3 4 5 6 7 8 9 10 TIME REMAINING
55:15
Suppose the temperature increases 8º to -7ºF. What was the starting temperature?
a.
15º
c.
-13º
b.
-20º
d.
-15º

Please select the best answer from the choices provided

A
B
C
D

If it INCREASES then it is going closer towards zero since it is negative. So subtract 8 from (-7) and you get -15

so D is your answer

see attached

step-by-step explanation:

given the function as;

write the equation replacing f(x) with y

form   and fill a table containing values of y with corresponding values of x

you can take a range for   values of x as -3≤x≤3

solving for x=-3

for x=-2

repeat the same procedure to get the values of y for the remaining ,x=-1 to x=3

plot the values of y against values   of x and obtain the following graph

hello,

b) 62.47% of the students are between 14 and 18 years old.

step-by-step explanation:

mean = 15 and standard deviation = 2

student between 14 to 18

formula used z-score

for age 14 , z score

using z-table , p(z> -0.5)=0.3085

for age 18 , z score

using z-table , p(z< 1.5)=0.9332

p(-0.5< z< 1.5)=0.9332-0.3085 = 0.6247

thus, 62.47% of the students are between 14 and 18 years old.

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step-by-step explanation: