2 years ago

I really dont feel like using my brain today, so here are some easy questions for some points.

Mathematics

1 answer:

kirill [66]2 years ago

3 0

Answer:

6+3×4= 6+12= 18

(6+3)÷(4-5)= 9÷-1= -9

6+2^3×3= 6+8×3= 30

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Fed [463]

Duplicate don't answer!

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1 year ago

How would I find the answer?

Montano1993 [528]

Answer:

tangent

Step-by-step explanation:

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2 years ago

The 16th term of an A.P. is 40 and the sum of the first 5 terms is 5. Find the sum of the first 50 terms.

KiRa [710]

Answer:

The sum of first 50 terms is 3425.

Step-by-step explanation:

Let the first tem of A.P be 'a' and it's common difference be 'd'

Thus the 16th term of the A.P is given by

$T_n=a+(n-1)d\\\\40=a+15d..........(i)$

Now we know that the sum of first 'n' terms of the A.P is given by

$S_n=\frac{n}{2}[2a+(n-1)d]\\\\5=\frac{5}{2}[2a+4d]\\\\1=a+2d..........(ii)$

Solving equation 'i' and 'ii' simultaneously we get

$40=1-2d+15d\\\\13d=39\\\\\therefore d=3$

Thus $a=1-2\times 3=-5$

Thus the sum of first 50 terms euals

$S_{50}=\frac{50}{2}[2\times -5+(50-1)3]\\\\S_{50}=3425.$

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3 years ago

Read 2 more answers

What is 3.00 - 2.50 explain your work

arsen [322]

Answer:

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Step-by-step explanation:

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3 years ago

F(x) = 3x3 + 5x2 - 11x +3<br><br><br><br> Rational zeros

SSSSS [86.1K]

Answer:

x=2

Step-by-step explanation:

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2 years ago