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Ugo [173]
3 years ago
9

Given the following equation of the hyperbola, what are the x-values of the vertices? x^2/4 - y^2/49 = 1 is it 2 and -2?

Mathematics
1 answer:
Jet001 [13]3 years ago
3 0

Answer:

  yes, ±2

Step-by-step explanation:

The x-intercepts are found by setting y=0 and solving for x:

  x^2/4 = 1

  x^2 = 4

  x = ±√4

  x = ±2

The x-values of interest are -2 and +2.

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Lucero wants to hang 3 paintings in her room. The widths of the paintings are 10 1/2 inches, 3 1/2 feet, 2 feet, and 2 3/4 inche
Marina86 [1]

Answer:

  7 ft 1 1/4 in

Step-by-step explanation:

The total width of 3 paintings and 2 spaces is ...

  (10.5 in) + (3 in) + (3 ft 6 in) + (3 in) + (2 ft 2 3/4 in)

  = (10.5 +3 +6 +3 +2.75) in + (3 +2) ft

  = 25.25 in + 5 ft = 1.25 in + 24 in + 5 ft

  = 7 ft 1 1/4 in

The total width of wall space needed for the paintings is 7 feet 1 1/4 inches.

_____

If two more 3-inch spaces are added, one on each end, then the total width is 7 feet 7 1/4 inches. The problem isn't clear about that, saying only that there are spaces between the paintings.

8 0
4 years ago
Please answer this question only if you know it!! 25 points and brainliest!!
rewona [7]

Answer:

D

Step-by-step explanation:

Take 1200+1300+850= 3350

Money per week

--------------------------------------

8*10*5= 400 $ per week

3350/400= 8.3

7 0
3 years ago
Read 2 more answers
The price of a watch was increased by 20% to £144. What was the price before the increase?
hammer [34]

Answer:

120 pounds

Step-by-step explanation:

Since the new cost is 144 pounds and this is 20% more,  this is 120% of the original price. Remember 100+20 = 120. To find the original price set up a proportion with these values:

\frac{144}{x}=\frac{120}{100}

Solve for the original price by cross multiplying numerator with denominator.

x(120) = 144(100)

120x = 14400

x= 120 pounds


6 0
4 years ago
If A = { a, b, c, d} and B = {b,c,d,e} Then find AnB {b,c,d}<br>​
vladimir1956 [14]

Answer:

AnB = ( b, c, d ) is the answer.

Hope this will help u

5 0
3 years ago
how do u do this! pls explain step by step i dont understand this at all. even photomath doesnt work for me. if u used a math ca
zheka24 [161]
X^3+2x^3-4x
I use
m a t h w a y for stuff like this
7 0
3 years ago
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