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AleksandrR [38]
3 years ago
8

Can someone please help me with this 4(x-10)-6(x-4)

Mathematics
2 answers:
bagirrra123 [75]3 years ago
7 0

Answer:

16

Step-by-step explanation:

4 x 10 = 40

6 x 4 = 24

40 - 24 = 16

Andru [333]3 years ago
7 0
Your answer is 2(-x-8)

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Does (3,8) make the Equation y=x-5 true?
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no

Step-by-step explanation:

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If a coin is flipped 70 times how many times should it land with tails side face up
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Answer: 35

Explanation:

P(Tail) = 1/2

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Which numbers below represents a repeating decimal?
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Answer:

3/9

Step-by-step explanation:

3/9 = 0.33333333

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is a reeating decimal

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3 years ago
a florist is told that 40% of the 350 flowers ordered must be red roses how many roses must be in the order
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7 0
2 years ago
A simple random sample with n = 58 provided a sample mean of 24.5 and a sample standard deviation of 4.4. (Round your answers to
nasty-shy [4]

Answer: (23.53, 25.47)

Step-by-step explanation:

The confidence interval for population mean(when population standard deviation is unknown) is given by :-

\overline{x} \pm\ t^*\dfrac{s}{\sqrt{n}}

, where \overline{x} = sample mean

n = sample size.

s = sample standard deviation.

t* = Critical value.

Given : \overline{x}=24.5

s= 4.4

Confidence level = 90% =0.090

Significance level = \alpha=1-0.90=0.10

Sample size : n= 58

Degree of freedom : df= n-1= 57

Using t-distribution table , the critical value :

t_{\alpha/2,\ df}= t_{0.05,\ 57}=1.6720

Then, the confidence interval will be :-

24.5 \pm\ (1.6720)\dfrac{4.4}{\sqrt{58}}

24.5 \pm\ (1.6720)\dfrac{4.4}{7.61577310586}

24.5 \pm\ 0.965995165263\approx24.5\pm0.97\\\\=(24.5-0.97,\ 24.5+0.97)\\\\=(23.53,\ 25.47)

Hence, a 90% confidence interval for the population mean = (23.53, 25.47)

6 0
3 years ago
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