The function f(x) = –x2 − 2x + 15 is shown on the graph. What are the domain and range of the function?The domain is all real numbers. The range is {y|y < 16}.
The domain is all real numbers. The range is {y|y ≤ 16}.
The domain is {x|–5 < x < 3}. The range is {y|y < 16}.
The domain is {x|–5 ≤ x ≤ 3}. The range is {y|y ≤ 16}.
Answers
First, you can simplify the function finding the perfect square:
This form of function gives you the coordinates of parabola vertex - (-1,16).
From the diagram you can see that all values for x are possible, then the domain is (all real numbers). Also you can see that values of y decrease from y=16 to
, then the range is
(or {y|y ≤ 16}).
Answer: correct choice is B.
The vertex form of the function is:
f(x) = -(x+1)2 +16
This means that the graph is facing downwards with the vertex at (-1,16).
So, the range is {y|y ≤ 16}
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A coin is tossed ten times. The probability of heads on each toss is 0.5. Evaluate the probability of getting exactly 6 heads.
Christi buys 48 barrettes. She shares the barrettes equally between herself and her 3 sisters. Write an expression to represent the number of barrettes each girl gets.
Answers
πr²h+(2/3)πr³=V
πr²h=V-(2/3)πr³
h=(V-(2/3)πr³) / (πr²)
h=V/πr² - 2/3r
Answer i: h=V/πr² - (2/3)r
Data:
V=245
r=7
h=(245 / 49π) - (14/3)
h=(5/π) - (14/3)
h=(15-14π)/3π
h=-3.075
Answer ii: h=-3.075
Answers
Answer:
ghfvhgfcv
Step-by-step explanation:
Answer:
A six foot person walks from the base of a broadcasting tower directly toward
A six-foot person walks from the base of a broadcasting tower directly toward the tip of the shadow cast by the tower. When the person is 131 feet from the tower and 3 feet from the tip of the shadow, the person's shadow starts to appear beyond the tower's shadow.
Step-by-step explanation:
Answers
The number of inches in 50.8 centimeters is 20 inches.
Given that, one inch is equivalent to 2.54 centimeters.
What is metric conversion?
Metric Conversion refers to the conversion of the given units to desired units for any quantity to be measured. The different unit of measurement resulted in the introduction of the "Metric System".
Number of inches in 50.8 centimeters = 50.8/2.54
=20 inches
Therefore, the number of inches in 50.8 centimeters is 20 inches.
To learn more about the metric conversion visit:
brainly.com/question/21244256.
#SPJ2
Answers
Answer:
b = 80°
Step-by-step explanation:
The inscribed angle measuring 100°, is supplementary to the angle opposite it in the inscribed quadrilateral.
Thus, the angle is = 80°
Therefore, b + 80° = 180° (angle on a straight line = 180°).
Thus, b = 180° - 80° = 100°.
The measure of b is 80°.
I need help with that ASAP please
Answers
Answer:
a<5
Step-by-step explanation:
a/5<1
5*a/5<1*5
a<5
1. In a certain county, the number of Charter Schools is eleven less than twice the number of Alternative Schools. There are 35 Charter Schools in the county. Which of the following equations would you use to find the number of Alternative Schools, a, in the county?
Answers
Alternative Schools 'a' in the county.