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2 years ago

Which is the graph of a quadratic equation that has a negative discriminant

Mathematics

2 answers:

sergejj [24]2 years ago

8 0

Answer:

The only one

Step-by-step explanation:

The one that is shown has a negative b^2-4ac value.

We know this because the function has no real roots -> that means that they must be complex, which can only occur if b^2-4ac < 0

tekilochka [14]2 years ago

7 0

Answer:

it's D, the last graph.

Step-by-step explanation:

took the unit test review and made a 100

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The Ramos family wants to buy a Play Station 4 for $299.00, along with accessories and games. A wireless controller costs $44.99

Lilit [14]

Answer:

Part A: 299 + 45A + 30B + 50c

Part B: 569 (or 570 if you round it up)

Step-by-step explanation:

Part A:

Because there is no variable for the number of PlayStation 4s, let's assume that there is only one. That will be 299.

If A is the number of wireless controllers and each wireless controller is worth 45 dollars each, the price for the wireless controller(s) is 45A.

If B is the number of wireless controller charging stations and each wireless controller charging station cost 30 dollars, then the price of the wireless controller charging station(s) is 30B

If C is the number of games and each game cost 50 dollars, then the price of the game(s) is 50C

Put that all together, and we get 299 + 45A + 30B + 50c.

Part B:

Let's plug the numbers into the formula.

A = 2

B = 1

C = 3

$299 + 45A + 30B + 50c = 299 + 90 + 30 + 150 = 569\ dollars$

3 0

2 years ago

Ashley can bake 64 cakes in 12 hours how many can she bake in 36 hours

mrs_skeptik [129]

Answer:

192 cakes

Step-by-step explanation:

36/12= 3

You multiply both numbers by 3:

12*3= 36 hours

64*3=192 cakes

192 cakes in 36 hours

6 0

2 years ago

Lacey traded U.S. dollars for Thai baht at an exchange rate of 1 U.S. dollar= 33.1898 Thai baht. She gave the exchanger a total

Rudik [331]

The answer is C. 38,168.27.

4 0

3 years ago

Read 2 more answers

Felix and Oscar own a pastry shop. Working alone Felix can decorate 8 dozen cookies in 90 minutes. Oscar, on

Bingel [31]

Working together, decorating 16 dozens of cookies will take 103 minutes.

Let's calculate theor individual work rate :

Rate = 1/ time

Felix's rate = 1/90

Oscar's rate = 1/120

Combined rate = 1/90 + 1/120 = (4 + 3) / 360 = 7/360

Time taken for both of the to decorate 8 dozens :

Reciprocal of their combined rate = 1 ÷ (7/360) = 51.428571 minutes

Hence, the time taken to decorate 16 dozens will be :

(16/8) × 51.428571 = 102.857 = 103 minutes (nearest while number).

Learn more :brainly.com/question/18796573

8 0

1 year ago

Help meh puh-leaseeeee!!!

Rama09 [41]

Answer:

y=2x+1

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers