Answer with explanation:
The Meaning of the word Random is , selecting instantaneously from a group of Population for the study.
Suppose you are in a room where mathematics students are studying.You selected few week and few quite intelligent among them for a test to check how whole group of maths student is performing in maths.
So, Selecting participants at random will, on average, lead to samples that are...........
Option B.→ Representative of the population from which they were sampled.
Answer:
2(-x+4)+5x-3 = 11
-2x+8+5x-3=11
-2x+5x+8-3=11
-3x+5=11
-3x=11-5
-3x=6
x=6/-3
x=-3/1
or x=-3. answer
Step-by-step explanation:
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Answer:
x = 4 + sqrt(73) or x = 4 - sqrt(73)
Step-by-step explanation by completing the square:
Solve for x:
(x - 12) (x + 4) = 9
Expand out terms of the left hand side:
x^2 - 8 x - 48 = 9
Add 48 to both sides:
x^2 - 8 x = 57
Add 16 to both sides:
x^2 - 8 x + 16 = 73
Write the left hand side as a square:
(x - 4)^2 = 73
Take the square root of both sides:
x - 4 = sqrt(73) or x - 4 = -sqrt(73)
Add 4 to both sides:
x = 4 + sqrt(73) or x - 4 = -sqrt(73)
Add 4 to both sides:
Answer: x = 4 + sqrt(73) or x = 4 - sqrt(73)
Answer:
what are the answers
Step-by-step explanation:
Answer:
192.5 ft²
Step-by-step explanation:
The large sector of the circle has a central angle measure of 360° -100° = 260°, so its area will be (260°/360°) of the circle, or ...
large sector area = (260/360)πr² = 13π/18·(8.35 ft)² ≈ 158.195 ft²
The area of the 100° triangle is ...
triangle area = (1/2)r²·sin(100°) = (1/2)(8.35 ft)²·sin(100°) ≈ 34.332 ft²
Then the shaded area is ...
shaded area = large sector area + triangle area
= 158.195 ft² +34.332 ft² ≈ 192.5 ft²
The shaded area is about 192.5 square feet.
