Answer:
a. Negative discriminant: above
b. Positive discriminant: below
c. Discriminant is zero: on
Step-by-step explanation:
If the discriminant is negative, then there are no real zeros. We have an upward-facing parabola, then the vertex is located above the x-axis
If the discriminant is positive, then there are two different real zeros. We have an upward-facing parabola, then the vertex is located below the x-axis
If the discriminant is zero, then there is one zero. We have an upward-facing parabola, then the vertex is located on the x-axis
Answer: No. both are independent quantity. Therefore, the number of books purchased does not affect the value of m.
Step-by-step explanation:
Given: Julio and his sister bought 8 books and m magazines for $1 each.
The amount of money that Julio spent is represented by the expression 1/2(m+8)
Thus, the amount she and her sister will pay is dependent on the number of books and the number of magazines, but the number of magazines and the number books are independent quantity.
Therefore, the number of books purchased does not affect the value of m.
The regression equation to predict the number of cans sold on a day that is 90°F will be 871.
<h3>What is the linear system?</h3>
A linear system is one in which the parameter in the equation has a degree of one. It might have one, two, or even more variables.
A convenience store manager notices that sales of soft drinks are higher on hotter days, so he assembles the data in the table, shown above. Use technology to find the equation of the least-squares regression line.
Then the regression line will be passing through (55, 340) and (84, 780). Then we have
y - 340 = 15.17(x - 55)
Then the regression equation to predict the number of cans sold on a day that is 90°F will be
y - 340 = 15.17 (90 - 55)
y = 871
More about the linear system link is given below.
brainly.com/question/20379472
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Answer:
558 m
Step-by-step explanation:
we know s=ut+1/2at by newtons 2nd law of motion
here initial velocity (u) is 17 ,time taken(t) is 9 sec and acceleration due to gravity (a) is 10m/s2
0.1(71x+33)
the soultion is
