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zloy xaker [14]
2 years ago
11

A third line intersects two lines (A transversal). Which condition would always make the two lines parallel?

Mathematics
1 answer:
trasher [3.6K]2 years ago
3 0
It is c corresponding
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What is the product (2x + 3y) (7x – 4y)?
cupoosta [38]

Answer:

14x²-12y²

Step-by-step explanation:

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3 years ago
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A mountain bike originally priced at $960.00 is up for sale at a discount of 14%. What is the price of the mountain bike after t
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Answer:

$825.60

Step-by-step explanation:

Since the price of it is $960.00, it means that it's 100%.

100% = 960

1% = 960 ÷ 100 = 9.6

14% = 9.6 x 14 = 134.40

Since they asked for after the discount, deduct the price of the discount with the original price.

Mountain bike after 14% discount =

960 - 134.40 = 825.60

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3 years ago
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If $3,600 is invested at a rate of 2.4% that is compounded annually, how much will it be worth after 9 years?
Alex787 [66]
Amount after 9 years = 3600( 1 + 0.024)^9  =   $4456.58
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3 years ago
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What is 1,988 divided by5
labwork [276]

Answer:

397.6

Step-by-step explanation:

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3 years ago
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Solve the radical equation. Check all purpose solutions. <br><br> Sqrt(4-3x) = x
alisha [4.7K]

Step-by-step explanation:

√(4-3x) = x

1. square both sides:

[√(4-3x)]²= (x) ²

4-3x = x²

2. shift all the terms to the right side

(minimise dealing with negative coefficient of x² terms to prevent careless mistakes)

0= x²+3x-4

no matter how you change the places of the terms, it will still be:

x²+3x-4=0

3. solve the quadratic equation, either by cross multiplication(and factorising) or the quadratic formula(if you're taught)

for me I will be using the cross multiplication table that my calculator can help me with(gives me the solution but better to show the factorised form to prevent missing out method marks)

as such:

x²+3x-4=0

(x+4)(x-1)=0

hence:

(x+4)=0 or (x-1)=0

finally:

x= -4 or x= 1

however we're not done yet as some solutions may not match with the question/ original equation provided, this we still need to check if there are any values that does not match

substitute x= -4 into the original equation:

√4-3(-4) = √4+12 = √16 = 4 > -1 , hence x= -1 is not the answer

you can substitute the values into a scientific calculator(that has the functions required) to quickly determine

then to double confirm, do the same for the other value of X that we have found:

√4-3(1) = √4-3 = √1 = 1

since the other value of x matches with the equation provided in the question, then we can now confirm that the value of x=1 is the correct value

reason for such situation to happen:

remember in step 1 when we squared both sides of the equation, that is the reason for having to check for the correct X value. let me explain further

when we square numbers, we are potentially introducing another possible answer other than the correct answer intended for us to find as well as to match with the question.

for example:

1 = 1² = (-1)²

likewise, I can even take any other number to compare, such as 100:

100=10²=(-10)²

and this scenario only happens for the even powers of x, such as x², x⁴, x⁶ so on and so forth.

hence whenever such questions come out, do remember to double check with the original question/equation

lastly, the checking portion will only apply for even powers of x in questions and/or when you happen to square them

hope this helps!

5 0
1 year ago
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