Answer:
f^-1(x) = 1/(5x - 3) (See explanation for alternate answer)
Step-by-step explanation:
Assuming you meant f(x) = 1/(5x) + 3/5
y = 1/(5x) + 3/5
(I like to substitute x and y early on)
x = 1/(5y) + 3/5
5x = 1/y + 3
1/y = 5x - 3
f^-1(x) = 1/(5x - 3)
Assuming you meant f(x) = 1x/5 + 3/5
y = 1x/5 + 3/5
x = 1y/5 + 3/5
5x = y + 3
f^-1(x) = 5x - 3
A) first 80° and then 80°
B) first 120° and then 120°
C) first 144° and then 144°
D) first 160° and then 160°
We solve the inequality 3y + 5 < 10 by subtracting 5 from both sides and then dividing by 3. This leads us to y < 5/3, meaning that y is less than 1 2/3 in terms of a mixed number.
The given inequality is 3y + 5 < 10. To find the value of y, we first subtract 5 from both sides to get 3y < 5. Then, we divide both sides by 3 to solve for y. This gives us y < 5/3. In terms of a mixed number, y is less than 1 2/3.
#SPJ2
Write an expression for the Product of (x+5)(x-3)
Answer:
I think this could be the answer- x^ +2x-15
From what we know about rounding, we will see that the possible total amount of money is given by the inequality:
£14.75 ≤ M ≤ £16.23
When we round a given number to a given place, what we need to do is look at the number at the right of that place.
So we know that Jon, to the nearest pound has £9.
We know that to the nearest £0.50, so we look at the half of 0.5, which is 0.25, for example:
1.23 would be rounded to 1.
1.25 would be rounded to 1.50
1.27 would be rounded to 1.50
Ellie has £6.50, then she has:
So, adding the minimums and maximums together we get:
minimum = £8.50 + £6.25 = £14.75
maximum = £9.49 + £6.54 = £16.23
So the possible total amount of money, defined by M, is in the interval:
£14.75 ≤ M ≤ £16.23
If you want to learn more about rounding, you can read:
Answer:
£16.25
Step-by-step explanation:
Jon. £9 to nearest pound so £9.50
Ellie. £6.50 to the nearest 50p so £6.75. £
9.5+6.75 = £16.25