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3 years ago

7

What is the diameter?

1 answer:

Usimov [2.4K]3 years ago

7 0

Answer:

13

Step-by-step explanation:

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Given the trinomial, what is the value of the coefficient B in the factored form? 2x2 + 4xy − 48y2 = 2(x + By)(x − 4y) −12 12 −6

Sonja [21]

Answer:

B is 6.

Step-by-step explanation:

We are trying to find a value for $B$ such that:

$2x^2+4xy-48y^2=2(x+By)(x-4y)$ is true for every $x,y$ .

So let's choose $x=0,y=1$ :

$2(0)^2+4(0)(1)-48(1)^2=2(0+B(1))(0-4(1))$

$2(0)+0-48=2(B)(-4)$

$0-48=-8B$

$-48=-8B$

Divide both sides by -8:

$\frac{-48}{-8}=B$

$6=B$

$B=6$

Note: I didn't want to choose y to be 0 because the value of B would disappear from the equation. So you should be able to have chosen any x and y except for y=0 to solve the equation for B.

Check:

So let's check and use foil to multiply out the right hand side.

$(x+6y)(x-4y)$

$x(x)+x(-4y)+6y(x)+6y(-4y)$

$x^2-4xy+6xy-24y^2$

$x^2+2xy-24y^2$

There was a 2 in front of that multplicapltiation:

$2(x+6y)(x-4y)$

$2(x^2+2xy-24y^2)$

$2x^2+4xy-48y^2$

This is exactly what we have on the left hand side of your given equation.

3 0

3 years ago

(1.598 × 10¹7) - (4.58 × 10¹5) simplify

inessss [21]

Use Picture Math, i cant type in the other cause brainly doesn't accept it but it is Ga_thMath. (u)

7 0

3 years ago

If you write 14 to the power of 6<br> in expanded form, how many factors will there be?

Allushta [10]

There will be 49 factors I belive!

4 0

2 years ago

Read 2 more answers

The smallest two-digit whole number is 10. What is the smallest odd two-digit whole number?

erica [24]

11

11 is an odd number

and there is no 2 digit number less than 10

8 0

4 years ago

Read 2 more answers

Helppp ASPPP plzz Select the correct answer.

Kruka [31]

Answer:

C. $-2x^3+2\sqrt{x}$

Step-by-step explanation:

$\sqrt{x} -x-(2x^3-\sqrt{x} -x)$

Change the signs of g(x)

$\sqrt{x} -x-2x^3+\sqrt{x} +x$

Simplify

$-2x^3+2\sqrt{x}$

I hope this helps!

pls ❤ and mark brainliest pls!

3 0

3 years ago