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Soloha48 [4]
2 years ago
12

How do I solve this problem

Mathematics
1 answer:
Ivanshal [37]2 years ago
5 0

Answer:

It represents the product of two rational numbers and is equivalent to a rational number.

Step-by-step explanation:

\sqrt{25}  = 5

because

5 \times 5 = 25

and

\sqrt{4}  = 2

because

2 \times 2 = 4

The numbers are all rational because they can all be put into fraction form.

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An angle is 4 times as great as it's supplement. Find the measure of the supplement of the angle
FromTheMoon [43]
It is 40 and 160. (:
3 0
3 years ago
Brainlist to whoever shows me how to solve this step by step.
Andrews [41]

Answer:

  x ∈ {-4, 2}

Step-by-step explanation:

The x-coefficient (+2) is the sum of the constants in the binomial factors of the equation, and the constant term (-8) is their product.

Since you're familiar with the divisors of 8, you know that the two factors of -8 that total +2 are -2 and +4. These are the constants in the binomial factors:

  f(x) = x^2 +2x -8

  f(x) = (x -2)(x +4)

The roots of f(x) are the values of x that make these factors be zero. They are x=2 and x=-4.

The roots of f(x) are -4 and 2.

_____

Above is the solution by factoring. We can also "complete the square" to find the roots. Anytime we're looking for roots, we want the values of x that make f(x) = 0.

  x^2 +2x -8 = 0

  x^2 +2x = 8 . . . . . add the opposite of the constant

  x^2 +2x +1 = 8 +1 . . . . . add the square of half the x-coefficient: (2/2)² = 1

  (x +1)² = 9 . . . . . . . . . . . write as squares

  x +1 = ±√9 = ±3 . . . . . . take the square root

  x = -1 ± 3 . . . . . . . . . . . subtract 1

The roots are x=-4, x=2.

4 0
3 years ago
I need help with finding the arc measure of this problem.
Leto [7]

Answer:

180+69=249

I got 180 from the ABC, that is half the circle then + the 69

4 0
2 years ago
Help pls if someone could explain how to do it (or just do it) that would be great
Drupady [299]

Answer:

okay for #2 do 3 times 3.14 divided by 4

Step-by-step explanation:

do that and tell me what you get

8 0
3 years ago
(x - 1)-+ x (1 - x)<br>-<br>-(1+x)<br>--x-1<br>is it correct?<br>​
77julia77 [94]
Ya i think that it would bee
8 0
3 years ago
Read 2 more answers
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