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kotykmax [81]
4 years ago
13

1 train leaves from NYC heading towards LA at 100 mph. three hours later, a train leaves from LA heading towards NYC at 200 MPH.

Assume there's exactly 2000 miles between LA and NYC. When they meet, which train is closer to NYC?
Mathematics
1 answer:
Yuri [45]4 years ago
7 0
Both will be at same<span> distance from NYC when they meet.

Hope this helps.

</span>
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Which expression is equivalent to 4√24x∧6y÷ 128x∧4y∧5
LenKa [72]

Answer:

Option D.  \sqrt[4]{\frac{3x^{2}}{2y}}

Step-by-step explanation:

\sqrt[4]{\frac{24x^{6}y}{128x^{4}y^{5}}}

\sqrt[4]{(\frac{24}{128})\times (\frac{x^{6}}{x^{4}})\times (\frac{y}{y^{5}})}

= \sqrt[4]{(\frac{3}{16})\times {(x)^{6-4}}\times{(y)^{1-5}}}

= \sqrt[4]{(\frac{3}{16})\times x^{2}y^{-4}}

= \sqrt[4]{\frac{3}{(2)^{4}}\times x\times y^{-4}}

= \sqrt[4]{(3\times x^{2)\times (\frac{y^{-1}}{2})^{4}}}

= \frac{y^{-1}}{2}\sqrt[4]{3x^{2}}

= \sqrt[4]{\frac{3x^{2}}{2y}}

Option D. \sqrt[4]{\frac{3x^{2}}{2y}}  is the correct answer.

5 0
4 years ago
Is the least common multiple of a pair of numbers ever less than both numbers
nadezda [96]

well It never could be less than both numbers. the LCM of 2 numbers shd either be greater than the 2 numbers .... or the answer should be equal to either one of the numbers ...

lets see some examples to prove this conclusion:

now, lets find the LCM of 2 and 6 ... so if we do it ... we get the answer 6 .. which is ..as we said equal to one of the numbers

another example : 5 and 7 ... in this ... if we do it .. .we get the LCM as 37 ... which is greater than both the numbers

another case where both the numbers are same ....

where we need to find the LCM of 7 and 7 ... the answer will be 7 itself .....

7 0
3 years ago
I need help with #8. I need to use the quadratic formula. I have a calculator that is programmed for the quadratic formula so al
GuDViN [60]

Answer:

  x = 14

Step-by-step explanation:

Extend line AB so that it intersects ray CE at point G. Then angles BGC and BAD are "alternate interior angles", hence congruent.

The angle at B is exterior to triangle BCG, and is equal to the sum of the interior angles at C and G:

  138 = (376 -23x) +(x^2 -8x)

Subtracting 138 and collecting terms we have ...

  x^2 -31x +238 = 0

For your calculator, a=1, b=-31, c=238.

__

<em>Additional comment</em>

You will find that the solutions to this are x = {14, 17}. You will also find that angle BCE will have corresponding values of 54° and -15°. That is, the solution x=17 is "extraneous." It is a solution to the equation, but not to the problem.

For x=14, the marked angles are A = 84°, C = 54°.

8 0
4 years ago
A rectangular pool is 10 meters wide and 16 meters long.What is the area of the pool? What is asked?What are given?What is/are t
Morgarella [4.7K]
<h3>Answer:</h3>

A=160 m

<h3>Solution:</h3>
  • The formula for the Area of a rectangle is:
  • A=LW
  • In the above formula, L stands for the length and W stands for the width.
  • We are given:
  • L=16 m
  • W=10 m
  • We are asked to find the area of the rectangular pool.
  • The operation that we're going to use here is:
  • Multiplication.
  • Multiply:
  • A=16*10
  • A=160 m

Hope it helps.

Do comment if you have any query.

7 0
3 years ago
Read 2 more answers
2/9+4/2= what. solve the equation
Serjik [45]

Answer:

                 \bold{\dfrac29+\dfrac42=2\dfrac{2}{9}}

Step-by-step explanation:

\dfrac29+\dfrac42=\ ??\\\\\dfrac{2\cdot2}{9\cdot2}+\dfrac{4\cdot9}{2\cdot9}=\ ??\\\\\dfrac{4}{18}+\dfrac{36}{18}=\ ??\\\\\dfrac{40}{18}=\ ??\\\\\dfrac{2\cdot18+4}{18}=\ ??\\\\2\dfrac{4}{18}=\ ??\\\\2\dfrac{2}{9}=\ ??

4 0
3 years ago
Read 2 more answers
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