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AleksAgata [21]
3 years ago
15

Olivia spent $18.00 of the $21.00 from

Mathematics
1 answer:
nexus9112 [7]3 years ago
3 0

Answer:

6/7

Step-by-step explanation:

18/21 dollars is simplified when you divide the fraction by 3 on each number. So you get 6/7 of her money was spent.

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In the figure, the radius of the partial circle with center Ais 4 feet.
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3 years ago
What is the answer to this question I am really having trouble ??
masya89 [10]
<h3>Answer: Choice B</h3><h3>y = x^2 + 7x + 1</h3>

======================================

Proof:

A quick way to confirm that choice B is the only answer is to eliminate the other non-answers.

If you plugged x = 1 into the equation for choice A, you would get

y = -x^2 + 7x + 1

y = -1^2 + 7(1) + 1

y = -1 + 7 + 1

y = 7

We get a result of 7, but we want 9 to be the actual output. So choice A is out.

-----------

Repeat for choice C. Plug in x = 1

y = x^2 - 7x + 1

y = 1^2 - 7(1) + 1

y = 1 - 7 + 1

y = -5

We can eliminate choice C (since again we want a result of y = 9)

-----------

Finally let's check choice D

y = x^2 - 7x - 1

y = 1^2 - 7(1) - 1

y = 1 - 7 - 1

y= -7

so choice D is off the list as well

-----------

The only thing left is choice B, so it must be the answer. It turns out that plugging x = 1 into this equation leads to y = 9 as shown below

y = x^2 + 7x + 1

y = 1^2 + 7(1) + 1

y = 1 + 7 + 1

y = 9

And the same applies to any other x value in the table (eg: plugging in x = 3 leads to y = 31, etc etc).

3 0
3 years ago
Put these fractions in order from smallest to largest 3/10 2/5 3/8
miss Akunina [59]

3/10 , 3/8 , 2/5

that's all

4 0
2 years ago
Evaluate 32 - 4 ^ 2 ÷ 4
netineya [11]

Answer:

28

Step-by-step explanation: 32 - 4 ^2 /4

3 0
3 years ago
Read 2 more answers
The expression 3(x - 9) is equivalent to....
MrMuchimi

Answer:

d

Step-by-step explanation:

3(x - 9)

3×x - 3×9

3(x) - 3(9)

3 0
3 years ago
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