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4 years ago

How do i figure out the last problems 5 and 3?

Mathematics

1 answer:

Delvig [45]4 years ago

4 0

For 3, you need to graph the equation of the line: y = -150x + 1800

What you can do is plot the x-intercept and y-intercept and then draw a straight line between them.

The y-intercept is (0,1800) because if you purchase zero shoes, you will have all $1800 left over.

The x-intercept is (12,0) because if you purchase 12 shoes, you will have zero dollars left over.

So plot (0,1800) and (12,0) for problem #3.

Problem #5, I already answered above. The x-intercept tells you how many shoes you can buy if you spend all your money (12 pair of shoes).

You might be interested in

After an extensive advertising campaign, the manager of a company expects the proportion of potential customers that recognize a

lina2011 [118]

Answer:

Step-by-step explanation:

Hello!

The study variable is:

X: number of customers that recognize a new product out of 120.

There are two possible recordable outcomes for this variable, the customer can either "recognize the new product" or " don't recognize the new product". The number of trials is fixed, assuming that each customer is independent of the others and the probability of success is the same for all customers, p= 0.6, then we can say this variable has a binomial distribution.

The sample proportion obtained is:

p'= 54/120= 0.45

Considering that the sample size is large enough (n≥30) you can apply the Central Limit Theorem and approximate the distribution of the sample proportion to normal: p' ≈ N(p; $\sqrt{\frac{p(1-p)}{n} }$ )

The other conditions for this approximation are also met: (n*p)≥5 and (n*q)≥5

The probability of getting the calculated sample proportion, or lower is:

P(X≤0.45)= P(Z≤ $\frac{0.45-0.6}{\sqrt{\frac{0.6*0.4}{120} } }$ )= P(Z≤-3.35)= 0.000

This type of problem is for the sample proportion.

I hope this helps!

5 0

3 years ago

I need help ASAP plz

Mice21 [21]

A or C cause they both have the same equation that start from a + but descend down to a -

5 0

4 years ago

Help me sir I would appreciate it

mr_godi [17]

Answer:

Negative Correlation

Step-by-step explanation:

4 0

3 years ago

Graph the quadratic functions y=-2xandy=-2x2 + 4 on a separate piece of paper. Using those graphs, compare and contrast the shap

dedylja [7]

Y = -2x^2

h = Xv = -B/2A = 0/-4 = 0.

k = -2*0^2 = 0.

V(0,0).

Use the following points for graphing:

Y = -2x^2.

(x,y)

(-2,-8)

(-1,-2)

V(0,0)

(1,-2)

(2,-8)

Y = -2x^2 + 4.

h = Xv = -B/2A = 0/-4 = 0.

k = Yv = -2*0^2 + 4 = 4.

V(0,4).

(-2,-4)

(-1,2)

V(0,4)

(1,2)

(2,-4)

8 0

3 years ago

Write an equation in point-slope form and slope-intercept form for each line.

Kobotan [32]

A: Slope-intercept form: y = 2 x − 1 Point-slope form: y − 7 = 2 ⋅ ( x − 4 )

B: Slope-intercept form: y = 4 x + 7 Point-slope form: y + 1 = 4 ⋅ ( x + 2 )

C: Slope-intercept form: y = 1/2 x − 8 Point-slope form: y + 4 = 1/2 ⋅ ( x − 8 )

7 0

3 years ago