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tigry1 [53]
3 years ago
9

Write each sum using summation notation. 1+ 3 + 5 + 7 + ⋯ + 99

Mathematics
1 answer:
PIT_PIT [208]3 years ago
4 0

Answer:

\Sigma(2n-1) \left \{ {{n=50} \atop {n=1}} \right. \hspace{5} n\in N

Step-by-step explanation:

First, we need to find the sequence associated to the summation. As you can see the sum only takes odd numbers into account. Hence the sequence it is defined by:

2n-1

Where:

n\in N

Now, we only need to find the limits of the summation:

Evaluating n=1

2(1)-1=2-1=1

Evaluating n=50

2(50)-1=100-1=99

Therefore the summation can be written as:

\Sigma(2n-1) \left \{ {{n=50} \atop {n=1}} \right.

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g100num [7]

Answer:

step 1. Angle bisector theorem.

step 2. 14/6 = 21/ (3x - 12)

step 3. 14(3x - 12) =21(6)

step 4. 6x - 24 = 18

step 5. 6x = 42

step 6. x = 7.

7 0
2 years ago
2. convert the following degrees to redians. 3. Convert the following radians to degrees.​
astraxan [27]

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6 0
2 years ago
Abel Alonzo, Director of Human Resources, is exploring employee absenteeism at the Plano Power Plant. Ten percent of all plant e
Alex17521 [72]

Answer: 0.23

Step-by-step explanation:

Given : F is the event "works in the finishing department;"

and A is the event "is absent excessively."

Given : 10% of all plant employees work in the finishing department; 20% of all plant employees are absent excessively; and 7% of all plant employees work in the finishing department and are absent excessively.

i.e. P(A)= 0.20 ;  P(F)=0.10 ; P(A ∩ F) = 0.07

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Then,

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5 0
3 years ago
A. 3.4
seropon [69]
A is your answer 3.4

Use Pythagorean Theroum

10.2 squared = 9.6 squared + x squared
104= 92.6+x squared
x squared = 11.4
x= 3.37
round x to 3.4

Hope that helps!
4 0
3 years ago
What is 851 divided by 48?
makvit [3.9K]

Answer:

= 17.7 ( rounded off to one decimal place)

STAY SAFE, GOD BLESS YOU :)

Step-by-step explanation:

851 ÷ 48

= 17.7291

= 17.7 ( rounded off to one decimal place)

3 0
3 years ago
Read 2 more answers
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