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ch4aika [34]
3 years ago
15

Which of the following systems of linear inequalities is represented by the solution graphed below?

Mathematics
1 answer:
nikdorinn [45]3 years ago
4 0
The answer to this question is option A.
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Which of the following is false for the hyperbola (x+5)^2/4^2 - (y-2)^2/3^2=1
disa [49]

Answer:

C)One of the vertices is (-10,2)

Step-by-step explanation:

Given the hyperbola: \dfrac{(x+5)^2}{4^2} -\dfrac{ (y-2)^2}{3^2} =1

The standard equation for a hyperbola with a horizontal transverse axis is:

\dfrac{(x-h)^2}{a^2} -\dfrac{ (y-k)^2}{b^2} =1 where the center is at (h, k).

For our given hyperbola, the center (h,k)=(-5,2)

Now:

c^2=a^2+b^2\\c^2=4^2+3^2\\c^2=25\\c=5

Since the center is at (-5,2), its foci (-c,0) and (c,0) are:

(-5-5,2) and (-5+5,2)= (-10,2) and (0,2)

Similarly, since the center is at (-5,2), its vertices, (-a,0) and (a,0) are:

(-5-4,2) and (-5+4,2)= (−9,2), (−1,2).

Therefore, the odd option is C.

3 0
3 years ago
Symify 9 to the 2 power / 9 to the 7 power
fenix001 [56]

9514 1404 393

Answer:

  1/9^5

Step-by-step explanation:

  \dfrac{9^2}{9^7}=\dfrac{9\cdot 9}{9\cdot 9\cdot 9\cdot 9\cdot 9\cdot 9\cdot 9}=\dfrac{1}{9\cdot 9\cdot 9\cdot 9\cdot 9}=\boxed{\dfrac{1}{9^5}}

_____

An exponent is an indicator of repeated multiplication. As you can see, factors in the numerator cancel those in the denominator, so the result is the difference of the exponents.

8 0
3 years ago
Mike and Mary were expecting 85 people at their wedding. The weather was very bad on the day of the wedding and 10 people were n
Vera_Pavlovna [14]

Answer:

75

Step-by-step explanation:

3 0
4 years ago
Read 2 more answers
Roes bushes cost $5 and tomato plant cost $2. Write an expression that represent the show the total cost for any number of rose
Anna [14]

<em><u>Expression that represent the show the total cost for any number of rose bushes and tomato plant is:</u></em>

Total\ cost = 5x + 2y

<em><u>Solution:</u></em>

Let "x" be the number of roses bush

Let "y" be the number of tomato plant

Cost of 1 rose bush = $ 5

Cost of 1 tomato plant = $ 2

To find: Expression that represent the show the total cost for any number of rose bushes and tomato plant

Total cost = number of roses bush x Cost of 1 rose bush + number of tomato plant x Cost of 1 tomato plant

Total\ cost = x \times 5 + y \times 2\\\\Total\ cost = 5x + 2y

Thus the expression is found where, x and y are the number of rose bush and tomoato plant bought respectively

7 0
4 years ago
Please help
djyliett [7]

Answer:

x+6<12

Step-by-step explanation:

Since it is going left from 6, we know that x must be less than 6

(if u need me to explain more I can)

8 0
3 years ago
Read 2 more answers
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