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Over [174]
2 years ago
8

I need help with this

Mathematics
1 answer:
elena-s [515]2 years ago
3 0

Answer:

the first option - 48s + 4.75

Step-by-step explanation:

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Find the sum of the geometric series.
sveticcg [70]

Answer:

40/3  option B

Step-by-step explanation:

20-10+5-5/2+ ...

We need to find the sum of infinite geometric series

S_n = \frac{a}{1-r}

a is the first term (20)

r is the common ratio

To find common ratio we divide second term by first term

r=\frac{-10}{20} = -\frac{1}{2}

now we plug in the values

S_n = \frac{20}{1-(-\frac{1}{2}}

S_n = \frac{20}{1+\frac{1}{2}}

S_n = \frac{20}{\frac{3}{2}}

S_n = 20 * \frac{2}{3}

sum = 40/3

7 0
3 years ago
3) On a map of the U.S.,
sp2606 [1]

Answer:

55

Step-by-step explanation:

ebbjsb c jv  djcbvbbf hdcndjv  dbvndjv dhvjbd djbvdj

7 0
3 years ago
suppose the university bursar said that 600 student entered for business mathematics 300 entered for statistics while 173 studen
horsena [70]
The number of students who enrolled in business mathematics alone can be calculated by subtracting the number of students enrolled in both from the total number of students enrolled for business mathematics.

                                x = 600 - 173 = 427

In similar manner, we solve for the number of students enrolled for only statistics

                                 y = 300 - 173 = 127

The total number of students enrolled in two courses altogether is the sum of x and y and 173.

                                T = 427 + 127 + 173 = 727

Thus, all in all there are 727 students enrolled in the two courses.  
4 0
3 years ago
??? I only know how to find the complementary angles<br> :/
scoundrel [369]
Well to find the angles, simply see what must the angles be, to equal to 180 or 90 degrees. So we know the angle between C and D would be 90 degrees, so will the angle between A and C. The angle between B and A and the angle between B and C must give us a total of 90 degrees, so that means each would be 45 degrees. As 45 + 45 = 90. Also I would assume that angle between D and F would also be the same as between B and A which would be 45 degrees. Finally the angle between A and F would be the difference between 180 and 45 degrees. So it would be 180 - 45 = 135 degrees.
5 0
3 years ago
Alva Nunez is a punch press operator for Drummond Machine Company. She earns $1.10 for every molding she presses. What is her to
madreJ [45]
If I understand this correctly you would multiply $1.10 by 310 and you should get your answer.
8 0
3 years ago
Read 2 more answers
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