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SpyIntel [72]
4 years ago
15

Jason plotted the points (4,4) and (-4,-4) on a coordinate plane. He says that the distance between the two points is 8 units be

cause l4l + l-4l =8. What mistake is Jason making?
Mathematics
1 answer:
Nataly_w [17]4 years ago
8 0
The distance between two points is calculated through the equation,
                                 d = √(x₂ - x₁)² + (y₂ - y₁)²
Substituting the known values from the given above,
                                d = √(4 - -4)² + (4 - -4)²
                                  d = 8√2 = 11.31
The distance between the points is approximately equal to 11.31. The value that Jason presented is not the real distance because it does not account for the other set of coordinates. 
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Please help i am very confused
Step2247 [10]

Answer:

\sqrt{80}

80 is the number in the square root

Step-by-step explanation:

d = \sqrt{(x_{2}-x_{1}  )^{2} +(y_{2}-y_{1}  )^{2} } \\d = \sqrt{(4-(-4)  )^{2} +(5- 1 )^{2} }\\d = \sqrt{(4+4  )^{2} +4^{2}\\d = \sqrt{8^{2} +4^{2} }\\d=\sqrt{64 +16}\\d=\sqrt{80}

4 0
3 years ago
a skier is trying to decide whether or not to buy a season ski pass. A daily pass costs $67. A season ski pass costs $350. The s
weqwewe [10]
The equation for the season pass would look like:
y=25x+350
Daliy pass:
y=67x+25x or y=92x
x is the amount of days and y is the total cost.
92x=25x+350 This equation will be how many days the cost will be equal
67x=350
x=5.223
The skier would have to go up 6 days to start saving from the season pass
4 0
3 years ago
What is the value of x in the solution to this system of equation 3x-5y=22: y=-5x+32
galina1969 [7]

Answer:

x= 33/7 or 4.7

Step-by-step explanation:

3 0
3 years ago
For what real number k does the product (25 + ki)(3+2i) equal a real number?
pochemuha
Hello : 
<span>(25 + ki)(3+2i) = 75+50i +3ki -2k = (75-2k) +i (3k+50)
</span><span>the product (25 + ki)(3+2i) equal a real number: 3k +50 = 0
</span>k = -50/3

5 0
3 years ago
What is the length of Arc AB, if the radius of Circle L is 12 inches?
WARRIOR [948]
 the radius of Circle L is 12 inches so the length of Arc AB is 24.07 inches
5 0
3 years ago
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