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Ket [755]
3 years ago
13

What is 2 8/15+ 1 1/30

Mathematics
2 answers:
Andrei [34K]3 years ago
8 0
The answer is 3 17/30
Mice21 [21]3 years ago
3 0

Answer:

3 17/30

Step-by-step explanation:

In order to do this problem, we have to get the two fractions to have the same denominator

So we change 2 8/15 into 2 16/30 (multiplying both the numerator by 2, if you don't know why this works then ask me) and then we just add. So 2 16/30 + 1 1/30 = 3 17/30

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Please help me with these problems Thank You so much!
Radda [10]
Where r the problems
8 0
3 years ago
(8 + 5r3 - 2r2) - (8r - 8 - 6r2)<br> Simplify expression
Bingel [31]

Answer:

5r^3 + 4r^2 - 8r + 16

Step-by-step explanation:

(8 + 5r^3 - 2r^2) - (8r - 8 - 6r^2) =

The first set of parentheses is there just to show you that what is inside is a polynomial. The second set of parentheses has a second polynomial inside. The subtraction sign just to the left of the second set of parentheses shows that you are subtracting the second polynomial from the first one.

The first set of parentheses is not needed and can be dropped.

You are subtracting the second polynomial fromt he first one, so you can think of the the subtraction sign as a -1, and you need to distribute the -1 by the second polynomial, That will result in all signs inside the second set of parentheses changing.

Below, just the first set of parentheses is removed.

= 8 + 5r^3 - 2r^2 - (8r - 8 - 6r^2)

Now, we change every sign inside the second set of parentheses by distributing -1.

= 8 + 5r^3 - 2r^2 - 8r + 8 + 6r^2

Now we need to combine like terms. Like terms have the same variable part. We can rearrange the terms grouping like terms together before combining them. Also, it is customary to list the terms in descending order of degree.

= 5r^3 - 2r^2 + 6r^2 - 8r + 8 + 8

Now we combine like terms.

= 5r^3 + 4r^2 - 8r + 16

6 0
3 years ago
Can someone pls help
ohaa [14]

Answer:

C

Step-by-step explanation:

4(5)+10-12=18

7 0
3 years ago
Suppose we build a multinomial logistic model using a dataset with 1,000 observations. The model contains only the Intercept ter
aalyn [17]

Answer:

The intercept can be determined by a graphical method.

Step-by-step explanation:

Data:

Target Category              I   II        III        IV       V

Frequency                     64   250 364     259    63

The number of observations, n, = 1 000

The most possible solution is to plot a graph of Frequency against the target category and find the linear corresponding figure.

7 0
3 years ago
The product of (n2 – 6n + 3) and -4n is________ When this product is multiplied by -n, the result is________
krek1111 [17]
-4n^3+24n^2-12n, 4n^4-24n^3+12n^2
3 0
3 years ago
Read 2 more answers
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