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jeka57 [31]
3 years ago
5

The first Russian space satellite was called Sputnik. It orbited earth at a speed of 29,000 kilometers per hour. How many hectom

eters did it travel in one day?
Mathematics
1 answer:
tamaranim1 [39]3 years ago
7 0
29,000 kph x 24 hours = 696,000 kilometers

696,000 km = 6,960,000 hectometers
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Monique bought a shirt for $22.80 during a 30% off sale. How much does the shirt cost when it is not on sale?
mojhsa [17]

Answer:

29.64

Step-by-step explanation:

First we multiply 0.3 with 22.8.This will give us 6.84 which is the 30% off.Now we add 22.80 and 6.84 and we will get our answer 29.64.

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3 years ago
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Four students are trying to determine what number must replace the question (x^2)^7=x^4*x^8 in order to make it true
tiny-mole [99]

Answer:

Joe is correct

Step-by-step explanation:

Given equation:

(x^2)^?=x^4 \cdot x^8

The exponent outside the bracket is a question mark and the students are trying to determine the value of the question mark.

For ease of answering, let y be the unknown number (question mark):

\implies (x^2)^y=x^4 \cdot x^8

First, simplify the equation by applying exponent rules to either side of the equation:

\textsf{Apply exponent rule} \quad (a^b)^c=a^{bc}\quad\textsf{to the left side}:

\implies (x^2)^y=x^4 \cdot x^8

\implies x^{2y}=x^4 \cdot x^8

\textsf{Apply exponent rule} \quad a^b \cdot a^c=a^{b+c} \quad \textsf{to the right side}:

\implies x^{2y}=x^4 \cdot x^8

\implies x^{2y}=x^{4+8}

\implies x^{2y}=x^{12}

Now, apply the exponent rule:

x^{f(x)}=x^{g(x)} \implies f(x)=g(x)

Therefore,

x^{2y}=x^{12}\implies 2y=12

Finally, solve for y:

\implies 2y=12

\implies 2y \div 2 = 12 \div 2

\implies y=6

Therefore, <u>Joe is correct</u> as the unknown number is 6.

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2 years ago
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steposvetlana [31]
28/40 is the final answer
6 0
3 years ago
The polynomial f(x) is written in factored form:
Valentin [98]

Answer:

F(x)=(x-3)(x+8)(x-11)=0

(x-3)=0, (x+8)=0, (x-11)=0

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X=11

6 0
2 years ago
pls help with this immediately!!!! i’ll be giving brainiest to those who provide the correct answer. if u leave a link, have fun
Norma-Jean [14]

Answer:

I belive it is Parellelogram

6 0
3 years ago
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