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dangina [55]
4 years ago
10

Find an equation in standard form for the hyperbola with vertices at (0, ±4) and foci at (0, ±5).

Mathematics
1 answer:
Zigmanuir [339]4 years ago
5 0

Answer:b

Step-by-step explanation: Cause I took the test

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Please Help!
svet-max [94.6K]
First car is x
second car is y
25x+30y=1550
x+y=55
Multiply the second equation by -25 for elimination method to cancel out x
-25x-25y=-1375
Add the two equations
5y=175
y=35
Plug this value into the second equation
x+35=55
x=20

Final answers:
First car=20 gallons
Second car=35 gallons
6 0
3 years ago
At what point does the terminal side of the angle 7π4 in standard position intersect the unit circle?
vova2212 [387]

Answer:

(2√2, −2√2)

Step-by-step explanation:

Took the test

6 0
3 years ago
Read 2 more answers
Jessica's age plus Mike's age is 20. Mike is 4 years younger than Jessica. How old is Mike?
sergiy2304 [10]

Answer:

5

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
In point estimation a. data from the population is used to estimate the population parameter b. data from the sample is used to
icang [17]

Answer:

Option B) data from the sample is used to estimate the population parameter                  

Step-by-step explanation:

Point estimation:

  • Its is the process of getting a point estimate from a sample that describes a population parameter in the best way.
  • We calculate the unknown population parameter with the help of a sample drawn from the population.
  • It is similar to interval estimation.
  • In interval estimation we obtain an interval in which the population parameter may lie but in point estimation we obtain a single value which is the best approximation of population parameter.

Thus, the correct answer is

Option B) data from the sample is used to estimate the population parameter

4 0
3 years ago
Uma secretária possui 6 camisas, 4 saias, e 3 pares de sapatos. Qual o número de maneiras distintas com que a secretária poderá
juin [17]

Answer:

72 maneiras

Step-by-step explanation:

O que acontecerá aqui é que um de cada tipo de roupa será selecionado.

Das 6 camisas, 1 será selecionada O número de maneiras pelas quais podemos fazer isso é 6C1 = 6

Das saias também, ela estará selecionando uma O número de maneiras que isso pode ser feito é 4C1 = 4

O terceiro é selecionar um par de sapatos de 3 e isso seria 3C1 = 3

assim o número de maneiras pelas quais ela pode fazer as seleções é 6 * 4 * 3 = 72 maneiras

6 0
3 years ago
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