[tex]simplify \sqrt{21 - 20i} [/tex]
Answers
Answer:
o. k this is a required answere
![[tex]simplify \sqrt{21 - 20i} [/tex]](https://brainimage.s3.us-east-005.backblazeb2.com/answers/attachments/8l0FHKjFRmHXsQyz4Aa8l5jwFu3ewMYf.jpeg)
Related Questions
using digits 3,6,1 and 5 write the greatest decimal number less than 1 that can be formed without repeating any digit. write it in words
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Six tenths, five hundredths, three thousandths, one ten thousandth.
A recent study was conducted in which a random sample of men and a random sample of women were surveyed about whether they were fans of a professional football team. The study found that 39 percent of men in the sample were fans and 22 percent of women in the sample were fans. A 99 percent confidence interval for the difference in the proportion of fans of a professional football team between men and women was reported as (0.133,0.207) . Which of the following statements is the best interpretation of the interval?
a. The difference in the percents of fans of a professional football team between men and women is 17%.
b. There is a 99% chance of finding a difference between 13.3% and 20.7% for the percents of men and women who are fans of a professional football team.
c. We are 99% confident that the percent of men who are fans of a professional football team exceeds that of women by at least 20.7%.
d. We are 99% confident that the difference in the sample percents of men and women who are fans of a professional football team is between 13.3% and 20.7%.
e. We are 99% confident that the difference in the population percents of all men and women who are fans of a professional football team is between 13.3% and 20.7%.
Answers
Answer:
e. We are 99% confident that the difference in the population percents of all men and women who are fans of a professional football team is between 13.3% and 20.7%.
Step-by-step explanation:
x% confidence interval:
A confidence interval is built from a sample, has bounds a and b, and has a confidence level of x%. It means that we are x% confident that the population mean is between a and b.
In this question:
99% confidence interval for the difference in the proportion of fans of a professional football team between men and women is of (0.133, 0.207)
The interpretation is that we are 99% sure that the true proportion is in this interval for the entire population, so the correct answer is given by option e.
a number y divided by 6 is no more than 2
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Answer:
2
Step-by-step explanation:
The average age of students in a class is 8 years and 5 months. Express the age in seconds.
Answers
Answer:
its like 4 yrs
Step-by-step explanation:
Answer:
265,248,000 seconds
Step-by-step explanation:
Assumptions are going to be made. No leap years so every year is 365 days, and each month is 30 days. 8x365+5x30=3070 days
24x60x60=86400 seconds in one day
Multiply those two together to get the answer.
Given a right triangle ABC, if the measure of angle A is 77', and cos (77) = sin(0).
what is the value of 0 ?
Answers
==========================================================
Rule:
If cos(A) = sin(B), then A+B = 90
This can be proven through the use of drawing a right triangle with acute angles A and B. Let's say C is the 90 degree angle.
Then note how cos(A) = adjacent/hypotenuse = AC/AB while sin(B) = opposite/hypotenuse = AC/AB. We see that both evaluate to AC/AB. So this confirms cos(A) = sin(B) is true.
The condition that A+B = 90 is from from the fact that any pair of acute angles of a right triangle are complementary angles.
-------------------------
Using that rule, we can say
cos(77) = sin(theta)
leads to
77+theta = 90
and that solves to
theta = 90-77 = 13
Courtney sold 48 cantaloupes at the farmers' market and had 23 left. Which equation could be used to find x, the number of cantaloupes Courtney had originally?
Answers
Hi there!
48-x=23
23+x=48
those would be the equatipns to find x....
Answer:
uwu
Step-by-step explanation:
uwu
Check your solution!
5 • x = 12
Answers
Answer:
x = 2.4
Step-by-step explanation:
isolate x \/
x=12/5
12/5 = 2.4
Answer:
i dun know wut u mean by check ur solution but I'll anyways solve it
x=12/5
x=2.4
I hope it helps
-3/10 + 5/20
Simplify if needed etc
Brainliest
Answers
Answer:
-1/20
look at the pic i have sent you, this might help you!
first time taking a picture but some one help me, this is the last question and I want to die.
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Answer:
Step-by-step explanation:
If the markup rate is 50%, then the cost of a shirt that regularly sells for $60 is $40. true or false?
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Answer:
false
Step-by-step explanation:
half of 60 dollars is 30
think of it as half of 6
write an expression that is equivalent to (x-5)²
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Answer:
x²-10x+25
Step-by-step explanation:
expand the expression
(x-5)²
(x-5)(x-5) distribute
x²-5x-5x+25
combine like terms
x²-10x+25
if you get x^2-25 then you're only squaring the x and 5, you have to square the whole equation (x-5)(x-5) is doing (x-5)^2. for example, if you just had (5)^2 you would take the whole "equation" which is 5 and times that equation by itself.
Find the volume of a rectangular prism with dimensions 21 in. by 20 in. by 19 in., to the nearest hundredth cubic foot
Answers
Answer:
The dimensions of a rectangular prism are 21 in. by 20 in. by 19 in.
To find:
The volume of the rectangular prism.
Solution:
Let the length, breadth and height are 21 in, 20 in and 19 in respectively.
Volume of the rectangular prism is
[tex]V=Length\times Breadth\times Height[/tex]
[tex]V=21\times 20\times 19[/tex]
[tex]V=7980[/tex]
Therefore, the volume of the rectangular prism is 7980 cubic inches.
h(t)= 50- t/5
h(35)=
Answers
Answer:
h(35) = 43
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Function NotationStep-by-step explanation:
Step 1: Define
h(t) = 50 - t/5
h(35) is t = 35
Step 2: Evaluate
Substitute in t: h(35) = 50 - 35/5Divide: h(35) = 50 - 7Subtract: h(35) = 431. Given: Angle 2 is 65 degrees.
(a) What is the angle measurement of Angle 4. Explain the angle relationship used and show your work.
(b) What is the angle measurement of Angle 7. Explain the angle relationship used and show your work.
(c) What is the angle measurement of Angle 3. Explain the angle relationship used and show your work.
Answers
Answer:
Part A. Angle 4 is 115 Part B. angle 7 is 65 Part C angle 3 is 65
Step-by-step explanation: Part A. Is a corresponding angle of 1 and 4 Part B. alternate exterior angle of 2 Part C. corresponding angle of 7
Only one of the comparisons below is correct. Which is correct? What benchmark was used in your answer?
ANSWERS ARE:
2/3<1/2; I used 1/2 as a benchmark.
1/2=3/5; I used 1/4 as a benchmark.
2/3<9/10; I used 3/4 as a benchmark.
3/4<2/3; I used 1/2 as a benchmark.
Answers
Answer:
2/3<9/10; I used 3/4 as a benchmark.
Step-by-step explanation:
2/3<1/2; I used 1/2 as a benchmark.
2/3 = 0.(20/3) = 0.667
1/2 = 0.(10/2) = 0.5
So this is wrong, as 0.667 > 0.5.
1/2=3/5; I used 1/4 as a benchmark.
1/2 = 0.(10/2) = 0.5
3/5 = 0.(30/5) = 0.6
0.5 != 0.6, so this is wrong.
2/3<9/10; I used 3/4 as a benchmark.
2/3 = 0.(20/3) = 0.667
9/10 = 0.(90/10) = 0.9
So this is correct, as 0.667 < 0.9
3/4<2/3; I used 1/2 as a benchmark.
3/4 = 0.(30/4) = 0.75
2/3 = 0.(20/3) = 0.667
0.75 > 0.667, so this is wrong.
We want to cover the poster with small stamps. We don't have any to begin with and we can't buy partial bags of stamps. Each bag of stamps 110.5 in covers . How many whole bags of stamps will we need to buy in order to completely cover the poster?
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Answer:
2243.7?
Step-by-step explanation:
Answer:
not right i think
Step-by-step explanation:
22. Write the inequality for the graph shown below.
Help. Please.
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Steps are on paper
If you need more explanation about this, comment
Write the equation for the perpendicular bisector of a segment that has endpoints (1, –4) and (3, 2).
Answers
Answer:
y = -⅓x-⅓
Step-by-step explanation:
Instant brainliest please help.
Answers
Answer:the second one
Step-by-step explanation:
Why is sum of yi.ui zero
Answers
Answer:
Q
=
n
i
=
1
(
Yi
−
(
β
0
+
β
1
X
i))
2
4. Solve for x in each diagram.
a.
X°
108°
156°
Answers
Answer:
x = 48°Step-by-step explanation:
108° + 24° + x° = 180°132° + x° = 180°x° = 180° - 132°x= 48°MARK ME AS BRAINLISTPLZ FOLLOW MRSolve the inequality 5 - 4x > -x+8
Answers
Answer:
x<-1
Step-by-step explanation:
5-4x>-x+8
adding 4x to both sides we get
5>3x+8
subtracting eight from both sides we get
-3>3x
dividing by three on both sides we get
-1>x
or x<-1
hope that helps if it does please mark my answer as brainliest.
What is the slant height for the given pyramid to the nearest whole unit height
Answers
Answer:
Step-by-step explanation:
The blue section is a right triangle. Use the Pythagorean Theorem to find the hypotenuse.
base of right triangle = 6 cm
height of right triangle = 8 cm
hypotenuse = √(6²+8²) = √100 = 10 cm
Your school club is selling hotdogs at a basketball game. The supplies cost $120. You charge $2.50 for each hotdog. Write a function you can use for finding the profit y for selling x number of hotdogs.
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you lose 120 dollars on supplies, and every hotdog you sell you gain 2.50
Anybody know how to do this??
Answers
Answer:
Second option: x= (23.5)(1.18)
Step-by-step explanation:
It has the total and the 1 for the tip to include the original price.
Answer:
option 2:- x= (23.5)(1.18)
Step-by-step explanation:
it includes the whole amount plus the tip to be paid after dinner..
15 POINTS! GIVE REAL ANSWERS PLEASE. HELP WOULD BE MUCH APPRECIATED THANKS!
Which algebraic expression does this model represent?
*IMAGE LINKED*
4x+16
4(x+3)
x+34
-4(x+3)
Answers
Answer:
It would be 4(X + 3)
Step-by-step explanation:
There are 4 Xs and 12 ones, so the equation is 4X + 12 or 4(X + 3).
I NEEDS SOME HELP PLS WITH THESE TWO QUESTIONS
♀️
Answers
The second question’s answer is: D. Left 6 & Up 15
Hope this helps!! :)
100% of what equals 12
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Answer:
12
Step-by-step explanation:
Heres a challenge!! Marking most Brainly:)))
Answers
Answer:
(30, 90) is a viable solution
(50, 160) is a nonviable solution
Step-by-step explanation:
the park is 3 miles long and 2 miles wide. manuel walked around the park two times. how many miles did he walk in all?
(im pretty sure im wrong but is the answer 12?)
Answers
Answer:
20 miles.
Step-by-step explanation:
You're on the right track with your answer of 12. You added the sides you knew & multiplied by 2.
I'm picturing the park like a rectangle. So there are two sides that are 3 miles long, and 2 sides that are 2 miles long. For perimeter, we add all the sides.
3 + 3 + 2 + 2 = 10. And he walked the park twice, so 2 x 10 = 20