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NNADVOKAT [17]
3 years ago
15

What is 2/5 x 1/4 Then Simplified Expression?

Mathematics
1 answer:
weeeeeb [17]3 years ago
6 0

Answer:

2/20 = 0.1

Step-by-step explanation:

  1. 2/5 × 1/4
  2. 2×1/5×4
  3. 2/20

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Can anyone please help with this
CaHeK987 [17]
About 3 in a half years I think
5 0
2 years ago
Read 2 more answers
A researcher computes the definitional formula for SS, and finds that Σ(x − M) = 44. If this is a sample of 12 scores, then what
olga_2 [115]

Answer:

Option B.

Step-by-step explanation:

Given information:

Σ(x − M) = 44

where, M is mean.

Sample size = 12

The computational formula for sample variance is

s^2=\dfrac{\sum (x-M)^2}{N-1}

where, M is sample mean and N is sample size.

Substitute Σ(x − M) = 44 and N=12 in the above formula.

s^2=\dfrac{44}{12-1}

s^2=\dfrac{44}{11}

s^2=4.0

The sample variance is 4.0.

Therefore, the correct option is B.

5 0
3 years ago
I have test corrections and I'm having trouble figuring out what I did wrong. I just need how to get the answer and I should be
Mrrafil [7]

Answer:

The answer is 68 :D

Step-by-step explanation:

(Just read the whole comment ;P)

3 0
3 years ago
Find the shortest side of a triangle whose perimeter is 64 if the ratio of two of its sides is 4:3 and the third side is 20 less
Sergio039 [100]

Answer:

The shortest side of the triangle is 18

Step-by-step explanation:

Let the sides the triangle be x, y and z.

From the question, the perimeter of the rectangle is 64, that is

x + y + z = 64 ...... (1)

Also, the ratio of two of its sides is 4:3, that is x:y = 4:3, then we can write that x/y = 4/3 ⇒ 3x = 4y ...... (2)

The third side, z, is 20 less than the sum of the other two, that is

z + 20 = x + y ...... (3)

Substitute equation (3) into (1)

Then,

z + 20 + z = 64

2z +20 = 64

2z = 64 - 20

2z = 44

z = 44/2 k

z = 22

From equation (3)

z + 20 = x + y

Then, k

22 + 20 = x +y

42 = x + y

x = 42 - y ...... (4)

Substitute this into equation 2

3x = 4y

3(42-y) = 4y

126 - 3y = 4y

4y + 3y = 126

7y = 126

y = 126/7

y = 18

Substitute this into equation (4)

x = 42 - y

x = 42 - 18

x = 24

∴ x = 24, y = 18 and z = 22

Hence, the shortest side of the triangle is 18.

4 0
2 years ago
The diagram shows an equilateral triangle, a square, and one diagonal of the square. what is the value of x
Verizon [17]

Answer:

can u get a pic of the diagram

Step-by-step explanation:

4 0
2 years ago
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