Answer:
1. A. 2. C. 3. C
Step-by-step explanation:
Answer:
The Answer is: The first number is 42 and the second number is 18.
Step-by-step explanation:
Let f = first number and s = second number.
f + s = 60
f - s = 24
Solve for f:
f = 24 + s
Substitute:
24 + s + s = 60
2s = 36
s = 18, the Second Number
Solve for f:
f = 24 + s
f = 24 + 18 = 42, the First Number
Proof:
42 + 18 = 60
60 = 60
Then:
42 - 18 = 24
24 = 24
Hope this helps! Have an Awesome Day!! :-)
The formula for circumference is C = 2<span>πr.
We already know that the radius of the circle is 21 feet, so let's plug that into the equation.
C = 2</span><span>π(21)
Now let's simplify
C = 6.28(21)
C = 131.9
131.9 is your circumference.</span>
3x+(x-2)=10
4x=12
x=12/4=3
y=x-2=3-2=1
so, x=3 and y=1
Answer: (3;1)
-3√45 + 3√20 = -3√(9 · 5) + 3√(4 · 5) =
= -3√(3² · 5) + 3√(2² · 5) =
= -3 · 3√5 + 3 · 2√5 =
= -9√5 + 6√5 = -3√5 ← the end
