1 + -3 1/2 is = to -2.5 so v= -2.5
Answer:
The Answer is: The first number is 10 and the second number is 8.
Step-by-step explanation:
Let f = first number and s = second number.
The first number is 2 larger than the second:
f = n + 2
The numbers times each other is 80:
f * n = 80
Substitute the value of f, which is (n + 2):
n(n + 2) = 80
n^2 + 2n = 80
n^2 + 2n - 80 = 0
(n + 10)(n - 8) = 0
n^2 + 10n - 8n - 80 = 0, so the first number is 10 and the second one is 8.
Another method, just from thinking about it:
factor 80:
8 * 10, is the first factoring I thought of. I then noted that the difference between the two is 2 and if you multiply them they equal 80.
Hope this helps! Have an Awesome Day!! :-)
The numeric values for the function are given as follows:
a) f(-5) = 14.
b) f(0) = 10.
c) f(5/2) = 8.
d) f(5a) = -4a + 10.
e) f(5a - 15) = -4a + 22.
<h3>How to find the numeric value of a function?</h3>
To find the numeric value of a function, we replace each instance of the variable by the desired value.
For this problem, the function is given by:
f(x) = -0.8x + 10.
Hence the numeric values are given as follows:
- f(-5) = -0.8(-5) + 10 = 14.
- f(0) = -0.8(0) + 10 = 10.
- f(5/2) = f(2.5) = -0.8(2.5) + 10 = 8.
- f(5a) = -0.8(5a) + 10 = -4a + 10.
- f(5a - 15) = -0.8(5a - 15) + 10 = -4a + 22.
More can be learned about the numeric value of a function at brainly.com/question/14556096
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Rachel would have 20 bucs
