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3 years ago

Does anyone know how to to explain slope in a easy way

1 answer:

5 0

When you are given two points of a line, you can find the slope of the line.

Let's say that the two points we are given is $\sf(x_1,y_1) ~and ~(x_2,y_2)$ , then the slope is:

$\bf{Slope = \frac{y_2-y_1}{x_2-x_1}$

Another thing to keep in mind:

When you have 0 in the numerator, and a number in the denominator, that means that the slope is 0.
When you have 0 in the denominator, and a number in the numerator, that means that there is no slope, or that the slope is undefined.

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Suppose the shipping weight of your cheese shop's customized gift baskets is asymmetrically distributed with unknown mean and st

Anuta_ua [19.1K]

The lower bound of the 90% confidence interval for the gift basket's average shipping weight is 55.605.

Given mean weight of 57 ounces ,sample size 70 ,confidence level 90% and standard deviation of 7.1 ounces.

We have to find the lower bound of the confidence interval for the gift's basket's avrage shipping weight.

We can easily find the confidence interval and its lower bound through theformula of margin of error.

Margin of error is the difference between real values and calculated values.

Margin of error=z*σ/ $\sqrt{n}$

where z is the critical value of confidence level

σ is standard deviation,

n is the sample size

We have to first find the z value for 90% confidence level which is 1.645.

Margin of error=1.645*7.1/ $\sqrt{70}$

=11.6795/8.3666

=1.395

Lower bound of the confidence interval = Mean - margin of error

=57-1.395

=55.605.

Hence the lower bound of the confidence interval for the gift basket's average shipping weight is 55.605.

Learn more about margin of error at brainly.com/question/10218601

#SPJ4

3 0

2 years ago

In the summer of 2014, the average listing price for homes for sale in the Hollywood Hills was $2,663,995.

Wewaii [24]

Answer:

monthly payment: $15,903.61
interest: $2,368,664.10

Step-by-step explanation:

a) The loan amount is 90% of the price shown, so is ...

0.90 × $2,663,995 = $2,397,595.50

The monthly loan payment is given by the amortization formula:

A = P(r/12)/(1 -(1 +r/12)^(-12t))

A = $2,397,595.50(0.0525/12)/(1 -(1 +0.0525/12)^(-12·30))

A = $13,239.61

The monthly escrow payment will be 1/12 of the annual amount:

0.012 × $2,663,995 / 12 = $2664.00

So, the total monthly payment on the house will be ...

$13,239.61 +2664.00 = $15,903.61

b) The sum of monthly loan payments is ...

$13,239.61 × 360 = $4,766,259.60

so the interest on the $2,397,595.50 loan is ...

$4,766,259.60 -2,397,595.50 = $2,368,664.10

7 0

4 years ago

Solve for x algebra help

mafiozo [28]

Answer:

x=24

Step-by-step explanation:

Hi there!

We are given the following proportion:

$\frac{2}{10}=\frac{3}{x-9}$

And we want to solve for x.

First, let's reduce $\frac{2}{10}$ , as reducing fractions typically makes the process easier

$\frac{2}{10}$ is the same as $\frac{1}{5}$

So:

$\frac{1}{5}=\frac{3}{x-9}$

We can't do anything to $\frac{3}{x-9}$ , but that's okay.

Now we can cross multiply, as this is a proportion

Multiply x-9 by 1 and 3 by 5

1(x-9)=3(5)

Multiply

x-9=15

Now this is an equation

Our goal is to isolate x on one side

So let's add 9 to both sides to remove it from the left side

x-9=15

+9 +9

_________

x=24

Hope this helps!

7 0

3 years ago

Read 2 more answers

70 POINTS PLEASE HELP! A dump truck pours sand into a container in the shape of a rectangular prism with a square base of length

galina1969 [7]

Answer:

Step-by-step explanation:

The volume of a rectangular prism is:

$V=\ell wh$

Since the prism has a square base, each side length being 2, this means that both the length and width of our prism is 2. Therefore:

$V=(2)(2)h=4h$

So, we can write:

$V=4h$

The height h increases at a rate of about 8 inches or 8/12 = 2/3 feet per minute.

So, after t minutes, the height will be 2/3(t) feet. Thus, we can substitute:

$\displaystyle V=4\Big(\frac{2}{3}\Big)t=\frac{8}{3}t$

We want to find after how long it will be until the volume is 64 cubic feet. So, V = 64:

$\displaystyle 64 = \frac{8}{3} t$

Solve for t:

$\displaystyle t=\frac{3}{8}(64)=3(8)=24\text{ minutes}$

The correct answer is A.

3 0

3 years ago

Read 2 more answers

Does all rhombuses have 2 pairs of parallel sides?

attashe74 [19]

Yes, all of the rhombuses have 2 pairs of parallel side.

4 0

3 years ago