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inessss [21]
3 years ago
14

Simplify (3x + 1)2 using the square of a binomial formula.

Mathematics
1 answer:
nika2105 [10]3 years ago
4 0

Answer:

B) 9x² + 6x + 1

Step-by-step explanation:

(3x + 1)^2

(3x + 1) • (3x + 1)

9x² + 3x + 3x + 1

9x² + 6x + 1

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Combine like terms in 3x + 2y + 2x + 4y + 1
kvv77 [185]

Answer: 5x+6y+1 is the answer

Step-by-step explanation: to combine like terms that have to have the same variable so you can add them so for example you have 3x+2x which is equal to 5x then 2y+4y which is = to 6y and you also have 1 that isn't adding to anything because the others have variables

3 0
3 years ago
Read 2 more answers
B) Select all expressions that can be used to find 85% of 280.
pogonyaev

Answer:

238

Step-by-step explanation:

85%of 280 is 238 ok.......

5 0
3 years ago
a lightbulb manufacturer would like to increase production from 1.4 million to 3.9 million lightbulbs per year. find the percent
Olegator [25]

Answer:

The percentage increase of the production expectation to 1 decimal place is 178.6%

Step-by-step explanation:

Here in this question, we are interested in finding the percentage increase in the production capacity of the hypothetical company;

We can make or have a formula for this to make our workings easier;

% increase = (new value - old value)/old value * 100%

From the question;

The old value is the former productive capacity which is 1.4 million

The new productive capacity is 3.9 million

Thus;

The percentage increase in the production capacity would be;

(3.9 million - 1.4 million)/1.4 million * 100%

= 2.5 million/1.4 million * 100% = 178.57%

But the question asks we should have our answer in one decimal place;

Thus; 178.57% becomes 178.6%

4 0
3 years ago
jake and jamie are at a restaurant for lunch. jake orders spaghetti for $9.59 and a soda for $2.03. jamie orders a club sandwich
DIA [1.3K]
Jake spent more on lunch. They left $3.74 as the tip.
5 0
3 years ago
There are 76 marbles in a bin and 50% of the marbles are red. How many red marbles are in the bin?
bezimeni [28]

Answer:

The answer is 38 red marbles are in the bin.

Step-by-step explanation:

Divide 76 by 2 to get your answer.

6 0
2 years ago
Read 2 more answers
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