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jeyben [28]
3 years ago
8

The following table shows the number of hours some students in two universities spend reading each week:

Mathematics
1 answer:
AleksandrR [38]3 years ago
4 0
They do not appear to be symmectric. they seem to line up well
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Write the equation of the line that passed through the points (-1,6) and (5,0)
lidiya [134]

Answer: y = -1x + 5

Step-by-step explanation:

1. Plug the coordinates into the slope formula (y2 - y1)/ (x2 - x1)

(0 - 6)/ (5 -(-1))

2. Solve for slope

-6/6

= -1

3. Plug the first coordinate and slope into the point slope form equation (y - y1) = slope(x - x1) to find the rest of the equation of the line

(y -(-1)) = -1( x - 6)

4. Solve for y

y + 1 = -1x + 6 -----> y = -1x + 5

7 0
3 years ago
2.5 m<br> 9 m<br> 1<br> 24 m<br> Work out the perimeter.
deff fn [24]

Step-by-step explanation:

thirty six point five(36.5)

7 0
2 years ago
Read 2 more answers
If you place a cup of 210 degree Fahrenheit coffee on a table in a room that is 68 degrees fareinheit, and ten minutes later, it
Lana71 [14]
Newton's Law of Cooling

Tf=Ts+(Ti-Ts)e^(-kt)   where Tf is temp at time t, Ts is temp of surroundings, Ti is temp of object/fluid.  So we need to find k first.

200=68+(210-68)e^(-10k)

132=142e^(-10k)

132/142=e^(-10k)

ln(132/142)=-10k

k=-ln(132/142)/10

k≈0.0073  so 

T(t)=68+142e^(-0.0073t)  so how long until it reaches 180°?

180=68+142e^(-0.0073t)

112=142e^(-0.0073t)

112/142=e^(-0.0073t)

ln(112/142)=-0.0073t

t= -ln(112/142)/(0.0073)

t≈32.51 minutes


8 0
3 years ago
Y = 2x + 3<br><br><br> y = 1/2 x – 3<br><br><br> y = –2x – 3<br><br><br> y = 1/2 x + 3
vodka [1.7K]

Answer:

y = 1/2 x + 3

Step-by-step explanation:

the positive 3 is the y intercept and the positive 1/2 is rise over run up-1 & 2 to the right

5 0
2 years ago
Marie mixes 20 liters of 12% acid solution with a 36% acid solution to make a 20% acid solution. How many liters of 36% solution
svet-max [94.6K]
She used 10 liters of the 36% solution.
6 0
3 years ago
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