9th grade math please help its urgenttt

B

Step-by-step explanation:

observe

B

Step-by-step explanation:

(see attached for reference)

for a quadratic equation:

ax²+bx+c = 0

The solution given by the quadratic formula is :

x = [ -b ± √(b²-4ac) ] / 2a

comparing this to the given equation

2x² - 5x + 5 = 0

it is clear that a = 2, b = -5 and c = 5,

substituting the values into the quadratic formula:

x = [ -(-5) ± √( (-5)²-4(2)(5) ) ] / 2(2)

x = [ 5 ± √( 25 - 40 ) ] / 4

x = [ 5 ± √( -15 ) ] / 4    

x = [ 5 ± √( (-1)(15) ) ] / 4

x = [ 5 ± √( -1) √(15 ) ] / 4   (recall that √(-1) = i )

x = [ 5 ± i √(15 ) ] / 4   (answer B)

Hope this helps!

e. hinduismt religion first emerged on the indian subcontent

a) at most means it can cost $12 or less

so the inequality sign would be ≤

you would then need to multiply the number of toppings by the 0.35 for each one and add it to the cost of the cheese pizza.

the equation would be 9.99 + 0.35x ≤ 12

b) using the above equation:

9.99 + 0.35x ≤ 12

subtract 9.99 from each side:

0.35x ≤2.01

divide both sides by 0.35:

x ≤ 2.01 / 0.35

x ≤5.74

at most you could have 5 toppings.

the 5 topping pizza would cost: 0.35 x 5 = 1.75 + 9.99 = $11.74