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1. ### Write the equation of an ellipse centered at the origin with foci at (0, -3) and (0, 3) and a major axis of 10.?

...k±a)  length of major axis = 2a  co-vertices (h±b,k)  foci (h,k±c), c² = a²-b² Apply your given information...

4 Answers · Science & Mathematics · 29/05/2019

2. ### Chemistry Question: Convert 124.3 Fahrenheit to Celsius and to Kelvin?

...2 = C 51 + 0.2777777777.... = C 51.2777777.... = C 51.28 = C K = C + 273.15 K = 51.27777.... + 273.15 K = 324.4277777.... K = 324.4

3 Answers · Science & Mathematics · 24/06/2019

3. ### Label the foci, the major vertices, and the minor vertices. (−1)^2/49 +(+3)^2/169 =1?

... an ellipse with major axis parallel to the y-axis, the foci are (h, k - c) and (h, k + c) where c = √(b² - a²) In this case, c = √(...

1 Answers · Education & Reference · 13/05/2019

4. ### A jet is flying at a speed of 356 m/s in an air temperature of 25 C. What is the Mach number of the jet?

...286 m²/s²/K for air T = absolute temperature (273.15 K + °C) = 298.15 K v(s) = speed of sound = to be determined v...

3 Answers · Science & Mathematics · 24/08/2019

5. ### Gas Laws (Chemistry)?

... must be in an absolute temperature scale. Kelvin will do nicely. K = C + 273.15 P1V1 / T1 = P2V2 / T2 ............ combined...

2 Answers · Science & Mathematics · 26/06/2019

6. ### What are the vertices, covertices, and foci of the ellipse (x-5)^2/64 + (y-10)^2/100 = 1?

...k)  vertices (h,k±a)  co-vertices (h±b,k)  foci (h,k±c), c² = a²-b²   (y-10)²/10² + (x-5)²...

4 Answers · Science & Mathematics · 21/05/2019

7. ### How do I show that this sequence satisfies the given recurrence relation?

... that it's not true. Maybe you mistyped things? k c(k) 4c(k-1) 0 0 1 1 0 2 3 4 3 7 12 4 15 28 5 31 60

1 Answers · Science & Mathematics · 25/07/2019

8. ### If three doctors cure seven patients in five minutes, how long would it take for four doctors to cure three patients?

...it take 4 engineers to build 3 sheds". C = kDT k = C/(DT) = 7/(3*5) = 7/15 (Cures per Doctor per Minute...

4 Answers · Science & Mathematics · 27/10/2018

9. ### Physics problem!!?

The surplus of energy stored in the hotter body is received by the other , so that while one decreases its own temperature, the other increases by the same amount, being the two bodies equal in mass and material . ΔE = m*c...

1 Answers · Science & Mathematics · 18/04/2019

10. ### Chemistry-Rate Law Problem?

A) by comparing experiments 1 and 2, you see that doubling [H2] doubles the rate. So, the reaction is first order with respect to [H2]. By comparing reactions 1 and 3, you see that doubling...

1 Answers · Science & Mathematics · 08/02/2019