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Anastaziya [24]
2 years ago
8

X^2+15x+c is a perfect square trinomial, what is c?

Mathematics
1 answer:
Natalija [7]2 years ago
3 0

Answer:

C equals 56.25

Step-by-step explanation: because all we have to do is 225 divided by 4. Hope this helps and can you make me brainliest. :)

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3 years ago
The midpoint of AB is M(3, -1). If the coordinates of A are (5,1), what are the
Vera_Pavlovna [14]

Given parameters:

Midpoint of AB =  M(3, -1)

Coordinates of A = (5,1)

Unknown:

Coordinates of B = ?

Solution:

To find the mid point of any line, we use the expression below;

              x_{m}   = \frac{x_{1} + x_{2}  }{2}    and y_{m}  = \frac{y_{1} + y_{2}  }{2}

where x_{m}  and y_{m} = coordinates of the mid points = 3 and -1

   x₁  = 5 and y₁ = 1

  x₂ = ?  and y₂ = ?

Now let us input the variables and solve,

            3  = \frac{5 + x_{2} }{2}           and     -1 = \frac{1 + y_{2} }{2}

    5 +  x₂  = 6                          -2 = 1  + y₂

            x₂ = 1                             y₂ = -2 -1 = -3

The coordinates of B = 1, -3

6 0
3 years ago
Find the 59th term of the following arithmetic sequence. 15, 23, 31, 39
m_a_m_a [10]

15~~,~~\stackrel{15+8}{23}~~,~~\stackrel{23+8}{31}~~,~~\stackrel{31+8}{39}~~,~~...~\hspace{10em}\stackrel{common~difference}{d=8} \\\\[-0.35em] ~\dotfill\\\\ n^{th}\textit{ term of an arithmetic sequence} \\\\ a_n=a_1+(n-1)d\qquad \begin{cases} a_n=n^{th}\ term\\ n=\stackrel{\textit{term position}}{59}\\ a_1=\stackrel{\textit{first term}}{15}\\ d=\stackrel{\textit{common difference}}{8} \end{cases} \\\\\\ a_{59}=15+(59-1)8\implies a_{59}=15+472-8\implies a_{59}=479

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2 years ago
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<span>2.98214285714 an hour for 168 hours</span>
8 0
3 years ago
Read 2 more answers
What is the measure of DAE?<br> 45°<br> 46°<br> 91°<br> 146°
Schach [20]

Since BAF is opposite of DAE, they are equal to each other.

134 - 89 = 45

The correct answer is 45

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3 years ago
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