1.
(1 pt)
which pair is a base and corresponding height for the triangle?
a.
b = 16 units and h = 9.6 units
b.
b = 20 units and h = 16 units
c.
b = 20 units and h = 9.6 units
d.
b = 20 units and h = 12 units
2.
(1 pt)
what is the area of the triangle?
a.
208 in2
b.
192 in2
c.
104 in2
d.
96 in2
3.
(1 pt)
what is the area of the triangle?
a.
42.14 cm²
b.
35.28 cm²
c.
21.07 cm²
d.
17.64 cm²
4.
(1 pt)
the county animal park is shaped like a triangle. two perpendicular sides of the park measure 2.3 miles and 3.4 miles.
what is the area of the animal park?
a.
3.91 mi²
b.
5.7 mi²
c.
7.82 mi²
d.
11.4 mi²
5.
(1 pt)
what is the area of a triangle with a base of 4.6 cm and a height of 7.8 cm?
a.
12.4 cm²
b.
17.94 cm²
c.
24.8 cm²
d.
35.88 cm²

In this problem, we explore the effect on the standard deviation of multiplying each data value in a data set by the same constant. consider the data set 14, 6, 8, 15, 15. (a) use the defining formula, the computation formula, or a calculator to compute s. (round your answer to one decimal place.) s = 4.28 (b) multiply each data value by 3 to obtain the new data set 42, 18, 24, 45, 45. compute s. (round your answer to one decimal place.) s = 12.83 (c) compare the results of parts (a) and (b). in general, how does the standard deviation change if each data value is multiplied by a constant c? multiplying each data value by the same constant c results in the standard deviation remaining the same. multiplying each data value by the same constant c results in the standard deviation being |c| times as large. multiplying each data value by the same constant c results in the standard deviation increasing by c units. multiplying each data value by the same constant c results in the standard deviation being |c| times smaller. (d) you recorded the weekly distances you bicycled in miles and computed the standard deviation to be s = 3.8 miles. your friend wants to know the standard deviation in kilometers. do you need to redo all the calculations? yes no given 1 mile ≠1.6 kilometers, what is the standard deviation in kilometers? (enter your answer to two decimal places.)