation:

Get the remaining side(hypotenuse) first,

hypotenuse^2 = 12^2 + 5^2 (Pyth. theorem)

hypotenuse = 13

sinθ = 5/13

cosθ = 12/13

tanθ = 5/12

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3 years ago

Name the ray in the figure.<br> <—•A———————•B

Scilla [17]

Answer:

Ray BA

Step-by-step explanation:

RAY BA

B IS THE POINT OF EMERGENCE OF RAY AND GOING IN THE DIRECTION BA.

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3 years ago

Sylvester measured his pulse and found that his heart beat at a rate of 80 beats a minute at rest. At this rate how many days wi

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1,000,000/ 80 is the answer

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3 years ago

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