Here a = 2, b = -2, c = -1
b^2-4ac = (-2)^2 - 4(2)(-1)
= 4 +8
= 12
24 students are left. 1/3 of 90 is 30 leaving 60 kids to give their speeches the next day. 2/5 of the rest of the students will be left after today when 3/5 give their speeches. so .4 * 60= 24
Answer:
m∠1 = 67
Step-by-step explanation:
Dividing 3.6 by 0.25 follows the following generic approach : You have
to firstly need to multiply both divisor and dividend by that number
such that the divisor becomes a whole number first .
So we multiply both dividend and divisor by 100 such that the problem converts to 3.6*100/0.25*100 = 360 being divided by 25 .
So the approach to divide a number froma decimal number is to first
convert problem into dividing the number from a whole number , by
multiplying both the number and divisor from the approriate number .
Which was in above problem comes out to be 100 .
Answer:
4.444444
Step-by-step explanation:
