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Artyom0805 [142]
3 years ago
7

Kennedy saves $5.50 for each hour she works. She need to save an additional $44 to buy an E-reader. How many more hours does Ken

nedy need to work to pay for the E-reader?
Mathematics
1 answer:
Shalnov [3]3 years ago
6 0
The answer tou your question is 8 more hours
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Where is the vertex of the parabola?
RideAnS [48]

Answer:

ABOVE the x-axis

Step-by-step explanation:

Please use "^" to denote exponentiation:  y = x^2 + 2x + 3

To find the vertex, we must complete the square of y = x^2 + 2x + 3, so that we have an equivalent equation in the form f(x) = (x - h)^2 + k.

Starting with  y = x^2 + 2x + 3,

we identify the coefficient of x (which is 2), take half of that (which gives

us 1),  add 1 and then subtract 1, between "2x" and "3":

y = x^2 + 2x + 1 - 1 + 3

Now rewrite x^2 + 2x + 1 as (x + 1)^2:

y = (x + 1)^2 - 1 + 3, or y = (x + 1)^2 + 2.  Comparing this to f(x) = (x - h)^2 + k, we see that h = 1 and k = 2.  This tells us that the vertex of this parabola is at (h, k):  (1, 2), which is ABOVE the x-axis.

8 0
3 years ago
Which of the following graphs could represent a cubic function?
Andru [333]
The answer would be graph (A)
The equation for this function is,
f(x) =  {x}^{3}
Once you find different points around the graph it will end up looking like graph (A)

Hope this helped
:D
5 0
3 years ago
Read 2 more answers
What is the domain of the function shown on the graph?
Artist 52 [7]

Answer:

C. -∞ < x < ∞

Step-by-step explanation:

Domain is the set of x-values that can be inputted into function f(x).

We see that our x-values can be any number. Therefore, we have all real numbers as our domain:

(-∞, ∞) or -∞ < x < ∞

8 0
3 years ago
The numbers 1 to 12 must be placed in the circles of the star shown on the right. The sums of the numbers in each row, and the s
gulaghasi [49]

Answer:

The numbers 1 to 12 must be placed in the circles of the star shown on the right. The sums of the numbers in each row, and the sum of the numbers in the six outer circles of the star, must be equal to 26. Arrange the numbers accordingly.

4 0
1 year ago
A cone has a height 25 ft and a radius of 7 ft. Is a reasonable that the volume of this cone is 100 ft3? Why or why not?​
Nostrana [21]

Answer:

No

Step-by-step explanation:

the radius squared is 49 times π, which is roughly 3 means the area of the base is roughly 150 ft².

This means that one third of the height cannot be more than 100 / 150 = 2/3 of a foot. That makes the height about 2 ft, much less than the reported 25 ft.

3 0
3 years ago
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