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Sveta_85 [38]
3 years ago
7

Which expression is equivalent to (2x – 3)2 – 3.5x2(2x –5) + 6x(2.5x2 – x + 3.1)?

Mathematics
1 answer:
Olegator [25]3 years ago
5 0

Answer:

Yuhh the answers c dawhggg trus me i just did the same thing lawl!

Step-by-step explanation:

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In science class, Logan estimates the volume of a sample to be 42 mL. The actual volume of the sample is 48 mL. Find the percent
galina1969 [7]

Answer:

Percent of error of Logan's Estimate is 12.5%

Step-by-step explanation:

Given:

Actual Volume of sample =48 mL

Estimated Volume of sample = 42 mL

We need to find the percent errors of Logan estimate.

To calculate percent of error below are the steps.

Step 1: Subtract the Actual value from the estimated value.

Step 2: Take the absolute value of step 1

Step 3: Divide that answer by the Actual value.

Step 4: Multiply that answer by 100 and add the % symbol to express the answer as a percentage.

Now Substituting the values we get;

Step 1: To Subtract Actual Volume with Estimated Volume

Estimated Volume of sample - Actual Volume of sample = 42 - 48 = -6 mL

Step 2: Find Absolute value we get;

|-6| = 6

Step 3 : Divide that answer by the Actual volume.

\frac{6}{48}=0.125

Step 4: Multiply that answer by 100 and add the % symbol to express the answer as a percentage.

0.125\times 100 = 12.5\%

Hence Percent of error of Logan's Estimate is 12.5%

5 0
3 years ago
What is the difference of the polynomials? (12x^2-11y^2-13x)- (5x-14y^2-9x)
vova2212 [387]
The Answer is A... your welcome
7 0
3 years ago
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What is the answer to this??/
Alja [10]

Answer:

The median dr smith is 15

Step-by-step explanation:

7 0
3 years ago
Pleaseeeee i need help before school tomorrow thanks :)
BaLLatris [955]

Answer:

You need to know that not a cheat

3 0
1 year ago
(3,-4, slope = undefined
Anni [7]



lines with undefined slope are vertical

equation are  in form of x constant

through the points ( 3 , -4)

the line is x=3


4 0
4 years ago
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