All categories

3 years ago

Imaginary Numbers 10(4-3i)= Answer choices: 40-30i 40+30i 40-3i

Mathematics

1 answer:

Tom [10]3 years ago

5 0

Answer:

A. 40-30i is your answer.

You might be interested in

3\sqrt{2} - 2\sqrt{18} + 6\sqrt{8}[/tex]

Stella [2.4K]

Answer:

$\sf \bold 9\sqrt{2}$

Step-by-step explanation:

<h3>Simplifying radicals</h3>

Step1: Prime fatorize and reduce to simplest form

Step2: Combine like radicals

$\sf 3\sqrt{2} - 2\sqrt{18}+6\sqrt{8}= 3\sqrt{2}- 2\sqrt{3*3*2}+6\sqrt{2*2*2}$

$\sf = 3\sqrt{2}-2*3\sqrt{2} +6*2\sqrt{2}\\\\=3\sqrt{2}-6\sqrt{2}+12\sqrt{2}\\\\=(3-6+12)\sqrt{2}\\\\ = 9\sqrt{2}$

5 0

2 years ago

Find the surface area

Brut [27]

Answer:

Step-by-step explanation:

area of top=7×6=42 yd²

area of bottom=3×6=18 yd²

area of two rectangles=2[4×6]=48 yd²

area of two trapezoids=2[1/2(7+3)×3.5]=35 yd²

total surface area=42+18+48+35=143 yd²

7 0

3 years ago

Simplify each expression into a single number using standard algorithms.<br> 1.-3-2

liberstina [14]

Answer:

- 5

Step-by-step explanation:

Step 1:

- 3 - 2 Equation

Step 2:

- 3 - 2 Add

Answer:

- 5

Subtracting from a negative number is the same thing as adding. If you have a negative number and you have to subtract from it. You just add both of the negative numbers together.

Hope This Helps :)

4 0

3 years ago

George has a bag with 4 mint sticks, 3 jelly treats, and 13 fruit tart chews. If he eats one piece every 5 minutes, what is the

slega [8]

Answer:

12/625 or 1.9%

Step-by-step explanation:

Adding all of the candy pieces together, you get 25, the denominator.

3/25*4/25=12/625

12/625=.0192

.0192*100=1.92%

5 0

4 years ago

Find t12 for a geometric sequence where t1=2+2i and r=3

vfiekz [6]

Answer:

$T_{12} = 354294 + 354294i$

Step-by-step explanation:

Given

Geometric Sequence (GP)

$T_1 = 2 + 2i$

$r = 3$

Required

Determine T₁₂

The nth term of a GP is calculated as thus;

$T_n = ar^{n-1}$

In this case;

$n = 12$ ; $r = 3$ and $a = T_1 = 2 + 2i$

Substitute these values in the above formula

$T_{12} = (2 + 2i) * 3^{12-1}$

$T_{12} = (2 + 2i) * 3^{11}$

$T_{12} = (2 + 2i) * 177147$

Open the bracket

$T_{12} = 177147 * 2 + 177147 * 2i$

$T_{12} = 354294 + 354294i$

<em>Hence, the 12th term of the sequence is </em> $T_{12} = 354294 + 354294i$

8 0

3 years ago