Answer:
13/8
Step-by-step explanation
Since the denominator is the same, you keep it. Then you just add 6 and 7 which is 13.
Answer:
(i) 6
(ii) 9
(iii) 8
Step-by-step explanation:
(i) -1 + 3 + 4 =6
(ii) 3(3) = 9
(iii) -1^2 + 3^2 =8
[RevyBreeze]
Answer: So the ball hits the ground 4.06 secs after it's kicked.
Step-by-step explanation:h(t)= -16t^2 +64t +4
h(t)= -4( 4t^2 -16t -1) so a=4 b=-16 c=-1
Use Quadratic Formula: x=( -b+/- (b^2-4ac)^1/2)/ 2a
(16+/- ( 256-(4)(4)(-1))^1/2)/8= (16 +/- (272)^1/2)/8
x= (16+/-16.49)/8 ---->x=32.49/4= 4.062 sec
x=(16-16.49)/8 -----> x= -0.49/8= -0.06
So the ball hits the ground 4.06 secs after it's kicked.
Answer:
Step-by-step explanation:
Lets assume the number of articles was x.
Half of the articles was bought at the price 1/5 rupee each and the other half was bought at the price 1/4 rupee each.
<u>Cost of articles:</u>
- 1/2x*1/5 + 1/2x*1/4 =
- 1/2x(1/5 + 1/4) =
- 1/2x(4/20 + 5/20) =
- 9/40x
<u>Money made after sale is:</u>
<u>The difference is 3 rupees:</u>
- 9/40x - 2/9x = 3
- 81/360x - 80/360x = 3
- 1/360x = 3
- x = 3*360
- x = 1080
Correct choice is B