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2 years ago

Helpp which one pleasee

Mathematics

1 answer:

lawyer [7]2 years ago

6 0

Answer:

coefficient because they are not the same so they can not be constant because it is not the same in every week

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What is -2 1/3- 1 1/3

romanna [79]

Answer:

Step-by-step explanation:

$-2\dfrac{1}{3}-1\dfrac{1}{3}=-2\dfrac{1}{3}+\left(-1\dfrac{1}{3}\right)=-\left(2\dfrac{1}{3}+1\dfrac{1}{3}\right)\\\\=-\bigg[(2+1)+\left(\dfrac{1}{3}+\dfrac{1}{3}\right)\bigg]=-\left(3+\dfrac{1+1}{3}\right)\\\\=-3\dfrac{2}{3}$

4 0

2 years ago

Read 2 more answers

A sample of 64 was taken from a population, with the mean of the sample being 119 and the standard deviation of the sample being

Fofino [41]

We have the sample size, sample mean and the sample standard deviation. Since the population standard deviation is not know, we will use t-distribution to find the confidence interval.

The critical t value for 95% confidence interval and 63 degrees of freedom is 1.998.

The 95% confidence for the population mean will be:

$(119-1.998 *\frac{16}{ \sqrt{64} } ,119+1.998 *\frac{16}{ \sqrt{64} }) \\ \\ 
=(115.004, 122.996) \\ \\=(115,123)$

Thus, the 95% confidence interval for the population mean will be (115,123)

So, option A is the correct answer

6 0

2 years ago

How much cellular data does Brainly.com use?

luda_lava [24]

Well none if you use wifi silly goose

3 0

2 years ago

PLEASE HELPPP! Write the quotient as a mixed number. 32 divided by 5 = 6 R2

dmitriy555 [2]

Answer:

$6 \frac{2}{5}$

Step-by-step explanation:

6 is the whole number, while 2 is the numerator and 5 is the denominator.

4 0

3 years ago

Which expression represents -8x^2+54x+140 in factored form?

Elenna [48]

Answer:

D. (x+2)(-8x+70)

Step-by-step explanation:

-8x^2+54x+140

Factor out -2

-2(4x^2+27x+70)

Factor

-2(x+2)(4x-35)

Option D is the same answer if we multiply -2 in the second term

(x+2) (-8x+70)

7 0

2 years ago