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sleet_krkn [62]
3 years ago
6

A construction crew needs to build a road that will be 20 miles long. The crew already completed a stretch that is 6.44 miles lo

ng and another that is 8.62 miles long. Round each distance to the nearest mile. About how much more road does the construction crew need to build?
A.
about 5 mi

B.
about 6 mi

C.
about 7 mi

D.
about 9 mi
Mathematics
2 answers:
Alex787 [66]3 years ago
7 0
The answer is A. 8.62 is about 9 and 6.44 is about 6 
erma4kov [3.2K]3 years ago
7 0
The answer is a about 5 miles
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IRINA_888 [86]

Answer:

m=\frac{5}{3}

Step-by-step explanation:

Given the following question:

Point A = (-2, -9) = (x1, y1)
Point B = (1, -4) = (x2, y2)

To find the slope of a line, we will need to use the formula for slope or rise over run.

m=\frac{y2-y1}{x2-x1}
m=\frac{-4--9}{1--2} =\frac{5}{3}
m=\frac{5}{3}

The slope of the given line is indeed "5/3."

Hope this helps.

7 0
1 year ago
If five numbers are selected at random from the set {1,2,3,...,20}, what is the probability that their minimum is larger than 5?
Zanzabum

Answer:

the probability that their minimum is larger than 5 is 0.2373

Step-by-step explanation:

For calculate the probability we need to make a división between the total ways to selected the 5 numbers and the ways to select the five numbers in which every number is larger than 5.

So the number of possibilities to select 5 numbers from 20 is:

<u>20                </u> * <u>      20         </u>*  <u>        20     </u> *<u>        20         </u>* <u>       20 </u>

First number  2nd number   3rd number  4th number   5th number

Taking into account that a number can be chosen more than once, and the order in which you select the numbers matters, for every position we have 20 options so, there are  20^{5} ways to select 5 numbers.

Then the number of possibilities in which their minimum number is larger than 5 is calculate as:

<u>15                </u> * <u>      15         </u>*  <u>           15     </u> *<u>        15          </u>* <u>       15 </u>

First number  2nd number   3rd number  4th number   5th number

This time for every option we can choose number from 6 to 20, so we have 15 numbers for every option and the total ways that satisfy the condition are  15^{5}

So the probability P can be calculate as:

P=\frac{15^{5} }{20^{5} } \\P=0.2373

Then the probability that their minimum is larger than 5 is 0.2373

7 0
3 years ago
a taxi rider must pay 15000 VND for 1km in the first 10km, when exceeding 10km, they will pay them 14000 VND for each subsequent
Flura [38]

Answer:

Số tien:S =150000+(x-10)14000

Step-by-step explanation:

4 0
2 years ago
<img src="https://tex.z-dn.net/?f=538%20%5Ctimes%204%20%5C%5C%20%20%5C%5C%20214%20%5Ctimes%208%20%5C%5C%20%20%5C%5C%203721%20%5C
Shalnov [3]

Answer:

Step-by-step explanation:

multiply (538)(4)=2152\\(214)(8)=1712\\(3721)(7)=26047\\(7956)(8)=63648

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3 years ago
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Vilka [71]

Answer:

3600!!!

Step-by-step explanation:

6000 divided by 5= 1200

1/5= 1200

1200 x 3= 3600

3 0
3 years ago
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