Find the quotient of the complex numbers. Express your answer in
trigonometric form.
z = 7(cos15° + i sin15)
zz = 2(cos1 10° + i sin 110)
HELP ASAP!
Answer:
answer is c
Step-by-step explanation:
On the playground, 1/4 of the students are on the jungle gym, and 1/3 f the students are playing kickball. What part of all the students on the playground is on the jungle gym or playing kickball?
Answer:
7/12 of the students
Step-by-step explanation:
So first you would need to get your fractions to have the same denominator. When your trying to get your fractions to get the same denominato. You must multiply both the numerator and denominator.
The most common denominator from 1/4 and 1/3 is 12. So you multiply both the numerator and denominator of 1/4 by 3. So then your new fraction is 3/12. Now you multiply 1/3, both numerator and your denominator by 4. Then your new fraction is 4/12. So The last step is to add both of your numerators. Never add the denominators together. And at last you have your answer. 7/12.
(Hope this helps! Brainliest?)
Which of these is the standard form of the following function?
f(x) = -9(x + 5)2 + 4
f(x) = 9x2 − 90x − 221
f(x) = -9x2 − 90x − 221
f(x) = 9x2 − 180x + 221
f(x) = -9x2 − 180x − 221
Answer:
the answer is B) -9x2 -90x -221
3.(06.01)
What is the value of the expression 5^2 +2^2? (2 points)
Answer:
29
Step-by-step explanation:
5^2=25
2^2=4
25+4=29
Answer: 29 is the final answer
Step-by-step explanation: Have a nice day - Lily ^_^
What is the measure of angle x? Show or explain how you know.
Answer:
65 degrees
Step-by-step explanation:
y is a right angle and a is 30 degrees. this means that the supplementary engle of x is 45 plus 70 which is 115. 180-115 = 65 degrees.
find the linear relationships
Answer:
everytime the x goes up by 3, the y goes down by 3
Step-by-step explanation:
this is the question
Answer:(1,1)
Step-by-step explanation:
Its asking where both linear and curve lines are being hit,
(fxg)(0)= 1,1
Haven earned $165 working as a babysitter. When she goes back to school, she needs more than $192 to buy a new coat How
much must she eam before returning to school? Write and solve an inequality to represent this scenario.
Answer:
$27
Step-by-step explanation:
A mine worker is in a tunnel 25 feet below the ground. He descends another 13 feet. What is his final position? i already know that part of the answer is -25 -
but is it -25 - 13 or -25 - -13
Answer: -25 - 13
This simplifies to -38
So the worker's final position is 38 feet below the ground.
A diagram is shown below.
==========================================================
Explanation:
Draw a vertical number line. Plot 0 on it to indicate the ground level, or surface level. Then plot -25 on it, which is below 0. This is 25 feet below the ground.
To move 13 further feet downward, we will subtract 13 from -25. Subtracting a positive means we move downward.
For example, start at the 30th of a building. This is marked as +30 or just 30 on the vertical number line. Subtract off 13 to go down 13 floors and we have 30-13 = 17. So after going down 13 floors, we're at the 17th floor now.
Going back to the problem at hand, we start at -25 and subtract off 13 to get the final answer -25 - 13
The answer is not -25 - -13 and it is not -25 - (-13). This is because the two negatives cancel to be a positive. So -25 - (-13) becomes -25+13. Here we're starting at -25 but then going up 13 feet. Instead we want to go down 13 feet.
------------------------------------
After we determine the expression is -25 - 13 we will effectively add the positive versions of those numbers like so
25+13 = 38
But the final answer is negative because we're starting underground and moving further underground.
We can write it like this
-25 - 13 = -(25+13) = -(38) = -38
Therefore, if the worker starts off 25 feet underground, and moves 13 feet downward, then the worker ends up 38 feet underground. Again, use the vertical number line to help see this.
Check out the diagram below.
(Multiple choice/ brainiest will be given)
Can I please get some help with this answer?
Answer: d
Step-by-step explanation:
If the area of a rectangle is x2 – 13x + 40, what are the lengths of
the two sides?
Answer:
5 and 8
Step-by-step explanation:
quadratic formula.
-(b)+sqrt(b)^2-4(a)(c)
^ans
divide the whole thing by 2(a).
If the formula isn't clear, search quadratic formula up.
Which is the least amount?
[A] 1.20 [B] 0.21 [C] 1.02 [D] 1.020
The Answer Is:
B (0.21)
pls help asap
A circle is subdivided by a central angle of 90 degrees. The length of the subtended arc is 25 mm. What is the radius of the circle?
Answer:
15 .9
Step-by-step explanation:
Answer:
2250
Step-by-step explanation:
All you do is 90x25 which is 2250
pls mark brainliest
Your doctor told you to eat 25 25 grams of fiber each day. You had 4 4 grams of fiber for breakfast. What percent of the 25 25 grams of fiber have you eaten so far?
Answer: 16%
Step-by-step explanation:
Grams of fiber recommended by doctor = 25 grams
Grams of fiber had for breakfast = 4
Percentage of gram ate = Grams had for breakfast / Grams recommended by doctor × 100
= 4/25 × 100
= 4 × 4
= 16%
Answer: 16%
Step-by-step explanation:
Find the area of the shape shown below plz help
Answer:
60? I'm really not sure mate, i'm really sorry if it's wrong.
Step-by-step explanation:
12 34/50 / 11 30/25
no im not giving the first correct person brainliest
only idiots do that
Answer: 317/305 or 1 12/305
Step-by-step explanation: Reduce the expression, if possible, by cancelling the common factors.
Name the triangle.
please help
Answer:
c. right =90 that's the as
What is the perimeter, in terms of x, of the triangle shown here?
(7x2 - 12)
(-5x + 30)
(3x2 + 4x)
Answer:
The perimeter of triangle is: [tex]\mathbf{10x^2-x+18}[/tex]
Step-by-step explanation:
We need to find perimeter, in terms of x, of the triangle shown here.
The length of side 1: [tex](7x^2 - 12)[/tex]
The length of side 2: [tex](-5x + 30)[/tex]
The length of side 3: [tex](3x^2 + 4x)[/tex]
The formula used to find perimeter of triangle is: [tex]Perimeter\: of\: triangle=Sum\:of\:length\:of\:all\:sides[/tex]
Putting values and finding perimeter:
[tex]Perimeter\: of\: triangle=Sum\:of\:length\:of\:all\:sides\\Perimeter\: of\: triangle=(7x^2 - 12)+(-5x + 30)+(3x^2 + 4x)\\Perimeter\: of\: triangle= 7x^2-12-5x+30+3x^2+4x\\Perimeter\: of\: triangle=7x^2+3x^2-5x+4x-12+30\\Perimeter\: of\: triangle=10x^2-x+18[/tex]
So, The perimeter of triangle is: [tex]\mathbf{10x^2-x+18}[/tex]
Elle earned $45 last month babysitting. This
month she earned $35. What is the
approximate percent of decrease?
Answer:
40%
Step-by-step explanation:
Simplify the expression by combining like terms.
n + 4n - 7n - 1
Answer:
-2n-1
Step-by-step explanation:
n +4n-7n-1
-2n-1
How do I find the rule of a linear table ?
Answer:
start by checking that it's a linear relationship that's occurring by having a look at the difference in our X in each step against the difference in our Y in each step.
Step-by-step explanation:
i need help please!!
Answer:
Step-by-step explanation:
do the thing times 2
Mike a local auto mechanic charges a certain amount to diagnose and repair car he bases his price on the amount of time that it takes for the car to be repaired what is the rate of change in the graph.
Answer:
200
Step-by-step explanation:
The time spent repairing the car is five hours while the total cost is about 200 bucks
What is x in 8x - 5 = -37
Answer:
If i'm doing this correctly it is 6?
Step-by-step explanation:
Answer:
x= -4
Step-by-step explanation:
8x - 5 = -37
+ 5 +5 add five to both sides of the equation so you can isolate the x
8x = -32
/8 /8 then divide 8 by both sides of the equation
x = -4
and then you get ur answer
Hope this helps :)
which is the best estimate for the mass of a desktop computer
a 500 g
b 10 l
c 10 kg
d 100 g
Mrs. Merritt, has 75% of her $300 dollar goal, how much money does she have?
Answer:
She has 225 dollars
Step-by-step explanation:
75% of her $300
Change the percent to decimal form
.75 * 300
225
She has 225 dollars
The answers for fall math test 8th grade
Answer:
ok
Step-by-step explanation:
9x3^15 can be written as 3^n. What is the value of n
Answer:
so n=17
Step-by-step explanation:
9=3²
3²×3¹⁵= 3¹⁷
please mark the brainliest❤❤
Evaluate - 3x + 2y when x = 2 and y = 3
Answer:
the answer is 0
Step-by-step explanation:
Answer:
0
Step-by-step explanation:
-3x + 2y
-3(2) + 2(3) ## Substitution
-6 + 6 ## Distributive
0 ## Addition
ALGEBRA Evaluate the expression when X-
2 and = is - 1/5
Answer:
x=9/5
Step-by-step explanation:
x-2=-1/5
x=9/5