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sveta [45]
3 years ago
13

Please help simplify the expression (4x10^8) (8.2 x 10^-2​

Mathematics
1 answer:
ValentinkaMS [17]3 years ago
5 0

Answer:

32800000x

Step-by-step explanation:

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Ms. Bell's mathematics class consists of 12 sophomores, 8 juniors, and 9 seniors. How many different ways can Ms. Bell create a
shtirl [24]

Answer:

792

Step-by-step explanation:

It's a combination question. The order is of no consequence. Also the fact that there are juniors and seniors is not important either.

So the answer is

12C5

12!

====

(12 - 5)! * 5!

12 * 11 * 10 * 9 * 8

==============

5 * 4 * 3 * 2 * 1

792

7 0
3 years ago
Let the function f be defined as f(x)= 5x^2 - 7(4x+3). What is the value of f(3)
Katen [24]

Answer:

f(x) = -60 is your answer

Step-by-step explanation:

Plug in 3 for x

f(x) = 5x² - 7(4x + 3)

f(x) = 5(3²) - 7(4(3) + 3)

Follow PEMDAS. First, solve the parenthesis

3² = 9

4(3) + 3 = 12 + 3 = 15

f(x) = 5(9) - 7(15)

Multiply

f(x) = 45 - 105

Simplify. Subtract

f(x) = 45 - 105

f(x) = -60

f(x) = -60 is your answer

~

4 0
3 years ago
Determine the domain of {(1,-2), (-2,0), (-1,2), (1,3)}
I am Lyosha [343]

Answer:

{-2, -1, 1}

Step-by-step explanation:

Domain is a list of x values

=

{-2, -1, 1}

3 0
3 years ago
Surveys, observational studies, and experiments are examples of
svet-max [94.6K]

Answer: B data gathering

Step-by-step explanation:

all of those examples are examples of gathering data

7 0
3 years ago
2. Suppose there are 50 cats in a neighborhood. The ratio of cats to dogs is 2/1 . many dogs are in the neighborhood? (4 points)
Rus_ich [418]
Answer: 25 Dogs

Reason: If the ratio of cats to dogs is 2/1, there are 2 cats for every 1 dog. That would mean that the number of cats is double the number of dogs. 25 x 2 = 50
3 0
3 years ago
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