Answer:
y = 1/10
x can be any number but 0
Step-by-step explanation:
x^0=10y
X raised to the zero power is 1 unless x =0 in which it is undefined
1 = 10y
Divide each side by 10
1/10 = 10y/10
1/10 =y
No; try multiplying 0.25 w different numbers
1*.25= .25
2*.25= .5
3*.25= .75
Answer:
Width is 20cm
Step-by-step explanation:
Step one:
Given data
let the width be x
W= x
L= x+5
P= 90
Step two:
The expression for the perimeter is
P= 2L+2W
90= 2*x+2(x+5)
90= 2x+2x+10
collect like terms
90-10=4x
80= 4x
divide both sides by 4
x= 80/4
x= 20
Answer:
The only possible answer that is correct is the first one, x = -4.
Step-by-step explanation:
Simplify the given inequality as much as possible, and then substitute each of the given x values one by one to determine which is in the solution set.
9(2x + 1) < 9x - 18 becomes 18x + 9 < 9x - 18, which, if reduced by dividing all four terms by 9, becomes 2x + 1 < x - 2.
Simplifying further, we get x < - 3. The only possible answer that is correct is the first one, x = -4. -4 < -3 is true.
Answer:
c
Step-by-step explanation: