2 years ago

What error did Lucia make?

Mathematics

1 answer:

Veronika [31]2 years ago

8 0

Answer:

See below

Step-by-step explanation:

She combined 3x and - 9x incorrectly

she should have gotten - 6 x not - 12 x

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4-1/4 with no decimal point

suter [353]

Answer:

4-25

Step-by-step explanation:

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3 years ago

What is the length of AA' , rounded to the nearest hundredth? Type a numerical answer is the space provided. Do not type spaces

inna [77]

Coordinate of A are (0,0)
Coordinates of A' are (5,2)

We can find the distance from A to A' using the distance formula:

$AA'= \sqrt{(5-0)^{2}+ (2-0)^{2} } \\ \\ 
AA'= \sqrt{25+4} \\ \\ 
AA'= \sqrt{29} \\ \\ 
AA'=5.39$

Thus, rounded to nearest hundredth, AA' is equal to 5.39

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3 years ago

In New York a crowed subway has 375 passengers distributed between 5 cars. What is the unit rate for each subway car?

Andrews [41]

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3 years ago

What is the rate of change between (2,2) and (17,7)

ziro4ka [17]

Answer:

$\frac{1}{3} = m$