All categories

3 years ago

Helppp me please I need help

Mathematics

1 answer:

Alenkasestr [34]3 years ago

6 0

Answer:

18x-2

Step-by-step explanation:

so to find the perimeter it's 2W + 2L

so 2(6x-2)+2(3x+1)

we can use the distributive property to expand it to

12x-4+6x+2

then combining like terms it becomes

18x-2

and that's simplest form

You might be interested in

carol has a record of winning 3 tennis matches for every 6 she loses. if she had a total of 45 matches during the year, how many

SpyIntel [72]

Answer:

Step-by-step explanation:

5 0

2 years ago

Two drivers, Alison and Kevin, are participating in a drag race. Beginning from a standing start, they each proceed with a const

Vilka [71]

Answer:

Alison wins against Kevin by 0.93 s

Step-by-step explanation:

Alison covers the last 1/4 of the distance in 3 seconds, at a constant acceleration $a_a$ , we have the following equation of motion

$s/4 = a_at_a^2/2$

where s (m) is the total distance, ta = 3 s is the time

$s = 4a_a3^2/2 = 18a_a$

$a_a = s/18$

Similarly, Kevin overs the last 1/3 of the distance in 4 seconds, at a constant acceleration $a_k$ , we have the following equation of motion:

$s/3 = a_kt_k^2/2$

tk = 4 s is the time

$s = 3a_k4^2/2 = 24a_k$

$a_k = s/24$

Since $a_a = s/18$ we can conclude that $a_a > a_k$ , so Alison would win.

The time it takes for Alison to cover the entire track

$s = a_aT_a^2/2$

$T_a^2 = 2s/a_a = 2s/(s/18) = 36$

$T_a = \sqrt{36} = 6 s$

The time it takes for Kevin to cover the entire track

$s = a_kT_k^2/2$

$T_k^2 = 2s/a_k = 2s/(s/24) = 48$

$T_a = \sqrt{48} = 6.93 s$

So Alison wins against Kevin by 6.93 - 6 = 0.93 s

4 0

2 years ago

Kendall's sister had 25 hair clips. 7 of them were blue and the rest were purple.What percent of Kendall's sister hair clips wer

Ludmilka [50]

The answer is 18/25 = .72 or 72%

3 0

2 years ago

The ratio of quarters to dimes in a coin collection is 5 : 3. You add the same number of new quarters as dimes to the collection

kondaur [170]

Answer:

Step 1. The answer is no.

Step 2. The answer is b.

Step-by-step explanation:

I think Step 2 already sort of explains the reasoning behind the answer for step 1.

Hope this helps!

3 0

2 years ago

Read 2 more answers

Mrs. Nestler enjoys listening to classical music. She has the following audio CDs by her favorite composers in her collection: 4

STALIN [3.7K]

Answer:

Answer:10.55% probability Step-by-step explanation:A probability is the num

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers