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QveST [7]
2 years ago
7

graph the parabola y equals negative x squared + 3 to graph a parabola plot the vertex and four additional points two on each si

de of the vertex then click on the graph icon
Mathematics
1 answer:
Nataliya [291]2 years ago
6 0

You don't have the graph icon here, so we'll have to graph this parabola without it.


Your parabola is y = -x^2 + 3., which resembles y = a(x-h)^2 + k. We can tell immediately that this parabola opens down and that the vertex is (0,3).


Plot (0,3). Besides being the vertex, this point is also the max. of the function.


Now calculate four more points. Choose four arbitrary x-values, such as {-2, 1, 4, 5} and find the y value for each one. Plot the resulting four points. Draw a smooth curve thru them, remembering (again) that the vertex is at (0,3) and that the parabola opens down.

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A parking lot has two entrances. Cars arrive at entrance I according to a Poisson distribution at an average of 3 per hour and a
olga_2 [115]

Answer:

P(X=3cars) = 0.052

P(X>3 cars) = 0.00638

Step-by-step explanation:

In total there are 7 cars per hour.

Using formulae for geometric Probability

P(X=3) = (7^3×e-7)/3! = 0.0521

P(X>3cars) = (7^2× e-7)/2! =

P(X>3) = 0.0128/2×1 =0.00638

7 0
2 years ago
How many ways can you arrange 10 numbers
kkurt [141]

Answer:

3628800

Step-by-step explanation:

There are 10 options for the first number.

That leaves 9 options for the second number.

That leaves 8 options for the third number.

So on and so forth.

The number of ways 10 numbers can be arranged is:

10×9×8×7×6×5×4×3×2×1

= 10!

= 3628800

8 0
3 years ago
Jonah earns $12.50 per hour as a marketing intern. If he works for 4.5 hours,how many dollars does he earn?
Margarita [4]
$56.25. Just take a calculator and write $12.50 times * 4.5 equals=.
5 0
2 years ago
What’s (X-4) (x+5)<br> I don’t get it someone help
Flauer [41]
You have to find out what x is because x is an imaginary number
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2 years ago
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miskamm [114]

5(x-2)+7=65-4(5x-8)

We move all terms to the left:

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We multiply parentheses

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We calculate terms in parentheses: -(65-4(5x-8)), so:

65-4(5x-8)

determiningTheFunctionDomain

-4(5x-8)+65

We multiply parentheses

-20x+32+65

We add all the numbers together, and all the variables

-20x+97

Back to the equation:

-(-20x+97)

We add all the numbers together, and all the variables

5x-(-20x+97)-3=0

We get rid of parentheses

5x+20x-97-3=0

We add all the numbers together, and all the variables

25x-100=0

We move all terms containing x to the left, all other terms to the right

25x=100

x=100/25

x=4

6 0
3 years ago
Read 2 more answers
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