Answer:
(x-4.34)(x+1.84)=0
Step-by-step explanation:
2x^2 -5x-16=0
delta=
x1,2=
A SECOND-degree polynomial is called a ______expression
2 answers:
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Answer:
The total length (in units) of the biking trail is 17 units.
Step-by-step explanation:
o find distance between points A(x¹, y¹) and B(x², y²), we use formula:
The trail starts at P(−2, 2) and goes to Q(5, 2).
So, the distance PQ will be calculated as:
PQ = 7 units
Then the trail goes from Q(5, 2) to R(5, −5).
So, the distance QR will be calculated as:
QR = 7 units
And then from R(5, −5) to S(8, −5).
QR = 3 units
Hence, the total length of the biking trail is:
PQ + QR + QR = 7 + 7 + 3 = 17 units
Keywords: distance formula, length
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Answer:
x = ± 10
Step-by-step explanation:
To solve the equation let y = 0 , that is
0 = 100 - x²( add x² to both sides )
x² = 100 (I take the square root of both sides )
x = ± = ± 10
Then solution is x = - 10, x = 10