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abruzzese [7]
3 years ago
5

Aron wrote the function f(x)=25x-15 find the amount of money he would make after washing x cars. Select all that are in the doma

in of Aron’s function.
A-2
B-2.3
C-5
D-7.1
E-10
Mathematics
1 answer:
My name is Ann [436]3 years ago
4 0

Answer:

A. 2


C. 5


E. 10

Step-by-step explanation:

If x represents the number of cars that wash Aron then the domain of x must contain only the whole and positive numbers (natural numbers)


This, because Aron can not wash -4 cars, it would be absurd then that x was a negative number.


In the same way Aron can not wash 1.57 cars. Or washed 1 car or washed 2, it is not consistent in this case to say that washed a car and a half, for example.


Therefore the correct answer is the options


A. 2


C. 5


E. 10

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DochEvi [55]

Answer5

Step-by-step explanation:

6 0
3 years ago
I don’t know what to do
n200080 [17]

Answer:

x = 7

y = 12

Step-by-step explanation:

To do this question you have to know your exponent rules, but also you need to know how to add fractions.

To multiply

6^(1/3) × 6^(1/4)

you can keep the 6 and just add the exponents.

That's why the answer is set up on the form 6^(x/y)

To add fractions, you need a common denominator, it is 12.

1/3 is 4/12.

1/4 is 3/12.

So 1/3 + 1/4

is the same as:

4/12 + 3/12

= 7/12

7/12 is the exponent you are looking for.

x = 7 and y = 12.

6^(1/3) × 6^(1/4)

=6^(7/12)

4 0
2 years ago
On the first day of school, the cafeteria serves hot dogs and hamburgers together. The cafeteria serves hot dogs every 6th schoo
kumpel [21]

Answer:

The Answer is 12 days or times.

Step-by-step explanation:

The LCM of 6 is 3 and 2, the LCM of 4 is 2 and 1, so we multiply 3 by 2 and 4 by 2 together to get 12, which is the number of days or times.

5 0
3 years ago
Find the least common denominator for these two rational expressions. B/b^2 -64 -7b/b^2+7b-8
san4es73 [151]

Answer:

The least common denominator is (b-8)(b+8)(b-1)

Step-by-step explanation:

We are given expression as

\frac{b}{b^2-64}-\frac{7b}{b^2+7b-8}

Firstly, we will factor both denominators

b^2-64=b^2-8^2=(b-8)(b+8)

b^2+7b-8=(b+8)(b-1)

so, we can plug it back

\frac{b}{(b-8)(b+8)}-\frac{7b}{(b+8)(b-1)}

First term denominator is

(b-8)(b+8)

Second term denominator is

(b+8)(b-1)

So,

Least common denominator will be

(b-8)(b+8)(b-1)

So, we get

LCD=(x-8)(x+8)(x-1)


3 0
3 years ago
I need help! <br> *accidentally clicked 64 don’t know if it’s right tho*
Murljashka [212]

Answer:

72

Step-by-step explanation:

8 times 9 is 72

8 0
3 years ago
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