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stepan [7]
3 years ago
8

Solve x^2 + 25 = 6x

Mathematics
1 answer:
aivan3 [116]3 years ago
7 0
<h3>I'll teach you how to solve x^2 + 25 = 6x</h3>

----------------------------------------------------------

x^2 + 25 = 6x

Subtract 6x from both sides:

x^2+25-6x=6x-6x

Simplify:

x^2-6x+25=0

Solve with the quadratic formula:

For the quadratic equation of the form ax^2+bx+c=0 the solutions are:

1^x,2 = -b +,- sqrt b^2-4ac/2a

x= -(-6)+ sqrt (-6)^2-4*1*25/2*1 = 3+4i

x= -(-6)+ sqrt (-6)^2-4*1*25/2*1 = 3-4i

Your Answer Is x=3+4i, x= 3-4i

plz mark me as brainliest :)

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A right triangle ABC with right angle at B and base BC is drawn. Length of AB is 12, length of BC is 11.5. A similar right trian
expeople1 [14]

Answer:

Option D is correct.

Length of PQ is 36 unit.

Explanation:

If the measures of two sides in one triangle are proportional to the corresponding sides in the another triangle and their including angles are congruent, then the triangles are similar.

Given: Right angle triangle ABC at B , Length of AB = 12 unit and length of BC = 11.5 unit and in right angle triangle PQR at Q , length of QR = 34.5 unit.

Also it is given that  Angle A is congruent to angle P and angle C is congruent to angle R.

To find the length of QR:

It is given that ΔABC and ΔPQR are Similar triangle

then, by the definition of similar triangle:

\frac{PQ}{AB} = \frac{QR}{BC}

Substitute the value of AB, QR and BC to solve for PQ;

\frac{PQ}{12}=\frac{34.5}{11.5} or

PQ = \frac{34.5 \times 12}{11.5}

On simplify:

PQ = 3 \times 12 = 36

Therefore, the length of side PQ is 36 units.





8 0
3 years ago
Read 2 more answers
The function f(x)=2x+1 is defined over the interval [2, 5]. If the interval is divided into n equal parts, what is the value of
vodomira [7]

Answer:

  D.  5 +6k/n

Step-by-step explanation:

The width of the interval is (5 -2) = 3. The width of one of n parts of it will be ...

  3/n

Then the difference between the left end point of the interval and the value of  x at the right end of the k-th rectangle will be ...

  k·(3/n) = 3k/n

So, the value of x at that point is that difference added to the interval's left end:

  2 + 3k/n

The value of the function for this value of x is ...

  f(2 +3k/n) = 2(2 +3k/n) +1 = (4 +6k/n) +1

  = 5 +6k/n

4 0
3 years ago
The Fibonacci sequence 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, … is formed by summing two consecutive numbers to get the next number.
adelina 88 [10]

By counting the combinations, we will see that there are 10 combinations such that the sum gives a Fibonacci number.

<h3>How to count the combinations?</h3>

We have two number cubes with 6 outcomes each, such that we have a total of 36 combined outcomes.

For each dice, the outcomes are:

{1, 2, 3, 5, 8, 13}

Now, let's count the combinations that also give a Fibonacci number (these are given by adding two consecutive numbers in the sequence).

I will list each possible red outcome, then the blue outcomes that would give a Fibonacci term, and then we can count the number of combinations.

  • Red         Blue           number of combinations.
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  • 2              1, 2                           2
  • 3              2, 3                          2
  • 5             3, 8                           2
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  • 13            8                               1

Adding the numbers of combinations, we have:

C = 1 + 2 + 2 + 2 + 2 + 1 = 10

There are 10 combinations that give a Fubbonaci number.

If you want to learn more about combinations, you can read:

brainly.com/question/2280026

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3 years ago
Point F is located at (3, 4) on a coordinate plane. If Point F is reflected across
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(-3,4)
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If 12 computers cost $42, how many computers can |<br> buy with $35?
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Answer:

10 is the answer hope this helps :)

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