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3 years ago

Which of the quadratic functions has the narrowest graph?

Mathematics

1 answer:

torisob [31]3 years ago

6 0

D cause if u graph it each point it moved up but on the x axis it stays the same which makes it narrower

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Find the slope of the line that passes through (7, 71) and (-100, -1)

tresset_1 [31]

Answer:

72/107

Step-by-step explanation:

We can use the slope formula

m = (y2-y1)/(x2-x1)

= (-1 -71)/(-100-7)

= -72/-107

= 72/107

6 0

3 years ago

“Use the graph or table to write a linear function that relates y to x”

Igoryamba

Answer:

8)y=2x-3

9)y= -1/2+4

Step-by-step explanation:

5 0

3 years ago

What is the height of a cone when the radius is 4 and the volume is 32

Lerok [7]

Answer:

1.9099

Step-by-step explanation:

V = (PI) * r^2 * (h/3)

32 = (PI) * (16) * (h/3)

6/PI = h

1.9099 = h

7 0

3 years ago

Read 2 more answers

Suppose the number of residents within five miles of each of your stores is asymmetrically distributed with a mean of 25 thousan

ohaa [14]

Answer:

$P(\bar X\:>27.8\:thousand)=3.07\%$

Step-by-step explanation:

Since the number of residents within five miles of each of your stores is asymmetrically distributed, the distribution of the sample means will be approximately normal with a mean of 25 thousand.

The standard deviation of the sample means is:

$\sigma_X=\frac{\sigma}{\sqrt{n} }$

$\implies \sigma_X=\frac{10.6}{\sqrt{50} }=1.4991$

The z value is $z=\frac{\bar X-\mu}{\frac{\sigma}{\sqrt{n}} }$

We plug in the values to get:

$z=\frac{27.8-25}{1.4991}=\frac{2.8}{1.4991}=1.87$

The area to the right of 1.87 is $1-0.96926=0.03074$ .

The probability that the average number of residents within five miles of each store in a sample of 50 stores will be more than 27.8 thousand is 3.07%

See attachment.

6 0

4 years ago

Perfume is sold in two different sizes of bottle. The 80ml bottle is priced at £55. The 50ml bottle is usually priced at £45, bu

Nadya [2.5K]

1ml of 80ml bottle: 55/80 = 0.6875 pence

1ml of 50ml bottle: 45/50 = 0.9 pence

If no special offer the first bottle is a better value for money.

Since special offer though, you'd be buying;

50ml bottle £45 + another 50ml £22.5 = £67.5 in

which case 1ml would cost;

67.5/100 = 0.675 pence. Hence buying 2x50ml

bottle would be a better value.

8 0

4 years ago