Answer:
2.5 seconds since the first ball was hit.
Step-by-step explanation:
The equations that model the heights are:
When the balls meet, both heights are equal, therefore:
-16t² + 56t = -16t² + 156t - 248
-16t² + 56t + 16t² - 156t + 248 = 0
- 100t + 248 = 0
248 = 100t
248/100 = t
t = 2.48 ≈ 2.5
Answer:
<h2>60in^2</h2>
Step-by-step explanation:
Step one:
given data
lenght L= 5in
width W= 3 in
area= L*W
area= 5*3= 15in^2
Step two:
The rectangle was scaled by 2, this means that the dimensions were doubled
therefore the lenght and width will be
L=5*2= 10
W=3*2= 6
hence the area is
Area= 10*6= 60in^2
Answer:
in the first step you were supposed to multiply 3 and two not subrtract 5 and 3 because you have to multiply first according to P.E.M.D.A.S.
Step-by-step explanation:
X-5/(x+1)(x-3)
expand the brackets:
(x+1)(x-3)
=x^2-3x+x-3
-----------------------------
now we have got rid of the brackets.so it will be :
x^2-3x+x-3+x-5
simplify it now :
=x^2-x-8
answer is I think
x^2-x-8 [Less than or equal to] 0
37.5%
1) Examining the Spinner we can see that the total possibilities are:
90+45+90+135 = 360
2) Since the question is P(green or red) we can write out:
Note that the event of picking red or picking green can't exist simultaneously so they are mutually exclusive.
The result in percentage will be obtained by multiplying it by 100
3) Hence, the answer is 37.5%
