Answer:
7 + 42i.
Step-by-step explanation:
u v = 7i(6 - i)
= 42i - 7i^2 But i^2 = -1 so:
= 42i - 7(-1)
= 7 + 42i.
Answer:
$2,954.55
Step-by-step explanation:
- 11%*x=325
- 325*100=11x
- 32500/11=2,954.55
Answer:
cos34°
sin56°
Step-by-step explanation:
Sin(2x+42)= sin90-(3x+13)
Sin(2x+42) = sin(90-13-3x)
Sin(2x+42) = sin(77-3x)
2x + 42 = 77-3x
5x. = 35
X = 7
If x = 7
cos(3x+13) = cos((3*7)+13)
cos(3x+13) = cos(21+13)
cos(3x+13)= cos34
And
sin(2x+42) = sin((2*7)+42)
sin(2x+42)= sin (14+42)
sin(2x+42) = sin56
<u>b</u><u>.</u><u>3</u><u>6</u><u> </u><u>is</u><u> </u><u>the</u><u> </u><u>answer</u><u> </u>
<u>let</u><u> </u><u>a</u><u>=</u><u>2</u><u> </u><u>,</u><u> </u><u>and</u><u> </u><u>b</u><u> </u><u>=</u><u> </u><u>3</u><u> </u><u>then</u><u> </u><u>2</u><u>×</u><u>3</u><u>^</u><u>2</u><u> </u><u>=</u><u> </u><u>36</u><u> </u>
4n3 2m 6m 5n 2n should be written as {<span>4n^3, 2m, 6m, 5n, 2n}
4n^3 stands alone. No other term has this format.
2m and 6m are like terms and can be combined into 8m.
5n and 2n are like terms and can be combined into 7n.
</span>
