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natka813 [3]
3 years ago
12

A line crosses the coordinates (-3,5) and (4,-2). What is the slope of the line?

Mathematics
1 answer:
ICE Princess25 [194]3 years ago
8 0

Answer:

Slope = -1

Step-by-step explanation:

\frac{-2-5}{4-(-3)}=\frac{-7}{7} =-1

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Let the smallest of 4 consecutive odd numbers be 2 n + 1 , where n is an integer. Show, using algebra, that the sum of any 4 con
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Answer:

Expression is 8(n+2)

Step-by-step explanation:

smallest of 4 consecutive odd numbers =2n + 1

consecutive odd integers are found by adding 2 to the any given odd numbers

Thus, 2nd consecutive odd integers  = 2n + 1 + 2 = 2n + 3

3rd consecutive odd integers  = 2n + 3 + 2 = 2n + 5

2nd consecutive odd integers  = 2n + 5 + 2 = 2n + 7

Thus, 4 consecutive odd integers are

2n + 1 ,2n + 3,2n + 5,2n + 7

sum of these numbers are = 2n + 1 +2n + 3 + 2n + 5+2n + 7 = 8n+16

sum of these numbers are = 8(n+2)

Thus, we see that the sum of numbers are 8(n+2)

As, 8 is common for n+2, whatever is value of n, the number will be multiple of 8 .

thus expression is 8(n+2)

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3 years ago
One survey estimates that, on average, the retail value of a mid-sized car decreases by 8% annually. If the retail value of a ca
bagirrra123 [75]
Value in 1 year = V*(0.92)
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3 years ago
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Convert 200 centimeters into kilometers
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200 centimetes converted to kilometers = 0.002

5 0
3 years ago
The number of nails of a given length is normally distributed with a mean length of 5 in and a standard deviation of 0.03 find t
umka2103 [35]

Answer:

19 nails

Step-by-step explanation:

Let's first determine the z-score by using the formula:

z=\frac{x-\mu}{\sigma}

Where x=5.03, μ=5, σ=0.03 and so:

z=\frac{5.03-5}{0.03}=1


We can now use a z-score table to determine that 1.00 is synonymous with 0.8413 meaning 84.13%.  This means that 84.13% of the nails are less than or equal to 5.03 inches long.  Therefore, since we know 100% = 1 in decimals we can determine that the length greater than 5.03 inches is 1-0.8413=0.1587.  This means that 15.87% of the 120 nails are greater than 5.03 inches long.

Finally, we can determine how many nails are greater than 5.03 by determining what is 15.87% of 120 which is:

120 \times 0.1587 \approx 19

And so 19 out of the 120 nails are greater than 5.03 inches long.

5 0
3 years ago
I need an answer asap
eduard

Answer:   The answer is 120

Step-by-step explanation:  you add 50+70 and u will get 120

7 0
3 years ago
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