3 years ago

I need help will give a lot of credit and brainly if you tell me the right boxes and if it is correct FYI this is zearn

Mathematics

1 answer:

kicyunya [14]3 years ago

3 0

Answer:

Step-by-step explanation:

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I WILL GIVE BRAINLIEST

krek1111 [17]

Answer: +42x

Step-by-step explanation:

The student only multiplied each term individually.

He should have (7x+3)² = (7x+3)(7x+3)

Which is 49x²+42x+9

Therefore the error is (42x) or the failure to apply the law of multiplication of variables in a bracket.

8 0

3 years ago

Logan measured a line to be 7.4 inches long. If the actual length of the line is 7.7 inches, then what was the percent error of

algol13

Answer:

3.9%

Step-by-step explanation:

Percentage error

$= \frac{7.7 - 7.4}{7.7} \times 100 \\ \\ = \frac{0.3}{7.7} \times 100 \\ \\ = \frac{300}{77} \\ \\ = 3.8961039 \\ \\ = 3.9 \%$

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3 years ago

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Given that 6x – 5y = 14<br>Find x when y = 2

Sloan [31]

Answer:

x = 4

Step-by-step explanation:

Given

6x - 5y = 14 ← substitute y = 2 into the equation

6x - 5(2) = 14

6x - 10 = 14 ( add 10 to both sides )

6x = 24 ( divide both sides by 6 )

x = 4

4 0

3 years ago

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A Little League team played a

Allushta [10]

Answer:

Step-by-step explanation:

So we are assuming only the times listed count toward telling us how long the game was, so you just add the three numbers together. 155, 175 and 30

4 0

3 years ago

Write an equation of the line with the given slope and y-intercept.

Snezhnost [94]

Answer:

$y=\frac{4}{3}x$

Step-by-step explanation:

general slope intercept equation of a straight line is given as

$y=mx+b$

where m is slope and b is y-intercept

here

$m=\frac{4}{3}$

and

$b=0$

8 0

3 years ago