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Art [367]
3 years ago
11

X2-4x=177 (the 2 is an exponent)

Mathematics
1 answer:
grandymaker [24]3 years ago
3 0
         x² - 4x = 177
x² - 4x - 177 = 0
x = <u>-(-4) +/- √((-4)² - 4(1)(-177))</u>
                         2(1)
x = <u>4 +/- √(16 + 708)</u>
                  2
x = <u>4 +/- √(724)
</u>              2<u>
</u>x = <u>4 +/- 2√(181)
</u>               2<u>
</u>x = 2 <u>+</u> √(181)
x = 2 + √(181)    x = 2 - √(181)
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Answer:

0.053

Step-by-step explanation:

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I'm geometric distribution problem,

E(X) = 1/p

Where;

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Thus;

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p = 1/12.5

p = 0.08

Now, to find the probability that the sixth person tested is the first one with high blood pressure, we will use the probability formula in geometric distribution which is;

P(X = k) = qⁿ•p

q = 1 - p

q = 1 - 0.08

q = 0.92

Thus;probability that the sixth person tested is the first one with high blood pressure will be expressed as;

P(X > 5) = (0.92^(5)) × 0.08

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3 years ago
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tankabanditka [31]

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4 years ago
If f(x) is a third degree polynomial function and g(x) = f(–2x), which of the following is NOT true?
valina [46]

Answer:

f(x) and g(x) have the same x-intercepts (is <em>not true</em>)

Step-by-step explanation:

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_____

<em>Comment on the question/answer</em>

f(x) = x^3 is a 3rd degree polynomial. When transformed to g(x) = -8x^2, its only x-intercept (x=0) remains the same. The answer above will not apply in any instance where the only x-intercept is on the line of reflection. (The question is flawed in that it does not make any exception for such functions.)

8 0
4 years ago
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Eva8 [605]

Answer:

Slope is 5/2

Step-by-step explanation:

5x-2y=10

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-2y=-5x+10

Then you divide -2 on both sides

y=5/2x-5

Which will result 5/2 as the slope

6 0
4 years ago
Read 2 more answers
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mote1985 [20]

Answer:

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Step-by-step explanation:

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5 0
3 years ago
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