2/5 or do you need to show work as well?
A)
Note that there are only two numbers that correspond complete wording of question: 59 and 68
It is easy to verify that the number found number is 68:
Look:
6 + 8 = 14 and
<span>86 - 68 = 18
b)
Now you can solve one system:
x + y = 21
x - y = 5
Add both equations:
2x = 26
x = 13
So: y = 8
</span>
Answer:
D
Step-by-step explanation:
Since it’s asking for numbers between -1 and 8 the equation cannot contain a equal symbol therefore it must be D
If 2 is the factor:
6 and 10, 3 and 9, 4 and 8,
Answer:
d ≈ 14.6 units; M(2.5, 2, 6)
Step-by-step explanation:
The distance formula for 3 dimensions looks a lot like the one for 2 dimensions:
d = √((x2 -x1)^2 +(y2 -y1)^2 +(z2 -z1)^2)
Filling in the given numbers and doing the arithmetic, you find the distance between the points to be ...
d = √((6-(-1))^2 +(-3-7)^2 +(2-10)^2) = √(49+100+64) = √213 ≈ 14.6
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The midpoint is the average of the end points:
M = ((6, -3, 2) +(-1, 7, 10))/2 = (5/2, 2, 6)