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Nadya [2.5K]
3 years ago
15

PLZ HLP ME I BEG!!! 13 POINTS 1. During a trip, Amy had to take two different trains. Her first train traveled for 3hrs and the

second train traveled for 4hrs Combined, the trains traveled 625 miles If the equation 3m + 4n = 625 represents this situation, which statements are true regarding this equation? select two that apply a. The variable m in the equation represents the speed of the second train. b. The variable n in the equation represents the speed of the first train. c. The variable m in the equation represents the speed of the first train. d. The variable n in the equation represents the number of hours Amy traveled on the second train. e. The variable m in the equation represents the number of hours Amy traveled on the first train. f. The variable n in the equation represents the speed of the second train. 2. What is the point-slope form of the equation for the line with a slope of −2 that passes through the point (4,−6)? a. y+6=−2(x−4) b. y−4=−2(x+6) c. y=−2x−6 d. y−6=−2(x+4) 3. Examine the following table that represents some points on a line. x | -6, -4, 6 y | -10, -9, -4 Which equations in point-slope form represent this line? Select all that apply. a. y+9=1/2(x+4) b. y+4=1/2(x−6) c. y+10=1/2(x+6) d. y+10=2(x+6) e. y+4=2(x−6) f. y−9=2(x−4)
Mathematics
1 answer:
Wewaii [24]3 years ago
6 0
I’m pretty sure it’s c and d
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Answer:

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Amanda exercised for 10 minutes every day in the first week, 20 minutes in the second week, 30 minutes in the third week, and 40
Misha Larkins [42]
                  Amanda           Billy
1st week       10                   5
2nd week      20                  10 
3rd week       30                  20
4th week       40                  40
<span>
A) Amanda's method is linear because the number of minutes increased by an equal number every week.</span>
common difference is 10.
1st week      0 + 10 = 10
2nd week   10 + 10 = 20
3rd week    20 + 10 = 30
4th week    30 + 10 = 40

Billy's method is exponential:
5(2)^x

1st week   5(2⁰) = 5(1) = 5
2nd week  5(2¹) = 5(2) = 10
3rd week   5(2²) = 5(4) = 20
4th week   5(2³) = 5(8) = 40
8 0
3 years ago
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Wittaler [7]
<h3>Two Answers: choice C, choice D</h3>

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andre [41]

Answer:

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Step-by-step explanation:

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The next step is to click the Add chart element feature and insert an exponential trend line to the scatter plot ensuring the display equation on chart is checked.

The exponential regression equation for the data set is given as;

y=12.321e^{-0.464x}

To find the missing y value, we simply substitute x with 2 in the regression equation obtained;

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5 0
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lidiya [134]

"An angle that forms a linear pair with one of the interior angle the triangle" is the best definition of an exterior angle of a triangle.

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4 0
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