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mestny [16]
3 years ago
15

The quadratic function f(x)=-5x^2+5 does the parabola open up or down

Mathematics
1 answer:
yulyashka [42]3 years ago
5 0
It opens down.
Since the beginning number -5x^2 is negative, it will open down.
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1. y=900(1.27)^x
Sophie [7]

Answer:

The initial value is 900

It is experiencing exponential growth by 27%

Step-by-step explanation:

Exponential functions are in the form y=a(b)^x, where a is the initial value, b is the multiplier, and x is the input, such as how many years past a certain date.

Exponential growth is when the multiplier is above 1.00, or above 100%, because b is determined by 1 + r if you have exponential growth, or 1 - r if you have exponential decay. You will never use negatives with exponential decay.

7 0
2 years ago
A dragon likes to eat red peppers and green peppers because they help him breathe fire. If the dragon eats 2 red peppers, he can
N76 [4]

it's 45

Step-by-step explanation:

Okay, so if 2 peppers is 25 meters long, you just divide 25 by 2 to get how many peppers the dragon breathes as  1 pepper. So then you get 12.5, And if you do that with the green peppers, you get 1.5. So, the dragon ate 3 green peppers, so it's 12.5 x 3 , aka. 12.5+12.5+12.5. That's  37.5, and if you do 1.5x5 for the green peppers, it's 7.5, And now you add 37.5+7.5, and you get 45.

4 0
2 years ago
Does anyone know 1/4 x ? = -2?
SSSSS [86.1K]

Answer:

-8

Step-by-step explanation:

1/4 x = -2

You want the value of x. x is being multiplied by 1/4. To get x alone on the left side, you need to divide both sides by 1/4. Dividing by 1/4 is the same as multiplying by 4.

Multiply both sides of the equation by 4.

4 * 1/4 x = -2 * 4

4 * 1/4 = 1, so on the left side you get 1x which is just x.

x = 8

Answer: -8

8 0
3 years ago
Read 2 more answers
9: The perimeter of a rectangle is 46 m. The width of the rectangle is 2 more than half the length. Find the length and the widt
natima [27]

Answer:

our width is 9 and our length is 14

Step-by-step explanation:

5 0
2 years ago
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Charra [1.4K]

Step-by-step explanation:

2x + 3y = 2

x + 6y = 4

2(4-6y) + 3y = 2

x= 4- 6y

8-12y + 3y = 2

x= 4- 6y

-9y =-6 =) y = 2/3

x= 4- 6*2/3 = 0

A.  x = 0, y = 2/3

4 0
3 years ago
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