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laila [671]
2 years ago
8

Determine the factors of x2 − 8x − 12.

Mathematics
2 answers:
Mila [183]2 years ago
5 0
This polynomial cannot be factored because it is prime. Hope this helps. :)
Anna007 [38]2 years ago
5 0

Answer:

We can't get the factors of the equation.

Step-by-step explanation:

In a quadratic equation ax² + bx + c = 0

when (b² - 4ac) is a perfect square only then we can factorize the equation.

In the given equation x² - 8x - 12 we will check the value of b² - 4ac

here it is given from the equation b = -8 and c = -12

b²- 4ac = (-8)² - 4(1)(-12) = 64 + 48 = 112

Since 112 is not a perfect square number so we can not find the factors of the given equation.

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use the formula R = log I, where are is the measurement of the Richter scale and I is the intensity, to find the Richter scale m
zysi [14]

Answer:

R ≈ 7.4

Step-by-step explanation:

Substitute I = 25000000 into the equation

log(25000000 ) = R , then

R ≈ 7.4 ( to 1 dec. place )

3 0
2 years ago
Complete the equation of the line through (2,1) and (5,-8)
Mila [183]

First we calculate the slope (which is called "m".

Slope = m = (Y2 -Y1) ÷ (X2 -X1)

m = (-8 -1) / (5 -2) = -9 / 3 = -3

We next fill in this equation: b = y -mx

We know m = -3 and we can choose a point (2, 1) to calculate "b"

b = 1 --3 * 2 b = 7

Putting this into y = mx +b

y = -3x +7


7 0
2 years ago
Solve for x 4(2x+9)=-44+8
Andreas93 [3]

Answer:

x=-9

Step-by-step explanation:

distribute 4 into the parentheses

8x+36=-44+8

add -44+8

and u get 8x+36=-36

subtract the 36 on both sides and leave u with

8x=-72

divide 8 on both sides

and ur answer is -9

i dont think this make sense but hope this helps

5 0
2 years ago
Read 2 more answers
What Is -0.75-(-2/50)+0.4(-3/4)? Explain and answer the question please
lilavasa [31]
The answer is -1.01
I first changed the signs of the ones i could. So <span>-0.75+(2/50)+0.4(-3/4)
Then i multiplied the 0.4*-3/4 which equals -0.3
So you are left with </span><span>-0.75+(2/50)-0.3
2/50 is equal to 0.04 so now it is </span> -0.75+0.04-0.3 and the rest is simple math. Which equals -1.01
3 0
3 years ago
Does 12cm,35cm,37cm equal a right triangle
velikii [3]
Start off by using the Pythagorean Theorem: a^2 + b^2 = c^2

12^2 + 35^2 = 37^2
144 + 1,225 = 1,369
1,369 = 1,369

If the left side equals the right side than it is a right triangle.

Your answer is: Yes 

Have an amazing day and stay hopeful!

4 0
3 years ago
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