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erica [24]
4 years ago
10

What is the resulting polynomial when

Mathematics
1 answer:
o-na [289]4 years ago
4 0

Answer:

C

Step-by-step explanation:

Given

(3x + 7)(2x - 6)

Each term in the second factor is multiplied by each term in the first factor, that is

3x(2x - 6) + 7(2x - 6) ← distribute both parenthesis

= 6x² - 18x + 14x - 42 ← collect like terms

= 6x² - 4x - 42 → C

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Which of the following is false for the hyperbola (x+5)^2/4^2 - (y-2)^2/3^2=1
disa [49]

Answer:

C)One of the vertices is (-10,2)

Step-by-step explanation:

Given the hyperbola: \dfrac{(x+5)^2}{4^2} -\dfrac{ (y-2)^2}{3^2} =1

The standard equation for a hyperbola with a horizontal transverse axis is:

\dfrac{(x-h)^2}{a^2} -\dfrac{ (y-k)^2}{b^2} =1 where the center is at (h, k).

For our given hyperbola, the center (h,k)=(-5,2)

Now:

c^2=a^2+b^2\\c^2=4^2+3^2\\c^2=25\\c=5

Since the center is at (-5,2), its foci (-c,0) and (c,0) are:

(-5-5,2) and (-5+5,2)= (-10,2) and (0,2)

Similarly, since the center is at (-5,2), its vertices, (-a,0) and (a,0) are:

(-5-4,2) and (-5+4,2)= (−9,2), (−1,2).

Therefore, the odd option is C.

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825 students 55 teachers what is ratio
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15 students per teacher because 825/55=15
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Emilio’s age is four years more than half the age of his sister Rosa. The sum of their ages is 28. How old is Rosa?
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Kendras car gets 23.6 miles per gallon of gas. if her car has an 18-gallon tank, what is the maximum number of miles she could t
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The identity property of multiplication is also known as
Aleks04 [339]

Answer:

Identity Property of Multiplication Definition. This property is also known as the multiplication property of 1. It states that the result of multiplying any real number by 1 is the number itself.

Step-by-step explanation:


8 0
4 years ago
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