Ahuge ice glacier in the himalayas initially covered an area of 45 square kilometers. because of changing weather patterns, this glacier begins to melt, and the area it covers begins to decrease exponentially.

the relationship between a, the area of the glacier in square kilometers, and t, the number of years the glacier has been melting, is modeled by the following equation.

a=45e^(-0.05t)

how many years will it take for the area of the glacier to decrease to 15 square kilometers?

answer quickly: worth 35 points

Alength on a map is 7.5 inches. thescale is 1 inch: 5 miles. what is theactual distance? a 1.5 miles c 12.5 milesb 2.5 miles d 37.5 miles

Lems1. the following data set represents the scores on intelligence quotient(iq) examinations of 40 sixth-grade students at a particular school: 114, 122, 103, 118, 99, 105, 134, 125, 117, 106, 109, 104, 111, 127,133, 111, 117, 103, 120, 98, 100, 130, 141, 119, 128, 106, 109, 115,113, 121, 100, 130, 125, 117, 119, 113, 104, 108, 110, 102(a) present this data set in a frequency histogram.(b) which class interval contains the greatest number of data values? (c) is there a roughly equal number of data in each class interval? (d) does the histogram appear to be approximately symmetric? if so,about which interval is it approximately symmetric?

Divide. reduce the answer to lowest terms.5 2/3 ÷ 3 1/9