{–½, 2}{–½, –2}
{½, 2}
{½, –2} Use the quadratic formula to solve 2y2 – 5y = –2.

Answers

Answer 1

Answer: $2y^2 - 5y =-2\n \n2y^2 - 5y +2=0\n \n a=2 , \ b=-5, \ c=2 \n \n\Delta =b^2-4ac = (-5)^2 -4\cdot2\cdot 2 = 25-16=9 \n \ny_(1)=(-b-√(\Delta) )/(2a)=(5-√(9))/(2\cdot 2 )=(5-3)/(4)=(2)/(4)= (1)/(2)$

$y_(2)=(-b+√(\Delta) )/(2a)=(5+√(9))/(2\cdot 2 )=(5+3)/(4)=(8)/(4)= 2\n \nAnswer : \ \left \{ (1)/(2),2 \right \}$

Answer 2

Answer:

Answer:

1/2, 2

Step-by-step explanation:

i took the test

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What is the maximum value of the function f(x)= 12 - 3sin (3pi/2 x)

188= 45 - v = please help solve for v

Answers

Answer:

v=-143

Step-by-step explanation:

45-v=188

-v=188-45

-v=143

v=-143

Answer:

Step-by-step explanation:

45 - v = 188

-v = 188 - 45

-v = 143

v = -143

A roller coaster has 10 carts that will seat up to 4 people each. If 26 people are seated in the carts and NO carts are empty, what is the greatest possible number of carts that could be filled with 4 people?

Answers

To maximize the number of carts filled with 4 people, you can start by filling as many carts as possible with 4 people and then see how many people are left.

Each cart can seat up to 4 people, and you have 26 people in total. So, you can fill as many carts as possible with 4 people:

26 / 4 = 6.5

You can fill 6 carts completely with 4 people each. However, you will have 2 people left.

Now, you can't fill another complete cart with those 2 people because each cart can only seat 4. Therefore, you can't completely fill any more carts.

So, the greatest possible number of carts that could be filled with 4 people is 6.

Solve 3x^2 - 20x - 7 =0

Answers

This involvea factoring the polynomial into binomials and solving.
So make it (3x+1)(x-7)
X equals 7 and -1/3

3x^2-20x-7=0

9x-20x-7=0

-11x-7=0
-7 -7
_______
-11x 0
_____
11 11

your answer is 0

A rectangular swimming pool is 25 ft long and 20 1/2 ft wide, and it must be filled to a depth of 4 1/2 ft. One cubic foot of water is equal to 7 1/2 gallons. How many gallons of water will it take to fill the pool?