3 years ago

Math help? please.......

Mathematics

1 answer:

saveliy_v [14]3 years ago

6 0

The answer is
$- 4 + \sqrt{11}$

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andreyandreev [35.5K]

You multiply the numbers and add the variable's exponents.

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4 years ago

Find the sum of the series and show your process for finding each term leading to the final sum.

Crazy boy [7]

ANSWER

$\sum_{k=3}^5( - 2k + 5) = - 9$

EXPLANATION

The given series is

$\sum_{k=3}^5( - 2k + 5)$

This series is finite.

The expanded form is

$\sum_{k=3}^5( - 2k + 5) = ( - 2 \times 3 + 5) + ( - 2 \times 4 + 5) + ( - 2 \times 5 + 5)$

This simplifies to

$\sum_{k=3}^5( - 2k + 5) = ( - 6 + 5) + ( - 8+ 5) + ( - 10+ 5)$

$\sum_{k=3}^5( - 2k + 5) = ( - 1) + ( - 3) + ( - 5)$

$\sum_{k=3}^5( - 2k + 5) = - 9$

5 0

3 years ago

I only have 5 minutes to answer please help!!

dezoksy [38]

Answer:

The answer is D

Step-by-step explanation:

4.8 times 0.5 equals 2.4+ 1.2 = 3.6 which is the total number of miles he ran/walked

Hope it helped!

7 0

3 years ago

3(a+b)=19 if a=6, then a+b=?

aniked [119]

Hello!

In a really simple way, 3 times our answer is 19. We can just divide to find it.

19/3= 6 1/3

Anyway, it might be nice to solve the equation for b. If a=6, then b has to be 1/3, but let's check.

18+3b=19

3b=1

b=1/3

Therefore, a+b= 6 1/3

I hope this helps!

6 0

3 years ago

Read 2 more answers

(x + 2) is raised to the fifth power. The third term of the expansion is:

morpeh [17]

Answer:

Step-by-step explanation:

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3 years ago