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drek231 [11]
3 years ago
8

Harry is trying to solve the equation y = 2x^2 − x − 6 using the quadratic formula. He has made an error in one of the steps bel

ow. Find the step where Harry went wrong.

Mathematics
1 answer:
Bond [772]3 years ago
4 0
He made a mistake in step #2. It seemed to be a trivial mistake because it involved signs, but it still had a great impact. Since step#2, his solution was already wrong.

Instead of
(-1)²-4(2)(-6) = 1 + 48 = 49

What he did is
(-1)²-4(2)(-6) = -1 + 48 = 47
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the area of rhode island is approximately 1200 square miles, and its population is approximately 1 million people. What is the b
devlian [24]

Answer: 1,083.3333

Step-by-step explanation:

The best estimate for the population density for Rhode Island is 1,083 people. I found this by dividing 1,300,000 by 1200.

Hope my answer helps you out :D

5 0
3 years ago
ILL MARK BRAINIEST IF YOU CAN DO THIS RIGHT!!!
Bumek [7]

Answer:  Slope: -1/2  

Step-by-step explanation:  To find slope take 2 points that lie on the line and use this formula to solve:  <em> </em>I will use (0, -2) and (2, -3) to solve

                                                                       ↑    ↑           ↑   ↑

y2 - y1                                                             x1  y1          x2  y2

-----------

x2 - x1

So, for this question, substitute the x and y values from the points above to solve.

-3 - (-2)      

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Hope this helped. :)

 

5 0
3 years ago
Pleaseeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
Phantasy [73]

Answer:

  • 1 pound- $4.7
  • 2 pounds- $9.4
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  • 4 pounds- $18.8

Step-by-step explanation:

Just hardware's prices are 0.30 greater per pound, so the equation would be y=4.7x. Substitute x in for each of the values to get the prices above.

3 0
3 years ago
I can't find the volume ​
sp2606 [1]

Answer:

8π(2.5)^2

Step-by-step explanation:

volume = π * r^2 * h

v = π * (2.5)^2 * 8

7 0
3 years ago
Please help. I dont understand
Gennadij [26K]

Answer: try b  

Step-by-step explanation:

glad i could help!

8 0
3 years ago
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