Sherry and Karl both started their hike with a small bottle filled with water. Tia started her hike with a larger bottle that was ½ full. At the end of the hike, Sherry and Tia's bottles were each half filled with water. Karl's bottle was ⅓ filled with water. Who has the most water left? Construct a math argument to support your answer.
Answers
Answer:
Sherry is the wonner,winner, kark is burning
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Answers
From a list of ten books, 210 ways to select a group of 4 books.
What is a combination?
A combination is a selection of all or a portion of a group of items, regardless of the sequence in which the items are chosen.
The number of ways to select a group of 4 books from a list of 10 books can be calculated using the combination formula:
nCr = n! / (r! x (n-r)!)
Where n is the total number of items (in this case, 10 books) and r is the number of items to be selected (in this case, 4 books).
Plugging in the values, we get:
10C4 = 10! / (4! x (10-4)!)
= 10! / (4! x 6!)
= (10 x 9 x 8 x 7) / (4 x 3 x 2 x 1)
= 210
Therefore, there are 210 ways to select a group of 4 books from a list of 10 books.
To learn more about the combination;
#SPJ3
First you have all ten books, but then every time after, you loose one because you can't put the same book in the group twice.
10 * 9 * 8 * 7 = 5040 groups
A)
(3x - 5)(9x2 – 15x + 25)
B)
(3x - 5)(9x2 + 15x – 25)
0
(3x + 5)(9x2 - 15x + 25)
D)
(3x + 5)(9x2 + 15x – 25)
I need help solving this please
Answers
Answer:
your answer would be C hope it helps
Answers
Answer:
The required quadratic function is .
Step-by-step explanation:
The standard form of the parabola is
Where the focus is (h, k + p) and the directrix is y = k - p.
The directrix of y = 2 and a focus of (3, −4).
On comparing both sides we get
...... (1)
...... (2)
Add equation (1) and (2).
Substitute k=-1 in equation (1).
Therefore the equation of parabola is
It can be rewritten as
Therefore the required quadratic function is .
4(-3)(y+1)=(x-3)^2
y+1=(-1/12)(x-3)^2
y=(-1/12)(x-3)^2-1
Answers
Answer:
n = 12
Step-by-step explanation:
8 + (12) = 20
Answer:
20.
Step-by-step explanation:
To find the value of "n" in the equation 8 + n = 20, we can use the concept of solving for an unknown variable.
To isolate "n" on one side of the equation, we can subtract 8 from both sides:
8 + n - 8 = 20 - 8
This simplifies to:
n = 12
Therefore, the value of "n" in the equation 8 + n = 20 is 12.
In this equation, the value of "n" is 12 because when we add 8 to it, the result is 20.
x^2+6x+4= -2x+4
Answers
Answer:
0,-8
Answer explanation:
x^2+6x+4=-2x+4
or, x^2+6x+4+2x-4=0
or, x^2+8x=0
Therefore, x(x+8)=0
Either,
x=0
or,
x+8=0
x=-8
hence,x=0, -8
Answers
Answer:
84
Step-by-step explanation:
The key to understanding these problems is having a firm idea about what the variables represent. The variable r, for example, has units of shoppers per minute. This means you will need to divide the number of shoppers by total minutes to calculate variable r.
Example:
“Little’s law can be applied to any part of the store, such as a particular department or the checkout lines. The store owner determines that, during business hours, approximately 84 shoppers per hour make a purchase and each of these shoppers spend an average of 5 minutes in the checkout line. At any time during business hours, about how many shoppers, on average, are waiting in the checkout line to make a purchase at the Good Deals Store?”
Let’s match units to variables:
“…shoppers spend an average of 5 minutes…” This sounds like the description of variable T. We now know that T = 5 in our problem.
“…approximately 84 shoppers per hour…” is close to the units needed for r; however, r is in shoppers per minute, not hour. To fix this, we convert 84 shoppers / 60 minutes = 1.4. We know that r = 1.4.
We want to know, “…about how many shoppers, on average…,” which are the units for N.
This paragraph was a long-winded way of asking you to solve for N! The actual math involved in this problem looks like the following:
N = rt
N = (1.4)(5)
N = 7