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Ipatiy [6.2K]
2 years ago
11

The sum of 7+14+21 + 150 terms​

Mathematics
1 answer:
Genrish500 [490]2 years ago
5 0
192 I just calculated it
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Hi boys can you help me pls!!!!!!!
goblinko [34]

Answer: OPTION A.

Step-by-step explanation:

Given the following function:

h(x)=-\frac{1}{4}x^2+\frac{1}{2}x+\frac{1}{2}

You know that it represents the the height of the ball (in meters) when it is a distance "x" meters away from Rowan.

Since it is a Quadratic function its graph is parabola.

So, the maximum point of the graph modeling the height of the ball is the Vertex of the parabola.

You can find the x-coordinate of the Vertex with this formula:

x=\frac{-b}{2a}

In this case:

a=-\frac{1}{4}\\\\b=\frac{1}{2}

Then, substituting values, you get:

x=\frac{-\frac{1}{2}}{(2)(-\frac{1}{4}))}\\\\x=1

Finally, substitute the value of "x" into the function in order to get the y-coordinate of the Vertex:

h(1)=y=-\frac{1}{4}(1)^2+\frac{1}{2}(1)+\frac{1}{2}\\\\y=0.75

Therefore, you can conclude that:

<em> The maximum height of the ball is 0.75 of a meter, which occurs when it is approximately 1 meter away from Rowan.</em>

7 0
3 years ago
Rewrite as a simplified fraction 1.6 &lt;-- repeating=?
Norma-Jean [14]
1.6666...=1.\overline{6}=1.(6)\\\\x=1.6666...\ \ \ |multiply\ both\ sides\ by\ 10\\10x=16.6666...\\\\10x-x=16.6666...-1.6666...\\9x=15\ \ \ \ |divide\ both\ sides\ by\ 9\\\\x=\frac{15}{9}\\\\\boxed{x=1\frac{6}{9}}\\\\simplify\\\\x=1\frac{6:3}{9:3}=\boxed{1\frac{2}{3}}
6 0
3 years ago
For married couples living in a certain suburb, the probability that the husband willvote on a bond referendum is 0.21, the prob
jeyben [28]

Answer:

niglgapopfart

Step-by-step explanation:

12(5)6$78$???98

8 0
2 years ago
The perimeter of any polygon is the?
Wittaler [7]

Answer:

B

Step-by-step explanation:

perimeter is the sum of all sides. it's the distance around the figure.

7 0
3 years ago
The manufacturer of a certain brand of aluminum foil claims that the amount of foil on each roll follows a Normal distribution w
natali 33 [55]

Answer: 0.4207

Step-by-step explanation:

Let \overline{x} be the sample mean area.

Given: Population mean : \mu=250 sq. feet

Standard deviation: \sigma=2 sq. feet

Sample size : n= 10

The probability that the sample mean area is 249.6 \text{ ft}^2 or less if the manufacturer’s claim is true.

P(\overline{x}

Required probability = 0.4207

5 0
3 years ago
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