Write two equations with the given information:
1) x = 2y ( x is twice the value of y)
2) x + y = 42
Replace x in the second equation with the value of x in the first equation:
2y + y = 42
Simplify:
3y = 42
Divide both sides by 3:
y = 42 / 3
y = 14
Now we have the value for Y, solve for x by replacing y with 14:
x = 2y
x = 2(14)
x = 28
X = 28 and y = 14
B shows her getting closer to home, immediately turning round, gives time for finding book then riding all the way home at a constant speed
Answer:
4x^2 -5x -2
Step-by-step explanation:
= 5x^2 -3x -7 -x^2 -2x +5
= (5 -1)x^2 +(-3 -2)x +(-7 +5)
= 4x^2 -5x -2
F(x) =√x : Right
f(x) = x² : Wrong
Domain: x> or = to Zero & for x<0 then x∈ C
f(x) > or = to zero. Yes Real
The domain is all real & positive numbers
Answer:
choice A because
2^(8.24) = 2^(8 + 0.2 + 0.04) = (2^8) *(2^ (2/10)) * (2^ (4/100))
Step-by-step explanation:
we have the power: 2^(8.24) = 2^(8 + 0.2 + 0.04)
notice.
2^(8 + 0.2 + 0.04)= (2^8) * (2^0.2) * (2^0.04)
2^(8 + 0.2 + 0.04) = (2^8) *(2^ (2/10)) * (2^ (4/100))
