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Dafna11 [192]
1 year 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]1 year ago
6 0

Answer:

.40

Step-by-step explanation:

i took the test

Valentin [98]1 year ago
3 0

Answer:

50 chance

Step-by-step explanation:

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Mick paid $2.94 in sales tax on an item that cost $42.00 before tax. At that rate, how much would he paying sales tax before an
sergiy2304 [10]
To answer this question you would have two steps involved. The first step would be to find the percentage of $42 that gives us $2.94. Set up an equation 42x=2.94. Divide both sides by 42 to get the decimal 0.07. This equal 7%. Take this percentage multiplied by the $58. You need to change the 7% into 0.07 to be able to calculate it. 0.07 x 58 = $4.06 sales tax.
5 0
2 years ago
The number 31 is increased to 44. What is the percentage by which the number was increased, to the nearest tenth of a percent?
Sophie [7]

Answer:

41.9 %

Step-by-step explanation:

when you look at the to numbers you will see that the two has a 41.9 % difference.

3 0
1 year ago
The vertex of this parabola is at (-2,-3). When the x-value is -1, the y-value is -5. What is the coefficient of the squared exp
elena55 [62]

Answer:

Option C is correct

Step-by-step explanation:

Given: vertex of this parabola is at (-2,-3)

To find: coefficient of the squared expression in the parabola’s equation if the x-value is -1, the y-value is -5

Solution:

The equation of parabola is of the form y=a(x-h)^2+k

Here, a is the coefficient of the squared expression in the parabola’s equation.

Put (h,k)=(-2,-3)\,,\,(x,y)=(-1,-5)

-5=a(-1+2)^2-3\\-5+3=a(1)^2\\-2=a\\a=-2

So, the coefficient of the squared expression in the parabola’s equation is -2

6 0
1 year ago
Write three powers with whole number bases that have values greater than 120 and less than 130
vovangra [49]
<span>Three powers with whole number bases that have values greater than 120 and less than 130 are:
</span>11² = 11 x 11 = 121 
<span>5³ = 5 x 5 x 5 =125 </span>
<span>2⁷ = 2 x 2 x 2 x 2 x 2 x 2 x 2 = 128 
</span>
7 0
2 years ago
Sue scored a total of 35 points in two games. She scored 6 times as many points in the second game as in the first. How many mor
Marianna [84]
35=(6*x)+x
35=6x=x
35=7x   / divide each side by 7
5=x

x= the first game

5*6= 30

30 points in the second game


Good Luck!
3 0
2 years ago
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