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3 years ago

What are all the prime and composite factors of 45

Mathematics

1 answer:

Helen [10]3 years ago

3 0

I may not know many but here it goes...
1,3,5,9,45

Hope this helped you!

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Assume that a demand equation is giben by q = 7000-100p. Find the marginal revenue for the given production levels (levels of q)

nata0808 [166]

Answer:

Option B.

Step-by-step explanation:

The demand function is

$q=7000-100p$

where p is price.

Solve the demand equation for p.

$100p=7000-q$

$p=\dfrac{7000-q}{100}$

The revenue function is

$R(q)=qp$

Substitute the value of p in the above function.

$R(q)=q(\dfrac{7000-q}{100})$

$R(q)=\dfrac{7000q-q^2}{100}$

Differentiate with respect to q.

$R'(q)=\dfrac{7000-2q}{100}$

Equate R'(q)=0,

$\dfrac{7000-2q}{100}=0$

$7000=2q$

Divide both sides by 2.

$3500=q$

Therefore, the correct option is B.

4 0

3 years ago

If r = 9,6 = 5, and g = -6, what does (r+b-9) (b+g) equal?

devlian [24]

Answer:

-5

Explanation:

First, expand.

r + b - 9 × b + g.

If r = 9, b = 5, and g = -6, this would be the answer:

9(r) + 5(b) - 9 = 5

5(b) + -6(g) = -1

5 × -1 = -5

6 0

2 years ago

A jacket was on sale for 20% off its original price of $60. Now, it is on sale for an additional 10% off its previous sale price

Rom4ik [11]

Answer:

Step-by-step explanation:

Step one:

given

original price= $60

discount =20% of 60

discount = 20/100*60

discount = 0.2*60

discount = $12

selling price= 60-12= $48

Added price= 10% off $48

Added price= 10/100 *48

Added price= 0.1 *48

Added price= $4.8

new price= 4.8-48=$43.2

the new price of the jacket is $43.2

1. The jacket is now 40% off its original price

40/100*60=$24-----False

2. The jacket now costs $48.00-----False

3. The jacket is now 72% of its original price= 72/100*60=$43.2----True

4. The jacket now costs $43.20------True

5 0

3 years ago

I rlly need help with this :(

kobusy [5.1K]

Using the normal distribution, it is found that:

a) The pilot is at the 72th percentile.

b) 19.13% of pilots are unable to fly.

<h3>Normal Probability Distribution</h3>

The z-score of a measure X of a normally distributed variable with mean $\mu$ and standard deviation $\sigma$ is given by:

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

The z-score measures how many standard deviations the measure is above or below the mean.

Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X.

The mean and the standard deviation are given, respectively, by:

$\mu = 72.6, \sigma = 2.7$ .

Item a:

The percentile is the <u>p-value of Z when X = 74.2</u>, hence:

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

$Z = \frac{74.2 - 72.6}{2.7}$

Z = 0.59

Z = 0.59 has a p-value of 0.7224.

72th percentile.

Item b:

The proportion that is able to fly is the <u>p-value of Z when X = 78 subtracted by the p-value of Z when X = 70</u>, hence:

X = 78:

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

$Z = \frac{78 - 72.6}{2.7}$

Z = 2

Z = 2 has a p-value of 0.9772.

X = 70:

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

$Z = \frac{70 - 72.6}{2.7}$

Z = -0.96

Z = -0.96 has a p-value of 0.1685.

0.9772 - 0.1685 = 0.8087 = 80.87%.

Hence the percentage that is unable to fly is:

100 - 80.87 = 19.13%.

More can be learned about the normal distribution at brainly.com/question/4079902

#SPJ1

3 0

2 years ago

1. Mitch needs to do his laundry. It takes him 75 minutes to do each load when he washes and dries the load. It takes him 43 les

NARA [144]

not sure if this is correct but 1. A ( reasoning: "Hint: Mitch has to do the opposite of subtract 43 to both sides." which means he had to add. 2. She can get no more than 4

5 0

3 years ago