Forty-seven and five tenths.
47 = forty-seven
. = and
.5 = five tenths
I’m not sure if this is how you do it but:
2(8a - 12)
4(4a - 6)
8(2a - 3)
??
you need to change 1 3/8 into a mixed fraction, which would be 11/8, but with this fraction, you need to do the reciprocal, which would be 8/11 multiplied by 3/4. You can cross simplify 8 and 4 changing the fractions being multiplied to 2/11 and 3/1. Then you need to multiply straight across, which would get an answer of 6/11.
Answer:
Step-by-step explanation:
y^2-25 factored is (y+5)(y-5)
y^2+2y-24 factored is (y-4)(y+6)
340 is (340-380)/20=-2, or 2 standard deviations below the mean.
420 is (420-380)/20=2, or 2 standard deviations below the mean.
95% of values lie within 2 standard deviations of the mean, so the answer is 95%.