2 years ago

Consider the equation - 3x2 + 27x - 63 = 0. What is the discriminant of the equation?

Mathematics

1 answer:

poizon [28]2 years ago

5 0

Answer:

answer is 19/9.

Step-by-step explanation:

give me brielient.

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Lucy purchased a prepaid phone card for $15 Long distance calls cost 16 cents a minute using this card. Lucy used her card only

Anarel [89]

I think you do $15 x 16 cents = 900minutes / 16 cents = 60 minutes.

And then do $10.52 x 16cents = 168.32

Subtract 900-168.32 = 731.68minutes / 16cents= 45.73 minutes not used

60minutes - 45.73 =14.27min used.

Sorry if this isnt correct.

5 0

3 years ago

Sarah has three more than four times the money that Jessica has. Together they have $72. How

hoa [83]

Answer:

Jessica has $13,80 and Sarah has $58.20.

Step-by-step explanation:

Let j be the amount of money that Jessica has.

Let s be the amount of money that Sarah has.

s + j = 72

Since Sarah has 3 more than 4 times what Jessica has...

s = 4j + 3

So 4j + 3 + j = 72

5j = 69

j = 13.8

So Jessica has $13,80.

Therefore Sarah has $58.20.

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3 years ago

What is the vertex form of the function y = x2 + 8x – 3

Scrat [10]

Answer:

y=(x+4)²-19

Step-by-step explanation:

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3 years ago

18.386 to the nearest hundreds of a meter

zzz [600]

18.39 thats 18.386 rounded to the nerest hunderths

6 0

3 years ago

Please help. im taking the test right now and i need the answer!!

photoshop1234 [79]

Answer:

Either -2 or + 1

Step-by-step explanation:

I can't tell u exactly because I don't know the answer choices.

6 0

3 years ago