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3 years ago

Can I solve i dunno it :)

Mathematics

2 answers:

SVETLANKA909090 [29]3 years ago

5 0

How Long Is The Book?

550 pages.

Its 550 pages, because if you know that he reads 55 pages an hour, then you can multiply the number of pages her reads in an hour by 4 hours. That's 220. Then he will still need 330, just add them together and you will get 550.

How Long Did It Take Naoya to read the entire book?

10 hours.

You know it takes him 4 hours to read 220, and you also know there's 550 pages. And you also know, he can only read 55 pages an hour, so just divide 550 ÷ 55.

MatroZZZ [7]3 years ago

3 0

1. 550 pages left

55×4=220+330=550

2. 10 hours

330÷55=6+4=10

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A grain of rice average weight is about 25 milligrams or 0.025 grams. Which of the following shows the weight in grams in scient

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Answer:

2.5x10⁻2

Step-by-step explanation:

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3 years ago

bob and Cheryl are taking a road trip that is 189.80 miles. Bob drove 3/4 of the total distance.How many miles did Bob drive?

Tom [10]

142.35 miles. Just multiply 189.80 by 3/4 (or .75).

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3 years ago

What are correct statements about the function f(x) = (x+3)(2x-4)(x+3)(2x-1)

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3 years ago

5. X is a normally distributed random variable with a mean of 8 and a standard deviation of 4. This can be written as N(8,4). Th

xz_007 [3.2K]

Answer:

The probability that X is between 1.48 and 15.56 is $P(1.48 \leq X \leq 15.56) = 0.919$

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

X is a normally distributed random variable with a mean of 8 and a standard deviation of 4.

This means that $\mu = 8, \sigma = 4$

The probability that X is between 1.48 and 15.56

This is the pvalue of Z when X = 15.56 subtracted by the pvalue of Z when X = 1.48. So

X = 15.56

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{15.56 - 8}{4}$

$Z = 1.89$

$Z = 1.89$ has a pvalue of 0.9706

X = 1.48

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{1.48 - 8}{4}$

$Z = -1.63$

$Z = -1.63$ has a pvalue of 0.0516

0.9706 - 0.0516 = 0.919

Write out the probability notation for this question.

$P(1.48 \leq X \leq 15.56) = 0.919$

The probability that X is between 1.48 and 15.56 is $P(1.48 \leq X \leq 15.56) = 0.919$

5 0

3 years ago

The ratio of the one leg of

Llana [10]

The legs of the triangle are 6.91 feet, 7.9 feet, and 10.5 feet.

<h3>What is a Pythagoras theorem?</h3>

The Pythagoras theorem states that the sum of two squares equals the squared of the longest side.

The Pythagoras theorem formula is given as

H² = P² + B²

The ratio of the one leg of the right triangle to the other leg of the right triangle must be 8:7.

Let x be one leg and y be another leg. Then we have

x/y = 8/7

y = 7x/8

Then the greatest length of one leg of the right triangle given the other leg of the right triangle is 10.5 feet will be

10.5² = x² + (7x/8)²

110.25 = x² + 49x²/64

110.25 = 113x²/64

x² = 62.44

x = 7.902

x ≅ 7.9 feet

Then the other leg will be

y = 7.9 x 7 / 8

y = 6.91

More about the Pythagoras theorem link is given below.

brainly.com/question/343682

#SPJ1

7 0

2 years ago

Can I solve i dunno it :)​

Can I solve i dunno it :)