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Dafna11 [192]
3 years ago
11

A poll shows that 60% of students enjoy mathematics. A random sample of 25 students showed that 80% of them enjoy mathematics. A

number generator was used to simulate 25 samples from a population in which 60% of students enjoy mathematics. The results are shown in the dot plot. What is the chance of getting a sample proportion of 80% or greater?
Mathematics
2 answers:
Allisa [31]3 years ago
6 0

Answer:

.40

Step-by-step explanation:

i took the test

Valentin [98]3 years ago
3 0

Answer:

50 chance

Step-by-step explanation:

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Write a rule for how to compare two quantities so that the second quantity has a value of 1 without using a diagram.
mars1129 [50]

Suppose two quantities = x, y

And you need to y as a unity.

So, you have to divide both the numbers by y, and you will get your answer...easily

5 0
3 years ago
For every 1 litre of water used to make a medicine, 199ml of sucrose and 271ml of saline solution are used. Express the amount o
sashaice [31]

Answer:

Step-by-step explanation:

water = 1 litre = 1000 ml

water : sucrose : saline = 1000 : 199 : 271

4 0
4 years ago
(4.7) and (6,10) find slope​
hichkok12 [17]

Answer: 3/2

<u>Use the slope formula</u>

y_{2}-y_{1}/x_{2}-x_{1}

10-7/6-4

=3/2

<u>Note</u>

(x_{1},y_{1} )=(4,7)\\(x_{2},y_{2} )=(6,10)

5 0
3 years ago
Read 2 more answers
Sam's vegetable garden is triangle. His plan shows that the plot is a right-angled triangle. Sam measures the sides of his veget
algol [13]

Answer:

The answer to your question is given below

Step-by-step explanation:

Let 'a' and 'b' be the length of the first two sides of the triangle and let 'c' be the longest length of the triangle.

The following data were obtained from the question:

Length of a = 17 m

Length of b = 144 m

Length of c = 145

For the triangle to be a right-angled triangle, then it must certify the pythagoras theory which states that the square of the two sides in a right-angled triangle is equal to the square of the longest side.

Thus, we can prove that the triangle is a right-angled triangle as illustrated below:

a² + b² = c²

Length of a = 17 m

Length of b = 144 m

Length of c = 145

17² + 144² = 145²

289 + 20736 = 21025

21025 = 21025

From the above illustration, we can see clearly that the square of two sides of the triangle is equal to the square of the longest side. Therefore, the triangle is a right-angled triangle.

8 0
3 years ago
dale has a square garden. He adds a 2-foot-wide walkway around his garden. If the total area of the walkway and garden is 196 sq
dem82 [27]
Let the side of the garden alone (without walkway) be x.  
Then the area of the garden alone is x^2.  
The walkway is made up as follows:

1) four rectangles of width 2 feet and length x, and 
 2) four squares, each of area 2^2 square feet.


The total walkway area is thus x^2 + 4(2^2) + 4(x*2).  

We want to find the dimensions of the garden.  To do this, we need to find the value of x.

Let's sum up the garden dimensions and the walkway dimensions:

x^2 + 4(2^2) + 4(x*2) = 196 sq ft

x^2 + 16 + 8x = 196 sq ft

x^2 + 8x - 180 = 0

(x-10(x+18) = 0

x=10 or x=-18.  We must discard x=-18, since the side length can't be negative.  We are left with x = 10 feet.

The garden dimensions are (10 feet)^2, or 100 square feet.


4 0
4 years ago
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