Answer:
C.
Step-by-step explanation:
First, call the unknown angle x.
Use the Exterior Angle Theorem:
140 = 45 + x
x = 95°
I have attached all the graphs below. I below you cannot factor these down. You might just have to use the graphs to find the values of x.
Hope I helped :)
Answer:
It has a scalar factor of 2.5
Step-by-step explanation:
You can just look at the bottom, the first shape has a bottom of 4 square while the second image has a bottom of 10 squared. You can divide the two to get the scaling factor. 10/4 = 2.5
You can also see one of the side square
<span>The expression b^2-4ac is called the discriminant. If it is zero, or positive and a perfect square (like 4, 9, 25, 36, etc), the solutions to the quadratic equation will be rational numbers and factoring will work.
On the other hand, if the discriminant is positive but not a perfect square, the solutions will be irrational, and if it is negative, there are no real solutions. In either of those cases, the quadratic expression cannot be factored.
In the equation 2x^2+7x+3=0, the discriminant is b^2-4ac = 7^2 - 4*2*3= 49-24 = 25 = 5^2
That means that the solutions can be found by factoring.
I hope my answer has come to your help. Thank you for posting your question here in Brainly.</span>
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