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anzhelika [568]
3 years ago
6

More than half of the students were excited about the project. In fact, were excited. If 10 students were not

Mathematics
1 answer:
alina1380 [7]3 years ago
8 0

Answer:1/2 divided by 10

Step-by-step explanation:

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A cement walkway of uniform width has been built around an in-ground rectangular pool. the area of the walkway is 1344 square fe
Elza [17]

Answer:

6 feet.

Step-by-step explanation:

Dimensions of the Pool =80 feet long by 20 feet wide

Area of the walkway =1344 square feet.

If the width of the walkway=w

  • Length of the Larger Rectangle =80+2w
  • Width of the Larger Rectangle =20+2w

Area of the Walkway =Area of the Larger Rectangle - Area of the Pool

1344=(80+2w)(20+2w)-(80*20)\\1344=80*20+160w+40w+4w^2-80*20\\4w^2+200w=1344\\4w^2+200w-1344=0\\We factorize\\4(w^2+50w-336)=0\\4(w^2-6w+56w-336)=0\\w(w-6)+56(w-6)=0\\(w-6)(w+56)=0\\w-6=0$ or $ w+56=0\\w=6$ ft or $ w=-56$ \\Therefore, the width of the walkway , w=6 feet.

6 0
3 years ago
The tip jar at a sandwich shop has been found to have a dollar value 0.65ℎ +1.25, where ℎ is the number of hours since the shop
DedPeter [7]

Answer:

The intial value is 1.25

Step-by-step explanation:

7 0
3 years ago
The coordinates of the community center are (5, −1). Who has a house in the same quadrant as the community center?
WINSTONCH [101]
(5,-1) is located in quadrant IV......quadrant IV has (+ x, -y).....so any points that have (+ x, - y) are in this quadrant. 
Example : (6,-3) is in this quadrant......(2,-4) is also in this quadrant. 
So whoever has the house with (+ x, -y) is going to be in the same quadrant as the community center.
3 0
3 years ago
Read 2 more answers
Which of the following is a factor of 7x2 - 12x - 4? (6 points)
grin007 [14]

Answer:

We conclude that 'None of the above' is the correct answer.                    

Step-by-step explanation:

Given the expression

7x^2\:-\:12x\:-\:4

Breaking the expression into groups

7x^2\:-\:12x\:-\:4=\left(7x^2+2x\right)+\left(-14x-4\right)

Factor out x from 7x^2\:+\:2x

=x\left(7x+2\right)

Factor out -2 from \left(-14x-4\right)

=-2\left(7x+2\right)

so the expression becomes

7x^2\:-\:12x\:-\:4=\left(7x^2+2x\right)+\left(-14x-4\right)

                         =x\left(7x+2\right)-2\left(7x+2\right)

Factor out the common term 7x+2

                         =\left(7x+2\right)\left(x-2\right)

Therefore, from the given options, we conclude that 'None of the above' is the correct answer.                    

4 0
3 years ago
Can some one explain Quadratic Equations to me, i to get how to slove them, could you show me how it works on this problem, y^2=
andrey2020 [161]

Here you go! I apologize if it makes no sense. I write my notes and practice problems super weirdly.

6 0
3 years ago
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