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3 years ago

Please help!! In all honesty, I am absolutely terrible at math. Sometimes I get it, but most of the time I'm brain dead.

Mathematics

1 answer:

astraxan [27]3 years ago

8 0

Im like 90% positive that x= 13

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PLEASE HELP

Semenov [28]

Answer:

$\sum\limits^7_{n=1}(4n - 3)$

Step-by-step explanation:

Given

$1 + 5 + 9 + .....$

Required

Write a definition

First, we derive a formula for the series using:

$T_n = a + (n - 1)d$

From the attached data;

$a = 1$

$d = 5 - 1 = 4$

So:

$T_n = a + (n - 1)d$

$T_n = 1 + (n - 1) * 4$

$T_n = 1 + 4n - 4$

Collect like terms

$T_n = 4n - 4+1$

$T_n = 4n -3$

So, the definition for first 7 terms is:

$\sum\limits^7_{n=1}(4n - 3)$

6 0

2 years ago

If you are traveling 80 mph how long will it take you to travel 80 miles?<br><br>30 POINTS!!

Alona [7]

1 hour because you are traveling 80 miles per hour.

5 0

3 years ago

Read 2 more answers

“Simplify each expression.” <br> 5^3 x 5^-4 x 5^-1

kozerog [31]

Answer:

Exact Form:

1/25

Decimal Form:

0.04

Step-by-step explanation:

Make sure you multiply. That should get you to your answer.

Hope this helps.

3 0

3 years ago

What is 2/3 divied by 4/5 (kcf)

Alexandra [31]

The answer would be 5/6

3 0

3 years ago

What percent of 51 is 12?

Charra [1.4K]

12/51 x 100 = 23.53%

Answer: 23.53%

6 0

2 years ago