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zhannawk [14.2K]
3 years ago
11

What are the solution(s) for the following quadratic equation?

Mathematics
1 answer:
ExtremeBDS [4]3 years ago
5 0

\\ \rm\rightarrowtail 5x^2-2x-7=0

\\ \rm\rightarrowtail 5x^2-7x+5x-7=0

\\ \rm\rightarrowtail x(5x-7)+1(5x-7)=0

\\ \rm\rightarrowtail (x-1)(5x-7)=0

\\ \rm\rightarrowtail x=1,7/5

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Some one help me pleaseeeeeeeeeee
julia-pushkina [17]

Answer:

slope = \frac{5}{2}

Step-by-step explanation:

Calculate the slope m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (0, - 1) and (x₂, y₂ ) = (2, 4) ← 2 points on the line

m = \frac{4+1}{2-0} = \frac{5}{2}

3 0
3 years ago
A dietitian at a hospital wants a patient to have a meal that has 126 grams of protein, 82 grams of carbohydrates, and 101.5 mil
katovenus [111]
<h3>The dietitian provide 2.5 numbers of salmon steak, 1 baked egg and 2 acorn squash for the patient. </h3>

Step-by-step explanation:

Let

Number of salmon steak = x

Number of baked eggs =y

and Number of acorn squash =z

Total amount of protein that is provided to the patient =40 x +20 y+3 z

Total amount of carbohydrates that is provided to the patient = 20 x+2y +15z

Total amount of vitamin A that is provided to the patient = x+25 y+ 37z

According to the problem,

40x+20y+3z=126,     20x+2y+15z=82    and   x+25y+37z= 101.5

Solving the above equations

we get x= 2.5 ,y= 1 and z=2

So ,  The dietitian provide 2.5 numbers of salmon steak, 1 baked egg and 2 acorn squash for the patient.

4 0
3 years ago
Are the following lines parallel perpendicular or neither: x=6 and x=12
suter [353]

Answer:

Not Parallel

Step-by-step explanation:

I think so sorry If I'm wrong

5 0
3 years ago
How do I calculate f(x) from a graph
slamgirl [31]
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krek1111 [17]
Can u give more details
5 0
3 years ago
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