Answer:
5y
Step-by-step explanation:
Brainliest me pls
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A
substitute each point into the inequality and check validity of solution
A (4, 4)
4 ≤ 16 - 12 + 2 ⇒ 4 ≤ 6 → True hence valid solution
B (3, 3 )
3 ≤ 9 - 9 + 2 ⇒ 3 ≤ 2 → False hence not valid
C (1, 1 )
1 ≤ 1 - 3 + 2 ⇒ 1 ≤ 0 → False hence not valid
D (2, 2 )
2 ≤ 4 - 6 + 2 ⇒ 2 ≤ 0 → False hence not valid
There are 30 students in class
<em><u>Solution:</u></em>
Let "x" be the total number of students in class
Given that,
The number of boys represents 54% of the class
Therefore,
Number of boys = 54 % of total number of students
Number of boys = 54 % of x
Given that, There are 14 girls in a class
Therefore,
Number of girls = 14
Thus we get,
Number of boys + number of girls = total number of students
0.54x + 14 =x
x - 0.54x = 14
0.46x = 14
Divide both sides by 0.46
Thus there are 30 students in class
If we want to use slope-intercept form y=mx+b, pick two points and find the slope (value m on equation). Then find the coordinates of y-intercept (value b on equation).
Answer:
Vertex:
Zeros: and
Step-by-step explanation:
<u>1) Find the x-coordinate of the vertex</u>
where the equation is
<u>2) Find the y-coordinate of the vertex</u>
Plug the x-coordinate back into the original equation
Therefore, the vertex of the parabola is .
<u>3) Find the zeros of the parabola</u>
Rewrite the equation so that it equals 0
Divide both sides by -16
Simplify the fraction
Complete the square; first isolate t²-t
Complete the square; Add to both sides
Take the square root of both sides
Isolate t
Find the zeros
Therefore, the zeros of the parabola are and .
I hope this helps!