<span>apples = (50+x)(800-10x)
= (40000-500x+800x-10x^2)
= -10x^2 +300x + 40000
Max occurs when x = -b/(2a) = -30/(-2) = 15
= -x^2 + 30x + 4000
Max occurs when x = -b/(2a) = -30/(-2) = 15
15 trees should be added</span>
His mistake is that juice doesn't come from the post office
jk
1 gallon=4qt
3 gallon=12qt
he made mistake because he thought that 1 gallon=1/4 quart when it is really 1/4 gallon=1quart
A polygon that has both reflectional and rotational symmetry includes:
- B. Square
- C. Triangle
- E. Equilateral Triangle.
<h3>What is a polygon?</h3>
A polygon is a closed curve made up of a set of line segments (sides) connected in such a way that no two segments cross.
Examples of polygons are triangles (three sides), quadrilaterals (four sides), and pentagons (five sides).
Triangle, square, and other quadrilaterals have both line symmetry and rotational symmetry.
Thus, a polygon that has both reflectional and rotational symmetry includes Options B, C, and E.
Learn more about polygons and reflectional and rotational symmetry at brainly.com/question/1592456 and brainly.com/question/18633533
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Answer:
5 ; 0.728 ; 0.00002
Step-by-step explanation:
According to the Central limit theorem, for a normal distribution, the population mean equals the sample mean., Hence the population mean, μ = sample mean = 5
The standard deviation of sampling distribution :
Standard deviation / sqrt(n)
σ / sqrt(n)
σ = 3 ; n = 17
3 / sqrt(17)
3 / 4.1231056
= 0.7276
= 0.728
3.)
P(x < 2) :
Using :
Z = (x - mean) ÷ s/sqrt(n)
P(x < 2) = (2 - 5) ÷ 3/sqrt(17)
P(x < 2) = -3 / 0.7276068
P(x < 2) = - 4.1231060
Z < - 4.123 = 0.00002 (Z probability calculator).