Answer:
$10.5
Step-by-step explanation:
4(5.25) = $21 (total amount of money spent)
we want to divide that by 2 because we want to find the cost of one pizza
21/2 = $10.5
6n
1.2x10^-11
You never start with a zero so you move the decimal 11 spots the right which makes it negative
Let cases of Lyme disease = x
x = 2, 1, 3, 4, 5, 1, 2, 1, 6, 5, 4, 1
y = 0, 1, 2, 1, 3, 5, 2, 3, 3, 3, 1, 0
b) Linear correlation between Lyme disease and drowning deaths.
r = -15/ √(24*36.92)
r = -0.504
A. Increasing on (-infinitity, infinity)
If you look at the graph from left to right, the line is always going up towards higher numbers, meaning that it's always increasing.
<u>Algebraically</u>
0.5x-7= √(-5x+29)
(0.5x-7)² = -5x+29
(0.5x)² - 2*0.5x*7 + 7² = -5x+29
0.25x² - 7x + 49 + 5x - 29 = 0
0.25x² - 2x + 20 = 0
Its discriminant is:
b² - 4*a*c
(-2)² - 4*0.25*20
-16 < 0
Therefore, the equation has no solutions.
<u>Graphically</u>
In the picture attached, the plots of the functions are shown. We can see that they don't intersect each other, and that is why there is no solution.