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Nastasia [14]
3 years ago
9

Use the discriminant to describe the roots of each equation. Then select the best description.

Mathematics
1 answer:
zhuklara [117]3 years ago
6 0
◆ QUADRATIC RESOLUTIONS ◆

given \:  \: equation \:  \:  -  \\ \\   3 {x}^{2}  +7x - 2 = 0 \\  \\ here \: a = 3 \: \:  , \:  \: b = 7  \: , \:  \: c =  - 2 \\  therefore  \:  \: , \\ discriminant \:  =  {b}^{2}  - 4ac = 7 3 \\  \\  using \: quadratic \: formula \:  \: , \\  \\ x =  \frac{ - b +  \sqrt{d} }{2a}  =   \frac{ - 7 +  \sqrt{73} }{6}   \:  \:  \:  \:  \: ans.\\  \\ also \: \:  , \\  \\ x =  \frac{ - b  -   \sqrt{d} }{2a}  =   \frac{ - 7  -  \sqrt{73} }{6} \:  \:  \:  \:  \:  \: ans.
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Marlon earned $8.50 per hour plus an additional $80 in tips waiting tables on Saturday. He earned at least $131 in all. If h rep
ella [17]

Answer:

<h2>8.50h + 80 ≥131</h2>

Step-by-step explanation:

The answer is not in the option

Step one:

given data:

we are told that the hourly earning= $8.50

then additional tip=$80

total earnings=$131.

Step two:

the linear function for the total earning is the same as the equation of a line

y=mx+c

where

y represents the total earning of $131

m represents the hourly earning= $8.50

x represents the number of hours h

c represents the tip of $80

The expression for the situation is modeled as

<h2>8.50h + 80 ≥131</h2>
8 0
3 years ago
Can some one help me with this?:
Studentka2010 [4]
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7 0
4 years ago
If the cost of a medium shirt is $10 and a small is $8, Make a table to find the cost for all
Annette [7]
<h3>Answer: I can't draw on this though</h3>

Step-by-step explanation:

3 0
3 years ago
Brainlest if done all thank you
Shkiper50 [21]
#1: for x input:6,9,13. y=12,15,19 #2: for x input:0,3,7. y= -1,2,6, #3: for x input:0,6,12, y=0,18,36 #4: for x input:2,4,5. y=1,2,2.5 #5: 33
7 0
3 years ago
Read 2 more answers
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Katena32 [7]
The answer to your question is the last option because the total of the whole table is 1.0. And, mathematically speaking, y cannot possibly be 1.0 if the tables values all add up to 1.0
6 0
3 years ago
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