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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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A ball is thrown upward with an initial velocity of 96 ft/sec from a height 640 ft. Its height​ h, in​ feet, after t seconds is
olchik [2.2K]
Check the picture below.

thus is at 0 = -16t² + 96t +640,

\bf 0=-16t^2+96t+640\implies 0=-16(t^2-6t-40)
\\\\\\
0=t^2-6t-40\implies 0=(t-10)(t+4)\implies t=
\begin{cases}
\boxed{10}\\
-4
\end{cases}

well, clearly it can't be a negative value for the elapsed seconds, so it can't be -4.

5 0
4 years ago
5. Two unbiased dice are rolled. Calculate the probability that the sum of the two dice is:
IceJOKER [234]
The sample space has 36 possible pairs from 1,1 1,2 1,3 up to 6,5 and 6,6

(a). Three pairs add to 4 1,3 2,2 and 3,1 so P(4) = 3/36 = 1/12

(b). 6 pairs add to 7 so P(7) = 6/36 = 1/6

(c) 15 pairs add to less than 7 so P(<7) = 15/36 = 5/12
5 0
3 years ago
The members of a basketball team are selling shirts during spirit week. The cost is $15 for the design and $2.50 to print each t
zhannawk [14.2K]

Answer:

The slope is 2.5 and the y-intercept is 15.

Step-by-step explanation:

The slope is 2.5 and the y-intercept is 15.

m= slope

b= y-intercept

7 0
3 years ago
A drug trial is testing the effectiveness of two drugs. If 80 patients are given Drug A, 10 patients are given Drug B, and 20 pa
KiRa [710]

Answer:

The answer is 9/11.

Step-by-step explanation:

To find the answer you'd first add up how many patients you have:

80+10+20 = 110.

Now find out that how many patients are taking a real drug, which is represented by 80+10 = 90.

So, the probability of a patient NOT getting a placebo is 90/110

Simplified would be 9/11

Thus the answer is 9/11....

4 0
3 years ago
The sum of j and 47 is 5
Allisa [31]
Hi there! The answer is j = - 42.

In order to find the value of j, we need to set up and solve an equation.

The sum of j and 47 can be rewritten as
j + 47

The sum described above equals 5, so now we have all the information we know to set up the equation.
j + 47 = 5

Subtract 47 from both sides.
j + 47 - 47 = 5 - 47
j = - 42.

The answer is j = - 42.
~ Hope this helps you!

5 0
3 years ago
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