F(x^2) = x^2 - 3
5f(x^2) = 5x^2 - 15 = 2x - 8
Placing all the terms on the left side, we get:
5x^2 - 2x - 7 = 0 which factorises to
(5x - 7)(x + 1) = 0
So, x = 7/5 or x = -1
But x is non-negative, so x = 7/5 = 1 2/5
C is the answer.
Remember that scientific notation always contains a number between 0 and 10 that is multiplied by ten to some power. In this case, to get a number between 0 and 10 (7.2) we would move the decimal point once to the right. Since it is moving to ththe right, the exponent over the 10 will be negative, and it will be -1 because we moved the point once. So the answer is 7.2*10^-1
Hope this helps
Answer:
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Step-by-step ex
He shows the formula to find it which is 360/n, where n is the number of sides of the regular polygon. He goes on further to explain the formula by taking an 18-sided regular polygon as example and computes its exterior angle as 360/18, which is 20 degrees
Answer
172.5mi
Step-by-step explanation:
5 inches (30) = 150, = 1/2 inch=30, half of the half = 30
5x30+30+15
Answer:
right 5 units
Step-by-step explanation:
given f(x) then f(x ± a) is a horizontal translation of f(x)
• if + a then a shift of a units left
• if - a then a shift of 5 units right
f(x) → g(x) = (x - 5)² with a = - 5
then f(x) is shifted 5 units right to obtain g(x)
