Answer:
Step-by-step explanation:
is, in vertex form,
where h and k, the vertex, is (0, 0). It is positive because it opens upwards.
g(x) opens downward, so we know that it is negative. Because it is DOWN 4 units from the origin, is has been moved down -4. Putting that together, we can determine that the equation for g(x) is
, choice D in your list.
Answer:
Step-by-step explanation:
Given the simultaneous inequality
2x+y<10 ....... 1
2x-4y<8 ....... 2
Subtract both equation from each other
(2x-2x)+(y-(-4y))<10-8
0+5y<2
y < 2/5
y < 0.4
Substitute the given value of y into 1;
2x+y<10
2x + 2/5 < 10
2x < 10 - 2/5
2x < 48/5
10x < 48
x < 4.8
Hence the solution to the inequality expressions is (4.8, 0.4)
Answer:
56
Step-by-step explanation:
with Usain Bolt getting the the first place there is only 9 other contestants that can get the two other available medal position. When the second place is taken, there will be 8 remaining contestants for a third place therefore you do 9 multiplied by 8 to get 56 differrent combinations of contestants for the third or second place medal
Answer:
16.25
Step-by-step explanation:
Well, the school is 13/2 miles away.
13/2 = 6.5
Since Edward goes by car there and back, he travels 13 miles a day.
6.5 x 2 = 13
He went for 5 days.
5 x 13 = 65
The car consumed 4 gallons of gas by driving those 65 miles.
65 / 4 = 16.25
Therefore, Edward's car gets 16.25 miles per gallon!
I think the answer is y = .38
