What would be the height rounded to the nearest tenth

Please help me on these problems

lukranit [14]

Answer:

a=1 because 3x means 3 multiply 2 and it is substracted from 7 and 7-6 is 1

b=3

c=9

Step-by-step explanation:

hope you will understand from the explanation of a

6 0

3 years ago

What is the value of -42 +(5-2)(-3)?

SpyIntel [72]

Answer:

=-42+3-3

=-42-3+3

=-45+3

=-42

Step-by-step explanation:

this is the correct answer

please mark me as brainlist

6 0

3 years ago

PLEASE HELP MATH!! (BRAINLIEST + MORE) questions in picture!

klasskru [66]

Answer:

A) 2x*2 +6x -3x - 9= 2x*2 +3x -9

B) 2yx*2 +2yx +2y +3x*2 +3x +3

C) 36x*2 y +48yx +3xy*2 + 4y*2

D) 2x*3 - 4x*2 y + 3x -6y

7 0

2 years ago

Express the terms of the following sequence by giving a recursive formula.

emmasim [6.3K]

The recursive formula for given sequence is: $a_n = a_{n-1}-7$

And the terms will be expressed as:

$a_1 = 11\\a_2 = a_{2-1} - 7 \\a_2= a_1 - 7\\a_2 = 11- 7\\a_2 = 4\\a_3 = a_{3-1} - 7 \\a_3= a_2 - 7\\a_3 = 4 - 7\\a_3 = -3\\a_4 = a_{4-1} - 7 \\a_4= a_3 - 7\\ a_4= -3 - 7\\a_4 = -10\\a_5 = a_{5-1} - 7 \\a_5= a_4 - 7\\a_5 = -10 - 7\\a_5 = -17\\$

Step-by-step explanation:

First of all, we have to determine if the given sequence is arithmetic sequence or geometric. For that purpose, we calculate the common difference and common ratio

Given sequence is:

11,4,-3,-10,-17...

Here

$a_1 = 11\\a_2 = 4\\a_3 = -3\\So,\\d = a_2 - a_1 = 4-11 = -7\\d = a_3-a_2 = -3-4 = -7$

As the common difference is same, given sequence is an arithmetic sequence.

A recursive formula is a formula that is used to generate the next term of the sequence using the previous term and common difference

So, the recursive formula for an arithmetic sequence is given by:

$a_n = a_{n-1} +d\\Putting\ d = -7\\a_n = a_{n-1}-7$

Hence,

The recursive formula for given sequence is: $a_n = a_{n-1}-7$

And the terms will be expressed as:

$a_1 = 11\\a_2 = a_{2-1} - 7 \\a_2= a_1 - 7\\a_2 = 11- 7\\a_2 = 4\\a_3 = a_{3-1} - 7 \\a_3= a_2 - 7\\a_3 = 4 - 7\\a_3 = -3\\a_4 = a_{4-1} - 7 \\a_4= a_3 - 7\\ a_4= -3 - 7\\a_4 = -10\\a_5 = a_{5-1} - 7 \\a_5= a_4 - 7\\a_5 = -10 - 7\\a_5 = -17\\$

Keywords: arithmetic sequence, common difference

Learn more about arithmetic sequence at:

#LearnwithBrainly

6 0

4 years ago

What is the value of the expression below when x equals 3?<br><br> 17 + 11x

Rom4ik [11]

Answer:

50

Step-by-step explanation:

7 0

3 years ago

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