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Lena [83]
4 years ago
5

Please please help me:(

Mathematics
1 answer:
Marrrta [24]4 years ago
7 0

Answer

10

Step-by-step explanation:

bc thats 60

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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
What is the value of x in the diagram?    <br>A. 100<br>B. 120<br>C. 60<br>D. 50
Delicious77 [7]
The answer is b 120 . you add the angles
4 0
4 years ago
Read 2 more answers
Is my answer correct ??
Tpy6a [65]

The largest triangle and the triangle whose hypotenuse is x are similar. So:

(21 + 4)/x = x/4

Cross multiply:

x^2 = 100

x = 10

Your answer is incorrect. It should be 10, not 20.

5 0
3 years ago
Read 2 more answers
Xander takes a quiz worth 150 points. Each question is worth 30 points. Sketch a graph to show his score if he misses 1,2,3,4 or
DaniilM [7]

Answer:

If he missed five questions he can get a zero

Step-by-step explanation:

7 0
3 years ago
HEY! GOT A BUTT LOAD OF HW DUE TOMORROW PLS HELP BRAINLIEST ANSWER INCLUDED! Solve. How much pure acid is in 520 milliliters of
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540ml  with 12% solution

get 12% of 540

540 times 0.12 = 64.8 ml of pure acid

3 0
4 years ago
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