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3 years ago

What is the gradient of the blue line?? Mathswatch

Mathematics

2 answers:

kirill [66]3 years ago

6 0

<em> $answer \\ - 5 \\ please \: see \: the \: attached \: picture \: for \: full \: solution \\ hope \: it \: helps$ </em>

yaroslaw [1]3 years ago

3 0

Answer:

gradient = -5

Step-by-step explanation:

A line passes (x1, y1) and (x2, y2) has the gradient (slope) which is calculated by:

gradient = (y2-y1)/(x2-x1)

As shown in picture, this blue line passes (-1, 0) and (0, -5)

=> gradient = (-5 - 0)/(0 - -1) = -5/1 = -5

Hope this helps!

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3 years ago

Solve the system below by substitution. Give your answer as an ordered pair.

bearhunter [10]

Work:
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3 years ago

Four couples at a dinner party play a board game after the meal. They decide to play as teams of two and to select the teams ran

Llana [10]

Answer:

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Step-by-step explanation:

We are given that there are 4 couples i.e. 8 people

They decide to play as teams of two and to select the teams randomly

Now we are asked How likely is it that every person will be teamed with someone other than the person he or she came to the party with

For people 1 , there are 6 options for pairing Since he or she cannot pair with his /her own partner

So, Choices For people 1 will be 6 person

So, Probability that person 1 will be teamed with someone other than the person he or she came to the party with = $\frac{\text{No. of choices for Person 1}}{\text{Total no. of choices available}}=\frac{6}{7}$

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3 years ago