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Svet_ta [14]
3 years ago
5

Can I have some help with this? 5b+4+10=2

Mathematics
2 answers:
My name is Ann [436]3 years ago
7 0

5b+4+10=2 \\\\5b=-12\\\\b=-\dfrac{12}{5}

Scrat [10]3 years ago
5 0

Hello!

5b+4+10=2

Add the numbers with 10+4=14.

5b+14=2

Then subtract by 14 from both sides.

5b+14-14=2-14

Simplify

5b=-12

You can also divide by 5 from both sides.

\frac{5b}{5}=\frac{-12}{5}

Answer

b=-\frac{12}{5}

Hope this helps!

Thank you for posting your question at here on Brainly.

Have a great day!

-Charlie


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two terms of an arithmetic sequence are a6= 40 and a20= -16. write and explicit rule for the nth term
Lana71 [14]

Answer:

Tn = 64-4n

Step-by-step explanation:

The nth term of an AP is expressed as:

Tn = a+(n-1)d

a is the common difference

n is the number of terms

d is the common difference

Given the 6th term a6 = 40

T6 = a+(6-1)d

T6 = a+5d

40 = a+5d ... (1)

Given the 20th term a20 = -16

T20 = a+(20-1)d

T20 = a+19d

-16 = a+19d... (2)

Solving both equation simultaneously

40 = a+5d

-16 = a+19d

Subtracting both equation

40-(-16) = 5d-19d

56 = -14d

d = 56/-14

d = -4

Substituting d = -4 into equation

a+5d = 40

a+5(-4) = 40

a-20 = 40

a = 20+40

a = 60

Given a = 60, d = -4, to get the nth term of the sequence:

Tn = a+(n-1)d

Tn = 60+(n-1)(-4)

Tn = 60+(-4n+4)

Tn = 60-4n+4

Tn = 64-4n

7 0
3 years ago
What is the soulution set of the equation 3x^2=48
valentina_108 [34]

Answer:

x = ± 4

Step-by-step explanation:

given 3x² = 48 ( divide both sides by 3 )

x² = 16 ( take the square root of both sides )

x = ± \sqrt{16} = ± 4

x ∈ {- 4, 4 }


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Step-by-step explanation:

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10 I think..I might be wrong
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