Answers
Answer:
D. [tex]\frac{-19}{74} +\frac{71}{74} i[/tex]
Step-by-step explanation:
[tex]\frac{-8+3i}{5+7i} (\frac{5-7i}{5-7i} )[/tex]
[tex]\frac{-40+56i+15i-21i^2}{25-35i+35i-49i^2}[/tex]
[tex]\frac{-40+71i-21(-1)}{25-49(-1)}[/tex]
[tex]\frac{-40+21+71i}{25+49}[/tex]
[tex]\frac{-19+71i}{74}[/tex]
[tex]\frac{-19}{74} +\frac{71}{74} i[/tex]
I hope this helps and God bless!
Related Questions
Estimate the measure of the angle shown below.
Answers
Answer:
45
Step-by-step explanation:
because it can look a little bit more like half of a right angle
Answer:
45
Step-by-step explanation:
hope this helps
a room is 15ft x 17ft and is 10 ft tall. if you were going to paint all four walls, with one coats of paint, how many square feet would you have to cover. if a gallon of paint covered 800 sq feet, how many gallons of paint would you have to buy?
Answers
Answer:
15 x 17 x 10 ft = __
Step-by-step explanation:
MMultiply the numbers and divided by 800. That should lead you! :D
Match each logarithmic equation to its corresponding x-value.
=
5
log, t = 5
log, I = 1
=
= 4
log
1,000
16
625
3
log10+ = 3
32
1084*
= 2
>
A>
1
&
Answers
Answer:
please check photos for explanation.
The correct matches are:
32 corresponds to log₂(x) = 5
3 corresponds to log₃(x) = 1
1,000 corresponds to log₁₀ (x) = 3
625 corresponds to log₅(x) = 4
16 corresponds to log₄(x) = 2
What is Logarithm?A logarithm is a mathematical function that represents the exponent to which a specific base must be raised to obtain a given number. In other words, it is the inverse operation of exponentiation.
The logarithm of a number x to a given base b is denoted as log_b(x), where b is the base and x is the number. It represents the power to which the base must be raised to obtain the value x.
The logarithmic equations and their corresponding x-values are as follows:
log₂(x) = 5 → x = 32
log₃(x) = 1 → x = 3
log₁₀(x) = 3 → x = 1,000
log₅(x) = 4 → x = 625
log₄(x) = 2 → x = 16
So, the correct matches are:
32 corresponds to log₂(x) = 5
3 corresponds to log₃(x) = 1
1,000 corresponds to log₁₀ (x) = 3
625 corresponds to log₅(x) = 4
16 corresponds to log₄(x) = 2
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Re-write the quadratic function below in Standard Form
y=2(x+2)(x−4)
Answers
Answer:
Standard form:
y=2x^2-4x-16
What is a typical age (the mean) for the people who were at Movie A?
Answers
It is 39
Because you have to count the little dots all the way till it is around the most age.
solve for x ~
[tex]x {}^{2} - 5x + 6 = 0[/tex]
thankyou ~
Answers
Answer:
x = 2 or x = 3
Step-by-step explanation:
x² - 5x + 6 = 0
x² - (3 + 2)x + 6 = 0
x² - 3x - 2x + 6 = 0
x(x-3) - 2(x - 3) = 0
(x - 3)(x -2) = 0
Either,
x - 3 = 0
x = 3
Or,
x - 2 = 0
x = 2
______________________
factor x² - 5x + 6[tex] \small\tt \color{black}{(x−3)(x−2)=0}[/tex]
_______________________
SOLVING FOR X[tex] \small\tt \color{black}{x=3,2}[/tex]
#Brainly
if x+y= -10 and x-y=2 what is the value of x
Answers
Answer:
X+Y=10, X-Y=2, what is X, Y?
Answer: x=6 and y=4
Explanation:
Given:
x+y=10 ⟶(i)
x−y=2 ⟶(ii)
From equation (ii) ,
x=2+y
Put value of x in equation (i) ,
2+y+y=10
2+2y=10
2(1+y)=10
1+y=102
1+y=5
y=5−1
y=4
Put value of y in equation (ii) ,
x−4=2
x=2+4
x=6
x + y = 10 → Eq A
x – y = 2 → Eq B
Now we will take out the expression of x from Eq A.
x + y = 10 Eq A
x = 10 – y → Expression of x
Now put the expression of x in Eq B.
x – y = 2
( 10 – y ) – y = 2
10 – 2y = 2
10 – 2 = 2y
8 = 2y
y = 8 / 2
y = 4
Now put the value of y in expression of x.
x = 10 – y
x = 10 – 4
x = 6
So, x = 6 and y = 4.
Thank you.
Hope it helps and you like it
x + y = - 10 (equation 1)
x - y = 2 (equation 2)
using equation 2 we get x = 2 + y
putting the value of x in equation 1 we get :
(2 + y) + y = - 10
2 y = -10-2
2 y = -12
y = -6
put the value of y in any equation
to get the value of x
x - y = 2
x - (-6) = 2
x + 6 = 2
x = -4
How do you know when terms can be combined?
A. They are the same size
B. They have the same exponent
C. They have the same number
D. They have the same variable and exponent
Answers
Answer:
C. They have the same number
In the morning, the trip odometer in Mr. Chin's car read 47 miles. At the end of the day, the trip odometer read 114 miles. How
many miles did Mr. Chin drive that day?
Answers
Answer:
67 miles
Explanation:
initial reading: 47 milesfinal reading: 114 milesmiles travelled:
final reading - initial reading114 - 4767 milesAnswer:
67 miles
Step-by-step explanation:
An odometer measures the distance traveled by a vehicle.
To calculate the number of miles Mr Chin drove that day, subtract the reading of the odometer at the start of the day from the reading of the odometer at the end of the day.
Given information:
Starting odometer reading = 47 milesEnding odometer reading = 114 miles⇒ Number of miles driven = 114 - 47
= 67 miles
find the factors of 45
Answers
Answer:
1, 3, 5, 9, 15, 45
Step-by-step explanation:
Factors of a number is when two or more numbers are multiplied to give you your original number. Here, it's 45.
The factors of 45:
1 x 45 = 45
3 x 15 = 45
5 x 9 = 45
1, 3, 5, 9, 15, 45
Hope this helps!
Cherokee Manufacturing Company established the following standard price and cost data.
Sales price
Variable manufacturing cost
Fixed manufacturing cost
Fixed selling and administrative cost
$12.00 per unit
$ 7.20 per unit
$3,600 total
$1,200 total
Cherokee planned to produce and sell 2,000 units. Actual production and sales amounted to 2,200 units.
Required
a. Determine the sales and variable cost volume variances.
b. Classify the variances as favorable (F) or unfavorable (U).
d. Determine the amount of fixed cost that will appear in the flexible budget.
e. Determine the fixed cost per unit based on planned activity and the fixed cost per unit based on actual activity.
Answer is not complete.
Answers
Assuming the Actual production and sales amounted to 2,200 units.The sales and variable cost is:2400 F; $1,440 UF.
Sales and variable cost volume variancesa. Sales and variable cost volume variances
Sales =(Actual units sold -Budgeted units sold)× Budgeted price per unit
Sales=(2200-2000)×$12.00 per unit
Sales=26,400-$24,000
Sales=2400 F
Variable=(Actual units sold -Budgeted units sold)× Budgeted price per unit
Variable=(2200-2000)×$7.20 per unit
Variable=$15,840-$14,400
Variable=$1,440 UF
b. Sales=2400 F
Variable=$1,440 UF
d. Fixed cost
Fixed manufacturing cost $3,600
Fixed selling and administrative cost $1,200
e. Master budget Flexible budget
Fixed manufacturing cost $3,600 $3,600
Fixed selling and administrative cost $1,200 $1,200
Tota fixed cost $4,800 $4,800
Cost per units $2.4 $2.18
($4,800 /2000) ($4,800/2200)
Therefore the sales and variable cost is:2400 F; $1,440 UF.
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there are 4,325 players in a chess tournament. In each round, half the players are eliminated. what function can be used to find the number of players remaining in the tournament at the end of x rounds?
Answers
Sounds like Squid Game lol
4325=2x
Hope it helps!
The selling price of a textbook is
$
158.75
.
If the markup is
25
% of the bookstore's cost, what is the bookstore's cost of the textbook?
Answers
Answer:
198.43. dollars is the answer
find the mean absolute deviation of the set of data
1,4,7,8,10
Answers
Answer: MAD= 2.8
Step-by-step explanation: start by finding the mean of the data set. find the sum of the data values, and divide the sum by the number of data values.
Rebecca is saving money to purchase a laptop which cost $1,099.51 she has already saved $354.20 and plans to continue saving $50.60 per week which inequality could be used to find W the number of weeks of Rebecca must save in order to purchase a laptop
Answers
Answer:
745.31+50.60w=1,099.51
W=7
Step-by-step explanation:
1st subtract 1099.51 from 354.20
2nd use your answer which is 745.31 and add that with how much she plans on saving for how ever long
3d to find out how many weeks which is 50.60*w you need to first minus 745.31 from both sides
4th so 745.31- 745.31 and 1099.51-745.31 =354.2 or .20
5th divide 354.2 by 50.60 =7
So overall w= 7
CAN SOMEBODY HELP ME PLEASE
NO LINKS
Answers
Answer:
(-∞, ∞)
Step-by-step explanation:
The domain of a function is the set of values of the independent variable for which the function is defined. On a graph, it is the horizontal extent of the graph.
The domain of any polynomial function is "all real numbers." There are no values of x for which f(x) is undefined.
In interval notation, the domain is ...
(-∞, ∞)
Select the correct answer.
Solve the quadratic equation.
(x + 4)(x + 1) = 0
x = 4 or x = 1
x = -4 or x = 1
x = -4 or x = -1
x = 4 or x = -1
Answers
Answer:dama isis a few days ago and I will be able toatop
s,d,;,,s;f ,;,s,;, ,;,w;,e; w., .,. w. w; .;3.;.w.a''eee;. .a'..e.rr;.;a.'.';....';;w.a;'3;.;.ee.'.'.'e.'.da'.w...a.w..eq.s.'q'w.'.'d.'a.'w.'.d'sa.;;.w;.d.a.s laging
a
Step-by-step explanation:
Answer:
The correct answer is x = -4 or x = -1
Explanation:
The equation is in factored form, so use the zero product property to solve the equation:
x + 4 = 0 or x + 1 = 0
x = -4 or x = -1
If 5,x,125 are in continued proportion, find valueee of xxxxx.....
Answers
Answer:
[tex] \pmb{SOLUTION:-}[/tex]
5,x,125 are in continued proportion,Then,
[tex] \displaystyle{ \frac{5}{x} = \frac{x}{125} }[/tex]
[tex]5 \times 125 = {x}^{2} [/tex]
[tex] {x}^{2} = 625[/tex]
[tex]x = \sqrt{625} [/tex]
[tex]x = 25[/tex]
Answer:
a₂ = ±25Step-by-step explanation:
5, x, and 125 are part of a geometric progressionWhat we know :
a (first term) = 5aₙ (final term) = 125n (number of terms) = 3Finding the common ratio (r)
aₙ = arⁿ⁻¹125 = (5)(r)³⁻¹25 = r²r = ± 5Finding x
x is the 2nd term of the progressiona₂ = ara₂ = 5(±5)a₂ = ±25Multiply and reduce to lowest terms. Convert into a mixed number if necessary.
Answers
Answer:
1 1/3
Step-by-step explanation:
2(8/12)=16/12=1 4/12=1 1/3
Which choice is equivalent to the expression below?
√-12
A. 2√3i
B. 2i√3
C. 12i
D. -2√3
E. -12i
Answers
Answer:
Step-by-step explanation:
Remark
√-12
The square root of -12 must have an i in it somewhere. If it does not, then the minus sign stays under the root sign. If you take the root of -1 you get i, and that is outside √ sign.
Solution
A is incorrect. i is on the outside of the root sign.
B is the answer.
C does not seem to take the square root of anything except -1 so it is incorrect.
D Has no i anywhere and the -1 is incorrectly placed. D is wrong
E is just wrong. The minus should disappear once the square root of -1 is taken. 12 has a root that has not been declared.
a triangular prism is cut parallel from its bases, what is the shape of the cut?
Answers
Answer:
a triangle
Step-by-step explanation:
when looking at a triangular prism it is made of 4 triangles, so any way you cut it, it will be a triangle
Please I need your help
Answers
Answer:
A is 2/4 and 4/8
B is 2/8
C is 6/8
Step-by-step explanation:
Hope it helps
Please help me I am so bad at math
Answers
(f ◦ g)(x) is the composition of f(x) with g(x), equivalently
(f ◦ g)(x) = f(g(x))
To get f(g(x)), replace every instance of x in the definition of f(x) with g(x):
f(x) = -x + 7 ⇒ f(g(x)) = f(√(x - 3)) = -√(x - 3) + 7
Identify which one of the following is a formula unit:NaCl,H2O,HCl,HNO3
Answers
Based on the definition of the formula unit, the only one that is an example of this concept is NaCl.
What is a formula unit?In chemistry, this concept refers to the representation of an ionic compound. This formula differs from others because it displays the lowest possible ratio in which the ions have the same charges and therefore the compound is neutral.
What is one example of this formula?A classical example of this concept is NaCl because this includes a cation (positively charged) and an anion (negatively charged). Moreover, in this formula, the compound shows the lowest possible ratio between the two elements.
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A toy boat is bobbing on the water.
Its distance D(t)D(t)D, left parenthesis, t, right parenthesis (in \text{m}mstart text, m, end text) from the floor of the lake as a function of time ttt (in seconds) can be modeled by a sinusoidal expression of the form a\cdot\sin(b\cdot t)+da⋅sin(b⋅t)+da, dot, sine, left parenthesis, b, dot, t, right parenthesis, plus, d.
At t=0t=0t, equals, 0, when the boat is exactly in the middle of its oscillation, it is 1\text{ m}1 m1, start text, space, m, end text above the water's floor. The boat reaches its maximum height of 1.2\text{ m}1.2 m1, point, 2, start text, space, m, end text after \dfrac{\pi}{4}
4
π
start fraction, pi, divided by, 4, end fraction seconds.
Find D(t)D(t)D, left parenthesis, t, right parenthesis.
Answers
An equation for a toy boat is bobbing on the water is in the sinusoidal form which we can write as, D(t) = 0.2 sin2t +1
What is an Equation ?
An equation is a mathematical term, which indicates that the value of two algebraic expressions are equal. There are various parts of an equation which are, coefficients, variables, constants, terms, operators, expressions, and equal to sign.
For example, D(t) = acos2t +b
Types of equation
1. Linear Equation
2. Quadratic Equation
3. Cubic Equation
Given information,
Equation of bobbing, D(t) = a sinbt + d
By graph we can say that it is compressed two times,
So, value of b will be, 2
At t =0, height from the floor is 1 m
1 = a sin(2×0) + d
d = 0
At t =π/4, height from the floor is 1.2 m
1.2 = a sin(2×π/4) + 1
a = 0.2
By graph we can say that it is compressed two times,
So, value of b will be 2
Hence, An equation is D(t) = 0.2 sin2t +1
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Determine the area of the
12 in
9 in
11 in
18 in
"etermine the area of the following
Answers
Answer:
21,384 all you have to do is multiply all of the numbers to find out area
What is the 15th term of the following sequence? 0.25, 0.5, 1, 2, 4…
Answers
4,096
Solution:In this case, we have a geometric sequence.In a geometric sequence, we use multiplication/division in order to get to the next term.In this case, we multiply each term by 2.So these are the terms:0.25, 0.5, 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1,024, 2,048, 4,096Hope it helps.
Do comment if you have any query.
a poker hand consisting of five cards, is dealt from a standard deck of 52 cards. Find the probability that the hand contains five face cards
Answers
Answer:
56
Step-by-step explanation:
because is one times 44
please fast answer guys are in doing correct answer guys
multiply 998752×15
divide 22 table 15253435
add 22222+89997+45567+10130
sub 99999-45678
Answers
Answer:
i think that to many but the answer is 5
Step-by-step explanation:
qwerty
Madison and Declan are training for a lifeguard test Madison swims 2/5 mile in 3/8 hour. Declan swims 7/10 mile in 1/5 hour who swims faster
Answers
Answer:
Declan!
Step-by-step explanation:
V(Madison)=S/t=2/5÷3/8=16/15 mile/hour
V(Declan)=7/10÷1/5=7/2 mile/hour
16/15 < 7/2