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3 years ago

What is (-2x)+5+3x-4x+(-1)+(-x) simplified

Mathematics

1 answer:

Ostrovityanka [42]3 years ago

6 0

First you need to combine like terms (Which is x)

-2x+3x-4x-x+5-1 -----> x-4x-x+5-1 --------> 4x+4

The answer will be 4x+4

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For the sequence an = an-1 + an-2 and ai = 2, a2 = 3,

loris [4]

Answer:

$a_1 = 2$

$a_2 = 3$

$a_3 = 5$

$a_4 = 8$

$a_5 = 13$

Step-by-step explanation:

Given

$a_n = a_{n-1} + a_{n-2}$

$a_1 = 2$

$a_2 = 3$

Solving (a): The first term

This has already been given as:

$a_1 = 2$

Solving (b): The second term

This has already been given as:

$a_2 = 3$

Solving (c): The third term

This is calculated as:

$a_n = a_{n-1} + a_{n-2}$

$a_3 = a_{3-1} +a_{3-2}$

$a_3 = a_2 +a_1$

$a_3 = 3 +2$

$a_3 = 5$

Solving (d): The fourth term

This is calculated as:

$a_n = a_{n-1} + a_{n-2}$

$a_4 = a_{4-1} +a_{4-2}$

$a_4 = a_3 +a_2$

$a_4 = 5+3$

$a_4 = 8$

Solving (e): The fifth term

This is calculated as:

$a_n = a_{n-1} + a_{n-2}$

$a_5 = a_{5-1} +a_{5-2}$

$a_5 = a_4 +a_3$

$a_5 = 8+5$

$a_5 = 13$

3 0

3 years ago

Question 4-6. Earth is 93 million miles from the Sun. Pluto is 4.67 billion miles from the Earth.Calculate the ratio of the dist

luda_lava [24]

Answer:

PE/SE = 5.02×10¹

Step-by-step explanation:

Sun-Earth (SE) = 93×10⁶ miles

Pluto-Earth (PE) = 4.67×10⁹ miles

so, PE/SE = (4.67×10⁹) / (93×10⁶) = (4.67×10³)/93 =

= 50.215053763440860215... =

= 5.02×10¹ / 1 or simply 5.02×10¹

in other words, Pluto is a little bit more than 50 times farther away from Earth, than Earth is from the Sun.

6 0

3 years ago

Which is greater, 5/13 or 3/10?

malfutka [58]

5/13 = 0.3846153846153846
or for short 0.384

3/10 = 0.3

so most likely 3/10 is bigger than 5/13

8 0

3 years ago

I buy a MP3 player for £40 in a sale where it was 20% off. What was the original price

natta225 [31]

20% off means you paid only 80% of the original price.
0.8x=40
x=40÷0.8=50
so the original price is 50

6 0

3 years ago

Read 2 more answers

Mario can paint a house alone in 3 days. ben can paint the same house alone in 5 days. how long would it take them to paint the

Elan Coil [88]

The combined time taken if Mario and Ben work together will be 1.875 days.

Time taken:

Mario alone = 3 days
Ben alone = 5 days

Work rate :

Rate = 1 / time taken
Mario's rate = 1 / 3
Ben's rate = 1/5

Their combined rate can be written thus :

Mario's rate + Ben's rate = combined rate
1/3 + 1/5 = 8/15

Time taken if they work together :

Reciprocal of combined work rate
Combined time taken = 1 ÷ 8/15 = 15/8 = 1.875 days

Therefore, the time taken of they work together is 1.875 days

Learn more :brainly.com/question/18112348

8 0

3 years ago