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lisov135 [29]
2 years ago
14

I need help again please

Mathematics
1 answer:
Serjik [45]2 years ago
4 0

Answer:

The equation is y= (-6/7)x - 10/7

Step-by-step explanation:

y=(slope)x + (y-intercept)

Usually I find the y-intercept first, but in the graph provided the y-intercept doesn't seem to be at exactly -1, instead i'd guess to be -1.1. But thats a guess so I cant do anything with that.

Instead lets start with slope, the slope formula is (y2-y1)/(x2-x1), as we are given the 2 points (-4,2) and (3,-4) we simply plug in those numbers to get the slope: (-4-2) / (3 - (-4) ) = -6/7 which is the slope. This number is negative which makes sense as the line is going down.

Now the equation is this:

y= (-6/7)x + b

To find the y-intercept we pick one of the two provided points (which one we pick doesn't matter), i'll pick the (-4,2). We plug that into the current equation: y= (-6/7)x - b  ->  2= (-6/7)*-4 - b. And solve for b, the y intercept. We get the y-intercept to be -10/7. Which in decimal is -1.42 which is close to -1.1.

Resulting with the answer:

y= (-6/7)x - 10/7

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erik [133]

Answer:

416 mi

Step-by-step explanation:

In order to find the surface area, you must find the area of each square. There are a total of 6 that make up the prism.

<em>Remember to find the area it is length x width</em>

  1. 9 x 8 = 72 which is the area for 4 of the squares. 2 on the side and 2 on the bottom
  2. Lastly for the last 2 squares to find the area you multiply 8 x 8 = 64
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3 0
2 years ago
Is x + 3 a factor of P(x) = x³ - 5x² + 3x + 9 ? Explain.​
Ksju [112]

Answer:

no

Step-by-step explanation:

using the Factor theorem.

If (x + h) is a factor of f(x) then f(- h) = 0

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since f(- 3) ≠ 0 then (x + 3) is not a factor of P(x)

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balandron [24]

Answer:

If you are just looking for a simplified answer then the answer is -7x - 3.

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3 years ago
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Need some more info, what are the dimensions of the bricks?

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Hope This helped :)
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