Answer:
2+i or 2-i (D)
Step-by-step explanation:
First you use the quadratic formula. X= (-b +/- 
)/2a
a=1
b=-4
c=5
X= (4 +/- 
)/2
X=(4 +/- 
)/2
The square root of -4 is 2i. i=√-1. Therefore 2i= 2√-1 .If you simplify that, it becomes √-4i.
X= (4+/- 2i)/2
X= 2+/-i
X= 2+i or 2-i
It's about .83333. You divide 4/15 first and then 8/25. then you divide both after that
$750 / $30 = 25 maths teaching kids
$350 / $25 = 14 maths starter kits
if you wanted to see if it was right, you would just do 14*25 and you would get $350
hope I helped!!
Answer:
There are four basic properties of numbers: commutative, associative, distributive, and identity.
Step-by-step explanation:
You should be familiar with each of these. It is especially important to understand these properties once you reach advanced math such as algebra and calculus. Distributive Property.
<h3>
Answer: 1.5</h3>
Explanation:
The constant of proportionality is the same as the slope for equations of the form y = kx.
To find the value of k, we divide the y over x values.
k = y/x = 12/8 = 1.5
or
k = y/x = 6/4 = 1.5
Either way the answer is 1.5
This means Ziah ran at a rate of 1.5 city blocks per minute.
