Answer:
Step-by-step explanation:
f(x) = -8x + 20
f(-1) = -8* -1 + 20 = 8+20 =28
5 - 2[f(-1)] = 5 - 2*28 = 5 - 56 = -51
Answer:
f^-1 (x) = √
6x/6 - √
6x/6
Step-by-step explanation:
interchange the variables and solve for y.
sorry its a little hard to read i didnt have all the symbols on my keyboard
Answer:
1, 4, & 6
Step-by-step explanation:
1. is a fraction and fractions are rational numbers
2. 11 is not a perfect square so the answer should be a terminating decimal and terminating decimals are irrational numbers
3. is a terminating decimal and an irrational number
4. .23 is a decimal which is a rational number since it can be made into the fraction 23/100
5. is a terminating decimal which is an irrational number
6. is a fraction which is a rational number
Hope this helped and pls mark Brainliest
Answer:
x=42
y=59
Step-by-step explanation:
Ok so first things first
the angle that is equal to 2x-11 is vertical to the angle that is equal to 73
meaning that these angles are congruent
so we setup an equation
2x-11=73 and solve for x
step 1 add 11 to each side
73+11=84
-11+11 cancels out
now we have
84=2x
step 2 divide each side by 2
84/2=42
so x=42
so we know that the angles that are listed bellow
(73, 48 and y)
are supplements meaning that they will add up to equal 180 so to find y we subtract the given angles
180-73-48=59 so y=59