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4 years ago

B) Given equation is, 5x² - 3x -4 =0

Mathematics

1 answer:

aleksklad [387]4 years ago

7 0

Answer : The First Answer is in the picture above and second question is incorrect ..

Step-by-step explanation:

Hope it works out !!

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Michael is running for president. The proportion of voters who favor Michael is 0.8. A random sample of 100 voters is taken.

Anton [14]

Answer:

Michael is running for president. The proportion of voters who favor him is 0.3. A simple random sample of 100 voters is taken.

What is the expected value :: n*p = 100*0.8 = 80

standard deviation:: sqrt(n*p*q) = sqrt(80*0.2) = 16

where q is proportion of voters who do not favor Michael. (q=0.2)

and shape of the sampling distribution is binomial distribution which is approximately a bell shaped.

-------------------------

what is the probability that the number of voters in the sample who will not favor Michael will be more than 16

P(X < 16.0) = P((x - 20) / 4.0) < (16.0 - 20) / 4.0) = P(Z < -1.00) = .1587

P(X > 16.0) = 1 - 0.1587 = 0.8413

5 0

4 years ago

Help? I’m stuck anyone ?

ivolga24 [154]

Its B.. Hope that helps :)

7 0

3 years ago

Read 2 more answers

What expression is equal to log3(9x)

Len [333]

Answer:

y=log3(9x)

3^y = 9x

Step-by-step explanation:

7 0

3 years ago

PLEASE!! (GIVING BRAINLIEST)

snow_lady [41]

Answer:

Step-by-step explanation:

because the difference between each new number y(-2, -4, -6, -8) x(3, 6, 9, 12) is the same. For the y column it decreases by 2 each time and for the x column it increases by 3 each time. Therefore, yes, -2/3 is the correct answer

5 0

3 years ago

Read 2 more answers

50 POINTS!!!

Goryan [66]

9514 1404 393

Answer:

f(x) = x
g(x) = -2x+1
f(x) -(-g(x)) = -x+1
f(x) +g(x) = -x+1
f(x)-(-g(x)) = (f+g)(x) is true for all functions f and g, linear or not

Step-by-step explanation:

We can define a couple of linear functions as ...

f(x) = x

g(x) = -2x+1

Then the reflected function -g(x) is ...

-g(x) = -(-2x +1) = 2x -1

And the difference from f(x) is ...

f(x) -(-g(x)) = x -(2x -1) = -x +1 . . . . f(x) -(-g(x))

We want to compare that to the sum of the functions:

f(x) +g(x) = x +(-2x +1) = -x +1 . . . . f(x) +g(x)

The two versions of the function expression have the same value.

These results are a property of addition, so do not depend on the nature of f(x) or g(x). They will hold for every function.

3 0

3 years ago