Multiply (2.0 ⋅ 10−4) ⋅ (3.1 ⋅ 10−20). express the answer in scientific notation.

What is f(3) for the quadratic functionf(x)=2x2 + x – 12? f -3g 3h 6i. 9

The ratio of the measures of the three angles in a triangle is 2: 9: 4. find the measures of the angels

80 points suppose marcy made 45 posts online. if 23 of them contained an image, what percent of her posts had images? round your answer to the nearest whole percent. 54 percent 51 percent 49 percent 48 percent