Answer:
x is 64 degrees
Step-by-step explanation:
Since the polygon is a quad we know all the angles add up to 360. So, we can do :
100 + 130 + 66 = 360 - x
296 = 360 - x
Subtract 360 on both sides
-64 = -x
Multiply by negative one on both sides and we get
64 = x
x is 64 degrees
This polynomial does not factor so you have to complete the square or use Quadratic formula.
x^2 + 6x + 7 = 0
Using completing the square, subtract 7 from both sides.
x^2 + 6x = -7
divide 6 by 2 = 3, square 3 = 9, add 9 to both sides.
x^2 + 6x + 9 = 2
(x + 3)^2 = 2
Take the sqrt of both sides
x + 3 = + - sqrt 2
subtract 3 from both sides
x = - 3 + - sqrt 2
This is not an answer choice but it is the correct answer. You either typed the choices incorrectly or the equation incorrectly.
Answer:
Yes. 25 and 26 equal 51, so one of the consecutive numbers could be 25.
Step-by-step explanation:
The larger of the two roots of the equation 
would be 28.59.
<h3>How to find the roots of a quadratic equation?</h3>
Suppose that the given quadratic equation is
Then its roots are given as:
The given quadratic equation is
now, the roots of the equation are
The two roots are 0.27 and 28.59.
Thus, the larger of the two roots of the equation would be 28.59.
Learn more about finding the solutions of a quadratic equation here:
brainly.com/question/3358603
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Answer:
70 words.
Step-by-step explanation:
Multiply the number of words he can type in one minute (10) by the number of minutes he is typing for (7).
