Answer:
8 years old
Step-by-step explanation:
oldest= 16
8+12+15+16= 51
51/4 = 12.73 ( average)
Table (A) represents the parabola y = x² - 6x in which the parabola opens and the y-intercept is (0, 0) table (A) is the correct choice.
<h3>What is a parabola?</h3>
It is defined as the graph of a quadratic function that has something bowl-shaped.
We have the tables shown in the picture.
We know the quadratic form of a parabola is:
y = ax² + bx + c
If a > 0 the parabola opens
In the equation:
y = x² - 6x
1 > 0 the parabola opens and y-intercept is:
y = 0 (plug x = 0 in the given equation)
a = 1, b = -6, and c = 0
Thus, table (A) represents the parabola y = x² - 6x in which the parabola opens and the y-intercept is (0, 0) table (A) is the correct choice.
Learn more about the parabola here:
brainly.com/question/8708520
#SPJ1
Answer:
7y - 4x
Step-by-step explanation:
Given
- 3(2x - y) + 2y + 2(x + y) ← distribute parenthesis
= - 6x + 3y + 2y + 2x + 2y ← collect like terms
= 7y - 4x
Answer:
49.8 ft²
Step-by-step explanation:
the picture in the attached figure
given:
a=3, b=1 c=1.8
To know the surface area:
surface area of the figure=surface area of cube+surface area of triangular prism
first lets find out the area of cube and triangular prism.
surface area of cube=4*a²
surface area of cube= 4*3² => 36 ft²
surface area of triangular prism=2*[a*c]+2*[a*b/2] = 2*[3*1.8]+[3*1]
surface area of triangular prism=10.8 +3 = > 13.8 ft²
Therefore, surface area of the figure=36 ft²+13.8 ft²
surface area of the figure= 49.8 ft²
the answer is:
49.8 ft²
Answer:
with what I am to lol
Step-by-step explanation:
