Answer:
D. 2 ÷ 3 =
Step-by-step explanation:
2 ÷ 3 = 0.66666666.... 2/3=0.666666666.....
4x+(3x2)+2=0
(3x2)+2= 8
Subtract 8 on both sides of equation.
4x= -8
Divide by 4 on both sides and your answer will be: x= -2
Answer:
5 1/6
Step-by-step explanation:
First you want to get the same denominator on both of the fractions. So you would multiply 1 2/3 or you can change it into a improper fraction which is a fraction greater than 1. So that would be 5/3 times 2/2. Because you want to get the same denominator. That is 10/6. Then you make 3 1/2 a improper fraction which is 7/2 and multiply it by 3/3 to get 21/6. Next you would add them together and get 31/6 but you have to simplify, so you would divide 31 by 6 and get 5 1/6.
I know that's a lot but I hope it helps.
Answer:
2.8 seconds
Step-by-step explanation:
Given that a ball is thrown directly up
Initial velocity u = 10 ft/sec INitial height = 100 ft
t = time from time of throw
The equation as
Since h(0) =100 we find that h is measured from earth
When the ball hits the ground h=0
So we have
Use binomial formulae to solve this to get
t=2.832 or t =-2.207
Since time cannot be negative
we get t=2.832
At 2.8 seconds ball hits the ground
Answer:
+10 and - 9
Step-by-step explanation:
If we consider the multiples of - 90
± 1, ± 2, ± 3, ± 5, ± 6, ± 9, ± 10, ± 15, ± 30, ± 90
The combination of multiples which multiply to - 90 and add to + 1 are
+ 10 and - 9
since 10 × - 9 = - 90 and 10 - 9 = 1
