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Xelga [282]
3 years ago
12

(2x^2+7+10)-(x^2+2x-9)

Mathematics
1 answer:
svlad2 [7]3 years ago
6 0

Step-by-step explanation:

2 {x}^{2}  + 7 + 10 - ( {x}^{2} + 2x - 9) \\ 2 {x}^{2}   + 7 + 10 -  {x }^{2}  - 2x  + 9 \\  {x}^{2}  - 2x + 26

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A regression equation was estimated as = –100 + 0.5x. if x = 20,the predicted value of y is _____.
ratelena [41]
Any answer things? :|
5 0
3 years ago
Can some help me out with this EXTRA POINTS!!
Butoxors [25]

Answer: ≈ 185.73009

Step-by-step explanation:

area of square: length^{2}

area of circle: \frac{radius^{2} * \pi }{y}

length: 15

radius = diameter/2

radius: 5

area of square - area of circle =  area between square and circle:

15^{2} - \frac{5^{2} * \pi }{2} = 225 - \frac{25\pi}{2} ≈ 185.73009

hope it helps!

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8 0
2 years ago
How do you write 18 tens in standard form
Liula [17]
1800 because the 18 cant fit in the tens
7 0
3 years ago
The weight of oranges growing in an orchard is normally distributed with a mean weight of 3.5 oz. and a standard deviation of 0.
Andreas93 [3]

Answer:

(3 oz ; 4oz)

Step-by-step explanation:

Given that :

Mean = 3.5 oz

Standard deviation = 0.5 oz

According to the empirical rule ; 68% is 1 standard deviation from the mean.

Hence, the interval that would represent the middle 68% will be:

(3.5 oz - 0.5 oz) ; (3.5 oz + 0.5oz)

(3 oz ; 4oz)

7 0
3 years ago
Please help me if you do thanks so much
azamat

Answer:

the answer would be 6 x 4 x 9 x 5 x 2

6 0
3 years ago
Read 2 more answers
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