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2 years ago

Write an equation in slope intercept form for: m = - 1 and b = 2

Mathematics

2 answers:

nalin [4]2 years ago

8 0

Y=-x+2

Explanation: Slope intercept form is: y=mx+b. Then you just substitute!

Hope this helps! :)

Sever21 [200]2 years ago

5 0

Answer:

y=-1x+2

y=-x+2

y=mx+b

substitute

you get y=-1x+2

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The length of a Train A is 480 m and it takes 2 minutes to cross a tunnel of length 1,320 m. The length of a Train B, which is s

nasty-shy [4]

Answer: 52.94

Step-by-step explanation:

Length of train A = 480m

Tunnel length = 1320m

Time taken to cross tunnel = 2 mins = 120sec

Length of train B = 420m

Train B is slower than train A

Difference between their speed = 18km/hr

18km/hr = (18×1000)/3600 = 5m/s

Speed of train A :

Speed = distance / time

Speed = 1320 / 120 = 11m/s

Therefore, speed of train B :

(11 - 5)m/s = 6m/s

Relative speed of the two trains is therefore;

(Speed of A + speed of B)

Note : they are moving in opposite direction

( 11 + 6)m/s = 17m/s

Therefore time taken to cross each other :

(Sum of the length of both trains / relative speed of the trains)

Time taken = (480m + 420m) / (17m/s)

Time taken = 900m / 17m/s

Time taken = 52.94s

4 0

2 years ago

35 61 63 69 49 46 52 32 34 50<br> what is the mode

egoroff_w [7]

Answer:

no mode

Step-by-step explanation:

Mode is the most common number shown therefore....

since there are no numbers repeated, the answer is no mode

3 0

3 years ago

Suppose y = 48 + 3(2n - 1) is an explicit representation of an arithmetic sequence for integer values n ≥ 1. Find the xth partia

omeli [17]

$a_n=48+3(2n-1)$

The formula of the sum of the arithmetic sequence:
$S_n=\dfrac{a_1+a__n}{2}\cdot n$
calculate:
$a_1=48+3(2\cdot1-1)=48+3=51$
substitute
$S_n=\dfrac{51+48+3(2n-1)}{2}\cdot n=\dfrac{99+6n-3}{2}\cdot n=\dfrac{96+6n}{2}\cdot n=3n^2+48n$
Your answer is:
$\boxed{f(x)=3x^2+48x}$

5 0

3 years ago

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In josh’s classroom the teacher has 625 pencils to pass out to 25 students. If the same number of pencils is given to each stude

stiv31 [10]

Answer: 25 pencils each

8 0

2 years ago

Read 2 more answers

Evaluate 5m2 for m=4

jolli1 [7]

If the question is 5m^2 the answer is 80. And if the question is 5m2 then it is 40