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torisob [31]
2 years ago
13

If Robert has $45 and has decided to double that amount every month, how much money will he have after 16 months? Robert’s earni

ngs can be described by the function y = 45 * 2x.
Mathematics
1 answer:
vodka [1.7K]2 years ago
5 0
Your answer is 1440 , You just fill in x with 16 months and then multiply and you will get your answer
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What are the zeros of f(x) = x2 - 8x + 16?
dolphi86 [110]

x² - 8x + 16 = 0

(x - 4)^2 = 0

x = 4

Answer: One zero, x=4

8 0
2 years ago
Solve each equation:
omeli [17]
You sure seem to be asking a lot of questions lately. I'd like to see that you've been trying with these problems at least because if you can't get that first one it's almost like you missed the whole lesson.

1. 20 = 4b + 7 + 5
Add the 7 and 5.
20 = 4b + 12
Subtract 12 from each side.
8 = 4b
Divide each side by 4.
2 = b

2. 7 = 6k - 7k
6k - 7k = -1k. (the k acts as a sort of unit)
7 = -1k
Divide each side by -1.
-7 = k

3. 3.23 - 2m = 3 - 2(5m - 2)
Distribute the ×-2 to each term inside the parentheses.
3.23 - 2m = 3 - 10m + 4
Add the 3 and 4.
3.23 - 2m = 7 - 10m
Add 10m to each side.
3.23 + 8m = 7
Subtract 3.23 from each side.
8m = 3.77
Divide by 8.
m = 0.47125

4. -88/45=1/3r+2/5r
To get rid of the fractions, let's multiply everything by 45.
-88 = 15 + 18r
Subtract 15 from each side.
-103 = 18r
Divide by 18.
-103/18 = r
As a mixed number, r = -5 and 13/18
As a decimal, r = -5.7222...
6 0
3 years ago
What point on the line y=9x+8 is closest to the origin
Marat540 [252]

to find the point, find the location

realize that the shortest line that crosses through the origin and y=9x+8 is perpendicular to y=9x+8

perpendicular lines have slopes that multiply to get -1

y=9x+8 has a slope of 9

9*m=-1, m=-1/9

the slope of the mystery line is -1/9

since it passes through the origin, the y intercept is 0

y=(-1/9)x is the equation of the line from the point to the origin

find the intersection of this line and the original line

set them equal to each other

(-1/9)x=9x+8

multily both sides by 9

-x=81x+72

minus 81 both sides

-82x=72

divide both sides by -82

x=-36/41

find y

y=(-1/9)x

y=(-1/9)(-36/41)

y=4/41

the point is (\frac{-36}{41},\frac{4}{41})

3 0
2 years ago
What times what equals 49
Stolb23 [73]
Seven times seven equals forty nine
3 0
3 years ago
Find the volume of the cone. when r=6 and h=4 Either enter an exact answer in terms of pi or use 3.14 point and round your final
Ksenya-84 [330]
4*3.14=12.56
h=12.56 this is the answer
7 0
2 years ago
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