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(4 - 6i)(6 - 8i)
= 4(6-8i) - 6i(6-8i)
= 24 - 32i - 36i + 48i²
= 24 - 68i + 48(-1)
= 24 - 68i - 48
= - 24 - 68i
Related Questions
s=4h+4w solve for h.
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s - 4w = 4h
Now you are going to divide both sides by 4 to isolate the variable h. This gives you your answer:
[tex]h = \frac{(s-4w)}{4} [/tex]
show this fraction as a decimal 1 1/4
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1/4 is the same as 25/100 (if you multiply 25 top and bottom). 25/100 = 0.25
1 + 0.25 = 1.25
1.25 is your answer
hope this helps
Decimal: 1.25
Think about like this: kinda like money
1/4: 25 (cents)
2/4 50 (cents)
3/4 75 (cents)
4/4 100 (cents) or 1 (a dollar bill)
Hope that could help out!
please help me out i will reward brainliest
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what is the answer to the problem above?
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5 × 18 = 90
100/90 = 10/9 = 1 1/9
need help fast don't understand both A and B show work please
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Usually the number of bits in a byte is 8 or 16 or 32 and recently 64. You don't have to write a formula to restrict it to this number of bits. You are not asked to do so. The general formula is 2^n - 1 for the problem of Millie and her golden keys. Somehow the system can be made to choose the right number of bits. Apple IIe s for example, used 8 bits and there was a location that told the processor that fact.
2^n - 1 <<<<< Answer
Problem B
In this case n = 4
2^n - 1 = 2^4 - 1 = 16 - 1 = 15
Millie can collect 15 keys <<<<<< Answer
giovanni justifies what is expression -4x - 8 is equivalent to -2( x + 1) - 2 ( x + 3 ) by letting x equal 3 in both expressions what is the value of each expression when x equals 3
Answers
You put 3 in for x in both equations
Equation 1
-4(3) - 8 =
Multiply
-12 - 8 = -20
The answer is one of the ones with -20
------------------------------------------------------------------------------------------------------
Equation 2
-2(3 + 1) - 2(3 + 3)
Do what is in paraenthesis
-2(4) - 2(6)
Multiply
-8 - 12 = -20
------------------------------------------------------------------------------------------------------
The answer is C) -20 and -20
Hope this helps!
Answer:
C. -20 & -20
Step-by-step explanation:
If you substitute x for 3 in the expressions, they will both evaluate to -20.
Thus, the answer is -20
I need help
Circle P is below
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2. add all of them up together
[tex](4y + 6) + (7y - 7) + (20y - 11) = 360[/tex]
3. combine like term then solve for Y
4. you will figure the arc measure of BC when you get answer for Y.
31y-12=360
31y=360+12
31y=372
y=372/31=12
BC=BA+AC=4y+6+7y-7=11y-1
BC=11*12-1=131⁰
Find F'(x) for F(x) = [x^3,1] integral cos(t^4)dt
A. cos(1)-cos(x^12)
B. -3x^2cos(x^12)
C. cos(x^7)
D. -cos(x^12)
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F'(x) = 0 -cos((x^3)^4)·3x^2
Simplifying, ...
F'(x) = -3x^2·cos(x^12)
The appropriate choice is ...
B. -3x^2cos(x^12)
-845 degree coterminal angle
Answers
with negative angles, we go "clockwise", the same direction a clock hands move.
so -360-360-125 = -845.
so as you see in the picture, you go around twice, and then a little bit more, an extra 125°, landing you at -125°, or its positive counterpart, 235°.
What is 134,500 rounded to the nearest ten thousand
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Pythagorean theorem to determine if a triangle with sides 2 ft,5ft,4ft is a right triangle
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[tex] 2^2 + 4^2 = 5^2 [/tex]
[tex] 4 + 16 = 25 [/tex]
[tex] 20 = 25 [/tex]
Since 20 = 25 is clearly a false statement, the three side lengths 2 ft, 4 ft, and 5 ft do not form a right triangle.
Sergio runs 2 1/4 miles in 30 minutes. Write the ratio in fractional form and determine Sergio's speed in miles per hour.
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4.5 miles per hour.
Hope this helps. - M
Sergio runs at a speed of 4.5 miles per hour. The ratio of his running distance to time is 9/2.
Explanation:To determine Sergio's speed in miles per hour (mph), we use the equation: speed = distance/time. Sergio runs 2 1/4 miles in 30 minutes. First, we need to convert the fractional distance to a decimal and the time to hours. 2 1/4 miles is equal to 2.25 miles and 30 minutes is equal to 0.5 hours.
Substitute these values into the equation:
speed = 2.25 miles/0.5 hour = 4.5 mph.
Therefore, Sergio's running speed is 4.5 miles per hour. The ratio of distance to time in fractional form would be 9/2.
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The Tigers’ first play when they had possession of the ball went for -3 yards. Did the Tigers gain or lose yards on that play? How many yards did they gain or lose?
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Answer:
The correct answer is (The Tigers lost 3 yards on that play.)
A cross-section of a light reflector is a parabola. The bulb is located at the focus. Suppose the bulb is located 11 in from the vertex of the reflector.
Use this information to make the following determinations.
Model a cross section of the reflector by writing an equation of a parabola that opens upward and has its vertex at the origin.
Answers
An equation of a parabola that opens upward and has its vertex at the origin,
⇒ y² = - 8 x
What is Multiplication?To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.
Now,
The equation of the parabola turned to the left is to the negative side of the coordinate system is:
⇒ y² = - 2 p x
where, p is the parameter of the parabola
The relationship between the parameter and the focus is.
⇒ p = 2 f
=> p = 2 × 2
⇒ p = 4 cm
Then, the equation of the parabola is:
y² = - 2 p x
= - 2 × 4 x
= - 8 x
Therefore, An equation of a parabola that opens upward and has its vertex at the origin,
⇒ y² = - 8 x
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Evaluate 7i^4-12i^2
-5
19
19i
Answers
Hope this helps
The powers of i repeat every four terms, so i⁴ equals 1 and i² equals -1. The result of the evaluation is 19.
To evaluate the expression 7i⁴-12i². In complex numbers, i is the imaginary unit with the property that i² = -1. The powers of i repeat every four terms:
i¹ = i
i² = -1
i³ = -i
i⁴ = 1
Using these properties, we can simplify the expression:
7i⁴ is 7 times 1, which equals 7.
-12i² is -12 times -1, which equals 12.
Adding these together, we get 7 + 12 = 19.
Therefore, the evaluated expression is 19.
MpRashawn recently spent $100 to open a store selling tee-shirts. At his business, he purchases plain tee-shirts for $11 each, prints graphics on them, and then sells them for $26 each. What is the minimum number of tee-shirts that Rashawn would need to sell in order to make a profit (total income minus total expenses) of at least $400?
Answers
400÷15=26,(6)
He would need to sell 27 T-shirts
Rashawn would need to sell 20 T-Shirts in order to make a profit of at least $400.
What is profit percentage?SP-CP divided by CP multiplying with 100 we get profit percentage.
P= [(SP-CP)/CP ] × 100
Given the following details about Mr. Rashawn.
Mr. Rashawn recently spent = $100 to open a store selling tee-shirts
He purchases plain tee-shirts for = $11 each
Then sells them for = $26 each
Profit on each shirt = $26 - $11 = $15
Profit = $400 -$100= $ 300
Number of t- shirts= $300/15 = 20 T -shirts.
Thus, Rashawn would need to sell 20 T-Shirts in order to make a profit of at least $400.
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Suppose you choose two families at random. what is the chance that family a owns exactly one car and family b owns exactly one car?
Answers
The American flag is customarily made with its width and length in the ratio of 10 to 19. Which of the following dimensions is in the correct ratio for the flag?
Answers
Final answer:
The given dimensions do not match the American flag's customary ratio of 10 to 19. To find the correct dimensions, the numbers must divide to equal approximately 0.5263. None of the provided options are correct.
Explanation:
The American flag is customarily made with its width and length in the ratio of 10 to 19. To ensure the dimensions are correct, we must find a pair of numbers that, when divided, are in the same proportion as 10/19 (approximately 0.5263). Looking at the listed dimensions:
51 H (Height is not a width or length measurement, so we cannot confirm the ratio)
53 x 38 (53/38 = 1.3947 which is not equal to 10/19)
55 x 0.025 (55/0.025 = 2200 which is not equal to 10/19)
57 x (2.93, 3.59) (This does not provide a pair of length and width measurements)
59 (This is not a dimension)
Since none of the provided options has numbers that mirror the 10 to 19 ratio of the flag, none of these dimensions would be correct for an American flag. If we want to find dimensions that are proportional, we have to look for any two numbers that, when divided, equal approximately 0.5263. Hence, an example of a correct dimension following the flag's ratio would be 10 inches by 19 inches or any multiple thereof.
205/1000 is less then are greater then 0.205
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One side of a cube has an area of 25 centimeters squared. What is the surface area of the cube?
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[tex]\bf \textit{area of a square}\\\\ A=s^2~~ \begin{cases} s=length~of\\ \qquad a~side\\ ------\\ A=25 \end{cases}\implies 25=s^2\implies \sqrt{25}=s\implies 5=s[/tex]
now, look at the picture below, a cube is really just 6 squares stacked up to each other at the edges, in this case, all 6 squares are 5x5.
so, simply get the area of all of them, and sum them up, and that's the surface area of the cube.
(5*5)+(5*5)+(5*5)+(5*5)+(5*5)+(5*5).
Anyone have the answer?!!!
Answers
reflection across y = x.
What is the y-intercept of the quadratic y=-2x^2-4x-5 ?
(-5,0)
(0,-2)
(-1,3)
(0,-5)
Answers
We have:
[tex]y=-2x^2-4x-5\to f(0)=-2(0)^2-4(0)-5=-5[/tex]
Answer: (0; -5)
What is the equation in slope-intercept form of the linear function represented by the table? x y –6 –18 –1 –8 4 2 9 12
Answers
y = (y₂ -y₁)/(x₂ -x₁)×(x -x₁) +y₁
If we let (x₁, y₁) = (4, 2) and (x₂, y₂) = (9, 12) this becomes
y = (12 -2)/(9 -4)×(x -4) +2
y = (10/5)×(x -4) +2
y = 2x -6
The equation in slope-intercept form of the given function is ...
y = 2x -6
Answer: y=2x-6
Step-by-step explanation:
of the pizzas sold last week at vondras pizzaria 7/12 were large pizzas and 1/4 were extra large pizzas, what fraction of the pizzas aild were either large or extra large? enter your answer simplified and as a proper fraction
Answers
7/12 + 3/12 = 10/12
10/12 of the pizzas sold were either large or extra large
I hope this helps :)
Answer:
Step-by-step explanation:
7/12 + 1/4
7/12 + 3/12 = 10/12
10/12 of the pizzas sold were either large or extra large
When multiplied, what is the simplified form of (5 − 2i)(1 − 2i)? Write the answer in standard form, a + bi, where a and b are real numbers.
Answers
F: 5*1 = 5
O: 5 *(-2i) = - 10i
I : -2i * (1) = - 2i
L: (-2i)(-2i) This may take a bit. There's a few signs hanging around.
L: (-2 * -2)*(i * i)
L: 4 (i *i)
L: 4(-1)
L: - 4 So combine these results.
FOIL: 5 - 10i - 2i - 4 Group the like terms
FOIL: 5 - 4 - 10i - 2i Now collect them
FOIL: 1 - 12i <<<<<<< Answer
What is the growth factor of the following example? Assume time is measured in the units given. A forest shrinks 80% per century.
Answers
The growth factor is 0.20 per century.
Over 4 hours, the temperature in Miami, Florida, rose 8ºF. How many degrees, on average, did the temperature rise per hour
Answers
Answer:
The correct answer is 2°F
Step-by-step explanation:
Your equation is 8÷4
8÷4=2
I hope this helps :)
Emily got a newjob that guarantees her a 6% raise every year. If she started out making 25,000, how long will it be before she doubles her current salary
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hey can you please help me posted picture of question
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C (n) = 20n + 15
Clearing t we have:
20n = c - 15
n = c / 20 - 15/20
Rewriting:
N (c) = (c-15) / 20
Answer:
The inverse function for this case is given by:
N (c) = (c-15) / 20
option B
Q #15 Graph ARTS With vertices R(6, 6), S(3, -6),and T(0, 3) and its image. over the Y -axis
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(x,y) ⇒⇒⇒ (-x,y)
Note point T will not change
the solution is as shown in attached figure