In math,
"of" is the same as "×" and "is" means "="
42.5% of x = 20.57
42.5% × x = 20.57
.425x = 20.57
x = 20.57/.425
x = 48.4
42.5% of 48.4 is 20.57
Answer:
y=-3(x-1)^2+5
Step-by-step explanation:
The vertex form of a parabola is y=a(x-h)^2+k where (h,k) is the vertex.
We are given the vertex (h,k) is (1,5) so that makes the equation we have
y=a(x-1)^2+5.
We still need to find a.
We do have the point (0,2) on our parabola.
So replace (x,y) with (0,2) and solve for a.
2=a(0-1)^2+5
2=a(-1)^2+5
2=a(1)+5
2=a+5
-3=a
So the equation is
y=-3(x-1)^2+5
Answer:
A: 9 seconds
B: 144 ft.
Step-by-step explanation:
A:
Let t = no. of seconds for them to meet
When they meet the sum of their distances is 270 ft, dist = rate * time
16t + 14t = 270
30t = 270
t = 270/30
t = 9 seconds
B:
He ran 9 sec at 16 ft/sec, therefore:
9 * 16 = 144 ft
correct, as there are illegal immigrants.
Answer : one of the factor is (2h+1)
LEts factor the given expression
WE have negative in common
so we factor out negative
Now we multiply 2 and 7 = 14
We find out two factors whose product is 14 and sum is 15
1 times 14 = 14
1 + 14 = 15
So two factors are 1 and 14
Now split the middle term 15h using factors 1 and 14
We group first two terms and last two terms and factor out GCF
So one of the factor is (2h+1)
