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3 years ago

Please help me with these two problems!!

Mathematics

1 answer:

iren [92.7K]3 years ago

3 0

what exactly am i supposed to do with them?

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Use a normal approximation to find the probability of the indicated number of voters. In this case assume that 150 eligible vote

alexdok [17]

The number of people who voted follows a binomial distribution with probability of having voted $p=0.22$ and $n=150$ subjects, which means the approximating normal distribution should have mean $np=33$ and standard deviation $\sqrt{np(1-p)}\approx5.07$ .

With the continuity correction, you have

$\mathbb P(X$

8 0

3 years ago

Some help please? Which polynomial represents the difference below?

Helga [31]

So the right answer is of option D.

Look at the attached picture⤴

Hope it will help u...

4 0

3 years ago

Read 2 more answers

2x 2 (9x 2 −16)

xz_007 [3.2K]

Is the equation2x2(9x+2-16) if so you would do -16+2 first which is -14

Then multiply 2x2 equals 4

4(9x-14)

Multiply the 4 to 9x and -14

You get 36x-56

7 0

3 years ago

Find the midpoint of the line segment whose endpoints are (2.6,5.1) and (3,4.7).

svp [43]

Answer:

Mid point is: (2.8;4.9)

Step-by-step explanation:

To find midpoint of a line segment we can use the general equation:

$Mid=\frac{x_1+x_2}{2} ;\frac{y_1+y_2}{2}$

Where the point of the line are: (x₁;y₁) and (x₂;y₂).

In the problem, x₁ = 2.6, y₁ = 5.1 and x₂ = 3 and y₂ = 4.7. Replacing in the equation:

$Mid=\frac{2.6+3}{2} ;\frac{5.1+4.7}{2}$

<h3>Mid point is: (2.8;4.9)</h3>

7 0

4 years ago

Which expression is equivalent to the given expression

MA_775_DIABLO [31]

Answer:

i think the answer is A. 2x^3y^2

7 0

2 years ago