3 years ago

Please factor 20x^2+11x-4=0

2 answers:

7 0

3 0

First factor 20x^2
(4x and 5x)
(4x-1)(5x+4)=0
4x-1=0
x=1/4
5x+4=0
x=-4/5

You might be interested in

Andrews [41]

Answer:

[(1/12)(5/5) + (1/20)(3/3)](x hours) = 1

(5/60 + 3/60)x = 1

(8/60)x = 1 we can reduce 8/60 by dividing out a 4

(2/15)x = 1 x both sides by 15/2

x = 15/2

x = 7 1/2 or 7.5 hours

5 0

3 years ago

erastova [34]

Answer:

M=v^2r / 2G

Step-by-step explanation:

Open the file, it is solved for you, your welcome.

4 0

2 years ago

timofeeve [1]

4 x+9=13 X=4 subtract 9 from the 9 and 13 and 13-9 =4 so x=4

5 0

2 years ago

lbvjy [14]

$V=\dfrac{1}{3}BH\\\\B=9\cdot6=54\ (in^2)\\H=7\ in\\\\subtitute\\\\V=\dfrac{1}{3}\cdot54\cdot7=18\cdot7=126\ (in^3)$

Answer: a. 126 in³.

6 0

2 years ago

atroni [7]

Answer: 20

Step-by-step explanation:

2^2=4

5*2=10

2^2 and 5 would be multiplied

8 0

3 years ago