Which statement best describes the graph of -x - x2 + 4x + 4?
It starts down on the left and goes up on the right and intersects the x-axis at x=-2, 2, and 4.
it starts down on the left and goes up gn the right and intersects the x-axis ax=-2, -1, and 2
It starts up on the left and goes down on the right and intersects the x-axis at x=-2-1, and 2.
It starts up on the left and goes down on the right and intersects the x-axis at x = -2, 2, and 4.

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.

Suppose a laboratory has a 30 g sample of polonium-210. the half-life of polonium-210 is about 138 days how many half-lives of polonium-210 occur in 1104 days? how much polonium is in the sample 1104 days later? 9; 0.06 g 8; 0.12 g 8; 2,070 g

The weight of 46 new patients of a clinic from the year 2018 are recorded and listed below. construct a frequency distribution, using 7 classes. then, draw a histogram, a frequency polygon, and an ogive for the data, using the relative information from the frequency table for each of the graphs. describe the shape of the histogram. data set: 130 192 145 97 100 122 210 132 107 95 210 128 193 208 118 196 130 178 187 240 90 126 98 194 115 212 110 225 187 133 220 218 110 104 201 120 183 124 261 270 108 160 203 210 191 180 1) complete the frequency distribution table below (add as many rows as needed): - class limits - class boundaries - midpoint - frequency - cumulative frequency 2) histogram 3) frequency polygon 4) ogive