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svlad2 [7]
3 years ago
13

I'm wondering: Is there a symbol for exponential things like 1^2^3^4^5^6...? If so, what is it?

Mathematics
1 answer:
Yuri [45]3 years ago
3 0

Answer:

That sign means raise to power e.g 5^2.

5 in 2 places which is 25.

Also meaning 5× 2= 25

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1. Find the 90% Cl for the population mean if sample
Elden [556K]

Answer:

The answer is below

Step-by-step explanation:

1)

mean (μ) = 12, SD(σ) = 2.3, sample size (n) = 65

Given that the confidence level (c) = 90% = 0.9

α = 1 - c = 0.1

α/2 = 0.05

The z score of α/2 is the same as the z score of 0.45 (0.5 - 0.05) which is equal to 1.65

The margin of error (E) is given as:

E=Z_{\frac{\alpha}{2} }*\frac{\sigma}{\sqrt{n} } =1.65*\frac{2.3}{\sqrt{65} } =0.47

The confidence interval = μ ± E = 12 ± 0.47 = (11.53, 12.47)

2)

mean (μ) = 23, SD(σ) = 12, sample size (n) = 45

Given that the confidence level (c) = 88% = 0.88

α = 1 - c = 0.12

α/2 = 0.06

The z score of α/2 is the same as the z score of 0.44 (0.5 - 0.06) which is equal to 1.56

The margin of error (E) is given as:

E=Z_{\frac{\alpha}{2} }*\frac{\sigma}{\sqrt{n} } =1.56*\frac{12}{\sqrt{45} } =2.8

The confidence interval = μ ± E = 23 ± 2.8 = (22.2, 25.8)

8 0
3 years ago
What is the value of m in the equation 1/2 m - 3/4n=16 when n=8
zhuklara [117]
1/2m - 6= 16
1/2m=22
m= 44
6 0
2 years ago
Answer plzzz first right answer gets brainlyiest answe okay I know I spelled it wrong
yan [13]
9.   she spends 1 hour total  and 1/2 hour on spanish. So she has another 1/2  on another subject ( as she spends equal time on each subject)

So number of subjects = 1 / 1/2 = 1 * 2 = 2


8 0
3 years ago
Ill give you alot of points for this
rusak2 [61]

Answer:

ok

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Complete the square 4y^2+x+8y+1=0
sammy [17]

Answer: Simple and best practice solution for 4y^2+8y+1=0 equation. ... Begin completing the square. ... Square it (1) and add it to both sides.

Step-by-step explanation: Complete the square for x2+2x x 2 + 2 x.

4 0
2 years ago
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