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horrorfan [7]
3 years ago
12

Can someone help with math?

Mathematics
1 answer:
aivan3 [116]3 years ago
4 0

Answer: jake

Step-by-step explanation:

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Use completing the square to solve for x in the equation (x minus 12) (x + 4) = 9. x = –1 or 15 x = 1 or 7 x = 4 plus-or-minus S
Scrat [10]

Answer:

x = 4 ± \sqrt{73}

Step-by-step explanation:

Given

(x - 12)(x + 4) = 9 ← expand the left side using FOIL

x² - 8x - 48 = 9 ( ad 48 to both sides )

x² - 8x = 57

To complete the square

add ( half the coefficient of the x- term )² to both sides

x² + 2(- 4)x + 16 = 57 + 16

(x - 4)² = 73 ( take the square root of both sides )

x - 4 = ± \sqrt{73} ( add 4 to both sides )

x = 4 ± \sqrt{73}

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A fair coined is flipped what is the probability it will land on its head
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3 years ago
−24 = −6p solve and then plot the answer on an number line
Yanka [14]

Answer: -24 divided by -6p

how many times does 6 fit into 24? 4 times.

since 6 is already negative, 4 is positive. if 4 was negative, 24 would be positive.

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3 years ago
Type the equation that shows the pattern among this set of ordered pairs.
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First find the slope between any two points:

\sf Slope=\frac{y_2-y_1}{x_2-x_1}

Where \sf (x_1,y_1),(x_2,y_2) are the two points

So calculating the slope:

\sf Slope=\frac{5-0}{2-1}=\frac{5}{1}=5

So the slope is \boxed{5}

And our equation will be in the format of \sf y=mx+b
where \sf m~ is~ the ~slope and \sf b ~is~the~y-intercept

So, now we have half of the equation:

\sf y= 5x+b

Now to calculate b, we can plug in a point \sf (x,y) and solve for b.

So

\sf y= 5x+b

Lets use the point
\sf (1,0) which ~is~in~the~form ~of ~(x,y)

So:
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And then:
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So our final equation is \sf \boxed{y=5x-5}
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