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Anettt [7]
2 years ago
6

latrell wants to keep his test average in his class at 85 or higher. so far, he has earned score of 85, 76, 94 and 81 on his tes

ts. whqt score must he get on his test to keep his average at 85+or higher
Mathematics
1 answer:
Lena [83]2 years ago
7 0

Answer:

89

Step-by-step explanation:

Use the mean formula, mean = sum of elements / number of elements.

He wants to keep his average at 85 or higher, so plug in 85 as the mean. Let x represent the score he has to get, and solve for x:

mean = sum of elements / number of elements.

85 = (85 + 76 + 94 + 81 + x) / 5

85 = (336 + x) / 5

425 = 336 + x

89 = x

So, he has to get a 89.

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Find all solutions in the interval [0,2π) of the equation.
Sauron [17]

Step-by-step explanation:

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3 years ago
HELP!! Select the values for the domain and range of the functions graphed below.
Goryan [66]

Answer:

Graph 1

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Range = -9 =< f(x) =< 9

Graph 2

Domain = -1 =< x =< 5

Range = -1 =< f(x) =< 2

Explaination:

Domain means the inputed x values on the x-axis, so to make things simpler and to not write every individual x values. We write it with <, >, and =<. (you can see it as the 'width' of a graph).

Range means the output y values on the y-axis. It's like the 'height' of a graph. And also, to make things simpler and to not write every individual y values. We write it with <, >, and =< with f(x) too because f(x) = y.

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2 years ago
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Mrac [35]

Answer: find the solution in the explanation

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Let's use resolution of forces by resolving into x - component and y- component.

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Ø = 1

Does the angle formed approximate 15 degrees ? NO

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