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Fantom [35]
3 years ago
5

The product of the sum of a and b and their difference.

Mathematics
1 answer:
Alchen [17]3 years ago
7 0

Step-by-step explanation:

The product of the sum of a and b and their difference:

(a + b)(a - b) = a² - b²

Proof:

L = (a + b)(a - b)     <em>use FOIL</em>

L = (a)(a) + (a)(-b) + (b)(a) + (b)(-b)

L = a² - ab + ab - b²         <em>combine like terms</em>

L = a² - b² + (-ab + ab)

L = a² - b²

R = a² - b²

L = R

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f − 1 ( x ) = − x 7 − 4 7 . This would be your answer.

You're welcome ;)

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2 years ago
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3 years ago
the Galveston-Port Bolivar Ferry takes cars across Galveston Bay. One day, the ferry transported a total of 685 cars over a 5 ho
anastassius [24]

Answer:

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Step-by-step explanation:

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3 0
3 years ago
Find the missing side lengths. Leave your answers in simplest radical form.
saveliy_v [14]
ANSWER:
d. x = 15, y= 15√3

EXPLANATION:
This is a special triangle, more specifically a 30-60-90 degree triangle. For sake of not confusing x and y, we will use z to use as our reference for solving this triangle. The side lengths for each angle are as follows:
• 60 degrees = z√3
- this is the value for your y answer
• 30 degrees = z
- this is the value for your x answer
• Hypotenuse = 2z
- this is what we already have

We solve for what we already have which is the Hypotenuse = 30:
2x = 30
x = 15

We now have our x value which is 15.
Now we just plug in that x value for every expression for every angle.

x = 15
y = 15√3

Sorry if I explained it too thoroughly but I’ll be glad to answer any questions or clarifications



8 0
2 years ago
O. How much money is 8% of $15.00?
g100num [7]

Answer: 1.2

Step-by-step explanation:  

To get 8% you have to do 8/100

that equals .08

Multiply .08 with 15 and it equals 1.2

7 0
3 years ago
Read 2 more answers
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