Answer:
(x+1)(x-1)(x+3)(x-3)
Step-by-step explanation:
x4-10x^2+9
Group expression so that the coefficients of the x^2 terms add up to +9.
= x^4 -9x^2 - x^2+9
match coefficients in both groups
= x^4 -9x^2 - (x^2-9)
factor each group
= x^2 (x^2-9) - 1(x^2-9)
now factor out the common factor (x^2-9)
= (x^2-1)(x^2-9)
Finally, factor each quadratic factor
= (x+1)(x-1)(x+3)(x-3)
Answer: Ok so what i'v got for this one is that i averaged up all three numbers and i got an average of about 85%. Now you have to put in a fourth number which will actually be another 80% i believe
Step-by-step explanation: add up all 3 divide them all by the numbers then once your done with that plug in the 80% and see what your answer will be.
Answer:
The average speed at which Nimes drove his car was 50 miles per hour.
Step-by-step explanation:
Given that Nimes was driving to the hotel at 1:30 p.m., being 65 miles away from it, and finally arriving at its destination at 2:48 p.m., to determine the average speed at which the circle should be made. following calculation:
14:48 - 13:30 = 1:18
60 = 100
18 = X
(18 x 100) / 60 = X
1,800 / 60 = X
30 = X
65 / 1.30 = X
50 = X
Therefore, the average speed at which Nimes drove his car was 50 miles per hour.
Answer:
<u>The ratio of the width of the photo to the width of the poster is 1:9 or 1/9</u>
Step-by-step explanation:
1. Let's review the information provided to us to answer the question correctly:
Photo = 4 in. wide and 6 in. high
Poster = 3 ft wide and 4 ft high
2. What is the ratio of the width of the photo to the width of the poster?
Let's recall that 1 foot = 12 inches
Let's convert the width of the poster to inches, this way:
3 feet = 3 * 12 inches
3 feet = 36 inches
The width of the poster is 36 inches
Now, we calculate the radio, as follows:
Ratio = Width of the photo in inches/Width of the poster in inches
Ratio = 4/36 = 1/9 (Simplifying)
<u>The ratio of the width of the photo to the width of the poster is 1:9 or 1/9</u>
