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3 years ago

What is the value of x?

Mathematics

1 answer:

Rashid [163]3 years ago

7 0

Answer:

X=98°

Step-by-step explanation:

53° + 45° = 98

98-180= 82

every triangle is always equal o 180°

so... 53°+ 45°+ 82° = 180

to find x you need to subtract 82 from 180 which is 98

<em>remember its important to find the inner degree before the outer.</em>

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Find the zeros of the function f(x) = -1.6x2 + 18x – 47 to the nearest<br> hundredth.

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Answer:

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3 years ago

The average life of individual is 70 years. With a standard deviation of 5.5 years. Assume that the lives of these individuals i

Harlamova29_29 [7]

Answer:

The answer is below

Step-by-step explanation:

Given that:

mean (μ) = 70 years, standard deviation (σ)= 5.5 years.

a) The z score measures how many standard deviation a raw score is above or below the mean. It is given as:

$z=\frac{x-\mu}{\sigma}$ , for a sample size of n, the z score is: $z=\frac{x-\mu}{\sigma/\sqrt{n} }$

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$z=\frac{x-\mu}{\sigma/\sqrt{n} }=\frac{60-70}{5.5/\sqrt{5} } =-4.07$

For x = 80:

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The probability that a mean life of a random sample of 5 such turtles falls between 60 and 80 years = P(60 < x < 80) = P(-4.07 < z < 4.07) = P(z < 4.07) - P(z < -4.07) = 1 - 0 = 1 = 100%

b) The z score that corresponds to top 10% is -1.28.

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3 years ago

How many times does 11 go into -435 pls dont cheat

hodyreva [135]

If you do 435 divided by 11, your answer would be the amount which is not a whole number, it’s 39.5454 and goes on.

but since you said NEGATIVE 435, 11 can’t go into that negative so it’ll be zero.

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3 years ago

Read 2 more answers

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Answer:

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Step-by-step explanation:

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