Answer:
the answer is 34.8 I did the math on a calculator
<span><span><span>2x</span>+5</span>=19
</span>Step 1: Subtract 5 from both sides.
<span><span><span><span>2x</span>+5</span>−5</span>=<span>19−5
</span></span><span><span>2x</span>=14
</span>Step 2: Divide both sides by 2.
<span><span><span>2x/</span>2</span>=<span>14/2
</span></span><span>x=7</span><span>
</span>
Answer:x=13.42
Step-by-step explanation:
from Pythagoras principle we have
x^2=√(18^2-12^2)
x^2=√(18x18-12x12)
x^2=√(324-144)
x^2=√(180)
Take the square root of both sides
x=13.42
I see.
The correct way to write these is
A: 3^-2 * 3^ - 2 = 1/9 * 1/9 = 1/81 and this one is fine.
B: 3^-4 = (1/3)^ 4 = 1/3 * 1/3 * 1/3 * 1/3 = 1/81 and this one works.
C: (3^-2)^2 = (1/9)^2 = 1/81 and this one also works.
D: No matter how you interpret this, it is not going to equal 1/81. I think it might be written as -(3)^2 * - (3)^2 = - 9 * - 9 = 81 which is not correct.
Answer: D
Answer:
1/3 X 2 = 2/6, 2/6 + 1/6 = 1/2
1- 1/2 = 1/2 THE ANSWER IS ONE HALF
Step-by-step explanation: