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soldier1979 [14.2K]
3 years ago
12

If r(x) = 3x – 1 and s(x) = 2x + 1, which expression is equivalent to (StartFraction r Over s EndFraction) (6)? StartFraction 3

(6) minus 1 Over 2 (6) + 1 EndFraction StartFraction (6) Over 2 (6) + 1 EndFraction StartFraction 36 minus 1 Over 26 + 1 EndFraction StartFraction (6) minus 1 Over (6) + 1 EndFraction

Mathematics
2 answers:
Gre4nikov [31]3 years ago
8 0

Answer:

its letter A on edgenuity

Step-by-step explanation:

hichkok12 [17]3 years ago
5 0

Answer:

Please check the answer whether it is correct or not :)

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Two passenger train, A and B, 450 km apart, star to move toward each other at the same time and meet after 2hours.
likoan [24]

Let v be the speed of train A, and let's set the origin in the initial position of train A. The equations of motion are

\begin{cases}s_A(t) = vt\\s_B(t) = -\dfrac{8}{7}vt+450\end{cases}

where s_A,\ s_B are the positions of trains A and B respectively, and t is the time in hours.

The two trains meet if and only if s_A=s_B, and we know that this happens after two hours, i.e. at t=2

\begin{cases}s_A(2) = 2v\\s_B(2) = -\dfrac{16}{7}v+450\end{cases}\implies 2v = -\dfrac{16}{7}v+450

Solving this equation for v we have

2v = -\dfrac{16}{7}v+450 \iff \dfrac{30}{7}v=450 \iff v=\dfrac{450\cdot 7}{30} = 105

So, train A is travelling at 105 km/h. This implies that train B travels at

105\cdot \dfrac{8}{7} = 15\cdot 8=120 \text{ km/h}

5 0
3 years ago
A car rental company charges $10 a day and 17 cents per mile to rent their cars. If the total charge for a 2-day rental were $61
borishaifa [10]

Answer:

245 miles driven.

Step-by-step explanation:

A car rental company charges $10 a day and 17 cents per mile to rent their cars. 17 cents = 0.17 dollars

Let x be the number of miles and y be the number of days

total change =0.17x  + 10y

Given total change is 61.65 and number of days = 2

plug in the values and find out the number of miles

61.65 = 0.17 x + 2(10)

61.65 = 0.17 x + 20

subtract 20 on both sides

41.65 = 0.17x

Divide by 0.17 on both sides

x = 245

245 miles driven.


7 0
3 years ago
Give the product in simplest form: (pic below)
stellarik [79]

Answer:

26/3

Step-by-step explanation:

First, you need to turn the fractions from mixed form to improper fractions.

3 1/4 x 2 2/3

13/4 x 8/3

13/4 x 8/3

= 26/3

4 0
2 years ago
I WILL GIVE BRAINLIEST TO WHOEVER IS CORRECT
makvit [3.9K]

Answer:

BC = 22

Step-by-step explanation:

<b = <c  given

we now know it is an isosceles triangle

therefore AC = AB

AC=AB

2x-24 = x-2

subtract x from each side

2x-x-24 = x-2-x

x-24 =-2

add 24 to each side

x-24+24 = -2+24

x = 22



side BC = x

BC = 22


6 0
3 years ago
Read 2 more answers
( Help ASAP )<br>What is the equation of the trend line?<br><br><br> N = ____ M + _____
raketka [301]
The first space is for the slope, which would be 2. The second is for the y-intercept, which is 110.

So if you fill those in, it would be N=2M+110
5 0
3 years ago
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