Answer:
9.2.
Step-by-step explanation:
40 ÷ 8 + 3.2 + 15 - 7 × 2 Perform the divide and multiply first:
= 5 + 3.2 + 15 - 14 Now proceed from left to right:
= 8.2 + 15 - 14
= 23.2 - 14
= 9.2.
Answer:
8
Step-by-step explanation:
2n-5=11
2n=11+5
2n=16
n=8
Answer:
21 and 23
Step-by-step explanation:
9514 1404 393
Answer:
y -10 = 1/8(x +8)
Step-by-step explanation:
The point-slope form of the equation of a line with slope m through point (h, k) is ...
y -k = m(x -h)
You have m = 1/8, and (h, k) = (-8, 10).
Putting those numbers in the form gives ...
y -10 = 1/8(x -(-8))
You can simplify the double minus sign so you have ...
y -10 = 1/8(x +8)
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<em>Additional comment</em>
A lot of math is about matching patterns and making substitutions. This is a good example of that.
An equation whose roots are x=3 and x=11 is
|(x-3)(x-11)|=0
We can check that, plugging in x=3 or x=11, makes both sides of the equation equal.
