Answer:
720
Step-by-step explanation:
Since 10 different things in one week,
10
p
7
=>10!/7!
=>720
Answer:
x=15°
Step-by-step explanation:
Angles ∠2 and ∠4 are supplementary, so ∠2+∠4=180°
That equals to 2x+10+4x+80=180.
You can solve that equation to find what <em>x</em> is equal to.
2x+10+4x+80=180
6x+90=180
6x=90
x=15°
If you would like to expand the expression 7 * (9 * x - 2), you can do this using the following steps:
7 * (9 * x - 2) = 7 * 9 * x - 7 * 2 = 63 * x - 14
The correct result would be 63 * x - 14.
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