We are asked to determine the value of a such that the function f(x) = ax^2 + 5 is fit for the point given (-1,2). In this case, we substitute 2 to y and -1 to x. The result is then 2 = a*(-1)^2 + 5 ; 2 = a + 5; a is then equal to -3
Answer:
Step-by-step explanation:
The question is incomplete had the number of harvested apples isn't given.
Answer:
0.06n
Step-by-step explanation:
When a farmer harvests apples he expects 6% of the apples to be rotten how many apples would the farmer expect to be rotting when harvesting apples
The expected percentage of rotten apples when harvesting = 6%
The expected number of rotten apples can be obtained by taking the product of the expected percentage and the number of apples to be harvested.
Since the number of harvested apples isn't given,
Let the number of harvested apples = n
Therefore, the expected number of rotten apples will be :
6% * n
0.06n
Note : you can easily substitute the actual number of harvested apples for n in the equto get the actual answer
Answer:
d
Step-by-step explanation:
Given y is directly proportional to x² then the equation relating them is
y = kx² ← k is the constant of proportion
To find k use the condition y = 
when x = 
, then
= k( )² = 
k ( multiply both sides by 8 )
1 = 2k ( divide both sides by 2 )
k =
y = x² ← equation of proportion
When y = 
, then
= x² ( multiply both sides by 2 )
9 = x² ( take the square root of both sides )
x = ± 
= ± 3
with positive value x = 3 → d
