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german
4 years ago
11

What is 5x^2 - 15x - 20

Mathematics
1 answer:
asambeis [7]4 years ago
7 0

Answer:

5(x+1)(x-4)

Step-by-step explanation:

5(x^2-3x-4)

=x(x+1)-4(x-1)

= (x+1)(x-4)

so, = 5(x+1)(x-4)

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Pete is ahead of nick by 11 meters. Oliver is ahead of manny by 10 meters. Oliver is ahead of pete by 5 meters. How far is the r
Leokris [45]

Answer:

<u>The runner in first place is 16 meters ahead of the runner in last place</u>

Step-by-step explanation:

There are 4 boys racing - Pete, Nick, Manny, and Oliver.

Pete is 11 meters ahead of Nick, Oliver is 10 meters ahead of Manny, and Oliver is ahead of Pete by 5 meters.

This means Oliver is ahead of the other three racers, putting him in first place, and Manny is between Nick and Pete.

So in order to find out the distance between the racer in first place (Oliver) and the racer in last place (Nick), add the distance between Oliver and Pete and the distance between Pete and Nick.

Add the distances: <u>5 + 11</u>

<u>Therefore, the runner in first place (Oliver) is 16 meters ahead of the runner in last place (Nick).</u>

7 0
2 years ago
Which of the following circles lie completely within the fourth quadrant? Check all that apply.
arlik [135]
Remember that the circle formula is (x – h)2 + (y – k)2 = r<span>2 where h and k represents the center of the circle. We determine as follows:

</span><span>A.(x - 2)2 + (y + 7)2 =64
</span><span> (h,k) = 2,-7 QUADRANT 4

</span><span>B.(x - 5)2 + (y + 5)2 = 9
</span><span> (h,k) = 5,-7 QUADRANT 4</span>

<span>C.(x - 9)2 + (y + 9)2 = 16
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<span>D.(x - 12)2 + (y + 0)2 = 72
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5 0
3 years ago
The price of an item has been reduced by 55% the original price was $35
Flauer [41]

Answer:

15.75 new price

Step-by-step explanation:

55% of 35

55/100*35

35-19.25

15.75 new price

7 0
3 years ago
How many multiples of 17 are there between 0 and 100
NeX [460]
It is 17,34, 51, 68,85,102,119,136,153,170 and so and so on. 
3 0
4 years ago
Read 2 more answers
An observer (O) spots a bird flying at a 42° angle from a line drawn horizontal to its nest. If the distance from the observer (
Elza [17]
Cos(42)=x/17000
X=17000*cos(42)
X=17000*0.743
X==12,631
4 0
4 years ago
Read 2 more answers
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