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Inessa [10]
3 years ago
12

Solve for x. plz help

Mathematics
2 answers:
LiRa [457]3 years ago
7 0
x^2-2x+10=0\\\\ (x^2-2x+1)-1+10=0\\\\(x-1)^2+9=0\\\\ (x-1)^2=-9

Answer D
Gwar [14]3 years ago
7 0
Hello :
x²- 2x+10 = 0
(x²-2x+1) -1 +10
(x-1)² +9 = 0
(x-1)² = -9 ... .(no real solution because : (x-1)²  <span>≥ 0 )</span>

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6 0
3 years ago
Given real numbers a,b &gt; 1.
irina [24]

Answer:

FALSE

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Recall that a function f(x) is of exponential order c, if there exists a constant M such that and a real r such that

|f(x)|\leq Me^{cx}\;(x\geq r)

Now, take a = 2.5 and b = 2

The functions

f(x)=(2.5)^x\;g(x)=2^x

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8 0
3 years ago
What is the margin of error for a sample statistic for a population with a standard deviation of 7.75?
3241004551 [841]

Answer:

Margin of Error  = 1.96 \times 7.75 = 15.19

Step-by-step explanation:

i) Margin of Error of a population with a standard deviation of 7.75?

ii) Let us assume a two tailed test with a 95% confidence interval

iii) Z_{\frac{\alpha }{2} }  = Z_{\frac{\ 0.05 }{2} } = Z_{0.025} = 1.96

iv) therefore Margin of Error  = 1.96 \times 7.75 = 15.19

6 0
3 years ago
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