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Vanyuwa [196]
3 years ago
15

Multiply And Simplify: A: (b+2)(b+2) B: (x+3)(x-3) Also show work.

Mathematics
1 answer:
8090 [49]3 years ago
5 0
A: Foil 

(b+2)(b+2)=b²+2b+2b+4=b²+4b+4

B: Again, Foil

(x+3)(x-3)=x²+3x-3x-9=x²-9
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1.) Which domain restrictions apply to the rational expression? 14x-2x / x^2-7x
mezya [45]

Answer:

3. \displaystyle 1\frac{1}{3} = x

2<em>C.</em> \displaystyle III.

2<em>B.</em> \displaystyle I.

2<em>A.</em> \displaystyle II.

1. \displaystyle Set-Builder\:Notation: [x|7, 0 ≠ x] \\ Interval\:Notation: (-∞, 0) ∪ (0, 7) ∪ (7, ∞)

Step-by-step explanation:

3. <em>See</em><em> </em><em>above</em>.

2<em>C</em>. The keyword is ratio, which signifies division, so you would choose "III.".

2<em>B</em>. The keyword is percent, which signifies multiplication of a ratio by 100, so you would choose "I.".

2<em>A</em>. The keyword is total, which signifies addition, so you would choose "II.".

1. Base this off of the denominator. Knowing that the denominator CANNOT be zero, you will get this:

\displaystyle x^2 - 7x \\ x[x - 7] = 0; 7, 0 = x \\ \\ Set-Builder\:Notation: [x|7, 0 ≠ x] \\ Interval\:Notation: (-∞, 0) ∪ (0, 7) ∪ (7, ∞)

I am joyous to assist you anytime.

5 0
3 years ago
HELLO PLEASE HELP Add using a number line.
Ray Of Light [21]

Answer:

The answer is 80

Step-by-step explanation: <u><em>You can trust me ok?:)</em></u>

5 0
3 years ago
Aleena has a savings account that gives 5% annual interest. She deposits $200 that she received on her birthday. Write an equati
ANTONII [103]

Answer:the equation is 200 + 10x

Step-by-step explanation:

The formula for simple interest is expressed as

I = PRT/100

Where

P represents the principal or initial amount deposited into the account.

R represents interest rate on the principal

T represents time in years

I = interest after t years

From the information given

T = x years

P = $200

R = 5%

Therefore

I = (200 × 5 × x)/100

I = 1000x/100

I = 10x

Therefore, the equation representing the total amount of money that would be in the account after x years would be

200 + 10x

8 0
3 years ago
Brainliest question please help me now I need it now plz
professor190 [17]
AZ^2= 2^2 + 2^2 = 8
AP^2 = ZP^2 = 5^2 + 7^2 = 74
P^2of APZ = /8 + 74*2 =156
P= 12.489
6 0
3 years ago
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A car gets 22 miles per gallon of fuel. At this rate, how many gallons of fuel does the car need to travel 121 miles?
Elodia [21]

Answer:

i think it is 2662 gallons, i think

Step-by-step explanation:


8 0
4 years ago
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