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3 years ago

One-fifth divided by 8 equals

Mathematics

2 answers:

yanalaym [24]3 years ago

6 0

It is a decimal number so begin the decimal point .625 ... Good luck

VMariaS [17]3 years ago

5 0

Multiply the denominator by what you're dividing.

In this case we take the denominator of 1/5 (5) and times it by 8.

Me rearrange the product to the denominator and get...

1/40

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3 years ago

Find all zeros of the polynomial function b(x)=x3-4x2-3x+12

Nadya [2.5K]

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3 years ago

5+(-13)=???? ??????????

chubhunter [2.5K]

Answer:

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Step-by-step explanation:

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3 years ago

Read 2 more answers

Jiffy Mix in Chelsea, Michigan has a machine that fills the Jiffy Corn Muffin Mix boxes with Mix. It dispenses corn muffin mix w

gregori [183]

Answer:

(b) The middle 68% of Jiffy Corn Muffin Mix boxes contain between 9.90 ounces and 10.10 ounces of corn muffin mix.

(c) The percentage of Jiffy Corn Muffin Mix boxes containing more than 10.3 ounces or less than 9.7 ounces of corn muffin mix is 16%.

(d) The percentage of iffy Corn Muffin Mix boxes containing more than 10.2 ounces of corn muffin mix is 2.3%.

(e) The percentage of Jiffy Corn Muffin Mix boxes containing less than 10.1 ounces of corn muffin mix is 84%.

Step-by-step explanation:

Let the random variable X be defined as the amount of corn muffin mix in a Jiffy Corn Muffin Mix box.

The random variable X follows a Normal distribution with mean, μ = 10.0 ounces and standard deviation, σ = 0.10 ounces.

(b)

According to the Empirical rule, 68% of the data from a Normal distribution lies within one standard deviation of mean.

That is:

P (x₁ < X < x₂) = 0.68

P (μ - σ < Z < μ + σ) = 0.68

Then,

P (10.0 - 0.10 < Z < 10.0 + 0.10) = 0.68

P (9.90 < Z < 10.10) = 0.68

Thus, the middle 68% of Jiffy Corn Muffin Mix boxes contain between 9.90 ounces and 10.10 ounces of corn muffin mix.

(c)

Compute the probability that Jiffy Corn Muffin Mix boxes contain more than 10.3 ounces or less than 9.7 ounces of corn muffin mix as follows:

P (X > 10.3 ∪ X < 9.7) = 1 - P (9.7 < X < 10.3)

$=1-P(\frac{9.7-10.0}{0.10}$

Thus, the percentage of Jiffy Corn Muffin Mix boxes containing more than 10.3 ounces or less than 9.7 ounces of corn muffin mix is 16%.

(d)

Compute the probability of Jiffy Corn Muffin Mix boxes contain more than 10.2 ounces of corn muffin mix as follows:

$P(X>10.2)=P(\frac{X-\mu}{\sigma}>\frac{10.20-10.0}{0.10})$

$=P(Z>2)\\=1-P(Z$

Thus, the percentage of iffy Corn Muffin Mix boxes containing more than 10.2 ounces of corn muffin mix is 2.3%.

(e)

Compute the probability that a randomly selected Jiffy Corn Muffin Mix box contains less than 10.1 ounces of corn muffin mix as follows:

$P(X$

$=P(Z$

Thus, the percentage of Jiffy Corn Muffin Mix boxes containing less than 10.1 ounces of corn muffin mix is 84%.

3 0

3 years ago

How do you factor xsquared+2x-63 into two binomials

rjkz [21]

X^2+2x-63
(x+9)(x-7)

since x is squared, you immediately know that it multiples itself. (x)(x) is x^2. I used the FOIL method where you do first, outside, inside, last. so the first amount in each parentheses is a x and a x. that equals x^2. then the outside numbers are 7 and a x. That equals-7x. on the inside, I have +9 and x. that is +9x. Lastly, a -9 and -7 is -63. When written out in a number sentence, and combine like terms, you will get your original answer so (x+9)(x-7) is the factored form

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3 years ago