Answer:
D
Step-by-step explanation:
The quadratic formula:
![\frac{-b\pm \sqrt{b^2-4ac}}{2a}](https://tex.z-dn.net/?f=%5Cfrac%7B-b%5Cpm%20%5Csqrt%7Bb%5E2-4ac%7D%7D%7B2a%7D)
where a is the coefficient of
, b being the coefficient of
and c being the constant.
Plug in the values:
![\frac{-\left(-5\right)\pm \sqrt{\left(-5\right)^2-4\cdot \:2\cdot \:5}}{2\cdot \:2}](https://tex.z-dn.net/?f=%5Cfrac%7B-%5Cleft%28-5%5Cright%29%5Cpm%20%5Csqrt%7B%5Cleft%28-5%5Cright%29%5E2-4%5Ccdot%20%5C%3A2%5Ccdot%20%5C%3A5%7D%7D%7B2%5Ccdot%20%5C%3A2%7D)
![\frac{5\pm\sqrt{-15} }{4}](https://tex.z-dn.net/?f=%5Cfrac%7B5%5Cpm%5Csqrt%7B-15%7D%20%7D%7B4%7D)
Since ![\sqrt{-15} =\sqrt{-1} \sqrt{15} =i \sqrt{15}](https://tex.z-dn.net/?f=%5Csqrt%7B-15%7D%20%3D%5Csqrt%7B-1%7D%20%5Csqrt%7B15%7D%20%3Di%20%5Csqrt%7B15%7D)
The answer is:
![\frac{5\pm i \sqrt{15} }{4}](https://tex.z-dn.net/?f=%5Cfrac%7B5%5Cpm%20i%20%5Csqrt%7B15%7D%20%7D%7B4%7D)
Step-by-step explanation:
I want to say B) 130 but not 100% sure. Sorry if my answer is wrong.
Answer:
From top to bottom: 1/8, 2 1/2, 3
Step-by-step explanation:
The first number means that it take 8 quarters to equal a toonie and you don't have a toonie with 1 quater
brainliest please
B be because
8*3+8*2=24+16