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garik1379 [7]
3 years ago
7

Can you answer these questions I need them today 10 points if you do

Mathematics
1 answer:
quester [9]3 years ago
4 0
#1.) A rational number is a number that can be written as a ratio. That means it can be written as a fraction, in which both the numerator (the number on top) and the denominator (the number on the bottom) are whole numbers. The number 8 is a rational number because it can be written as the fraction 8/1.

I don't want to give you the answer cause that will not help you I'm the future If I just give it to you. It might help you but that's what I learned in school is that it doesn't help. Because like if you cheat on a test you won't get to learn. But if you did it yourself and got it wrong you can see why
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Divide using synthetic division, and write a summary statement in fraction form. 2x^4-x^3-15x^2+3x/x+3
aev [14]
So... first off, we sort the dividend, the numerator, in descending order... so, looking at the exponents in this one, is already sorted in descending order, from 4 down to 1, so that's done.

then the divisor, we have x+3, that means x + 3 = 0, x = -3,
so, we'll be using -3 for the synthetic division then.

\bf \cfrac{2x^4-x^3-15x^2+3x}{x+3}\\\\
-------------------------------\\\\

\begin{array}{r|rrrrrrrrrl}
-3&&2&-1&-15&3\\
&&&-6&21&-18\\
--&&-&--&--&--\\
&&2&-7&6&\boxed{-15}&\leftarrow remainder
\end{array}

and now, we'll use those coefficients, dropping the exponents of the polynomial by one, and the remainder, remains as a fraction with the divisior of x+3.

\bf 2x^3-7x^2+6x-\frac{15}{x+3}
6 0
3 years ago
Can someone help me from one two four please
Lunna [17]

1. 15 / 1/3

When dividing, the second fraction flips over .

15* 3/1= 45/1= 45

2. 24 / 1/6

24*6= 144

4. 7/12 / 1/3

7/12*3/1

Cross out 3 and 12, divide by 3

12/3= 4

3/3= 1

7/4* 1/1. Multiply the numerator together. Multiply the denominators together.

7*1= 7

4*1= 4

7/4 or 1 3/4

Answers :

1. 45

2. 144

4. 7/4 or 1 3/4

7 0
3 years ago
Read 2 more answers
The value of varies directly with . If = 4, then = 12. What is the value of when = 6?
kodGreya [7K]
Write the correct equation. Direct variation problems are solved using the equation y = kx. When dealing with word problems, you should consider using variables other than x and y, you should use variables that are relevant to the problem being solved. Also read the problem carefully to determine if there are any other changes in the direct variation equation, such as squares, cubes, or square roots.
4 0
2 years ago
A dentist polls his patients and finds that 83 percent brush their teeth at least twice a day, 47 percent floss daily, and 19 pe
ella [17]

Answer: 23%

Step-by-step explanation: just is rate me good bye

7 0
2 years ago
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(-1)3 exponet is 3 help me please i dont want to fail
Natali5045456 [20]

Answer:

-1

i do not remember how to solve this but i just answered a question that had this problem in it on my algebra test and that is the right answer

8 0
3 years ago
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