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2 years ago

Answer for -9k - 8k ???

Mathematics

2 answers:

Goryan [66]2 years ago

8 0

Answer:

-1k

Step-by-step explanation:

-9 - 8 = -1

Bas_tet [7]2 years ago

5 0

Answer:

Um if they are both negative then -17k and if the first one is negative and the second one isnt then its well its still -1k

Step-by-step explanation:

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Which of the following will NOT produce a triangle?

seraphim [82]

Answer:

c) side lengths 0f 5.5 ft, 11 ft, and 5.5 ft

Step-by-step explanation:

The two shorter side lengths added together must exceed the longer side length (and equal to does not work)

8 0

2 years ago

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The mean per capita income is 15,451 dollars per annum with a variance of 298,116. What is the probability that the sample mean

docker41 [41]

Answer: 0.5467

Step-by-step explanation:

Let X be the random variable that represents the income (in dollars) of a randomly selected person.

Given : $\mu=15451$

$\sigma^2=298116\\\\\Rightarrow\ \sigma=\sqrt{298116}=546$

Sample size : n=350

z-score : $\dfrac{x-\mu}{\dfrac{\sigma}{\sqrt{n}}}$

To find the probability that the sample mean would differ from the true mean by less than 22 dollars, the interval will be

$\mu-22,\ \mu+22\\\\=15,451 -22,\ 15,451 +22\\\\=15429,\ 15473$

For x=15429

$z=\dfrac{15429-15451}{\dfrac{546}{\sqrt{350}}}\approx-0.75$

For x=15473

$z=\dfrac{15473-15451}{\dfrac{546}{\sqrt{350}}}\approx0.75$

The required probability :-

$P(15429$

Hence, the required probability is 0.5467.

3 0

2 years ago

18.746+3.079 what is the reason<br>

Sav [38]

Answer:

21.825

Step-by-step explanation:

1 1 1

18.746

3.079

+____

21.825 hope this helps :)

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2 years ago

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Write the quadratic equation in vertex form.<br> y = x2 + 16x + 4

MrRa [10]

Answer:

x= y-4/18

y=18x+4

Step-by-step explanation:

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2 years ago

What is the scientific notation of 1260000

Sergeu [11.5K]

1.26X10^6
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2 years ago