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2 years ago

Multiply (2 – 7i)(–1 + 4i).

Mathematics

1 answer:

azamat2 years ago

5 0

$(2 - 7i)(-1 + 4i)=-2+8i+7i+28=26+15i$

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Select the correct answer from each drop-down menu. if f(x)=x^2+2x-3 and g(x)=x^2-9, find (f/g)(4) and (f+g)(4).

Nataly_w [17]

Answer:

(f/g)(4) = 3

(f + g)(4) = 28

Step-by-step explanation:

(f/g) = $\frac{x^2+2x-3}{x^2-9}$

(f + g) = $2x^2 + 2x -12$

Simply plug in 4 for x in both equations to find you answer!

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2 years ago

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Xelga [282]

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2 years ago

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2 years ago

The probability distribution for a game is shown in the table below.

nydimaria [60]

Given:

It is given that

Probability of winning $ 0 = $\frac{3}{10}$

Probability of winning $ 100 = $\frac{1}{5}$

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Explanation:

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So,

Probability of not winning a cash prize

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Therefore,

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2 years ago

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KIM [24]

Answer:

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sorry I don't know how to make the less than or equal to sign

Step-by-step explanation:

he can buy X amount of gumballs if he buys Y amount of jawbreakers and that will be less than or equal to $3

to graph, you must plug the number 0 into the X spot and solve.

0.5(0) +0.3y >= 3

next plug in for Y

0.5x+0.3(0) >= 3

plot these two points on the graph and draw a line through them

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2 years ago