2x + 7 + (3 – yli = -4 + 6 Find the values of x and y that make each equation true.

Mathematics

1 answer:

Naddik [55]2 years ago

5 0

Answer:

<h2>brainiest me</h2>

Step-by-step explanation:

(1) 5 + iy = x + i3 In order for complex numbers to be equal the real parts have to be equal and the imaginary parts have to be equal. For (1) we have (2) 5 = x for the real parts, therefore (3) x = 5 And for the imaginary parts we have (4) iy = i3, therefore (5) y = 3 Answer: x = 5 and y = 3.

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Evaluate 10C4. Type a numerical answer in the space provided. Do not type spaces in your answer.

SOVA2 [1]

10C4 represent the Combinations of 10 objects taken 4 at a time.

The formula for nCr is:

$nCr= \frac{n!}{r!(n-r)!}$

In the given case, n=10 and r=4. Using these values we get:

$10C4= \frac{10!}{4!(10-4)!} \\ \\ 
= \frac{10!}{4!*6!} \\ \\ 
=210$

This means we can make 210 combinations of 10 objects taken 4 at a time.

4 0

2 years ago

1. what is the equation of a line that has an x-intercept of 2 and a y-intercept of 8

Phoenix [80]

Answer:

Step-by-step explanation:

x- intercept = 2 .So, Coordinate(2 , 0)

y-intercept = 8 . So, Coordinate (0, 8)

$Slope = \frac{8-0}{0-2}\\\\=\frac{8}{-2}\\\\=-4$