2 years ago

Who needs some words of motivation?

Mathematics

2 answers:

Anna71 [15]2 years ago

4 0

Answer:

I do

Step-by-step explanation:

noname [10]2 years ago

3 0

Answer:

i believe in u, good luck and you got this :))

Step-by-step explanation:

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Which properties are best used prove a quadrilateral is a square?

adell [148]

Answer:

a, b, c, & d

Step-by-step explanation:

8 0

2 years ago

Find the product. (n + 7)2

masha68 [24]

(n+7)2
= (n)(2) + (7)(2)
=2n+14

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3 years ago

Read 2 more answers

How do I work out 2x + 37 = 8x + 7

Setler [38]

You have to make sure that whatever you do to one side, you also do to the other.

2x + 37 = 8x + 7
2x + 37 - 2x = 8x + 7 - 2x
37 = 6x + 7
37 - 7 = 6x + 7 - 7
30 = 6x
30 / 6 = 6x / 6
5 = x
x = 5

Hope this helps! :)

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3 years ago

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Hi, can somoene please check why my solution and explain why I get the wrong answer.

trapecia [35]

Answer:

$a_n=(1-n)2^n+3^n$

Step-by-step explanation:

You are correct down to the part where you add the partial results:

$a_n=a_n^h+a_n^p=A3^n+B2^n-n2^n\\\text{Using the given starter values, we can find A, B:}\\a_0=2=A\\a_1=7=3A+2B+2\\\text{has solution A=1, B=1, so ...}\\\\a_n=3^n+2^n-n2^n$

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2 years ago

What is the exact value of x?

boyakko [2]

Answer:

Step-by-step explanation:

$5\cdot 21^{5x} = 16 \\\ 21^{5x} = \frac{16}{5} \\\\ 21^{5x} = 3.2 \\\ log 21^{5x} = log 3.2 \\\ 5x\cdot log 21 = log 3.2 \\\ 5x = \frac{log 3.2}{log 21} \\\\\ x = \frac{log 3.2}{5\cdot log 21}$

I hope I helped you.

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2 years ago