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Angelina_Jolie [31]
3 years ago
6

1. Find the distance between each pair of points. Round your answer to

Mathematics
1 answer:
zlopas [31]3 years ago
7 0

Step-by-step explanation:

\sqrt{(3 - ( - 4))^{2}  + ( - 7 - 6)^{2} }  \\  =  \sqrt{(3 + 4)^{2}  +  {( - 13)}^{2} }  \\  =   \sqrt{ 49 + 169}  \\   = \sqrt{218} \\  = 14.7648

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Factor completely and find the roots of the following . X^2-6x+8=0
LiRa [457]

Answer:

x =2, x = 4

Step-by-step explanation:

x^2 - 6x + 8 = 0

(x - 2)(x - 4) = 0

x - 2 = 0; x = 2

x - 4 = 0; x = 4

5 0
2 years ago
In calm water, the motorboat of Jana is moving at the speed of 16.5km/h. On a river, because of the current, the boat moves fast
ki77a [65]

Answer: 707 km/h

Step-by-step explanation:

let c = speed of current

16.5 + c = speed of sailboat downstream

16.5 - c = speed of sailboat upstream

distance = travel time * speed

﹋﹋﹋﹋﹋﹋﹋﹋﹋﹋﹋﹋﹋﹋﹋﹋﹋﹋﹋

2(16.5 + c) = 5(16.5 - c)

33 + 2c = 82.5 - 5c

7c = 49.5

c = 7.07 km/h

4 0
1 year ago
when adding two rational numbers tell what the sign of the sum will be if one rational number is positive and one is negative
Mekhanik [1.2K]

Answer:

True

When you add two negative numbers the sum is always negative ex.

When you add two numbers with different signs get the difference and get the sign by the larger absolute value ex.

Step-by-step explanation:

8 0
2 years ago
The average score of all golfers for a particular course has a mean of 65 and a standard deviation of 4.5 . Suppose 81 golfers p
Natali5045456 [20]

Answer:

Answer:

The probability that the average score of the 49 golfers exceeded 62 is 0.3897

Step-by-step explanation:

6 0
3 years ago
Use the number line to add the fractions.<br><br> help plz look at picture
mr_godi [17]

Answer:

\frac{1}{6}

Step-by-step explanation:

- \frac{1}{2}  + \frac{2}{3}  =   - \frac{3}{6}  + \frac{4}{6} \\\\ - \frac{3}{6}  + \frac{4}{6}  = \frac{1}{6}

5 0
3 years ago
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