Answer:
i think -0.2x
Step-by-step explanation:
Given w =StartRoot 2 EndRoot (cosine (StartFraction pi Over 4 EndFraction) + I sine (StartFraction pi Over 4 EndFraction) ) and z = 2 (cosine (StartFraction pi Over 2 EndFraction) + I sine (StartFraction pi Over 2 EndFraction) ) , what is w – z expressed in polar form?
StartRoot 2 EndRoot (cosine (StartFRaction pi Over 4 EndFraction) + I sine (StartFraction pi Over 4 EndFraction) )
StartRoot 2 EndRoot (cosine (StartFraction 3 pi Over 4 EndFraction) + I sine (StartFraction 3 pi Over 4 EndFraction) )
StartRoot 2 EndRoot (cosine (StartFraction 5 pi Over 4 EndFraction) + I sine (StartFraction 5 pi Over 4 EndFraction) )
StartRoot 2 EndRoot (cosine (StartFraction 7 pi Over 4 EndFraction) + I sine (StartFraction 7 pi Over 4 EndFraction) )Solve the following triangle using the Law of Sines.
(9 points)
Answer:
d) √2∠(7π/4)
Step-by-step explanation:
Sometimes the expression A(cos(α)+i·sin(α)) is written as A·cis(α). I prefer the notation A∠α, because it is more compact.
You are given ...
w = √2∠(π/4)
z = 2∠(π/2)
And you are asked to find the difference w-z in polar form.
__
In rectangular form, ...
w = √2∠(π/4) = √2(1/√2 +i/√2) = 1 +i
z = 2∠(π/2) = 2(0 +i·1) = 2i
Then the difference is ...
w -z = (1 +i) -(2i) = 1 -i
You may notice this is the conjugate of w, so will have the opposite angle:
w - z = w* = √2∠(-π/4) = √2∠(7π/4)
In the terms used by the problem statement, ...
w -z = √2(cos(7π/4) +i·sin(7π/4)) . . . . matches choice D
A truck and carry a load of 5000 pounds assuming that it can be cut to fit how many feet of steel beam in Winx 32.6 pounds can the truck carry
About 153 Winx. Because 5000 divided by 32.6 is 153.374233129.
5) How many turkeys will be eaten on Thanksgiving Day?
First Guess = __________
Average Turkey Weight = 27 pounds
Number of Americans = 328 million
Amount needed per person = 1.5 pounds
Percent of Americans that eat turkey on Thanksgiving = 91%
Mathematical Estimate = __________ (Show your work)
Answer: mathmatical estimate 46 million
Step-by-step explanation:
456million first guess
aolve the equation. 3/4x+3-2x = -1/4+1/2x+5
If s = 36, what is the value of 2−s? −38 - 38 −34 - 34 34 34 38
Answer:
-34
Step-by-step explanation:
Substitute the value for the variable and evaluate.
[tex]2-s\\\\2-(36)\\\\2-36\\\\-34[/tex]
Answer:
38
Step-by-step explanation:
Will give brainliest answer
Answer:
I believe it's A)
Step-by-step explanation:
Ivan is curious if he can run faster than a rabbit.
He runs `90` feet in `5` seconds. The average rabbit can run at a speed of `35` feet per second.
Is Ivan faster than the rabbit?
Answer:
Step-by-step explanation:
Speed of rabbit per second = 35 ft
Ivan:
Speed in 5 seconds = 90 ft
Speed in 1 second = 90 ÷ 5 = 18 ft
No, Ivan is not faster than rabbit.
Solve the following system of equations graphically. Click on the graph until the correct solution of the system appears.
y = -3
x - y = 8
Putting y=-3 in second equation
[tex]\\ \sf\longmapsto x-(-3)=8[/tex]
[tex]\\ \sf\longmapsto x+3=8[/tex]
[tex]\\ \sf\longmapsto x=8-3[/tex]
[tex]\\ \sf\longmapsto x=5[/tex]
(x,y)=(5,-3)Elizabeth uses 33.15 ounces of granola for 15 servings of trail mix.
If each serving contains the same amount of granola, how much granola is in each
serving?
Answer:
Step-by-step explanation:
We have to do 33.15 / 15 to find how much is in each.
We change 33.15 into a fraction
We get 33 3/20
We do 33 3/20 / 15 = 33 3/20 * 1/15 = 663/20 * 1/15 = 663/300 = 2 63/300
Therefore, 2 63/300 ounces of granola is in a serving.
d−21.4=87.9
il will give you brainlyest if you show your work
Answer:
d = 109.3
87.9 + 21.4 = 109.3
109.3 - 21.4 = 87.9
Answer:
d-21.4=87.9
Step-by-step explanation:
d=87.9+21.4
d=109.3
d=109.3/1
=109.3
The difference between two numbers is 33 and the
ratio between them is 5 : 2. Find the numbers.
Answer:
55 and 22
Step-by-step explanation:
first let the numbers be x
5x-2x=33
3x=33
x=11
3(11)=33
5(11)=55
brainlist answer please
What is the square root of 121?
Answer:
11
Step-by-step explanation:
A square root is any number that is multiplies by itself to get a number.
11*11=121
Hope this helps! Plz give brainiest!
Translate: 20 more than a number is 55.
Answer:75
Step-by-step explanation:55+20=75
Determine if the ordered pairs represent a function.
{(1,5), (2,7), (3,9), (4,7)}
(yes or no)
Answer: No
Step-by-step explanation:
There's no noticeable pattern.
2. What is the probability that the third strike comes on the seventh well drilled?
Answer:
about a 5% chance
Step-by-step explanation:
That is, there is about a 5% chance that the third strike comes on the seventh well drilled.
The price of a watch was $115 when it was launched last year. When a new version of the watch was released this year, the price of the earlier version of the watch decreased by 15%. Find the price of the earlier version of the watch this year.
Answer:
$97.75
Step-by-step explanation:
115 times 0.85
What is the perimeter of a rectangle with a length of 21 cm and a width of 37 cm?
Answer:
the awnser is 777 do length x width
What is the equation of the blue line?
9514 1404 393
Answer:
y = 2
Step-by-step explanation:
A horizontal line has the equation ...
y = constant
The constant can be found by counting grid squares or reading the label on the y-axis where the line crosses.
The equation of the blue line is y = 2.
Please help me, I'm on a test
Sara bought one bunch of lettuce for $1.60. How many bunches can she get if she has $24?
Answer:
38.40
Step-by-step explanation:
If you multiply 1.60 by 24 it will get you 38.40
Answer:
15 bunches
Step-by-step explanation:
So if each bunch of lettuce costs $1.60, you can divide that by 24, which is the amount of money you have, to get 15 bunches.
[tex]\frac{1.60}{24}[/tex] = 15
What are the measures of Angles a, b, and c?
Show your work and explain your answers.
Answer:
∡a has a vertical angle sibling of 40°, and vertical angles are always congruent.
∡b is the 3rd angle in a triangle, the other two are 40° and 90°, recall all interior angles in a triangle add up to 180°.
∡c is a linear angle, namely an angle on the same flat-line as another, and linear angles always add up to 180°.
Step-by-step explanation:
In ANOP, NP is extended through point P to point Q, m_OPQ = (9x – 19)°,
mZPNO = (2x + 5), and mZNOP = (3x + 16º. Find mZNOP.
Answer:
The values of x and y are x = 6 and y = 9Step-by-step explanation:
MNOP is a parallelogram its diagonal MO and PN intersected at point A
In any parallelogram diagonals:
Bisect each other
Meet each other at their mid-point
In parallelogram MNOP
∵ MO and NP are its diagonal
∵ MO intersect NP at point A
- Point A is the mid-point pf them
∴ MO and NP bisect each other
∴ MA = AO
∴ PA = AN
∵ MA = x + 5
∵ AO = y + 2
- Equate them
∴ x + 5 = y + 2 ⇒ (1)
∵ PA = 3x
∵ AN = 2y
- Equate them
∴ 2y = 3x
- Divide both sides by 2
∴ y = 1.5x ⇒ (2)
Now we have a system of equations to solve it
Substitute y in equation (1) by equation (2)
∴ x + 5 = 1.5x + 2
- Subtract 1.5x from both sides
∴ - 0.5x + 5 = 2
- Subtract 5 from both sides
∴ - 0.5x = -3
- Divide both sides by - 0.5
∴ x = 6
- Substitute the value of x in equation (2) to find y
∵ y = 1.5(6)
∴ y = 9
The values of x and y are x = 6 and y = 9
yo someone pls help me
Answer:
3q+4+9=-14
(Simplify)
3q+13=-14
(Subtraction property of equality)
3q=-27
(Multiplication property of equality)
q=-9
Hope This Helps!!!
Answer:
[tex]q =( - 9)[/tex]
Step-by-step explanation:
Hey there,
[tex]3q + 4 + 9 = - 14[/tex]
[tex]3q + 13 = - 14[/tex]
[tex]3q = - 14 - 13[/tex]
[tex]3q = - 27[/tex]
[tex] \frac{3q}{ 3 } = \frac{ - 27}{3} [/tex]
[tex]q = - 9[/tex]
Hope this helps you.
Let me know if you have any other questions :-)
how many sixteenths are there in 1\4
Answer:
There are 4 sixteenths in one-fourth
Step-by-step explanation:
how many sixteenths are there in 1\4?
There are 4 sixteenths in one-fourth
1/4 : 1/16 =
1/4 * 16 =
4
1. A local charity is collecting food for the winter. They have asked 150
families to donate 5 cans of food. If 80% of the families donate 5 cans of
food, how many cans should the charity collect? *
The charity should collect 600 cans of food
Number of families that the charity asked to donate food = 150
80% of the families donated 5 cans of food
Number of families that actually donated 5 cans of food = (80/100) x 150
Number of families that actually donated 5 cans of food = 0.8 x 150
Number of families that actually donated 5 cans of food = 120
Number of cans donated by each family = 5
Number of cans donated by 120 families = 5 x 120
Number of cans donated by 120 families = 600
The charity should collect 600 cans of food
Learn more here: https://brainly.com/question/25458888
The population of a town increases every year by 2% of the population
beginning of that year. The number of years by which the total increase of
population be 40% is
Answer:
Step-by-step explanation:
A = Pe^rt
A = 1.4P
r = 0.02
t = ?
e^0.02t = 1.4
ln both sides
0.02t = ln(1.4)
t = ln(1.4)/0.02
t ~ 16.8 years
Use approximations to 1 significant figure , check that your answer to part A ) makes sense
Which line shows the first error in the solution? Three more than a number divided by 4 is -12. What is the number?
Explanation:
On the third line is where the student went from -12-3 to -9. This is not correct. Instead, it should be -12-3 turning into -15.
Think of it like being 12 feet under water (the number -12) and then moving 3 more feet deeper under water. You'll move down 3 to get to -15 to represent being 15 feet under water. Use a vertical number line if needed.
You can also compute -12-3 like 12+3 = 15, then just make everything negative. So -12-3 = -15
I need help with my questions
Answer:
1) (-A+B)=(B-A) is true
Step-by-step explanation:
I am guessing you are looking for which statement is true. The answer is 1, (-A+B)=(B-A), as the others are incorrect.
2) A x 0 = 0, not 1
3) - (-A) = A, not - A
4) A/B will not be the same as B/A unless the values of A and B are 1
Have a nice day!
I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)
- Heather
Calculaţi c.m.m.d.c. și c.m.m.m.c. al numerelor: 18; 120; 30; 450.
anser is
Step-by-step explanation:
618 is the answer
Shown below are the scatter plots for four data sets.
Answer the questions that follow.
