If x=girls,
then we have 3x boys.
We know that all children are boys+girls, so x+3x, which is 4x and 4x is 48, so one x is 12.
So there are 12 girls and 36 boys.
Check the picture below.
notice, go around a full circle "clockwise", or backwards, we'd get the negative angles, a full circle will be -2π, go around again, and is -2π-2π or -4π.
now, notice the last bit, the red angle, we went around -π more after the -4
π, which makes it -5π.
therefore, the cot(-5π) is the same value as the cot(π),
meaning it doesn't have one.
Answer:
C. None of the above
Step-by-step explanation:
<u><em>Which expressions are equivalent to -f-5(2f-3)−f−5(2f−3) ?
</em></u>
<u><em>A. -11f - 3
</em></u>
<u><em>B. -11f + 15
</em></u>
<u><em>C. None of the above</em></u>
To find the expressions that are equivalent to -f-5(2f-3)−f−5(2f−3), we will follow the steps below:
-f-5(2f-3)−f−5(2f−3)
lets start by opening the parentheses
-f -10f+ 15-f-10f + 15
add the like terms together
-f -10f-f-10f + 15+ 15
-22f + 30
The expression -f-5(2f-3)−f−5(2f−3) is equivalent to -22f + 30
Therefore non of the first to option is equivalent to the given expression, hence the correct option is c. none of the above
Hi!
Nine more = 9 +
Quotient of a number and 7 = y/7
Equal to three = = 3
Put it together:
9 + y/7 = 3
^ the answer
Bonus points if you can tell me what y equals ;)
Hope this helps! :)