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Lena [83]
3 years ago
11

2. Answer the following questions.

Mathematics
1 answer:
Anettt [7]3 years ago
5 0

Coordinates will show the vertices of the triangle, and using the vertices, calculate length of the sides of the triangle.With the side length you can now calculate the angles of the triangle.

Step-by-step explanation:

The coordinates of the triangle can be plotted on a graph tool to give you the exact shape.Then using the coordinates that represent vertices for the triangle, apply the distance formula;  d=\sqrt{(y_2-y_1)^2 + (x_2-x_1)^2}

This gives the length of the sides of the triangle.With the side length values, you can apply the cosine rule : c²=a²+b²-2ab cos c to find the angles in the triangle.

Lean More

Triangle relationships : brainly.com/question/7722758

Keyword : coordinates, geometry

#LearnwithBrainly

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Suppose ACT Reading scores are normally distributed with a mean of 21.4 21.4 and a standard deviation of 5.9 5.9 . A university
Nutka1998 [239]

Answer:

29.2

Step-by-step explanation:

Mean = 21.4

Standard deviation = 5.9%

The minimum score required for the scholarship which is the scores of the top 9% is calculated using the Z - Score Formula.

The Z- score formula is given as:

z = x - μ /σ

Z score ( z) is determined by checking the z score percentile of the normal distribution

In the question we are told that it is the students who scores are in the top 9%

The top 9% is determined by finding the z score of the 91st percentile on the normal distribution

z score of the 91st percentile = 1.341

Using the formula

z = x - μ /σ

Where

z = z score of the 91st percentile = 1.341

μ = mean = 21.4

σ = Standard deviation = 5.9

1.341= x - 21.4 / 5.9

Cross multiply

1.341 × 5.9 = x - 21.4

7.7526 = x -21.4

x = 7.7526 + 21.4

x = 29.1526

The 91st percentile is at the score of 29.1526.

We were asked in the question to round up to the nearest tenth.

Approximately, = 29.2

Step-by-step explanation:

7 0
3 years ago
لان
Mandarinka [93]

Answer:

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3 years ago
Given f(x)=-x+2f(x)=−x+2, find f(-1)f(−1).
Anuta_ua [19.1K]

Answer:

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5 0
4 years ago
Find the measure of JK that makes Triangle JLK- triangle PLM
tensa zangetsu [6.8K]
Just take both sides multiply by 2 then divide 3
8 0
3 years ago
If u walked 5 miles down a trail and then walked 2 1/4 miles back, how many miles away are you from your starting point?
Mandarinka [93]

Answer:

2 3/4

Step-by-step explanation:

1. Don't look at the fraction, calculate the number

2. 5-2= 3

3. add in the fraction, 3-1/4=2 3/4

4. check, does 2 3/4 add 2 1/4 equals to 5?

4 0
3 years ago
Read 2 more answers
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