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DedPeter [7]
4 years ago
13

How to factor a trinomial x^2+11x+19

Mathematics
1 answer:
Tresset [83]4 years ago
4 0

Answer:

this trinomial is prime, and cannot be factored.

Step-by-step explanation:

when expanding the equation, you multiply the last term by the first term's coefficient, and then find two factors that multiply to that product, and sum to the middle coefficient.

1 * 19 = 19

there are no factors that will multiply to 19 and sum to 11. thus, this polynomial is prime.

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$6.012

Step-by-step explanation:

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3 years ago
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A. What is the vertex of the equation y = (x - 4)??
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Answer:

(4 , 0)

Step-by-step explanation:

THe vertex of y = (x - 4)² is (4,0).

Look at the photo below for the graph.

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What is the value of x
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Maria average 81 on her first three History exams. the first score was 83. The second score was 4 less than the third score. Wha
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Answer:

76 on second exam, 80 on third exam

Step-by-step explanation:

First, find the total of all 3 test scores by multiplying the average by the number of elements. 81 · 3 = 243.

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To find the other 2 scores, divide 160 by 2, which is 80.

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6 0
3 years ago
In March, there will be two conferences: one for math and one for history. So far, 7 people have signed up for the math conferen
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Answer:

After 4 days, the number of people attending both conferences be the same.      

Step-by-step explanation:

We are given the following in the question:

Maths conference:

Number of people already signed = 7

Number of people who sign up each day = 2

Thus, the number of people who will sign up for maths conference in x days will be given by the linear function:

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History conference:

Number of people already signed =11

Number of people who sign up each day = 1

Thus, the number of people who will sign up for maths conference in x days will be given by the linear function:

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Both conference will have same number of people when

f(x) = g(x)\\\Rightarrow 7 + 2x = 11+x\\\Rightarrow x = 4

Thus, after 4 days, the number of people attending both conferences be the same.

5 0
3 years ago
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