3 years ago

If the Standard Deviation was 3 and the average was 52, between what 2 values would contain

Mathematics

1 answer:

lukranit [14]3 years ago

4 0

Answer:

between 49-55.

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A car is going at 80 mph. how long will it take to cover 20 miles

Lilit [14]

30 = 80*t
t = 30/80 = 3/8 hr
3/8 hr * 60 min/hr = 180/8 = 22.5 min

6 0

4 years ago

Edward can run 1/2 mile in 300 seconds what is edwards unit rate

Vilka [71]

Rate/ speed = distance / time;
= 1/2mile / 300 seconds;
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7 0

4 years ago

Which of the following equations has the solution x= all real numbers?

Marysya12 [62]

The answer is C
4(3-x)+6x=3x+12-x All real numbers are solutions.

5 0

3 years ago

The coordinates of the endpoints of ST are (-2,3) and (3, y) respectively supposethe distance between s and t us 13 units.What v

igor_vitrenko [27]

Answer:

The values of y would be -9 and 15

Step-by-step explanation:

we know that

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

we have

$d=13\ units$

S(-2,3) and T(3,y)

substitute the given values in the formula and solve for y

$13=\sqrt{(y-3)^{2}+(3+2)^{2}}$

$13=\sqrt{(y-3)^{2}+25}$

squared both sides

$169=(y-3)^{2}+25$

$(y-3)^{2}=169-25$

$(y-3)^{2}=144$

take square root both sides

$y-3=(+/-)12$

$y=3(+/-)12$

$y=3(+)12=15$

$y=3(-)12=-9$

therefore

The values of y would be -9 and 15

5 0

4 years ago

Can someone explain to me how to solve this equation<br>15x +-6 = 8

soldier1979 [14.2K]

Answer:

x=0.933333

Step-by-step explanation:

First you add 6 to both sides of the equation

15x - 6 + 6 = 8 +6

That gives you 15x = 14

Then you divide 15 on both sides of the equation

That gives you x = 14/15 = 0.93333

8 0

4 years ago

Read 2 more answers