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3 years ago

Help i will give u 5 star and a brainlist

Mathematics

2 answers:

Effectus [21]3 years ago

4 0

Answer:

623, 529

Step-by-step explanation:

Let's rewrite the problem: 6.8% of what number is 42,400?

Represent the problem as an equation.

0.068 * n = 42,400 (6.8% = 0.068)

0.068/0.068 = 0

42,400/0.068 = 623,529.4117647059

Round this value to the nearest whole number to receive: 623, 529

levacccp [35]3 years ago

4 0

Answer:

617647

Step-by-step explanation:

6.8% = 42 400

Divide 42 400 by 6.8 to get 1%

1% = 6176.47058823529....

Multiply this by 100 to get 100%

100% = 617647.0588

We can check it by doing 617647.0588 * 6.8% = 42 400

Nearest whole number= 617647

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rusak2 [61]

Answer:

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Step-by-step explanation:

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3 years ago

If (k,6k) and (3k,10k) are two points on the graph of a line and K is not equal to 0, what is the slope of the line?

Nataliya [291]

Answer:

Step-by-step explanation:

slope = y2-y1/x2-x1

Given the coordinates (k,6k) and (3k,10k)

x1 = k

y1 = 6k

x2 = 3k

y2 = 10k

Substitute

slope = 10k-6k/3k-k

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Hence the slope of the line is 2

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3 years ago

Assume the readings on thermometers are normally distributed with a mean of 0 degrees C and a standard deviation of 1.00 degrees

lozanna [386]

Answer: 0.0035

Step-by-step explanation:

Given : The readings on thermometers are normally distributed with a mean of 0 degrees C and a standard deviation of 1.00 degrees C.

i.e. $\mu=0$ and $\sigma= 1$

Let x denotes the readings on thermometers.

Then, the probability that a randomly selected thermometer reads greater than 2.17 will be :_

$P(X>2.7)=1-P(\xleq2.7)\\\\=1-P(\dfrac{x-\mu}{\sigma}\leq\dfrac{2.7-0}{1})\\\\=1-P(z\leq2.7)\ \ [\because\ z=\dfrac{x-\mu}{\sigma}]\\\\=1-0.9965\ \ [\text{By z-table}]\ \\\\=0.0035$