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Morgarella [4.7K]
3 years ago
6

Expand and simplify (3a + 4)(3a + 4).

Mathematics
1 answer:
alekssr [168]3 years ago
3 0

Answer:

9 a²+24a+16

Step-by-step explanation:

hope it's helpful to you ☺️

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A student solves the following equation and determines that the solution is −2. Is the student correct? Explain.
g100num [7]

Answer:

For this case, we have the following equation (according to the comments):

First, we factor the quadratic expression in the denominator:

Then, we multiply both sides of the equation by (a-2) (a + 2):

Later, canceling similar terms we have:

We do distributive property on the left side of the equation:

By grouping variables and constant terms we have:

Rewriting we have:

Finally, by clearing "a" we have:

Note: the value of a is a extraneous solution because it makes the denominator of the original equation equal to zero.

Answer:

the student correct, but the value of a= -2 is an extraneous solution

3 0
3 years ago
Read 2 more answers
How do I evaluate the expression 2* the square root 36+9
Nuetrik [128]
36+9=45

6^2 + 3^2 += 45
7 0
3 years ago
Which quadratic function has a leading coefficient of 2 and a constant term of –3?
Romashka [77]
The answer is <span>f(x) = 2x2 + 3x – 3
</span>
f(x) = ax² + bx + c
a - the leading coefficient
c - the constant term

<u>We are looking for a = 2, c = -3</u>

Through the process of elimination:
The first (f(x) = 2x3 – 3) and the third choice (f(x) = –3x3 + 2) have x³ so these are not quadratic function.

In the function: <span>f(x) = –3x2 – 3x + 2
</span>a = -3
c = 2

In the function: f(x) = 2x2 + 3x – 3
a = 2
c = -3
6 0
3 years ago
Read 2 more answers
1. Find k, the constant of proportionality, for the given graph.
s2008m [1.1K]

Answer:

The answer is B or 15.

Step-by-step explanation:

the total money saved divided by the time is always 15

5 0
3 years ago
Please help with these two questions and give an accurate answer. I will mark u the brainiest. Sinking Rivers charges two hundre
Soloha48 [4]

Answer:

Step-by-step explanation:

First one is 200 dollars for insurance which will be the constant and 15 dollars an hour which means the equation will be;

C = 15h +200 (Sinking Rivers)

Second one is $30 an hour and $110 for insurance which is the constant so he equation is;

C = 30h + 110 (Floating Down The Stream)

5 0
3 years ago
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