Answer:
-28
Step-by-step explanation:
-16 +(-12)
= -16 - 12
adding both of them,
= - 28
Answer:
Question:14
3x4 (for the left square, 3 on the side(width) and 4 on the bottom(length))
3x9 (for the right square, 3 on the side(width) and 4 on the bottom(length))
3x13 (for the entire rectangle)
Question:15
3x10 (for the left, 3 on the side(width) and 10 on the bottom(length))
3x6 (for the right, 3 on the side(width) and 6 on the bottom(length))
Step-by-step explanation:
<h3>
Answer: Choice B) x = 1</h3>
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Explanation:
The problem should read 6^(3-x) = 6^2. The 3-x must be in parenthesis to indicate that all of "3-x" is in the exponent and not just the 3.
Because both bases are 6, and because both sides are equal, this means that the exponents must be equal as well. Therefore 3-x = 2. Let's solve for x
3-x = 2
3-x+x = 2+x .... adding x to both sides
3 = 2+x
2+x = 3 ..... flipping both sides
x+2 = 3
x+2-2 = 3-2 .... subtracting 2 from both sides
<h3>x = 1</h3>
You can use logarithms to solve this problem, but the fact that the bases are both the same allows us to use this faster shortcut.
5.1 is close to 5 to we'll take 5
Do 98 x 5 = 490
Actual answer: 499.8
Compare them, it's close enough!
