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storchak [24]
3 years ago
13

5n2 + 2n + 3 + n2 + 4n - 6

Mathematics
1 answer:
marishachu [46]3 years ago
6 0

Answer:

the answer is: 6n^2+6n-3

Step-by-step explanation:

We need to solve:

5n^2 + 2n + 3

+ n^2 + 4n - 6

For solving this, we need to add the like terms.

Like terms are those terms that have same variables and exponents.

So, Adding like terms we get,

5n^2 + 2n + 3

+ n^2 + 4n - 6

___________

6n^2+6n-3

So, the answer is: 6n^2+6n-3

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What is the slope of a line parallel to the line whose equation is 3x – 4y = 8
liq [111]
Hi there! The answer is C.

We can find the slope of this line by making y the subject of the equation.

3x - 4y = 8 \\ - 4y = - 3x + 8 \\ y = \frac{ - 3}{ - 4} x + \frac{8}{ - 4} \\ y = \frac{3}{4} x - 2

Now we can see that the slope of this line (which is positioned in front of x) is 3/4. Therefore, the slope of any line parallel to this one is 3/4 as well. The answer is C.
7 0
3 years ago
.
Juli2301 [7.4K]

Answer:

the answer is......

Step-by-step explanation:

f ,c,a

4 0
3 years ago
Read 2 more answers
2 1/4 ⋅ 1 2/3<br> as a mixed number
Gemiola [76]

Answer:

3\frac{3}{4}

Step-by-step explanation:

We have two mixed numbers and are asked to multiply them together.

2 1/4 * 1 2/3

First we convert the mixed numbers into improper fractions to make it easier for us. So follow the MA rule.

Multiply the whole number by the denominator and add the numerator.

2 1/4 * 1 2/3

9/4 * 5/3

Now multiply across,

\frac{9*5}{4*3}

\frac{45}{12}

Now we need to convert this back into a mixed number.

So how many times does 45 go into 12?

3 times, and 3 are left.

3\frac{3}{4}

5 0
3 years ago
Factor completely 2n^2+3n-9
SVETLANKA909090 [29]
The answer is
(2n-3)(n+3)

i hope this helps :)
7 0
3 years ago
Rate of change of rational functions
densk [106]

Answer:

0.635

Step-by-step explanation:

rate~of~change = \dfrac{f(x_2) - f(x1)}{x_2 - x_1}

rate~of~change = \dfrac{f(x_2) - f(x1)}{x_2 - x_1}

x_1 = 0       x_2 = 0.3

f(x) = \dfrac{-7x^3}{x^4 - 1}

f(x_1) = f(0) = \dfrac{-7(0)^3}{(0)^4 - 1}

f(x_1) = \dfrac{0}{-1} = 0

f(x_2) = f(0.3) = \dfrac{-7(0.3)^3}{(0.3)^4 - 1}

f(x_2) = \dfrac{-0.189}{-0.9919} = 0.190543

rate~of~change = \dfrac{0.190543 - 0}{0.3 - 0} = 0.635

5 0
3 years ago
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