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Alja [10]
3 years ago
12

Help me with this question!

Mathematics
1 answer:
Whitepunk [10]3 years ago
5 0

Answer:

I hope I got it right... (answers in the pics above)

Step-by-step explanation:

At first I didn't quite understand what the problem is about, but than I figured this out...so yeah, good luck !

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What’s the least common multiple of x^2-2x-15 and x^2+2x-3?
Ghella [55]

Answer:

\large\boxed{LCM(x^2-2x-15,\ x^2+2x-3)=(x+3)(x-5)(x-1)}\\\boxed{=x^3-3x^2-13x+15}

Step-by-step explanation:

x^2-2x-15=x^2+3x-5x-15=x(x+3)-5(x+3)=(x+3)(x-5)\\\\\\x^2+2x-3=x^2+3x-1x-3=x(x+3)-1(x+3)=(x+3)(x-1)\\\\LCM(x^2-2x-15,\ x^2+2x-3)=(x+3)(x-5)(x-1)\\\\=(x^2-2x-15)(x-1)\qquad\text{use FOIL}\\\\=(x^2)(x)+(x^2)(-1)+(-2x)(x)+(-2x)(-1)+(-15)(x)+(-15)(-1)\\\\=x^3-x^2-2x^2+2x-15x+15\qquad\text{combine like terms}\\\\=x^3+(-x^2-2x^2)+(2x-15x)+15\\\\=x^3-3x^2-13x+15

4 0
3 years ago
Ben has a cell phone plan that provides 200 free minutes each month for a
user100 [1]

Answer:

The piecewise functions accurately represents charges  based on Ben's cell phone plan is :

f(x)= 39, x \leq 200\\f(x)=39 + 0.35(x - 200), x > 200}

Step-by-step explanation:

Let x be the minutes over cell phone

Let f(x) represents the piecewise function that represents the charges based on Ben's cell phone plan.

We are given that Ben has a cell phone plan that provides 200 free minutes each month for a  flat rate of $39.

So,f(x)= 39, x \leq 200

We are also given that  For any minutes over 200, Ben is charged $0.35 per minute.

So, Minutes over 200 = x-200

f(x)=39 + 0.35(x - 200), x > 200}

Hence the piecewise functions accurately represents charges  based on Ben's cell phone plan is :

f(x)= 39, x \leq 200\\f(x)=39 + 0.35(x - 200), x > 200}

3 0
3 years ago
To Baker’s plus their contents have a mass of 180.4 g the total mass of the contents is 56.8 g each Baker has the same mess righ
yKpoI14uk [10]
Yes because the guy
4 0
3 years ago
What is the measure of the missing angle?
irinina [24]

125+42= 167

180-167= 13 degrees

Triangles is always equaled to 180 degrees.

Answer: choice 3

I am pretty sure this is the answer

6 0
3 years ago
Read 2 more answers
PLEASE HELP ASAP!!!!!!
Rainbow [258]

Answer:

  6/5 units³

Step-by-step explanation:

The volume of the prism is given by the formula

  V = Bh

where B is the area of the "base" and h is the height perpendicular to that base. Filling in the given numbers, you have ...

  V = (9/5)·(2/3) = 18/15 = 6/5 . . . . units³

7 0
3 years ago
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