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alekssr [168]
2 years ago
6

Item 4

Mathematics
2 answers:
Simora [160]2 years ago
5 0

Answer:

270 s

Step-by-step explanation:

4 minutes = 240s

add the other 30s

boom

BigorU [14]2 years ago
4 0
Sam biked for 270 s

60 x 4 = 240
240 + 30 = 270 s
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PLEASE HELP AND SHOW WORK SIMPLIFY THIS RADICAL
Yakvenalex [24]

Answer:

x^2 | y^25 |√187x

Step-by-step explanation:

First you simplify the equation then you factor 184 into its prime factors which is   184 = 23 • 23  

To simplify a square root, we extract factors which are squares, i.e., factors that are raised to an even exponent. Factors which will be extracted are: 4 = 22 Factors which will remain inside the root are: 46 = 2 • 23 To complete this part of the simplification we take the square root of the factors which are to be extracted. We do this by dividing their exponents by 2: 2 = 2 At the end of this step the partly simplified SQRT looks like this: 2 • sqrt (46x5y50)  Rules for simplifing variables which may be raised to a power: (1) variables with no exponent stay inside the radical (2) variables raised to power 1 or (-1) stay inside the radical (3) variables raised to an even exponent: Half the exponent taken out, nothing remains inside the radical. examples: (3.1) sqrt(x8)=x4 (3.2) sqrt(x-6)=x-3 (4) variables raised to an odd exponent which is  >2  or  <(-2) , examples: (4.1) sqrt(x5)=x2•sqrt(x) (4.2) sqrt(x-7)=x-3•sqrt(x-1) Applying these rules to our case we find out that SQRT(x5y50) = x2y25 • SQRT(x) sqrt (184x5y50) = 2 x2y25 • sqrt(46x)  

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8 0
2 years ago
Which of the following is/are cube(s) of even number<br> pls help fast :( :(
Andre45 [30]

Answer:

write the question properly and <u>completely</u> then only you will get correct answer

5 0
3 years ago
12. Car insurance that pays for your injuries when you're in an accident in your car is
AURORKA [14]
C. Medical expenses

When you find yourself in an accident your MEDICAL expenses are paid by the car insurance.
7 0
3 years ago
A basketball court is 150 feet from the net to net how many yards make up a basketball court
Snezhnost [94]

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6 0
3 years ago
Please help me. I need how to do the problem too
MatroZZZ [7]

Answer: Choice A.  (8, 4)

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

Explanation:

Because x = 2y, we can replace every copy of x with 2y

Let's do so in the second equation

3x - 4y = 8

3(x) - 4y = 8

3(2y) - 4y = 8 .... x replaced with 2y; now let's isolate y

6y - 4y = 8

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Use this y value to find x

x = 2y

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So we have x = 8 and y = 4 pair together to get the answer (x,y) = (8, 4) which is choice A.

5 0
3 years ago
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