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3 years ago

Write in scientific notation: 0.0000378

Mathematics

2 answers:

timofeeve [1]3 years ago

5 0

Step-by-step explanation:

0.0000378 in scientific notation

3.78 * 10 ^ - 5

AlladinOne [14]3 years ago

3 0

Answer:

Step-by-step explanation:

$0.0000378=3.78*10^{-5}$

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-5+[-7] = Right answer only

BARSIC [14]

Answer:

-12

Step-by-step explanation:

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3 years ago

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Which of the following is an abstract noun? pants car guilt chair

Aneli [31]

Abstract nouns are things you (CAN’T) see, hear, taste, touch, or smell. So it would be guilt

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2 years ago

there are 10 cards in A box with number 1 to 10 marked on each of them what is the probability of getting a card with an odd num

Wittaler [7]

Answer:

the probability is 1/2

Step-by-step explanation:

there are 10 cards.

1,3,5,7, and 9 are all 5 odd numbers.

there are 5 numbers left.

2,4,6,8, and 10 are 5 even numbers.

half the cards are odd and the other half is even.

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3 years ago

Evaluate the function f(x) at the given numbers (correct to six decimal places). f(x) = x2 − 3x x2 − 9 , x = 3.1, 3.05, 3.01, 3.

Lostsunrise [7]

Answer:

Values of f(x) for different values of x.

Step-by-step explanation:

We are given the following function in the question:

$f(x) = \displaystyle\frac{x^2-3x}{x^2-9}$

We have to find the value of given function at the following x.

x = 3.1, 3.05, 3.01, 3.001, 3.0001, 2.9, 2.95, 2.99, 2.999, 2.9999

$f(x) = \displaystyle\frac{x^2-3x}{x^2-9}\\\\f(3.1) = \frac{(3.1)^2-3(3.1)}{(3.1)^2-9} = 0.508197\\\\f(3.05) = \frac{(3.05)^2-3(3.05)}{(3.05)^2-9} = 0.504132\\\\f(3.01) = \frac{(3.01)^2-3(3.01)}{(3.01)^2-9} = 0.500832\\\\f(3.001) = \frac{(3.001)^2-3(3.001)}{(3.001)^2-9} = 0.500083\\\\f(3.0001) = \frac{(3.0001)^2-3(3.0001)}{(3.0001)^2-9} = 0.500008\\\\f(2.9) = \frac{(2.9)^2-3(2.9)}{(2.9)^2-9} = 0.4915254\\\\f(2.95) = \frac{(2.95)^2-3(2.95)}{(2.95)^2-9} =0.495798\\\\$

$f(2.99) = \displaystyle\frac{(2.99)^2-3(2.99)}{(2.99)^2-9} =0.499165\\\\f(2.999) = \displaystyle\frac{(2.999)^2-3(2.999)}{(2.999)^2-9} = 0.499917\\\\f(2.9999) = \displaystyle\frac{(2.9999)^2-3(2.9999)}{(2.9999)^2-9} =0.499991$

6 0

3 years ago

A ball is thrown in the air from a ledge. Its height in feet is represented by f(x) = –16(x2 – 5x – 6), where x is the number of

Oduvanchick [21]

The ball takes 6 seconds to reach the ground.

Explanation

Height of the ball after $x$ seconds is represented by....

$f(x)= -16(x^2 -5x-6)$

The height of the ball is 0 feet when it hits the ground. So, for finding the number of second the ball takes to reach the ground, we will just plug $f(x)=0$ into the above equation and then solve for $x$ .

Thus...

$0=-16(x^2-5x-6)\\ \\ x^2-5x-6=0\\ \\ (x-6)(x+1)=0$

Using zero-product property....

$x-6=0\\ x=6$

and

$x+1=0\\ x=-1$ (Negative value is ignored as time can't be negative)

So, the ball takes 6 seconds to reach the ground.

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3 years ago

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