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kiruha [24]
3 years ago
7

The Value of Expression B is eight times the value of Expression A Without evaluating Expression A, Determine what number belong

s in the box in Expression B. Explain how you determined This Question.
Expression A: 4×[(1.5+100.25)x3.65]

Expression B : ?×[(1.5=100.25)x3.65]
Mathematics
2 answers:
romanna [79]3 years ago
3 0
? = 32 because 4*8=32
padilas [110]3 years ago
3 0
The first thing we are going to do for this case is to write the following expression:
 Expression B = 8 * (Expression A)
 Substituting we have:
 Expression B = 8 * (4 × [(1.5 + 100.25) x3.65])
 Then, rewriting:
 Expression B = 32x [(1.5 + 100.25) x3.65]
 Answer:
 
the number that belongs in the box in Expression B is:
 
32
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A sample of 50 observations is taken from an infinite population. The sampling distribution of : a.is approximately normal becau
Korvikt [17]

Answer:

a.is approximately normal because of the central limit theorem.

Step-by-step explanation:

The central limit theorem states that if we have a population with mean μ and standard deviation σ and we take sufficiently large random samples from the population with replacement, then the distribution of the sample means will be approximately normally distributed.

For any distribution if the number of samples n ≥ 30, the sample distribution will be approximately normal.

Since in our question, the sample of observations is 50, n = 50.

Since 50 > 30, then <u>our sample distribution will be approximately normal because of the central limit theorem.</u>

So, a is the answer.

3 0
3 years ago
1. A right triangle is shown below. Use the Pythagorean Theorem to determine the lengths of each side. Phythagorean Theorem: a2
erik [133]
This may not be very pretty.
(2x + 5) * (2x + 5) expanded is (use foil)
F = 4x^2
O = 2x * 5 = 10x
I = 2x + 5 = 10x
L = 25
Total = 4x^2 + 20x + 25

(x + 3)(x + 3) = x^2 + 6x + 9 by the same method

 (2x + 7)(2x + 7) = 4x^2 + 28x + 49 Same method.

4x^2 + 20x + 25 + x^2 + 6x + 9 = 4x^2 + 28x + 49
5x^2 + 26x + 34 = 4x^2 + 28x + 49 Collect everything on the left.
x^2 - 2x - 15 = 0
(x - 5)(x + 3) = 0
x + 3 will have no meaning.
x - 5 = 0
x = 5

2x + 5 = 2*5 + 5 = 15
x + 3 = 5 + 3 = 8
2x+ 7 = 2*5 +7 = 17

Check
15^2 + 8^2 = 17^2
225 + 64 = ? 289
289 = 289

a = 15 <<<<< answer
b = 8 <<<<< answer
c = 17 <<<<< answer
 


5 0
3 years ago
How many times can 167 go into 1135.
Bingel [31]
It can go 6.8 times


Good luck! :D
5 0
3 years ago
Read 2 more answers
Does anyone know this ?
MariettaO [177]
180 - 64 = 116
116 / 2 = 58 :)

Check: 58 + 58 + 64 = 180
4 0
3 years ago
What's the equivalent
olga2289 [7]

9 1/2 = 19/2

(29/5) / (19/2)

When changing division to multiplication, flip the number (right hand side).

(29/5) * (2/19)

58/95

7 0
3 years ago
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