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Keith_Richards [23]

3 years ago

10

Omg please answer i am so lost

1 answer:

Soloha48 [4]3 years ago

5 0

A

Because X isn’t repeated in W but there are repeats in the others.

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Mariulka [41]

Step-by-step explanation:

A rational number can be written as a ratio a/b, where a & b are integers & b \neq 0. Rational numbers are terminating or repeating. The radical sign means "the positive square root of."

Example:

√144 = "the square root of 144" but indicates the positive square root of 144, which is 12

Hope this helps!!! :)

5 0

4 years ago

Read 2 more answers

A pretzel company calculated that there is a mean of 73.5 broken pretzels in each production run with a standard deviation of 5.

SVEN [57.7K]

Answer:

0.1894 = 18.94% probability that there will be fewer than 69 broken pretzels in a run.

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 z-score 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 p-value, we get the probability that the value of the measure is greater than X.

A pretzel company calculated that there is a mean of 73.5 broken pretzels in each production run with a standard deviation of 5.1.

This means that $\mu = 73.5, \sigma = 5.1$

Find the probability that there will be fewer than 69 broken pretzels in a run.

This is the p-value of Z when X = 69.

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

$Z = \frac{69 - 73.5}{5.1}$

$Z = -0.88$

$Z = -0.88$ has a p-value of 0.1894

0.1894 = 18.94% probability that there will be fewer than 69 broken pretzels in a run.

3 0

3 years ago

A worker is paid $9.80 per hour, with time and a half for any hours over 40 per week. If he works 44 hours in a week, what will

VladimirAG [237]

A.450.80

Multiply 40x9.80=392

Take 1/2 of 9.80 that equal 4.90
4.90 plus 9.80 $14.70x4=58.80
$58.80 plus 392 equals 450.80

6 0

4 years ago

Read 2 more answers

Jamie ran a total distance of 6 and 1 over 2 miles during the months of March and April. If Jamie only ran 1 over 6 mile every d

otez555 [7]

Given:

Total distance covered by Jamie = $6\dfrac{1}{2}$ miles

She ran every day = $\dfrac{1}{6}$ miles

To find:

The number of days in which she go for running.

Solution:

Total distance covered by Jamie $=6\dfrac{1}{2}$ miles

$=\dfrac{6\times 2+1}{2}$ miles

$=\dfrac{12+1}{2}$ miles

$=\dfrac{13}{2}$ miles

She ran every day = $\dfrac{1}{6}$ miles

Now,

$\text{Required number of days}=\dfrac{\text{Total distance covered}}{\text{Distance covered each day}}$

$\text{Required number of days}=\dfrac{\dfrac{13}{2}}{\dfrac{1}{6}}$

$\text{Required number of days}=\dfrac{13}{2}\times \dfrac{6}{1}$

$\text{Required number of days}=39$

Therefore, the required number of days is 39.

6 0

3 years ago

Someone help me please

nlexa [21]

Answer:

(x + 10)(2x + 5)

Step-by-step explanation:

Given

2x² + 25x + 50

Consider the factors of the product of the coefficient of the x² term and the constant term (ac) which sum to give the coefficient of the x- term (b)

ac = 2 × 50 = 100 and b = 25

The factors are + 20 and + 5

Use these factors to split the x- term

2x² + 20x + 5x + 50 ( factor the first/second and third/fourth terms )

= 2x(x + 10) + 5(x + 10) ← factor out (x + 10) from each term

= (x + 10)(2x + 5)

5 0

3 years ago