2 years ago

Which is equivalent to (-2 + 4i)(7 + 2i)?

Mathematics

1 answer:

MatroZZZ [7]2 years ago

4 0

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What is the rule for the translation graphed below?

lesya [120]

Answer:

(x,y) -> (x-4, y+2)

Step-by-step explanation:

it is translated 4 to the left and 2 up

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3 years ago

Molly read 50 out of the 200 pages in her fiction book. Joel is also reading a fiction book, but his book has 280 pages in total

katrin [286]

Answer:

$x = 70$

Step-by-step explanation:

Given

Molly: 50 out of 200

Joel: x out of 280

Required

Find x

Start by representing the giving parameters as ration

Molly= 50 : 200

Joel = x : 280

From the question, the ratios are equivalent. So,

$50 : 200 = x : 280$

Convert to fractions

$\frac{50}{200} = \frac{x}{280}$

Solve for x

$x = \frac{50}{200} * 280$

$x = \frac{1}{4} * 280$

$x = \frac{280}{4}$

$x = 70$

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2 years ago

Find the gradient of the line segment between the points (2,2) and (0,6).

Alexeev081 [22]

Answer:

slope-intercept formula -----> Y2-Y1/X2-X1

Step-by-step explanation:

X1 = 2 X2= 0

Y1 = 2 Y2=6

6-2/0-2= -2

G= -2

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2 years ago

I thought of a number, divided it by 1 1/2 , then added 2 1/2 to the result, then multiplied the sum by 1 2/3 . Then I subtracte

vekshin1

Answer:

Step-by-step explanation:

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3 years ago

Use substitution to solve each of the following pairs of simultaneous equations.

Ronch [10]

Answer:

I will go for a part the rest You can do by yourself

Step-by-step explanation:

Multiply the second equation to get same amount of x in both equations

2x=2-3y/2

multiply both equations by 2 to get rid of the fraction in second equation

4x+14y=34

4x=4-3y

subtract equation(2) from equation(1)

14y=30+3y

11y=30

y=30/11, x=-23/22

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3 years ago

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