3 years ago

Someone explain this equation plz

Mathematics

1 answer:

Kay [80]3 years ago

5 0

Write down a common denominator for 7/8 and 9/10. Then compare the fractions when they have the common denominator.

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Write an equation in slope-intercept form for the line with slope 8 and y-intercept -8.

Fofino [41]

Answer:

y = 8x - 8

Step-by-step explanation:

y = mx + b is slope-intercept form

m - slope

b - y-intercept

so if you plug in 8 for m and -8 for b you'll get

y = 8(m)x - 8(b)

Hope this helps!!

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3 years ago

Luke bought a pair of jeans originally priced at $69.00. The jeans have been marked down 25%, and a sign posted on the rack wher

ElenaW [278]

Answer: C. 69(0.75)(.0.90)

Step-by-step explanation:

In order to find a discounted price you subtract the discount percentage as a decimal from 1 and multiply the outcome to the original price. For this case, 1-0.25=0.75 and 1-0.1=0.90. So your equation will be 69(0.75)(0.90)

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3 years ago

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Suppose a random sample of n measurements is selected from a binomial population with probability of success p = .39. Given n =

Oksi-84 [34.3K]

Answer:

The answer is below

Step-by-step explanation:

a) Given that the number of sample (n) = 300, therefore since n > 30, the distribution of the sample means is going to be normally distributed.

b) The mean of the distribution of sample means (also known as the Expected value of M) is equal to the population mean μ.

$\mu_x=\mu=np=300*0.39=117$

c) The standard deviation of the distribution of sample means is called the Standard Error of M, it is given by:

$\sigma_x=\sqrt{np(1-p)} =\sqrt{300*0.39(1-0.39)} =8.44$

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3 years ago

. The price of a pair of jeans was reduced from $60 to $48. What was the percent of decrease?

Neko [114]

I Believe it is 80% but I am not sure

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3 years ago

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-n+(-3)+3n+5<br><br> Combing like terms :

Karolina [17]

Answer: 2n + 2 should be your answer

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2 years ago