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anastassius [24]
3 years ago
15

Factor completely: 2a2 − a − 10

Mathematics
1 answer:
bezimeni [28]3 years ago
6 0
Correct answer is D.

2a^2-a-10
\\2a^2- 5a+4a -10
\\a(2a-5)+2(2a-5)
\\(2a-5)(a+2)
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Aaden is packing boxes into a carton that is 8 inches long 8 inches wide and 4 inches tall. the boxes are 2 inches long 1 inch w
vredina [299]
I'm sorry no one can answer and where is the question?
Please put in the question and I might be able to help!
8 0
2 years ago
You have 16 coins that are heads up and 18 coins that are tails up. After you add some coins that are tails up, the ratio of hea
Gwar [14]
So 16=heads
18=tails
after you add some tails
18+x

ratio of heads to tails is 1:1.5
heads=16, didn't change
tails=18+x

so
1:1.5=16:18+x
fractionify
1/1.5=16/(18+x)
1/1.5=2/3
2/3=16/(18+x)
mutiply both sides by (3)(18+x)
2(18+x)=3(16)
36+2x=48
subtract 36 from both sides
2x=12
divide 2
x=6

6 tails added


total=heads+tails
heads=16
tails=18+6=24
total=16+24
total=40



6 tails added
40 total coins
6 0
2 years ago
Can someone plz help me i will thank u so much
klemol [59]

Answer:

2 hours and 29 minutes

Step-by-step explanation:

if you change 9 hours to minutes you get 540 plus 17 equals 557. if you turn 6 hours to minutes it's 360 plus 48 equals 408. 557 minus 408 equals 149 minutes. Now if you convert it to hours and minutes you need to divide by 60. So if you divide it you get 2 hours and 29 minutes. hope this helped! :)

4 0
3 years ago
A(-1,2) B(3,1) C(1,-4) To the new coordinated A'(-2,4) B'(6,2) C'(2,-8) what was the scale factor?
kicyunya [14]

Answer:

Step-by-step explanation:

A(-1, 2)  ==> A'(-2, 4)

B(3,1) ==> B'(6,2)

C(1,-4) ==> C'(2,-8)

Based on the results of each set, the scale factor is 2

A(-1*2, 2*2)=  A'(-2, 4)

6 0
3 years ago
How would I do this? Solve for q. –10 + 10q = 9q
DerKrebs [107]

Answer:

q=10

Step-by-step explanation:

-10+10q=9q

-10=-q

q=10

4 0
2 years ago
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