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frez [133]
2 years ago
11

Help Plzzzzzzzzzzzzzzzzzzz

Mathematics
1 answer:
mars1129 [50]2 years ago
7 0

(x+3)^{2}=19

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What is y - 8 = -1/2 (x + 4) in standard form (8th grade math)
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Y-8=-1/2x + (-2)
  +8               +8
y=-1/2x +6
I just used a 2 step equation for it. I first used Distributive Property. Then Subtracted 8 from each side
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3 years ago
Show that for any real number x ≥ 0 the set (x,x + 1]∩N is a singleton set
inessss [21]

Answer: First, a singleton set is the set with only one element, for example, the set {∅} or set "null" is a singleton.

now, X ≥ 0, and X ∈ R.

(x,x + 1]∩N is the intersection between the set x and x+1 with the set of natural numbers, so the result of this operation is the set of all the natural numbers between x and x+1.

if x is a rational (or irrational) number, such as 1.5, then x +1 = 2.5

in (1.5, 2.5] there is only one natural element, the 2, then (x,x + 1]∩N is the singleton {2}

if x is a positive integer number, such as 1, then x + 1 = 2

the set is (1,2] is important to notice that 1 ∉ (1,2] because the set is open in the lower limit. so this set only contains one natural number, the 2; so again; the intersection with the natural set is a singleton

So this is proven for x rational, irrational and integers.

This happens because each element in the natural set is separated by the next one by 1, and in the set (x,x + 1]  although the distance between the lower and upper limits is 1, the set is open in the lower limit, so the distance is < 1. then you never can have two natural numbers on this set.

8 0
3 years ago
4x - 7y - 5z + 6<br><br> Write an expression equal that only uses addition
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4x + (-7y) + (-5z) + 6
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F(x)=x/(3x+2)

f(a+h)=(a+h)/(3a+3h+2)
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3 years ago
If there are three black, four white, two blue, and four gray socks in a drawer, what would be the probability of picking a blue
Alborosie

Answer:

3/13 which is 0.23 as a decimal

Step-by-step explanation:

8 0
3 years ago
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