you have a quadratic equation that can be factored, like x2+5x+6=0.This can be factored into(x+2)(x+3)=0.
So the solutions are x=-2 and x=-3.
2.
<span><span>1. Try first to solve the equation by factoring. Be sure that your equation is in standard form (ax2+bx+c=0) before you start your factoring attempt. Don't waste a lot of time trying to factor your equation; if you can't get it factored in less than 60 seconds, move on to another method.
</span><span>2. Next, look at the side of the equation containing the variable. Is that side a perfect square? If it is, then you can solve the equation by taking the square root of both sides of the equation. Don't forget to include a ± sign in your equation once you have taken the square root.
3.</span>Next, if the coefficient of the squared term is 1 and the coefficient of the linear (middle) term is even, completing the square is a good method to use.
4.<span>Finally, the quadratic formula will work on any quadratic equation. However, if using the formula results in awkwardly large numbers under the radical sign, another method of solving may be a better choice.</span></span>
Answer:
x = 6
x = 16
y = 11
Step-by-step explanation:
Honestly you're not going to read this part but eh.
13x - 5 = 7x + 31 (because bisect means these two angles are congruent)
6x = 36 (combined like terms)
x = 6 (divided by 6)
Didn't read this either but eh again.
5x - 4 + 7x - 8 = 180 (because supplementary angles)
12x - 12 = 180
12x = 192
x = 16
Plug in to find y:
9y + 5 = 7(16) - 8
9y + 5 = 104
9y = 99
y = 11
Answer:
25-10 (25 - A and 10 - B)
Step-by-step explanation:
25 - 10 equals the 15 point margin
25 plus 10 equals the 35 point score combined
Hope it helps
Answer:
x^2 or x²
Step-by-step explanation:
2x^2 divided by 2 is
=2x² / 2
=x²
Answer:
y=4x+7.75; continuous
Step-by-step explanation:
Let's get the equation first. So she needs one piece that's 7.75 inches long: that's a given.
y = 7.75
Now for each piece of yarn - and she needs 4 pieces - they will be x length. If she wanted them to be 1 inches in length, she would use 4 inches of yarn. So multiply those:
<u>y = 7.75 + 4x</u>
So is this graph discrete or continuous? Remember that continuous means no holes, not stopping, a nice line. Discrete means it has holes or gaps. (In science, we would call discrete "quantized.") In this case, x will be <u>continuous, </u>because Julie can cut any length of yarn for the 4 pieces. She need not choose an integer value. Each piece could logically be 2.5 inches, or 3.1415 inches.