MATHEMATICS
HIGH SCHOOL

its a right triangle with sides X, 5, and a 25 degree angle.

Answer: Your answer will be 150

MIDDLE SCHOOL

An elevator started on the 14th floor. It went down 7 floors, up 4 floors, up 9 floors, and down 3 floors. On what floor did the elevator finally stop?

Answer:

17

Step-by-step explanation:

14 - 7 = 7

7 + 4 +9 =20

20 - 3 = 17

HIGH SCHOOL

S=5r^2t solve for T please

Hello there!

S = 5r^2 * T

To solve for T, we need to isolate it - or get it on one side of the equation by itself.

To do this, we need to divide both sides by 5r^2.

S/5r^2 = T is now our equation and final solution.

I hope this helps!

S = 5r^2 * T

To solve for T, we need to isolate it - or get it on one side of the equation by itself.

To do this, we need to divide both sides by 5r^2.

S/5r^2 = T is now our equation and final solution.

I hope this helps!

Square root both sides

RootS=5r rootT

Divide both sides by 5r

RootS/5r=root T

Square both sides

S/5r^2=T Or you could just divide both sides by 5r^2 to get the same answer.

RootS=5r rootT

Divide both sides by 5r

RootS/5r=root T

Square both sides

S/5r^2=T Or you could just divide both sides by 5r^2 to get the same answer.

MIDDLE SCHOOL

5

Because the base 5 is the same between all three terms, you can simply combine the exponents via addition or subtraction to find the simplified answer.

5^-7 * 5^12 * 5^-2 = 5^3 (This is your answer.)

Let me know if you have any other questions!

The answer to the question is 5^3

COLLEGE

Write the expression 2 3/5 as a radical.

Write the expression 2 3/5 as a radical.

COLLEGE

An author of a book discusses how statistics can be used to judge both a baseball player’s potential and a team’s on-base percentage is the best predictor of winning percentage. The on-base percentage is the proportion of time a player reaches a base. For example, an on-base percentage of 0.3 would mean the player safely reaches bases 3 times out of 10, on average. For a certain baseball season, winning percentage, y, and on-base percentage, x, are linearly related by the least-square regression equation ^y = 2.96x-0.4877.Complete parts (a) thru (d). A. Interpret the slope. Choose the answer below.

A. For each percentage point increase in on-base percentage, the on-base percentage will increase by 2.96 percentage points, on average.

B. For each percentage point increase in winning percentage, the on-base percentage will increase by 2.96 percentage points, on average.

C. For each percentage point increase in on-base percentage, the on-base percentage will in decrease by 2.96 percentage points, on average.

D. For each percentage point increase in winning percentage, the on-base percentage will in decrease by 2.96 percentage points, on average.

B. For this baseball season, the lowest on-base percentage was 0.320 and the highest on-base percentage was 0.366. Does it make sense to interpret the y-intercept?

___Yes

___No

C. Would it be a good idea to use this model to predict the winning percentage of a team whose on-base percentage was 0.240?

___No, it would be a bad idea.

___Yes, it would be a good idea.

D. A certain team had an on-base percentage of 0.322 and a winning percentage of 0.544. What is the residual for that team? How would you interpret this residual?

The residual for the team is ___. (Round to four decimal places as needed.)

How would you interpret this residual?

__A. This residual indicates the winning percentage of the team and the on-base percentage of other teams do not vary.

__B. This residual indicates that the winning percentage of the team is above average for the teams with a winning percentage of 0.544.

__C. This residual indicates that the winning percentage of the team is above average for the teams with an on-base percentage of 0.322.

__D. This residual indicates that the winning percentage of the team is below average for the teams with an on-base percentage of 0.322.

Answer:

A.)

Slope: 2.96

For each percentage point increase in on-base percentage, the winning percentage will increase by 2.96 points, on average.

B.) Yes, it is clear that the values of x are positive. Neither is it 0. It tells the graph does not intercept the y axis.

C.) Yes, we can calculate the predicted value of winning percentage by putting 0.240 in place of x in the regression equation. It will give the predicted winning percentage value to be 0.2227.

D.) The residual for the team is 0.07858.

Part c.) The residual is the vertical distance between a data point and the regression line.

Hence positive sign of the residual indicates that it is above regression line. At the point x=0.322

HIGH SCHOOL

Find the dot product of two given vectors, u = <1,6> and v = <-5,-2> A. -17

B -7

C. 7

D. 17

U.v = (1*-5) + (6*-2) = -5 - 12 = -17

Answer:

A) -7 is the answer

hope it helps

please mark brainliest

HIGH SCHOOL

The expression (a3)2 can be simplified as shown here: (a3)2 = (a3)(a3) = (a · a · a)(a · a · a) = a6 Write out in words how you would explain each step of this process to a friend. Why is each step equal to the previous step? Using a similar reasoning, explain why (a2)3= a6.

1 step: if you have to square some number, then you have to multiply this number by itself:

2 step: to find the cube of a number you should multiply this number two times by itself:

3 step: multiplying a by itself 5 times you get the 6th power of a:

Similar way to count is:

MIDDLE SCHOOL

A counter top is 16 feet long and 3 feet wide. Tile costs $28 per square meter. How much will it cost to cover the counter top with new tile

I believe what you do is multiply 16 by 3 and then multiply that by 28

HIGH SCHOOL

A hemisphere has a diameter of 45 centimeters. a larger hemisphere has a diameter of 57 centimeters. what is the surface area to volume ratio of the smaller hemisphere? round to the nearest hundredth.

We know that

[surface area of hemisphere]=2*pi*r²

[volume of hemisphere]=(4/6)*pi*r³

so

[surface area to volume ratio of hemisphere]=(2*pi*r²)/((4/6)*pi*r³)

[surface area to volume ratio of hemisphere]=3/r

for the the smaller hemisphere

diameter=45 cm

r=45/2-----> r=22.5 cm

[surface area to volume ratio of smaller hemisphere]=3/22.5----> 0.13

the answer is

0.13

[surface area of hemisphere]=2*pi*r²

[volume of hemisphere]=(4/6)*pi*r³

so

[surface area to volume ratio of hemisphere]=(2*pi*r²)/((4/6)*pi*r³)

[surface area to volume ratio of hemisphere]=3/r

for the the smaller hemisphere

diameter=45 cm

r=45/2-----> r=22.5 cm

[surface area to volume ratio of smaller hemisphere]=3/22.5----> 0.13

the answer is

0.13