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nikdorinn [45]
2 years ago
11

What is the value of: 1/2^-2x^-3y^5 for x=2 and y=-4

Mathematics
1 answer:
belka [17]2 years ago
7 0
I am almost 100% sure that this is the correct answer -1/32. 
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Scientists studying dolphin echolocation simulate the projection of a bottlenose dolphin's clicking sounds using computer
lina2011 [118]

Step-by-step explanation:

The equation of a parabola with focus at (h, k) and the directrix y = p is given by the following formula:

(y - k)^2 = 4 * f * (x - h)

In this case, the focus is at the origin (0, 0) and the directrix is the line y = -1.3, so the equation representing the cross section of the reflector is:

y^2 = 4 * f * x

  = 4 * (-1.3) * x

  = -5.2x

The depth of the reflector is the distance from the vertex to the directrix. In this case, the vertex is at the origin, so the depth is simply the distance from the origin to the line y = -1.3. Since the directrix is a horizontal line, this distance is simply the absolute value of the y-coordinate of the line, which is 1.3 inches. Therefore, the depth of the reflector is approximately 1.3 inches.

4 0
1 year ago
A function has x-intercept 3 and y-intercept 2. Which of the functions below could be this function?
Sergeeva-Olga [200]

we are given

x-intercept is 3

so,

a=3

y-intercept is 2

b=2

now, we can intercept formula of line

\frac{x}{a} +\frac{y}{b}=1

now, we can plug

a=3 and b=2

\frac{x}{3} +\frac{y}{2}=1

now, we will get rid of denominators

so, we can multiply both sides by 6

6*\frac{x}{3} +6*\frac{y}{2}=6*1

2x +3y=6

we can also write it as

3y-6=-2x

so, option-D..................Answer

3 0
3 years ago
A certain number is multiplied by 4 and then 7 is added to the result then final answer is 39 find the number
Len [333]

4x + 7 = 39

    -7     -7

4x = 32

/4      /4


x = 8

The answer is 8.

7 0
3 years ago
Need help asap!! First gets brainliest!!
BartSMP [9]

Answer:

none i dont think

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
What is the solution for x in the equation 5(x+3)=5x + 3?
frosja888 [35]
The anwser is D no solution
8 0
3 years ago
Read 2 more answers
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