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Julli [10]
3 years ago
14

Factor the expression y2+6y-16

Mathematics
2 answers:
Arisa [49]3 years ago
8 0

Step 1 ) Break up the expression.

\displaystyle\ y^{2} + 6y -16

\displaystyle\ (y^{2} -2y) + (8y -16)

Step 2 ) Factor y from y^{2} - 2y.

\displaystyle\ (y^{2} -2y) + (8y -16)

\displaystyle\ y ( y - 2 )

Step 3 ) Factor 8 from 8y - 16

\displaystyle\ (y^{2} -2y) + (8y -16)

\displaystyle\ 8 ( y - 2)

Step 4 ) Place new factors in group.

\displaystyle\ y ( y - 2 )

\displaystyle\ 8 ( y - 2)

\displaystyle\ y(y-2)+8(y-2)

Step 5 ) Distribute.

\displaystyle\ y(y-2)+8(y-2)

\displaystyle\ (y-2) + 8(y-2)

\displaystyle\ (y-2) (y+8)

The expression factored is...

\framebox {=(y-2)(y+8)}

•

•

- Marlon Nunez

ozzi3 years ago
3 0

y^2+6y-16=y^2+8y-2y-16=y(y+8)-2(y+8)=(y+8)(y-2)

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What is the slope of the line through (3, 2) and (-3, 4)?​
Angelina_Jolie [31]

Answer:

Slope =-1/3

Step-by-step explanation:

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7 0
3 years ago
Kimora’s cell phone company charges her $35 a month for phone service plus $.05 for each text message sent. How many text messag
professor190 [17]

Given that Kimora’s cell phone company charges her $35 a month for phone service plus $.05 for each text message sent.

Kimora's cell phone bill for one month is $52.

We need to determine the number of text messages Kimora sent for one month.

Also, we need to write and equation and solve it.

<u>The equation:</u>

Let x denote the number of text messages Kimora sent for one month.

Thus, the equation is given by

35+0.05x=52

Therefore, the equation for the number of text messages Kimora sent for one month is 35+0.05x=52

<u>Solving the equation:</u>

We need to solve the equation 35+0.05x=52

Subtracting both sides of the equation by 35, we get;

0.05x=17

Dividing both sides of the equation by 0.05, we get;

x=340

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3 0
3 years ago
Without calculating, which has a bigger volume. A cube that has a length, width, and height of 18 m. Or a sphere with a radius o
Evgesh-ka [11]

Weird. A period appears above this... huh.

Answer:

[Th]e cube has a greater value.

Step-by-step explanation:

What the word problem really wants us to get [is ]the question of 'Which is greater, A=6a^2 when 'a' [is] 18 or A=4\pir^2 when r = 9? And here's how to solve that.

Starting with the[ c]ube we have A=6a^2. A bit t[o]o simple, right?

A=6(18)^2 Substitute numbers.

A=6(324) Solve ex[p]onents.

A=1944 Mult[i]ply.

So w[e] know that the cube is 1944 meters cube[d ] in area. But what about the more [f]ormidable sphere? Fo[r] it we need a slightly m[o]re co[m]plicated formula, A=4\pir^2. However, instead of using the real pi I will be rounding to 3.14, since we have no calculator so anything more would take way too long and fry your[ bra]in.

A=4(3.14)(9)^2 Subst[i]tute numbers.

A=4(3.14)(81) Solve expone[n]ts.

A=12.56(81) Multip[ly].

A=1017.36 Multiply again[.]

Now, since I'm sure all of us can count, we know that 1944 is greater than 1017.36. Or in other words, the cube is bigger than the sphere.

And PLEASE don't copy this guys. Make your own iteration. Change it up!

3 0
3 years ago
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