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dimulka [17.4K]
1 year ago
12

Evaluate 3x for x = -2, x = 1, and x = 3.

Mathematics
2 answers:
xenn [34]1 year ago
8 0

Answer: A. 1/9, 3, 27

Step-by-step explanation:

3^x for x = -2

= 3^-2 = 1/9

3^x for 1

= 3^1 = 3

3^x for 3

= 3^3 = 27

hope this helped

marusya05 [52]1 year ago
5 0
Option A is correct.

Put the values of x in 3^x and you will get the answer corresponding to option A
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Insert one pair of bracket to make this calculation correct .<br> 7 - 5 - 3 + 4 = 9
trasher [3.6K]
7-(5-3)+4=9 is the answer
3 0
2 years ago
The area of a parallelogram is 31. 5 ft2 and the height is 6. 3 ft. What is the length of the base? 36 ft 24 ft 10 ft 5 ft.
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If the area of a parallelogram is given as with a height of , we can refer back to the equation for the area of a parallelogram: \displaystyle A= b \cdot h, where is height and is the length of the base.
4 0
1 year ago
Given the set of numbers (3, 5, 7, 11, 23), what number must be added to the set so that the median of the 6 numbers is 9? what
Gennadij [26K]
Easy

median is the number in the middle when they are arranged in increasing numerical order
example
1,2,3
median is 2 becaus it is in middle
1,4,6,7,8
6 is median

if you have an even amount then average the middle two
1,3,5,7
median is the mean of 3 and 5 which is 4

so

3,5,7,11,23
median is 7 right now
there are an odd amout of numbers
adding 1 will result in even
to find the median of even set of numbers, average the 2 middle ones
right now 7 is center
the mean of 5 and 7 is 6
the mean of 7 and 11 is 9
we want a mean of 9
so add any  number greater than or equal to 11
3,5,7,11,12,23 is one option
3,5,7,11,23,50 is another



mean is 9
mean is the average of them
x is the number to be added
6 numbers will be the set since there are 5 now and adding 1 will get 6
(3+5+7+11+23+x)/6=9
(49+x)/6=9
times both sides by 6
49+x=54
minus 49 both sides
x=5

the number added must be 5



to make the median of the 6 numbers 9, add any number greater than or equal to 11, such as 12 or 234

to make the mean 9, add 5 to the set
7 0
3 years ago
I need help, quick, it's Algebra but super easy, thank you.
horsena [70]
16 - 2(2w + 1) = 8w - 2(8+w)
     16 - 4w - 2 = 8w - 16 - 2w
       - 4w + 14 = 6w - 16
                  14 = 10w - 16
                  30 = 10w
                  /10    /10
                     3 = w

I think so lol
3 0
3 years ago
Read 2 more answers
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