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Juli2301 [7.4K]
3 years ago
8

En Scale Factor

Mathematics
2 answers:
aksik [14]3 years ago
6 0

Answer: (0, -2.5)

Step-by-step explanation:

I got it right on the quiz, hope this helps!✨

kow [346]3 years ago
6 0

Answer:

Answer: (0, -2.5)

Step-by-step explanation:

just did it

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Harry is trying to solve the equation y = 2x2 − x − 6 using the quadratic formula. He has made an error in one of the steps belo
professor190 [17]

Answer:

Step 2

Step-by-step explanation:

The quadratic formula is given by x=-b+-\frac{\sqrt{b^{2}-4ac } }{2a}

Our equation is y = 2x²-x-6

So here our a = 2, b = -1, and c = -6

We can now plug these numbers into our formula

x= -(-1) +-\frac{\sqrt{(-1)^{2}-4(2)(-6) } }{2(2)} = 1 +-\frac{\sqrt{1+24} }{4} = 1+-\frac{\sqrt{25} }{4}

Step 2 is incorrect because it states that "x equals the negative of negative 1 plus or minus the square root of negative one plus forty-eight all over two times 2."

The correct statement would be "x equals the negative of negative 1 plus or minus the square root of positive one plus forty-eight all over two times 2.", because the square of a negative is positive, resulting in a positive one.

Since this step is incorrect, the steps after are also incorrect, but Harry went wrong at Step 2

4 0
3 years ago
there is a ratio of 5 girls to 3 boys in the chorus.there are 24 boys in the chorus.how many girls are there
pshichka [43]

I think that the answer to this is 40 girls  

24/3=8

8*5=40

hope this helps

3 0
3 years ago
greg s homework assignment was to find allthe common factors of 28 and 42 so greg made a list of all the factors of 28 and 42 he
kicyunya [14]
The common factors for 28 and 42 are 1, 2, 7 and 14.

3 0
3 years ago
Find the perimeter of a quadrilateral with vertices at C (-1,2), D (-2,-1), E (2,-2), and F (1,1). Round to the nearest hundredt
stealth61 [152]
To answer, find the distance from point C to D, point D to E, point E to F, and point F to C. The formula for the distance is,
                                     d = sqrt ((x2 - x1)² + (y2 - y1)²)
  Point C to D                d1 = sqrt ((-3 - -2)² + (1 - 4)²) = 3.16 units
  Point D to E                d2 = sqrt ((1 - -3)² + (0 - 1)²) = 4.12 units
  Point E to F                 d3 = sqrt ((-1 - 1)² + (2 - 0)²) = 2.83 units
  Point F to C                 d4 = sqrt ((-1 - -2)² + (2 - 4)²) = 2.23 units 
Then, add up all the distances and the answer is 12.34 units. The closest answer is letter D.  Credit:Meerkat
7 0
3 years ago
Read 2 more answers
Help i dont have any check answer anymore
Sergio039 [100]

Answer:

10 maybe

Step-by-step explanation:

6 0
2 years ago
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