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zhenek [66]
3 years ago
15

Find the sum of the first 13 terms in the series -5+1+7...+67

Mathematics
1 answer:
valentinak56 [21]3 years ago
5 0
This is an arithmetic series with common difference 6 

S13  = (13/2)[2*-5 + (13-1)*6)]  =  403
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How do you write double the product of 4 and 7
leva [86]
Double the product of 4 and 7

Well a product meaning you multiply 2 numbers together. Multiplying that by 2 because it says double...


4 \times 7 = 28
This should be your final answer below! Hope this helps


28 \times 2 = 56
6 0
3 years ago
The symmetry of a hyperbola with a center at (h, k) only occurs at y = k. True or False
Vikki [24]
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3 years ago
The result of a survey of 200 adults are shown in the table
defon

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Step-by-step explanation:

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4 0
3 years ago
Read 2 more answers
Solve the system of equations by graphing. x+y=-9 4x+y=-19
shutvik [7]

For this case we have the following system of equations:

x + y = -9\\4x + y = -19

We multiply the first equation by -4:

-4x-4y = 36

We have the following equivalent system of equations:

-4x-4y = 36\\4x + y = -19

We add the equations:

-4x + 4x-4y + y = 36-19\\-3y = 17\\y = - \frac {17} {3}

We find the value of the variable "x":

x = -9-yx = -9 - (- \frac {17} {3})\\x = -9 + \frac {17} {3}\\x = \frac {-27 + 17} {3}\\x = - \frac {10} {3}

Thus, the solution of the system is:

(x, y): (- \frac {10} {3}, - \frac {17} {3})

See the graphic in the attached image

ANswer:

(x, y): (- \frac {10} {3}, - \frac {17} {3})

See the graphic in the attached image

4 0
4 years ago
How many solutions does the following absolute value equation have? |x+3|=4
bekas [8.4K]
It has two solutions.
The first solution is x = -7
The second solution is x = 1

Hope this helps!
3 0
4 years ago
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