MATHEMATICS HIGH SCHOOL

Is 3 yards greater or less than or equal to 21 feet

Answers

Answer 1
Answer: 3 yards is less than 21 feet. 3 yards is 9 feet. 7 yards is 21 feet
Answer 2
Answer: 3 yards is less than 21 feet because there are 3 feet in each yard.
3x3=9
21 feet is greater than 9 feet
Hope this helps!!!

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Find the slope of the line that passes through the points (-8,-3) and (2, 3)0
1
3/5
5/3

Answers

Answer:

The answer is

(3)/(5)

Step-by-step explanation:

To find the slope passing through two points we use the formula

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

Where

m is the slope

( x1 , y1) and ( x2 , y2) are the points

From the question the points are

(-8,-3) and (2, 3)

So the slope is

m = (3 + 3)/(2 + 8) = (6)/(10) = (3)/(5)

Hope this helps you

Solve for m in E=1/2mv²+mgh

Answers

E= (1)/(2) mv^2+mgh\ /\cdot2\n\n2E=mv^2+2mgh\n\n2E=m(v^2+2gh)\ /:(v^2+2gh)\n\nm= (2E)/(v^2+2gh)
E= (1)/(2)mv^2+mgh \ \ / \cdot 2\n \n 2 \cdot (1)/(2)mv^2+ 2\cdotmgh = 2\cdot E\n \n mv^2+2mgh= 2E \n \nm(v ^2+2gh)= 2E \n \n m=(2E)/(v ^2+2gh)

Doug entered a conoe race he rowed 3.5 miles in .5 hrs what is his average speed

Answers

7 miles per hour.

if you multiply the distance and time by 2 you get 7 miles in 1 hour, or 7 mph

(-2x) 4
O A. – 16x4
O B. -8x4
O C. -2xt
O D. 84
O E. 16x4

Answers

Answer:

The answer should be -8x

Step-by-step explanation:

You would use distiputive property and multiple four by negitive two and you would end up getting -8x

In quadrilateral ABCD, angle A=(4x+10), Angle B=108, angle C= 3x, and angle D=67. Solve for x.

Answers

as the sum of angels in quadrilateral = 360°
so , A+B+C+D = 360
hence, x = 25

There are 9 performers who are to present their acts at a variety show. How many different ways are there to schedule their appearances

Answers

The number of ways to schedule their appearances is 362880

How to determine the number of ways to schedule their appearances?

The number of performers is given as:

n= 9

Assume that the performers can only perform one after the other;

The number of ways their appearances can be scheduled is:

Ways = 9!

Expand

Ways = 9 * 8 * 7 * ... * 1

Evaluate

Ways = 362880

Hence, the number of ways to schedule their appearances is 362880

Read more about factorials at:

brainly.com/question/11732255
For this type of question it is easiest to think about it in terms of a simple multiplication. The way we can do this is by working out how many possibilities there are for each position on the program. This is as follows:
For the first act, there are 9 possible performers we can pick
For the second act, because we have already assigned a performer to the first act, there are only 8 possible performers
For the third act, because we have already assigned a performer to the first two acts, there are only 7 possible performers
This goes on and on until we reach the final act, where we have used all the performers except one.
Therefore we can say:
For the first act there are 9 possibilities
For the second act there are 8 possibilities
For the third act there are 7 possibilities
For the fourth act there are 6 possibilities and so on
If we want to write this mathematically we can just say that there are:
9 possibilities x 8 possibilites x 7 possibilities etc right down until we are at the final act where there is 1 possibility.
To write this out as an equation we just say:
9 x 8 x 7 x 6 x 5 x 4 x 3 x 2 x 1 = the number of different ways
In maths however, we have a much simpler way of saying this, which we call "factorial".
That whole stream of numbers up there can just be said to be "9 factorial", or if we are writing it in an equation "9!". You may find that your calculator has a button which has an "!" on it. If you put in the number of performers and then press the "!" button, it will give you the answer to your question.
Hope this helped you :)
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