Hi!
Use The Percentage Formula To Solve:
385 ÷ 550 * 100 = 70
Mark pays 70% of the original price.
The answer is (-∞.∞).
Draw out a number line. Plot 0 and -4 on the number line.
Shade to the left of x = 0, and have a filled in circle at the endpoint. This is the graph of x≤0
Then graph x ≥−4 by plotting a filled in circle at -4, and shading to the right.
Note how the two graphs overlap to cover the entire real number line
So if we have x≤0 or x≥−4 then we're basically saying x is any real number. To write this in interval notation, we write (−∞,∞)
This is the interval from negative infinity to positive infinity (or just infinity). We exclude each endpoint because we can't actually reach infinity itself. Infinity is not a number. Infinity is a concept
Side note: if you change the "or" to "and", then the solution to x≤0 and x≥−4 would be [-4, 0][−4,0] to indicate the interval from x = -4 to x = 0, including both endpoints. This is the region where the two graphs overlap.
To know more about graphs
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SPJ9
Answer:
8
Step-by-step explanation:
4 ÷ 1/2
~Turn the 4 into a fraction
4/1 ÷ 1/2
~Copy Dopt Flip
4/1 * 2/1
~Multiply
8/1
~Simplify
8
Best of Luck!
Answer:
\left(2^x+5\right)^2 4^x+5\cdot \:2^{1+x}+25
Step-by-step explanation:
N = 9
So
3n - 4 = (3*9) - 4 = 23
