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faust18 [17]
3 years ago
13

the probabilities of different events are listed in the table getting struck by lightning won out of 500,000 rating on Wednesday

3 out of 10 sun rising 1 cafeteria serving pizza 1/5 select all the statements that are true and getting struck by lightning almost never occurs sometimes it rains on Wednesday the sun always rises in the cafeteria almost never serves pizza ​
Mathematics
1 answer:
m_a_m_a [10]3 years ago
7 0

Answer:

Lightning struck the electrical lines, so the power went out.

Step-by-step explanation:

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determine the base, b, of the exponential model. Is the base a growth or decay factor? a. b is 0.6394; It is a growth factor. b.
Kazeer [188]
An exponential model can be described by the function
f(x) = a(b)^x
where: a is the initial population or the starting number, b is the base and x is the number of periods elapsed.

When the base of an exponential model is greater than 1 it is called a growth factor, but when it is less than 1 it is called a decay factor.

Given the exponential model
n=20.5(0.6394)^t
n is the final output of the exponential model, 20.5 is the starting number, 0.6394 is the base and t is the number of periods/time elapsed.

Here, the base is 0.6394 which is less than 1, hence a decay factor.

Therefore, <span>the base, b, of the exponential model is 0.6394; It is a decay factor.</span>
8 0
3 years ago
The principal represents an amount of money deposited in a savings account subject to compound interest at the given rate.
Stella [2.4K]
The answer is gonna be. = 607
8 0
3 years ago
(8x2 + 5x – 9) - (3x2 – 5x + 1) = ?
Svetach [21]

Answer:

10x

Step-by-step explanation:

7 0
3 years ago
Sammy and david were selling water bottles to raise money for new football uniforms. Sammy sold 5 bottles for every 3 water bott
sergeinik [125]
X=number of bottles sold by Sammy.
y=number of bottles sold by David.
We can suggest the following system of equations:

x/y=5/3
x+y=160

We solve the system of equations by substitution method.

x+y=160        ⇒y=160-x

x/(160-x)=5/3
3x=5(160-x)
3x=800-5x
3x+5x=800
8x=800
x=800/8
x=100

y=160-x
y=160-100
y=60

answer: Sammy sold 100 bottles and David sold 60 bottles.

other method.
5x=bottles sold by Sammy
3x=bottles sold by David.

We can suggest the following equation:
5x+3x=160
8x=160
x=160/8
x=20

bottles sold by Sammy: 5x=5(20)=100
bottles sold by David:  3x=3(20)=60

Answer:Sammy sold 100 bottles and David sold 60 bottles.
3 0
3 years ago
The area of the triangle when x = 2 is 14. Which equation can be used to represent the area of the triangle, A(x)? A(x) = 2(f ∙
Lisa [10]

The equation that can be used to represent the area of the triangle is A(x) = 0.5(f ∙ g)(x) ⇒ 2nd answer

Step-by-step explanation:

The formula of the area of a triangle is A = \frac{1}{2} b h, where

  • b is the length of the base of the triangle
  • h is the length of the height of the triangle

∵ The area of the triangle when x = 2 is 14

∴ The base and the height of the triangle are functions of x

Assume that the length of the base of the triangle is represented by f(x) and the length of the height of the triangle is represented by g(x)

∵ A = = \frac{1}{2} b h

∵ b = f(x)

∵ h = g(x)

- Substitute b by f(x) and h by g(x) in the rule and replace A by

   A(x) because the area of the triangle is a function of x

∴ A(x) = \frac{1}{2} f(x) . g(x)

∵ f(x) . g(x) can be written as (f . g)(x)

∴ A = \frac{1}{2} (f . g)(x)

∵  \frac{1}{2}  = 0.5

∴ A = 0.5(f . g)(x)

The equation that can be used to represent the area of the triangle is A(x) = 0.5(f ∙ g)(x)

Learn more:

You can learn more about the functions in brainly.com/question/2645523

#LearnwithBrainly

4 0
3 years ago
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