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Pani-rosa [81]
3 years ago
8

(−2)(a−b)+3(a+b) need help plzzz

Mathematics
2 answers:
Shalnov [3]3 years ago
7 0

Answer:

a +5b

Step-by-step explanation:

(−2)(a−b)+3(a+b)

Distribute

-2a -2(-b) +3a +3b

-2a +2b +3a+3b

Combine like terms

-2a +3a   +2b +3b

a +5b

Svetach [21]3 years ago
7 0

Answer:

a + 5b

Step-by-step explanation:

(−2)(a−b)+3(a+b)

-2a + 2b + 3a + 3b

a + 5b

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What is 48 to the square root of 9.5
Leokris [45]

48 divided by sqrt of 9.5 =

48 divided by 3.082207 = 15.57325643605378 is your answer

4 0
4 years ago
I need help solving this problem
Elena L [17]
Use the given values in the compound interest formula to solve for time, n.

A is the final amount of money, $2800
P is the initial or starting amount $1900
i is the interest rate as a decimal 0.025
n is time in years since it annual.

2800 = 1900(1 + 0.025)^n

2800 = 1900(1.025)^n

2800/1900 = (1.025)^n

28/19 = (1.025)^n

take the natural log of both sides to solve for exponent.

ln(28/19) = ln(1.025^n)

power rule of logarithmic moves exponent

ln(28/19) = n*ln(1.025)

ln(28/19) / ln(1.025) = n

put into a calculator

15.7 years = n
4 0
3 years ago
8
Nimfa-mama [501]
3
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because the answer is 6 over -4 and it simplified is that answer.
3 0
3 years ago
MARKING BRAINLIEST AND +50 PTS IF CORRECT!!!!
Sphinxa [80]

Answer:If you have two parallel lines and shift both to the left by the same amount, that does not alter the distance between the lines. Thus, c is correct.

Step-by-step explanation:

4 0
3 years ago
Find the nth term of this quadratic sequence<br> 3, 11, 25, 45, .
Hoochie [10]

The term of the given quadratic sequence is found to be 3n² - n + 1 using the principle of mathematical induction.

Given,

In the question:

The quadratic sequence is :

3, 11, 25, 45, ...

To find the nth term of the quadratic sequence.

Now, According to the question;

The first term of the sequence is 3, the second term is 11, the third term is 25, and the fourth term is 45.

The difference between the first and second terms can be calculated as follows:

11-3 = 8

The difference between the second and third terms can be calculated as follows:

25-11 = 14

The difference between the third and fourth terms can be calculated as follows:

45-25 = 20

The sequence is expressed as follows:

3,3+8,11+11,25+20,...

The difference between consecutive terms expands by 6.

Use the principle of mathematical induction.

6(\frac{n(n+1)}{2} )

= 3n(n+1)

The sequence's nth term can be calculated as follows:

term = 3n(n+1) - 4n + 1

             = 3n² - n + 1

Hence, the term of the given quadratic sequence is found to be 3n² - n + 1 using the principle of mathematical induction.

Learn more about Principle of mathematical induction at:

brainly.com/question/29222282

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6 0
2 years ago
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