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yulyashka [42]
3 years ago
11

A rope is 3a +6 m long and is attached to another rope of length 2a-7 m find the total length​

Mathematics
1 answer:
allochka39001 [22]3 years ago
7 0

Answer:

= 5a - 1

Step-by-step explanation:

rope 1 = 3a + 6

rope 2 = 2a - 7

total length = 3a + 6 + 2a - 7

                   = 3a +2a + 6 - 7

                   = 5a - 1

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A line that has a rise of -34 and a run of 20.
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Answer:

y=-1.7x-34

Step-by-step explanation:

An equation of a line is given y=mx+c, where m is the gradient or \frac{Rise}{Run}

The rise indicates the change in value of y (vertical change in the graph).

The run indicates the change in value of x (horizontal change in the graph).

Let point 1 of the graph be (x,y) = (0,-34) and point 2 be (x,y) = (20,0).

 m =\frac{Rise}{Run} \\  =\frac{-34}{20}\\  =-1.7

Substitute point 1 into the graph to get the constant c.

y=mx+c

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c=-34

∴ The equation of the line is, y=-1.7x-34

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NeTakaya

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-90+20= 5y-20+20

-70=-5y

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3 years ago
Poisson Distribution LEARNING OBJECTIVE: Calculate the probability of a poisson distribution. 3.00 The average number of bridge
ira [324]

Answer:

the required probability is 0.09

Option  a) 0.09 is the correct Answer.

Step-by-step explanation:

Given that;

mean μ  = 7  

x = 4

the probability of exactly 4 bridge construction projects taking place at one time in this state = ?

Using the Poisson probability formula;

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we substitute

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= 2.1894 / 24

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Option  a) 0.09 is the correct Answer.

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Step-by-step explanation:

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