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Anna007 [38]
3 years ago
8

Factor out the common factor in -45 + 81n + 90n^2

Mathematics
1 answer:
IRISSAK [1]3 years ago
6 0

A: I think it’s 9(−5+9n+10n2)

Step-by-step explanation:

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Charlie guesses that his dog weighs 34. 5 pounds. The dog actually weighs 32. 7 pounds. What is the percent error in Charlie’s g
expeople1 [14]

Percent error is the amount of error to actual value, in percent. The percent error in Charlie’s guess is approximately: Option D: 5.5%

<h3>How to calculate the percent error?</h3>

Suppose the actual value and the estimated values after the measurement are obtained. Then we have:

Error = Actual value - Estimated value

To calculate percent error, we will measure how much percent of actual value, the error is, in the estimated value.

\rm Percent \: Error = |\dfrac{Error}{Actual value}|\times 100 \\\\Percent \: Error = | \dfrac{\text{(Actual Value - Estimated Value)}}{Actual value}|\times 100 \\

(here |x| is such that it makes x non negative, thus, |-5| = 5, and |5| = 5)

For the given case, it is specified that:

Actual weight of dog = 32.7 pounds

Guessed weight of dog, by Charlie : 34.5 pounds.

Error = 32.7 - 34.5 = -1.8 pounds

Thus, percent error in Charlie's guess is calculated as:

\text{Percent Error} = |\dfrac{-1.8}{32.7}| \times 100 \approx 5.5\%

Hence, the percent error in Charlie’s guess is obtained approximately is given by: Option D: 5.5%

Learn more about percent error here:

brainly.com/question/25749180

3 0
3 years ago
Convert 23/3 (fraction) into a mixed number
Shkiper50 [21]

Answer:

7 2/3

Step-by-step explanation:

Do 23 divided by 3 = 7 2/3.

6 0
3 years ago
Read 2 more answers
find the perimeter (p) of a rectangle with a length (1) of 12m and a width (w) of 8.4m using the formula p=21+2w
NikAS [45]

Answer:

The answer is 40.8 m.

Step-by-step explanation:

To find the perimeter of the rectangle, use the formula P= 2(l)+ 2(w). Plug in the information given in the question, and the equation will look like

P= 2(12m) + 2(8.4m)

Solve the equation, and the final answer will be 40.8 m.

4 0
3 years ago
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olganol [36]
Y=-3x+5 because the line crosses the y-axis at (0,5) and the slope is -3 because the rise/run saying it goes down 3 and over 1 which can be simplified to -3.
3 0
3 years ago
Identify the area of the polygon that has vertices A(0,3), B(5,5), C(7,3), and D(3,1)
natka813 [3]

Answer: A = 14 units2

Step-by-step explanation: Please look at the image below!

6 0
3 years ago
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