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4 years ago

What is he product of (n-8)(n+2)

Mathematics

1 answer:

liubo4ka [24]4 years ago

5 0

Answer:

$\large\boxed{(n-8)(n+2)=n^2-6n-16}$

Step-by-step explanation:

Use FOIL:

We have:

$(n-8)(n+2)=(n)(n)+(n)(2)+(-8)(n)+(-8)(2)=n^2+2n-8n-16$

<em>combine like terms</em>

$=n^2+(2n-8n)-16=n^2-6n-16$

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Which graph represents y = [x] over the domain 2<2<5?

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I think it’s the one on the bottom left

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3 years ago

What is the sum of two numbers a and b decreased by their product?

belka [17]

The sum of two numbers a and b decreased by their product is (a+b)-ab

Step-by-step explanation:

Given the two numbers as a and b

Sum of these two numbers is a+b

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The sum of the two numbers decreased by their product will be;

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4 years ago

Through (-4,6) and parallel to y=-3x+4

liraira [26]

Y=mx+b
parallel lines will have the same slope.

using the points (-4,6) and the slope for the parallel line -3 we can find b (the y intercept) for the line.

6 = (-3)(-4) + b
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-12 + 6 = -12 + 12 +b
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so the line that runs through points (-4,6) and parallel to y= -3x+4 is:
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3 years ago

The basketball boosters are selling school t-shirts for 20 dollars and pants for 45 dollars. Last week they sold 100 items and c

lana66690 [7]

He sold 76 shirts and 24 pants.

Step-by-step explanation:

Given,

Cost of one t-shirt = $20

Cost of one pants = $45

Total items sold = 100

Total sales = 2600

Let,

x be the number of t-shirts

y be the number of pants

According to given statement;

x+y=100 Eqn 1

20x+45y=2600 Eqn 2

Multiplying Eqn 1 by 20

$20(x+y=100)\\20x+20y=2000\ \ \ Eqn\ 3$

Subtracting Eqn 3 from Eqn 2

$(20x+45y)-(20x+20y)=2600-2000\\20x+45y-20x-20y=600\\25y=600$

Dividing both sides by 25

$\frac{25y}{25}=\frac{600}{25}\\y=24$

Putting in Eqn 1

$x+24=100\\x=100-24\\x=76$

He sold 76 shirts and 24 pants.

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3 years ago

Marta is making two different charms for necklace one charm has a 1 cm diameter and a 3.14 centimeter circumference A similar ch

dlinn [17]

Both charms are "similar".

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3 years ago