Answer:
b)−2° C
Step-by-step explanation:
hello! To solve this problem you should remember how are the operations with negative numbers, for this the only thing we must do is make a subtraction between the initial temperature (8° C) and the negative change of temperature (10° C)
Ti= initial temperature =8° C
ΔT= temperature change =10° C
new temperature=Ti-ΔT
new temperature=8° C-10° C=-2° C
in conclusion the answer is -2° C
Answer:

Step-by-step explanation:
Please see the attached picture for the full solution.
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The answer would be B-D-F
Answer:
g(0)=4^0 = 1
g(1) = 4^1 = 4
g(2) = 4^2 = 16
Average :
(1+4+16)/3
=(5+16)/3
=21/3
= 7
Take a sum, divide by 3 because the counted datas are 3.
Choice A is the answer
Focus on the stem and leaf plot
In row 1 we have 1.6, 1.5 and 1.5
In row 2,we have 2.1, 2.1 and 2.1
In row 3, we have 3.6 and 3.5
So the data values are: 1.5, 1.5, 1.6, 2.1, 2.1, 2.1, 3.5, 3.6
Side Notes:
We can rule out choice B because 3.7 is not a data value (there is no "7" anywhere in the leaves)
We can rule out choices C and D because they aren't even decimal values matching the format mentioned in the key of the stem and leaf plot.