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MatroZZZ [7]
3 years ago
13

I NEED HELP :( WILL MARK BRAINLIEST!! NEED HELP ASAP

Mathematics
1 answer:
Elden [556K]3 years ago
6 0

Answer:

the answer is B

Step-by-step explanation:

The lowest point for Y is -1 therefore that's the first number and the highest point is 1 therefore thats the last number so naturally the range is -1≤Y≤1

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Which is the graph of f(x) = (x + 3)(x – 2)?
vodka [1.7K]
Looks like this
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4 0
3 years ago
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Derive the equation of the parabola with a focus at (−5, −5) and a directrix of y = 7
WARRIOR [948]

Answer: The equation of the parabola is (x+5)^2=-24(y-1).

Explanation:

It is given that the focus of the parabola is (-5,-5) and the directrix is y=7.

The standard form of the parabola is,

(x-h)^2=4p(y-k)

Where y=k-p is directrix and (h,k+p) is the focus.

Since focus is given,

(h,k+p)=(-5,-5)

On comparing,

h=-5

k+p=-5      .... (1)

The directrix is y=7.

k+p=7       .... (2)

Add equation (1) and (2),

2k=2

k=1

Put this value in (1).

p=-6

Put p= -6, h= -5 and k=1 in the standard form of the parabola.

(x+5)^2=4(-6)(y-1)

(x+5)^2=-24(y-1)

Therefore, the equation of parabola is (x+5)^2=-24(y-1).

8 0
3 years ago
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Which exponential function is represented by the graph?
Anna [14]

Answer:

Step-by-step explanation:

Let's solve this using our formula for exponential functions:

y=a(b)^x where a is the initial value and b is the growth/decay rate. We will fill that equation in with 2 of the coordinates on the graph and come up with the values for both a and b. (0, 3) and (1, 6):

3=a(b)^0. Anything raised to the power of 0 is 1, so that means that

a = 3. We will use that value along with the x and y from the second coordinate to solve for b:

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6 = 3b and

b = 2.

Our equation then is

y=3(2)^x, the third choice down.

8 0
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A sand dune stands 5 feet above sea level. The hill is eroding at a rate of 1 foot per 20 years. Let y represent the height of t
avanturin [10]
y = -1/2x + 5 should be your equation because it is 5 ft above sea level and its eroding, or going down, 1 ft per 20 years. So every year, the sand dune erodes 1/20 ft more.

Hope this helps!
4 0
3 years ago
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Please answer CORRECTLY !!!!!! Will mark Brainliest !!!!!!!!!!!!!!!!
kolbaska11 [484]

Answer:

4 amperes

Step-by-step explanation:

I graphed the function on the graph below to find the maximum value of c.

4 0
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