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Olegator [25]
4 years ago
6

Ana took Ali out for lunch. Their lunches cost $13.28 and $14.25, including tax and tip. Ana paid with two $20 bills. How much c

hange did Ana receive?
Mathematics
1 answer:
Lelu [443]4 years ago
7 0

Answer:

$12.47

Step-by-step explanation:

The total charge was ...

... $13.28 +14.25 = $27.53

The change from 2 $20 bills is ...

... 2 × $20 - 27.53 = $40.00 -27.53 = $12.47

You might be interested in
F(x)=x^2. what is g(x)? NEED ASAP WILL MARK BRAINLIEST
Bess [88]

Answer:

g(x)= \frac{1}{9} \times x^2

Step-by-step explanation:

Here we can see that the parent function is f(x)=x^2 and the translated function is g(x). f(x) is a parabola.

Rule says that any factor if multiplied by f(x) is going to contract the graph towards the y axis and vice versa.

Similarly any factor if  f(x) is divided by some factor it is going to be stretch the graph away from the y axis and vice versa.

Here we can see that the translated graph g(x) is stretched away from the y axis with reference to the parent function f(x). Hence as per he rule discussed above, we get a preliminary information that the parent function f(x) is being divided by some factor.

now we are given that

f(x) = x^2

f(3) = 3^2 = 9

Where as

g(3) = 1  {as given in the graph}

Hence

at x=3 , f(x) = 9 and g(x) = 1 , and also we have discussed above that f(x) is divided by some factor. Hence g(x)= \frac{1}{9}f(x)

g(x)= \frac{1}{9} \times x^2

6 0
3 years ago
what is the smallest positive integer a such that the intermediate value theorem guarantees a zero exists between 0 and a?
liberstina [14]

The smallest positive integer that the intermediate value theorem guarantees a zero exists between 0 and a is 3.

What is the intermediate value theorem?

Intermediate value theorem is theorem about all possible y-value in between two known y-value.

x-intercepts

-x^2 + x + 2 = 0

x^2 - x - 2 = 0

(x + 1)(x - 2) = 0

x = -1, x = 2

y intercepts

f(0) = -x^2 + x + 2

f(0) = -0^2 + 0 + 2

f(0) = 2

(Graph attached)

From the graph we know the smallest positive integer value that the intermediate value theorem guarantees a zero exists between 0 and a is 3

For proof, the zero exists when x = 2 and f(3) = -4 < 0 and f(0) = 2 > 0.

<em>Your question is not complete, but most probably your full questions was</em>

<em>Given the polynomial f(x)=− x 2 +x+2 , what is the smallest positive integer a such that the Intermediate Value Theorem guarantees a zero exists between 0 and a ?</em>

Thus, the smallest positive integer that the intermediate value theorem guarantees a zero exists between 0 and a is 3.

Learn more about intermediate value theorem here:

brainly.com/question/28048895

#SPJ4

4 0
2 years ago
What number is 80% of 66
Anni [7]
52.8 is the answer.


Hope this helps!
4 0
4 years ago
The mass of Earth is approximately 5.9 x 1024 kg and the mass of Venus is approximately 4.9 x 1025 kg. What is their total combi
hodyreva [135]
I'm not sure if that's the correct method of finding that (it could be, I was just never shown that kind of method). What I did was multiply everything out, that way you have two numbers vs two equations. Then add those two numbers and turn that into scientific notation.
4 0
3 years ago
Let S represent the number of randomly selected adults in a community surveyed to find someone with a certain genetic trait.
baherus [9]
The answer is: C (I took the test)
8 0
3 years ago
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