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german
3 years ago
6

(8-2i)(4-2i)how do i solve

Mathematics
1 answer:
erastova [34]3 years ago
4 0
You use distributive property of multiplication
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What is the area of a shape with points a 5 -8 b 11, -8 c 11,0 d 6,-3 e 4,-3
Dmitriy789 [7]

Answer:

Area of the given figure is 51.5 square units.

Step-by-step explanation:

Area of rectangle OCBH = Length × width

                                         = 11 × 8

                                         = 88 square units

Area of trapezoid OGEF = \frac{1}{2}(b_1+b_2)\times h

                                         = \frac{1}{2}(\text{GE+OF)}\times (\text{OG})

                                         = \frac{1}{2}(3+6)\times 4

                                         = 18 units²

Area of trapezoid GCDE = \frac{1}{2}(\text{GC+DE)}\times (\text{GE})

                                         = \frac{1}{2}(7+2)\times 3

                                         = 13.5 units²

Area of triangle AFH = \frac{1}{2}(\text{Base})\times (\text{Height})

                                  = \frac{1}{2}(5)(2)

                                  = 5 units²

Area of polygon ABCDEF = Area of rectangle CBHO - (Area of trapezoid OGEF + Area of trapezoid GCDE + Area of triangle AFH)

                                           = 88 - (18 + 13.5 + 5)

                                           = 88 - 36.5

                                           = 51.5 units²

Therefore, area of the given polygon is 51.5 units²

3 0
4 years ago
How do you solve this question?<br><br> you need to find the gradient of the straight line
pshichka [43]

Answer:

m=\frac{1}{2}

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

<u>Algebra I</u>

  • Slope Formula: m=\frac{y_2-y_1}{x_2-x_1}

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Find points from graph.</em>

Point (0, 3)

Point (10, 8)

<u>Step 2: Find slope </u><em><u>m</u></em>

Simply plug in the 2 coordinates into the slope formula to find slope <em>m</em>

  1. Substitute [SF]:                    m=\frac{8-3}{10-0}
  2. Subtract:                              m=\frac{5}{10}
  3. Simplify:                               m=\frac{1}{2}

7 0
3 years ago
Read 2 more answers
Find the slope of the line passing through the points (-3,4) and (2,1)
maksim [4K]
Answer is d. -5/3 because y2-y1 =x2-x1
8 0
3 years ago
Read 2 more answers
The chance that a person is left handed is 0.15 or 15%. if you randomly select 8 people, what is the probability that they are a
Wittaler [7]
Answer: The probability that all 8 people are right handed is about 27.25%.

If the chance a person is left handed, the chance a person is right handed is 85%.

Now, we just need to find the chance that this 85% event happens 8 times in a row.

Simply, multiply it by itself 8 times.

(0.85)^8 = 0.2725

There is a 27.25% chance all 8 people are right handed.
8 0
4 years ago
Negative 1 times 4 over 5
UNO [17]
Hey there!
<span><span>
-1/1 x 4/5

= -1 x 4
     1 x 5
Answer: -4/5

Hope this helps
Have a great day (:
</span></span>
4 0
3 years ago
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