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bixtya [17]
3 years ago
7

(2-6i)+(4+3i) standard form

Mathematics
1 answer:
Mazyrski [523]3 years ago
5 0
6-3i. You add common factors. 2+4 is 6 and -6i and 3i is negative 3i
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Find the zeroes of polynomial x² -(√3+1)x+√3
r-ruslan [8.4K]
X² - √3x -x +√3

x(x-√3) -(x-√3)

(x-√3)(x-1)

zeroes are x-√3 = 0
                 x = √3

and x-1 =0
       x =1
6 0
3 years ago
SOMEONE HELP ME PLEASE<br><br> thank you!
faltersainse [42]

Answer: See below

Step-by-step explanation:

Same steps as the last question I answered

5) a ➤ x=-3

b ➤ y=7

6) x=-1

7) y=-4

7 0
2 years ago
Read 2 more answers
The owner of a hot dog stand receives a loan of $3,750 at 8.25% for 9 months. find the amount of simple interest.(round to the n
Mkey [24]
Hello! The formula for simple interest is prt. That means you multiply the principal (initial amount) by the rate (simple interest percentage), by the amount of time (could be in months or years). So, the loan is $3,750 and the rate is 8.25% for 9 months. 9 months is 3/4 of the year, because there are 12 months in 1 year and 9/12 is 0.75. Let's multiply. 3,750 * 8.25% (0.0825) is 309.375 Now, multiply that number by 0.75 to get 232.03125 or 232.03 when rounded to the nearest hundredth (cent). The amount of simple interest is $232.03.
7 0
3 years ago
5. 3x + 5y + 5z =1<br> x - 2y = 5<br> 2x + 4y = 11
lilavasa [31]

Answer:

see explanation

Step-by-step explanation:

Given the 3 equations

3x + 5y + 5z = 1 → (1)

x - 2y = 5 → (2)

2x + 4y = 11 → (3)

Use (2) and (3) to solve for x and y

Multiply (2) by 2

2x - 4y = 10 → (4)

Add (3) and (4) term by term

4x = 21 ( divide both sides by 4 )

x = \frac{21}{4\\}

Substitute this value of x into (3)

2 × \frac{21}{4\\} + 4y = 11

\frac{21}{2\\} + 4y = 11 ( subtract \frac{21}{2\\} from both sides )

4y = \frac{1}{2} ( divide both sides by 4 )

y = \frac{1}{8\\}

Substitute the values of x and y into (1) and solve for z

3 × \frac{21}{4\\} + 5 × \frac{1}{8\\} + 5z = 1

\frac{63}{4} + \frac{5}{8} + 5z = 1

\frac{131}{8} + 5z = 1 ( subtract \frac{131}{8} from both sides )

5z = - \frac{123}{8} ( divide both sides by 5 )

z = - \frac{123}{40}

Solution is

x = \frac{21}{4\\}, y = \frac{1}{8\\}, z = - \frac{123}{40}

3 0
3 years ago
Draw the graph for the equation by first finding at least two points on the line.<br> 2x-y=9
ELEN [110]

Answer:

enjooooooooyyyyyyyyyyyyyyyy

4 0
1 year ago
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