HELP ME PLS!!!!!!!!!!!!

Find the 7th term of the arithmetic sequence 4x + 5, 11x + 9,18x + 13, ...

Svet_ta [14]

Step-by-step explanation:

we see the common difference is

a2-a1 = 11x + 9 - 4x - 5 = 7x + 4

an = an-1 + (7x+4) = a1 + (n-1)×(7x+4)

for a7 we have then

a7 = 4x + 5 + 6×(7x +4) = 4x + 5 + 42x + 24 = 46x + 29

5 0

3 years ago

What is the area of this isosceles trapezoid 96 60 48 72

Lelechka [254]

Step-by-step explanation:

s3d4drks3ks2srddex5v5

4 0

3 years ago

Find the difference: square root of 20 - square root of 80

Mamont248 [21]

Answer:

$-2\sqrt{5}$

Step-by-step explanation:

$\sqrt{20} = \sqrt{10*2} = \sqrt{5 * 2 *2} = \sqrt{2^2 * 5} = 2\sqrt{5} \\\\\sqrt{80} = \sqrt{20*4} = \sqrt{5*4 *4} = \sqrt{4^2 * 5} = 4\sqrt{5} \\\\2\sqrt{5} - 4\sqrt{5} = -2\sqrt{5}$

8 0

3 years ago

Read 2 more answers

Please someone help I’m in the middle of my test and I don’t understand this question please someone help me answer it.

DENIUS [597]

Answer:

Freedom of the American people

broadened as a result of the Civil War.Freedom of the American people

broadened as a result of the Civil War.

Step-by-step explanation:

8 0

2 years ago

What is the 5th term in the arithmetic sequence below?<br> 27, 15, 3.-9,-....

Lubov Fominskaja [6]

Answer: -21

Step-by-step explanation:

The numbers are subtracted by 12 each time

3 0

3 years ago