To solve both of these expressions, we want to add or subtract from left to right.
For the first one, we can rewrite it as:
8-6-9
=2-9
=-7
The second one we can rewrite as:
5-7+9+8-4
=-2+9+8-4
=7+8-4
=15-4
=11
Answer:
2(8-x)=3(4+x)
Step-by-step explanation:
16-2x=12+3x
16=12+5x
4=5x
4/5 (or 0.8)=x
Answer:
Step-by-step explanation:
A Descent rate,
B 10725ft,
C 25min
Answer:
8.94 m
Step-by-step explanation:
Use the Pythagorean Theorum - 
. Use leg 1 as <em>a</em>, leg 2 as <em>b</em>, and the third side as <em>c</em>.
We know leg 1 is 4, and that leg 2 is twice as long as leg 1...
Now, we use the Order of Operations to find 
...
Now, we find the square root of to find c...
So, the length of the third side is 8.94 m.
To multiply exponents with like bases, simply add the exponents...
3^-3 × 3^4 × 3 × 3^-5 =
add exponents across, remember just 3 means 3^1.
-3 + 4 + 1 + -5 = -3
answer is 3^-3
