$4 is what percent of $50
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This is 1 way-
4/50=%/100 You now have a proportion. Cross multiply.
50%=400 Replace % with any variable.
50x=400 Now divide both sides of the equation by 50.
x=8
(% is basically the percentage of 4 of 50 over 100. its much easier to solve percentage problems when the percentages are over 100. 100 represents a full percentage.
example- 4 of 100 is 4% of 100)
2nd example-
Since the percentage can be found if over 100 as well (%/100), and since 100 is a multiple of 50, we can do 4 of 50 (which would look like 4/50) and multiply both numbers by 2 to get the percentage. These are our steps:
4/50× 2/2=
8/100
Therefore, 4 of 50 is 8% of 50
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Answer:
9
Step-by-step explanation:
-3+6 is 3
3*3 is 9
f(x)= x2-3x+3
g(x)= 2x2-1
f(z^2)= .....
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f(x) = x^2 - 3x + 3
f(z^2) = (z^2)^2 - 3z^2 + 3
f(z^2) = z^4 - 3z^2 + 3
g(x) is only there to confuse you.
Apparently it was successful.
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Answer:
Step-by-step explanation:
x-intercept if when y is 0, so, on the x-axis. as we can see the x-intercept is -40
y-intercept if when x is 0, so, on the y-axis. as we can see the y-intercept is 15
Answer:
x-intercept:
y-intercept:
Step-by-step explanation:
The x-intercept is the point where the line meets the x-axis, and the y-intercept is the point on the line which meets the y-axis.
The line intersects the y-axis at , so the y-intercept is
.
The line intersects the x-axis at , so the x-intercept is
.
Hope this helps :)
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Answer:
The answer is A.
Step-by-step explanation:
In this kind of exercise the usual way to solve it is s kind of trial an error. We evaluate f(x) in the given values of x and check if it corresponds with the values of f(x) in the table. If only one of the calculations does not correspond we dismiss the function.
Let us start our analysis from D. to A.
D. In this case f(x) = x-1, then f(-3) = -3-1=-4, and the result does not correspond to the values of the table (recall f(-3)=-1).
C. The same idea: we have f(x)=x-2, then f(-3)=-3-2=-5, and the result does not correspond to the values of the table (recall f(-3)=-1).
B. Here f(x)=3x, then f(-3)=3*(-3)=-9, and the result does not correspond to the values of the table (recall f(-3)=-1).
A. Now f(x)=x+2, then f(-3)=-3+2=-1, and the result does correspond to the values of the table (recall f(-3)=-1). So, we need to check the next values of the table:
f(0)=0+2=2, f(3)=3+2=5 and f(6)=6+2=8.
As all the values are equal to those in the table, we conclude that A. is the correct answer.
x = -3, f(x) = -3 + 2 = -1
x = 0, f(x) = 0 + 2 = 2
x = 2, f(x) = 2 + 2 = 4
x = 3, f(x) = 3 + 2 = 5
And so on...
By observation: f(x) = x + 2. Option (A).
I hope this helps.