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dimaraw [331]
3 years ago
5

2 (4x - 1 ) = 8x -1. Is it one solution no solution or infintely

Mathematics
1 answer:
Alborosie3 years ago
6 0

Answer:

one solution

Step-by-step explanation:

2(4x-1) = 8x -1

8x -1 = 8x-1

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...................................................................
Genrish500 [490]

Answer:

12 cm

Step-by-step explanation:

The Pythagorean Theorem is as follows:

a^{2} +b^{2} =c^{2}

A and B represent the side lengths (legs) and C represents the hypotenuse.

The length of one leg equals 5cm. (This can be represented by either a or b)

The hypotenuse equals 13 cm.

Plug these into the equation from above:

a^{2} + (5^{2}) = (13^{2})

Solve for the other leg:

   a^{2} + 25 = 169                          Square what's in the parentheses from above

a^{2} = 144\\                                  Subtract 25 from 169

\sqrt{a^{2} } = \sqrt{144}                            Square root both sides

a = 12 cm                        

Thus, the length of the other leg is 12 cm.

Let's check our answer:

12^{2} +5^{2} =13^{2}                        Square everything

144 + 25 = 169                      Add

169 = 169

Because both sides are equal it means that 12 cm is the correct answer.

Hope this helps!!

3 0
2 years ago
What is the distance between A and B? Round your answer to the nearest tenth.
poizon [28]
\bf ~~~~~~~~~~~~\textit{distance between 2 points}
\\\\
A(\stackrel{x_1}{-1}~,~\stackrel{y_1}{5})\qquad 
B(\stackrel{x_2}{4}~,~\stackrel{y_2}{1})\qquad \qquad 
%  distance value
d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2}
\\\\\\
AB=\sqrt{[4-(-1)]^2+[1-5]^2}\implies AB=\sqrt{(4+1)^2+(1-5)^2}
\\\\\\
AB=\sqrt{5^2+(-4)^2}\implies AB=\sqrt{41}
4 0
3 years ago
In a study, the sample is chosen by pulling 50 names from a hat What is the sampling method?
Irina18 [472]

Answer:Simple random sample

Step-by-step explanation:

A simple random sample is a subset of a statistical population in which each member of the subset has an equal probability of being chosen. A simple random sample is meant to be an unbiased representation of a group.

NOTE:

No easier method exists to extract a research sample from a larger population than simple random sampling. Selecting subjects completely at random from the larger population also yields a sample that is representative of the group being studied.

6 0
3 years ago
Wering a one-step expression for a real-world situation
Crazy boy [7]

Answer:

4d (the variable is usually x, though).

Step-by-step explanation:

Because 4 x the amount of fish in each tank = total amount of fish

8 0
3 years ago
For every 5 coins Cameron gets, she gives 2 coins to her brother Frankie. If Cameron has 9 coins, how many does Frankie have?
vredina [299]
6 coins because cameron gets five coins for three days and subtrack two from the three days and get 6 conis
4 0
3 years ago
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