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aleksklad [387]
3 years ago
9

Chang drove 325 miles in 5 hours.

Mathematics
1 answer:
Margarita [4]3 years ago
4 0

12 hours u half to divide it equally

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The heights of adult males in the United States are approximately normally distributed. The mean height is 70 inches (5 feet 10
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A BIRD FLIES 2/3 OF A MILE PER MINUTE. HOW MANY MILES PER HOUR IS IT FLYING?​
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40 Miles Per hour

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Please help me with only one question. 20 points
Ostrovityanka [42]

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141.3 cubic inches

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WILL MAKE BRAINLIEST!!!!Complete the system of equations with a linear equation so that the graphs of the equations intersect at
Nina [5.8K]
First, we have to find x- and y-intercepts of given equation.

1. y-intercept is a point (0, y) so substitute x = 0 and calculate:

y=x^3-3x^2+x-3\\\\y= 0^3-3\cdot0^2+0-3\\\\y=0-0+0-3\\\\\boxed{y=-3}

y-intercept = (0, -3)

2. x-intercept is a point (or points) (x, 0), so when we substitute y = 0 there will be:

0= x^3-3x^2+x-3\\\\0=x^2(x-3)+(x-3)\\\\0=(x^2+1)(x-3)\\\\\\x^2+1=0\qquad\vee\qquad x-3=0\\\\x^2+1\text{ always}\ \textgreater \ 0\qquad\vee\qquad x=3\\\\\boxed{x=3}

x-intercept = (3, 0)

Now, when we have x- and y-intercepts, we can write an equation of a line (graph of the linear function) that passes through this two points:

A=(3,0)\qquad\qquad B=(0,-3)\\\\\\
y-y_A=\dfrac{y_B-y_A}{x_B-x_A}(x-x_A)\\\\\\y-0=\dfrac{-3-0}{0-3}(x-3)\\\\\\y=\dfrac{-3}{-3}(x-3)\\\\\\y=1(x-3)\\\\\\\boxed{y=x-3}

Our linear equation is: y = x - 3
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