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Marina86 [1]
3 years ago
7

Which shows the factored form of x2-12x-45?

Mathematics
1 answer:
Vlad1618 [11]3 years ago
8 0

Answer:

(x - 15)(x + 3)

Step-by-step explanation:

Consider the factors of the constant term (- 45) which sum to give the coefficient of the x- term (- 12)

The factors are - 15 and + 3, since

- 15 × 3 = - 45 and - 15 + 3 = - 12, hence

x² - 12x - 45 = (x - 15)(x + 3)

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What is the value of x?
tekilochka [14]

Answer:

Step-by-step explanation:

since we can see that the lines are parallel

and we can see that the both are interior angles and when we sum up both angles we get 180

2x - 5  + 45 = 180

2x  + 40 =180

2x = 180 - 40

2x =140

x = 140/2

x = 70

4 0
3 years ago
Evaluate for x=2 and y=3: x^2y^-3/x^-1y
Artemon [7]

Answer:

8/81

Step-by-step explanation:

It's most efficient to simplify the quotient algebraically before inserting the values of the variables x and y.  

The given expression reduces to x³ / y^4.

Substituting 2 for x and 3 for y, we get:

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4 0
3 years ago
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leva [86]

Answer: <em><u>CAN YOU PLS MARK AS BRAINLIEST??</u></em>

a.x=11/4

b.x=6

c.x=21/2

d.x=0

Step-by-step explanation:

-2+3x+x=9-x

-2+3x+x=9

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x=11/4

when you move a numerator to the other side it becomes a denominator

x+2=3/4x6

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5-2x-12=14

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6 0
3 years ago
Find the measures of the interior angles of the triangle.
miv72 [106K]

Answer:

X = 45

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
There are 720 dishes that need to be rinsed. Josh can rinse them in 72 minutes by himself. It will take his friend Felipe 144 mi
creativ13 [48]

Answer:

48 minutes

Step-by-step explanation:

\frac{1}{72} + \frac{1}{144} =\\\\\frac{2}{144}+\frac{1}{144}  =\\\\\frac{3}{144} \\\\

144÷3=48

7 0
2 years ago
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