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Elenna [48]
3 years ago
14

Help me please and thank you

Mathematics
1 answer:
MrRa [10]3 years ago
7 0

B because when you combine all of those terms, x^4 + 7x^4, and 3x^3 - 2x^3, and x^2 - 5x^2, and x - x, and 1 you get 8x^4 + x^3 - 4x^2 + 1.

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Lubov Fominskaja [6]
The answer is x = 10
6 0
3 years ago
Please help me I really need help
Murljashka [212]

Answer:

x  = 77 degrees

Step-by-step explanation:

angle x  =  (76 + 78)/2 =   154/2 = 77 degrees

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A ray is a portion of a line that begins at a point and extends endlessly in one direction.
viva [34]

Answer: T

Step-by-step explanation:

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The following time series shows the sales of a clothing store over a 10-week period. Compute the mean square error (MSE) for a 4
Alenkasestr [34]

Answer:

7.67

Step-by-step explanation:

Given the data :

Week_sales_Forecast ___|error|_ |error|²

1 _____15

2 ____ 16

3 ____ 19

4 ____ 18

5 ____ 19 ____ 17 _______ 2____4

6 ____ 20 ___ 18 ________2____4

7 ____ 19 ____19 ________0____0

8 ___ 22 ____ 19 ________3____9

9 ___ 15 ____ 20 ________5___ 25

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Mean squared error :

(4 + 4 + 0 + 9 + 25 + 4) / 6

= 46 / 6

= 7.666

= 7.67

8 0
3 years ago
Read 2 more answers
Wendy needs to purchase 44 vases, which cost $3 each, and flowers for the vases, which cost $2 each. She has $308 to spend on he
kirill [66]

Answer: a

Step-by-step explanation:

44 times 3 =$132   for vases

x it is flowers, the price of one flower is $2

2x +132 must be  less or equal 308

4 0
3 years ago
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