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3 years ago

What is the simplified value of the expression below?

Mathematics

1 answer:

Marta_Voda [28]3 years ago

5 0

Answer:

A. 18.25

Step-by-step explanation:

After you do the multiplications, the problem is

... (56 +90)/8 = 146/8 = 18.25

_____

The division bar is a grouping symbol, equivalent to parentheses around both numerator and denominator. You must evaluate the numerator before you can divide by the denominator, which also must be evaluated before that division.

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What is the pattern of 39,40,36,37,33,34?

Vilka [71]

$39 + 1 = 40 - 4 = 36 + 1 = 37 - 4 = 33 + 1 = 34 - 4 = 30 \:$
this is how it goes

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3 years ago

Which expression are equivalent to the one below? check all that apply. 3^x

pickupchik [31]

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3 years ago

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Vadim26 [7]

Answer: D. 32cm

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4 years ago

HELP!!!!!! ILL GIVE BRAINLEST

Kobotan [32]

Answer:

Its 95/100

Step-by-step explanation:

7/10 can be changed into 70/100 then just add 25/100 and you get 95/100

4 0

3 years ago

Read 2 more answers

If 95% and 98% confidence intervals were calculated from the same sample data in order to estimate the true cost of an appliance

damaskus [11]

Answer:

D) The z-statistics would be different.

Step-by-step explanation:

Confidence Interval can be calculated using M±ME where

M is the sample mean
ME is the margin of error from the mean

An margin of error (ME) from the mean can be calculated using the formula

ME= $\frac{z*s}{\sqrt{N} }$ where

z is the corresponding z-statistic in the given confidence level

s is the population standard deviation

N is the sample size

If 95% and 98% confidence intervals were calculated from the same sample data, then M, s and N are same.

$\frac{s}{\sqrt{N} }$ is called standard error. Since s and N are same the standard errors would also be same.

But, two tailed z-statistic for 95% confidence level is ≈1.96 where for 98% it is ≈2.33

8 0

4 years ago