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vagabundo [1.1K]
3 years ago
5

Solve for 28=3(x+8)+x

Mathematics
1 answer:
professor190 [17]3 years ago
7 0

Answer:

x=1

Step-by-step explanation:

hope this helps!

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The weekly earnings of students in one age group are normally distributed with a standard deviation of 47 dollars. A researcher
ELEN [110]

Answer:

Option D) 340

Step-by-step explanation:

We are given the following in the question:

Alpha, α = 0.05

Population standard deviation, σ = $47

Margin of error = 5

95% Confidence Interval:

\mu \pm z_{critical}\frac{\sigma}{\sqrt{n}}

\text{Margin of error} = z_{critical}\frac{\sigma}{\sqrt{n}}

Putting the values, we get,

z_{critical}\text{ at}~\alpha_{0.05} = 1.96

5 = 1.96(\dfrac{47}{\sqrt{n}} )\\\\\sqrt{n} = \dfrac{47\times 1.96}{5}\\\\n = 339.443776\\\Rightarrow n \approx 340

Thus, the correct answer is

Option D) 340

7 0
3 years ago
A company design a logo using a kite figure around the letter t
aliina [53]
The answer is 192sq.cm.
REASONING: This would be by multiply the length by the height in order to get the area. 12*19 is equal to 192.
PLEASE MARK BRAINIEST!! Have a good day!
6 0
3 years ago
Make x the subject of the formula y = m x + b
NemiM [27]
Y-b/m=x (you just move everything to the other side)
5 0
3 years ago
Is -2 a solution of 2x+8=2?
Katarina [22]

Answer:2x+8=2

2x=2-8

2x= -6 (devide both sides by 2 to get x)

2x/2 and -6/2

×=3

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
During the​ women's basketball championship​ game, team a scored 33 more points than team
Olin [163]
Team A scored a total of 80,597 points I believe

161,161 + 33 = 161,194
161,194 ÷2 = 80,597
80,597- 33 = 80,564
80,564 + 80,597 = 161,161
4 0
3 years ago
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