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KATRIN_1 [288]
3 years ago
14

Factor completely 49x2 − 9.

Mathematics
1 answer:
julia-pushkina [17]3 years ago
3 0

Answer: (7x + 3)(7x -3)

Step-by-step explanation:

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Creatividad a división problem with a 2 digit divisor. Using more then 1 set of compatible numbers, observe what happens when yo
Burka [1]
180/10=18 is one but the easitest way is with tens or hundreds

8 0
3 years ago
If one of the zeros of the cubic polynomial x3 + ax2 + bx + c is -1, then what will be the product of the other two zeros?
zhenek [66]

Answer:

The product of the other two zeros is c

Step-by-step explanation:

Let α, β and γ be the zeros of the polynomial x³ + ax² + bx + c. Since one of the zeros is -1, therefore let γ = -1. Hence:

sum of the roots = α + β + γ = -a

-1 + β + γ = -a

β + γ = -a + 1

αβ + αγ + βγ = b

-1(β) + (-1)γ + βγ = b

-β -γ + βγ = b

Also, the product of the zeros is equal to -c, hence:

αβγ = -c

-1(βγ) = -c

βγ = c

Hence the product of the other two zeros is c

6 0
3 years ago
Plz help question below
Olenka [21]
It should be A if I did the math right which I think I did
3 0
3 years ago
Read 2 more answers
Which point is the vertex?<br> C<br> B<br> A<br> None of the above
Karo-lina-s [1.5K]

Answer:

B

Step-by-step explanation:

Hope this helps you out! :)

3 0
3 years ago
Evaluate the given integral by changing to polar coordinates. sin(x2 y2) dA R , where R is the region in the first quadrant betw
alexira [117]

Answer:

I = 1.47001

Step-by-step explanation:

we have the function

f(x,y)=sin(x^2y^2)\\

In polar coordinates we have

x=rcos\theta\\y=rsin\theta

and dA is given by

dA=rdrd\theta

Hence, the integral that we have to solve is

I=\int \limt_2^4 \int \limit_0^{\pi /2}sin(r^4cos^2\theta sin^2\theta)rdrd\theta

This integral can be solved in a convenient program of your choice (it is very difficult to solve in an analytical way, I use Wolfram Alpha on line)

I = 1.47001

Hope this helps!!!

7 0
3 years ago
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