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3 years ago

9

Brandon likes to perform card tricks. if he does a trick 50 times and gets it right 90% of thr time how many times does he get t

he trick right

1 answer:

snow_lady [41]3 years ago

6 0

45 times because 90% of 50 is 45

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Which shows the factored form of x2 – 12x – 45? (x 3)(x – 15) (x – 3)(x – 15) (x 3)(x 15) (x – 3)(x 15).

Aleksandr [31]

The factors of the quadratic equation are (x+3) and (x-15).

<h2 /><h2>Given to us</h2>

$x^2-12x-45\\$

<h3>To find</h3>

The factors of $x^2-12x-45\\$ .

<h3 /><h3>Solution</h3>

$x^2-12x-45\\$

As we can see in the quadratic equation the value of ac is -45x². therefore, we need to divide -12x into two parts such that their sum must give -12x and their product gives us -45x².

therefore, dividing -12x into -15x and 3x,

$x^2-15x+3x-45\\$

Taking common out,

$x^2-15x+3x-45\\x(x-15)+3(x-15)\\(x+3)(x-15)$

Hence, the factors of the quadratic equation are (x+3) and (x-15).

Learn more about quadratic equations:

brainly.com/question/2263981

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2 years ago

3x−2y=−2 6x−2y=10 solve by elimination

Anvisha [2.4K]

Answer:

x=4 y=7

Step-by-step explanation:

When multiplying 3x by -2, you get -6x. -6x and 6x cross out. You're left with -2y=-2 and -2y=10.

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3 years ago

Ms.Gallegos works 8 hours per day. She made $2,400 for working 10 days. How much money does Ms. Gallegos make per hour

ExtremeBDS [4]

Answer:

30 dollars per hour

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3 years ago

Which two numbers add up to 24 and multiply to -240?

posledela

Answer:

tôi không hiểu bạn nói gì

Step-by-step explanat ion :

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3 years ago

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beks73 [17]

Answer:

6

Step-by-step explanation:

replace x with 6 in the ecuation.

4(6)=24 - 8 =16

5 0

3 years ago

Read 2 more answers