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Vsevolod [243]
3 years ago
13

Please pleaseeeee help me outtt, I need it quickkk will give brainliest

Mathematics
2 answers:
netineya [11]3 years ago
6 0

Answer:

-132

Step-by-step explanation:

Split the summation to make the starting value of  

k equal to 1.

ehidna [41]3 years ago
6 0

Answer:S6 = - 132

Step-by-step explanation:

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What does the expression (x+3)(9) represent
Dominik [7]

Answer:

evaluate 9(x+3)

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Step-by-step explanation:

i think i am sorry if i am wrong

3 0
2 years ago
If f(x) = -7x + 1 and g(x) = Square root of x-5,<br> what is (fºg)(41)?
Ghella [55]

This is similar to the other question you posted. Follow the same steps as before.

First find g(41).

g(41) = sqrt{x - 5}

g(41) = sqrt{41 - 5}

g(41) = sqrt{36}

g(41) = 6

We now find f(6).

f(6) = -7(6) + 1

f(6) = -42 + 1

f(6) = -41

Answer:

(fºg)(41) = -41

Did you follow?

6 0
2 years ago
How do you rationalise this surd?
Ksivusya [100]

\frac{1 +  \sqrt{3} }{ \sqrt{2} }   \times  \frac{ \sqrt{2} }{ \sqrt{2} } =  \frac{ \sqrt{2}  +  \sqrt{6}  }{2}
here you go
5 0
2 years ago
Read 2 more answers
roberto needs to convert the equation 3x + y = -5 into slope-intercept form. why is able to add or subtract the variable term fr
dimulka [17.4K]
3x + y = -5

-3x + 3x + y = -3x - 5

y = -3x - 5
7 0
3 years ago
THIS IS WORTH 10 POINTS BECAUSE OF IMPROPER ANWSERS FOR POINTS
almond37 [142]

Answer:

b

Step-by-step explanation:

5 0
2 years ago
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