By percent, how much greater do sales of horror books appear to be than sales of cookbooks? How much greater are they in reality? a. There appear to be 50% more sales of horror books than cookbooks, but there are really only about 20% more. b. There appear to be 40% more sales of horror books than cookbooks, but there are really only about 5% more. c. There appear to be 20% more sales of horror books than cookbooks, but there are really only about 10% more. d. There appear to be 25% more sales of horror books than cookbooks, but there are really only about 2% more.

the answer is a

step-by-step explanation:

1.true 2.false? ? i think. .

step-by-step explanation:

the largest number of the four options is 1.8 x 10-2

you have it in scientific notation.

1.80 x 10-6   = 0.00000180

1.80 x 10-4   = 0.000180 (bigger, or "less small", than the former one)

so

1.8 x 10-2       = 0.0180. as you see. the "less small", or the biggest one of them all.

as you have negative exponent, it means you are dividing 1.8 by 100 (i.e. moving the dot towards left, two times).

if you had positive exponent for the scientific notation, power of tenths, you would be multiplying times 100 (moving the dot towards right) as below:

1.8 x (10)2 = 180

so. if you have negative exponent in scientific notation, move the dot toward left. if it is positive, toward right as many times the exponent tells you.

write out the polynomial, with leading coefficient 1:

y = 1 (x+2)^1 (x-7)^1 (x-5)^2

next time, share the answer choices.   .