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3 years ago

5

Write 8.34* 10^4 in standard from

2 answers:

Kamila [148]3 years ago

7 0

Answer:

83,400

Step-by-step explanation:

Just carry the decimal point over to the right 4 places.

Musya8 [376]3 years ago

7 0

Answer:

The standard form of this equation would be 83,400

Step-by-step explanation:

When changing something from scientific notation to standard form, you simply move the decimal place to the right by the number in the exponent. Since it is a 4, we move it two places to the end of the number and then add two 0s for the two more remaining.

83,400

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Use the given pair of functions to find and simplify expressions for the following functions and state the domain of each using

Tamiku [17]

Answer:

Given functions,

$f(x) = 3 - x^2$

$g(x) = \sqrt{x}+1$

Since, by the compositions of functions,

1. (g◦f)(x) = g(f(x))

$=g(3-x^2)$

$=\sqrt{3-x^2}+1$

Since, (g◦f) is defined,

If 3 - x² ≥ 0

⇒ 3 ≥ x²

⇒ -√3 ≤ x ≤ √3

Thus, Domain = [-√3, √3]

2. (f◦g)(x) = f(g(x))

$=f(\sqrt{x}+1)$

$=3-(\sqrt{x}+1)^2$

Since, (g◦f) is defined,

If x ≥ 0

Thus, Domain = [0, ∞)

3. (f◦f)(x) = f(f(x))

$=f(3-x^2)$

$=3-(3-x^2)^2$

$=3-9-x^4+6x^2$

$=-6+6x^2-x^4$

Since, (f◦f) is a polynomial,

We know that,

A polynomial is defined for all real value of x,

Thus, Domain = (-∞, ∞)

8 0

3 years ago

What is x^2+3x-28 factored

kap26 [50]

Answer: x^(2)-3x-28=0

Step-by-step explanation:

4 0

3 years ago

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100+100 omg this is so tricky ooooo

amm1812

Answer:

200

Step-by-step explanation:

100+

100

-----

200

8 0

3 years ago

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Write and simplify a multiplication expression to represent 5^4

Viktor [21]

Answer:

Step-by-step explanation:

5 * 5 * 5 * 5

= 625

6 0

3 years ago

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A dealer mixes 120 liters of milk containing 5% water with 80 liters of milk containing 10 % water. the percentage of water in t

timurjin [86]

9514 1404 393

Answer:

7%

Step-by-step explanation:

Let x represent the percentage of water in the mix. The amount of water in the mix is ...

5%·120 +10%·80 = x·(120 +80)

14/200 = x = 7% . . . . . . . . . . . . . . simplify, divide by 200

The percentage of water in the mixture is 7%.

7 0

3 years ago