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OLEGan [10]
3 years ago
11

How to solve this binomial: (-x+9)(-x+7)

Mathematics
1 answer:
Vlada [557]3 years ago
7 0
Well the answer is x^2 - 16x + 63
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Here are the prices for 8 different MP3 players. Find the standard deviation.
Elis [28]
The mean is 250.875.

Using this information, I can put the following into a calculator:
√(((250.875-195)²+(250.875-358)²+(250.875-201)²+(250.875-276)²+
(250.875-161)²+(250.875-301)²+(250.875-387)²+(250.875-128)²)÷8)

Which equals:
87.9878

This is the standard deviation of the MP3 players.
6 0
4 years ago
You have 8 times as many dimes as nickels. You have 18 dimes
fenix001 [56]

Answer:

$1.70

Step-by-step explanation:

Let the number of nickels be  x.

Thus, by the problem statement, the number of dimes is  [/tex] 8 \cdot x = 8x. [/tex]

Therefore, there are 8x + x = 9 coins in total. To find what x is, we need to solve the equation 9x = 18. This can be done by dividing both sides by 9 which gives x=2. Plugging these values in tells us that there are 2  nickels and 16 dimes. (Test it out!) Thus, the nickels are worth 2 \cdot 5 = 10 cents and the dimes are worth 16 \cdot 10 = 160 cents, so in all, you have 10 + 160 = 170 cents which is $1.70.

Hope this helps :)

7 0
2 years ago
Let u = 14. What is the value of 4u?
77julia77 [94]

Answer: B 56

Step-by-step explanation:

3 0
4 years ago
Read 2 more answers
Please help with this!!!
EastWind [94]
A. x = -2 and y = -5

check:
x^2 - 9 = 0

B. x = 0 and y = -6

check:
x^2 - 6 = 0

C. x1 = 3, x2 = 5

check:
(x - 3)(x - 5) = 0

D. x1 = 0, x2 = 4

check:
x(x - 4) = 0
7 0
4 years ago
Draw and label a rectangle that has a lesser area than the area of a square that
n200080 [17]

Answer:

6u2

Step-by-step explanation:

6u2 is the units inside of the rectangle

6 0
3 years ago
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