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Alex17521 [72]
3 years ago
14

What is the right answer for this question? Select all that apply

Mathematics
1 answer:
Klio2033 [76]3 years ago
8 0

Answer:

It must be a right triangle.

It also must be bigger than the original triangle since we are multiplying it by something greater than 1.

We do not know if it is an isosceles triangle because the info isn't given, so it can't be that option.

It is definitely not smaller than the original.

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math problem Just before a referendum on a school budget, a local newspaper polls 400 voters in an attempt to predict whether th
Readme [11.4K]

Answer:

The conditions necessary for the analysis are met.

The probability the newspaper’s sample will lead them to predict defeat is 0.7881

Step-by-step explanation:

We are given;

population proportion; μ = 52% = 0.52

Sample size;n = 400

The conditions are;

10% conditon: sample size is less than 10% of the population size

Success or failure condition; np = 400 x 0.52 = 208 and n(1 - p) = 400(1 - 0.52) = 192.

Both values are greater than 10

Randomization condition; we assume that the voters were randomly selected.

So the conditions are met.

Now, the standard deviation is gotten from;

σ = √((p(1 - p)/n)

where;

p is the population proportion

n is the sample size

σ is standard deviation

Thus;

σ = √((0.52(1 - 0.52)/400)

σ = √((0.52(0.48)/400)

σ = 0.025

Now to find the z-value, we'll use;

P(p^ > 0.5) = P(z > (x - μ)/σ)

Thus;

P(p^ > 0.5) = P(z > (0.5 - 0.52)/0.025)

This gives;

P(p^ > 0.5) = P(z > - 0.8)

This gives;

P(p^ > 0.5) = 1 - P(z < -0.8)

From the table attached we have a z value of 0.21186

Thus;

P(p^ > 0.5) = 1 - 0.21186 = 0.7881

Thus, the probability the newspaper’s sample will lead them to predict defeat is 0.7871

8 0
3 years ago
Read 2 more answers
Place labels on the coordinate plane below.
Nuetrik [128]

Answer:

the x-axis is the middle horizontal line

the y-axis in the middle vertical line

the origin is (0,0) or where the x and y-axis cross

in the upper left quadrant the x-axis is negative and the y-axis is positive.

in the upper right quadrant the x-axis is positive and so is the y.

in the lower left quadrant both the x and y-axis is negative.

in the lower right quadrant the x-axis is positive and the y-axis is negative.

8 0
3 years ago
Read 2 more answers
Given f(x) = 1/3(4-x),What is the value of f(16)?
elena55 [62]

Answer:

-1/4

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

16f=−4

Step 2: Divide both sides by 16.

3 0
3 years ago
Which algebraic expression matches this scenario?
Vesna [10]
B

If he can type 1/3 as many words as her that would be 1/3j which is the same as j/3.
7 0
3 years ago
How many ordered pairs of positive integers satisfy xY=32?
IRINA_888 [86]

Answer:


Step-by-step explanation:

xy = 32

x ; y is the divisor of 32

but : 32 =  2^5

6  ordered pairs of positive integers satisfy xY=32

(1;32) , (2;16) , (4; 8),(32; 1) , (16;2) , (8;4) .

4 0
3 years ago
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