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3 years ago

13/20 in 1/60 of a mile is how much in an hour

Mathematics

1 answer:

Vera_Pavlovna [14]3 years ago

7 0

39 miles if how far it flys in a hour

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The dotplot shows the heights of 25 students in Mrs. Navard’s statistics class.

Zolol [24]

Answer:

A)Percentile for Lynette, the student who is 65 in. tall is 36th

B) Asher is 22 inches tall.

Step-by-step explanation:

Percentile : It is a measure used in statistics indicating the value below which a given percentage of observations in a group of observations falls

A) Find the Percentile for Lynette, the student who is 65 in. tall.

No. of students below 65 inch =9

So, Percentage of data below 65 inch = $\frac{9}{25} \times 100 = 36 \%$

So, Percentile for Lynette, the student who is 65 in. tall is 36th

B)Ashers height is at the 88th percentile of the distribution. Interpret this value in context. How tall is Asher

$88=\frac{x}{25} \times 100 \\\frac{2200}{100}=x$

22=x

So, No. of students below or st 88th percentile = 22

So, Asher is 22 inches tall.

4 0

2 years ago

H=45t-4.9t^2 what's the max height?

const2013 [10]

Differentiate to find time that gradient=0 45-9.8t=0 45=9.8t t =4.59 secs put this value into original equation to get 103.31

7 0

3 years ago

Tell me whether the lines are parallel, perpendicular, or neither. If the lines intersect, name the point of intersection.

nata0808 [166]

Answer:

(Neither they aren't parallel because they intersect and they aren't perpendicular because while they intersect they don't make a 90 degree angle and the point of intersection is (1.5,0) and (0,2) since it intersects at 2 places.) -Raymond :3

Step-by-step explanation:

6 0

2 years ago

I can buy 3 cans of soda for $1.05. How many cans can buy at the same rate for $21?

jek_recluse [69]

Answer:

20 cans

Step-by-step explanation:

Divide $21 by $1.05 and you get 20.

3 0

2 years ago

Read 2 more answers

What is the area of shaded section of the circle?

bazaltina [42]

Answer:

≈ 565.5 units²

Step-by-step explanation:

The area (A) of the shaded sector = area of circle × fraction of circle

A = πr² × $\frac{162}{360}$ ← r is the radius

= π × 20² × $\frac{162}{360}$

= 400π × 0.45 ≈ 565.5 units²

4 0

2 years ago