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Allushta [10]
3 years ago
12

Determine the sum of the first 33 terms of the following series: −52+(−46)+(−40)+...

Mathematics
1 answer:
masya89 [10]3 years ago
6 0

Answer:

1320

Step-by-step explanation:

Use the formula for sum of series, s(a) = n/2(2a + (n-1)d)

The terms increase by 6, so d is 6

a is the first term, -56

n is the terms you want to find, 33

Plug in the numbers, 33/2 (2(-56)+(32)6)

Simplify into 33(80)/2 and you get 1320

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Y varies directly as x. y=50 when x=5 find y when x=11????
olasank [31]

Step-by-step explanation:

given

y is directly to x

to remove directly we use constant let constant be k

y=k x. (1)

let calculate value of k

as it is given

y=50 when x=5

so put in above equation (1)

50=k(5)

50/5=k

10=k

now let find y when x =11

in above equation put the value of x and k

y=10×11

y= 110

5 0
3 years ago
I NEED THIS ASAP!!!!
Andreas93 [3]
If you subtract 2 from both sides

It would be 4=-4x


So the answer is B
6 0
3 years ago
If x+3/3 = y+2/2, then x/3 = ______
timurjin [86]
X+1=y+1

X-Y= 0

Hope this helped you

7 0
2 years ago
The equation is solved. Describe the property used in each solution.
UNO [17]

Answer:

Step-by-step explanation:

It’s multiplication and then division. Just did it on edge2020.

7 0
3 years ago
What is 2.125 as a fraction?
Nuetrik [128]

2.125 = 17/8 = 21/8 as a fraction


Step by Step Solution

To convert the decimal 2.125 to a fraction follow these steps:


Step 1: Write down the number as a fraction of one:


2.125 = 2.125/1


Step 2: Multiply both top and bottom by 10 for every number after the decimal point:


As we have 3 numbers after the decimal point, we multiply both numerator and denominator by 1000. So,


2.125/1 = (2.125 x 1000)/(1 x 1000) = 2125/1000.


Step 3: Simplify (or reduce) the above fraction by dividing both numerator and denominator by the GCD (Greatest Common Divisor) between them. In this case, GCD(2125,1000) = 125. So,


(2125÷125)/(1000÷125) = 17/8 when reduced to the simplest form.


As the numerator is greater than the denominator, we have an IMPROPER fraction, so we can also express it as a MIXED NUMBER, thus 2125/1000 is also equal to 2 1/8 when expressed as a mixed number.


Hope that helps feel free to ask me questions

Brainliest??


5 0
3 years ago
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