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Juli2301 [7.4K]
3 years ago
6

Find the product. (x + 9)(4x2 + 5x + 6)

Mathematics
2 answers:
CaHeK987 [17]3 years ago
8 0

Answer:

4x^3 + 41x^2 +51x + 54

Step-by-step explanation:

This is a polynomial distribution

(x + 9 )(4x^2 + 5x + 6) <u>We start by multiplying every term with x</u>

4x^3 + 5x^2 + 6x <u>there is plus sign between (x+9) so we put plus and start multiplying every term by 9</u>

4x^3 + 5x^2 + 6x + 36x^2 + 45x + 54

4x^3 + 41x^2 +51x + 54

amid [387]3 years ago
4 0
The answer is 5x2 + 59x + 126
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olga55 [171]
A) 3 9/20
b) 4 3/20
c) 3 8/15
d) 6 1/15
e) 8 1/21
f)  8 11/21
g) 18 33/40
h) 21 1/40
5 0
3 years ago
Need help with this problem. ​
tigry1 [53]

Answer:

C) -\frac{47}{49}

Step-by-step explanation:

By the cos double angle formula, we know \cos(2\theta)=2\cos^2\theta-1. Substituting \cos \theta into the formula, we get

\cos(2\theta)=2(-\frac{1}{7})^2-1\\~~~~~~~~~~=\frac{2}{49}-1\\~~~~~~~~~~=\boxed{-\frac{47}{49}}.

The answer is C.

5 0
2 years ago
If A bag of chips is 1.29 and the drink cost 0.89 how much will it cost with a coupon for 0.75
harina [27]

Answer: I believe it would be 2.90

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Y= 2x +2
Airida [17]

Answer:

The system has one solution, at a single point of intersection.

Step-by-step explanation:

I'm going to assume that g and y are the same thing here, on a normal xy-coordinate plane. If there is actually a third dimension, 'g', then I am probably wrong, and I apologize.

For a system of 2 linear equations, a 'solution' is a point of intersection for the two lines.

If the two lines are parallel, they will have no intersection. These two equations are in the form y = mx + b, where m is the slope. <u>If their slopes are the same, then the lines are parallel.</u> The first equation has a slope of 2. The second equation has a slope of 6. 2 ≠ 6, obviously. They are are <u>not </u>parallel, so there is <u>at least one</u> solution (intersection)

If two equations are 'equivalent', then they represent the same exact line and you cannot find a unique solution to the system because there is no single point where they intersect. They intersect at <u>all </u>points, so there are an infinite number of solutions. Two equations in the same format (like point-slope) will be equivalent if you see that one is just a multiple of the other. That is not the case here. They are not equivalent, so there are not an infinite number of solutions.

For the intersection of two lines in a plane, that intersection is no point, 1 point, or infinite points.

We have ruled out no point and we have ruled out infinite points.

There must be a solution of one point where the two lines intersect.

That would be consistent with answers B and E as shown in your Brainly question.

4 0
3 years ago
Read 2 more answers
Which scatterplot does NOT suggest a linear relationship between x and y. Look AT IMAGE
Afina-wow [57]

Answer:

Graph C

Step-by-step explanation:

It is Graph C because the points are majorly curved, while the rest of the lines are linear because they are straight.

Hope this helps! :D

- Luna

7 0
3 years ago
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