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inn [45]
3 years ago
6

if the temperature for the past 8 hours has been changing at a rate of -1.5 degrees each hour and it is currently 5 degrees the

temperature 4 hours ago was
Mathematics
1 answer:
bagirrra123 [75]3 years ago
4 0
4 times 1.5=6 plus 5= 11 degrees 4 hours ago
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The greatest common factor of 4k, 18k4, and 12 is 2.

Answer A 2

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Trình bày nội dung của phương pháp bình phương bé nhất. Phân biệt phương pháp
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Find the missing value.<br> Hint: Use the number line to find the missing value<br> -3 = -7
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4 0
3 years ago
Given that f(x) = 3x ^ 3 + x - 1 evaluate the function f(- 2)
Whitepunk [10]

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4 0
3 years ago
Given the equation f(x) = (x 3)2 – 8, fill in the blanks:axis of symmetry: x =a1vertex:(a2, a3)number of real solutions: a4
Paha777 [63]
F ( x ) = ( x + 3 )² - 8 = x² + 6 x + 9 - 8 = x² + 6 x + 1
For the quadratic function:
Axis of symmetry is: x = -b/ 2 a, where: a = 1, b = 6 ( because it it in the form:
y = a x² + b x + c ).
Therefore: x = -6 / 2 = -3.
f ( - 3 ) = ( - 3 + 3 )² - 8 = 0 - 8 =  - 8
And D = b² - 4 a c = 6² - 4 * 1 * 1 = 36 - 4 = 32 ( greater than 0 ). It means that there are 2 real solutions.
Answer: x = - 3 , vertex : ( - 3 , - 8 ), Number of real solutions : 2.
a 1 = - 3 ,  a 2 = - 3 , a 3 = - 8 ,  a 4 = 2. 

3 0
3 years ago
Read 2 more answers
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