Answers
Answer:
[tex]1. \: 3i[/tex]
2. option D
3. option C
4. option D
5. option C
6. option B
7. option C
8. option D
9. option C
10. option C
Step-by-step explanation:
[tex]1. \: \sqrt{ - 9} [/tex][tex] \sqrt{ - 1(9)} [/tex]
[tex] \sqrt{ - 1} \times \sqrt{ 9} [/tex]
[tex]i \times \sqrt{9} [/tex]
[tex]i \times \sqrt{ {3}^{2} } [/tex]
[tex]i \times 3[/tex]
[tex]3i[/tex]
[tex]2. \: \sqrt{ - 8} [/tex][tex] \sqrt{ - 1(8)} [/tex]
[tex] \sqrt{ - 1} \times \sqrt{8} [/tex]
[tex]i \times \sqrt{8} [/tex]
[tex]i \times \sqrt{ {2}^{2} \times 2 } [/tex]
[tex]2i \sqrt{2} [/tex]
[tex]3. \: \sqrt{ - 80} [/tex][tex] \sqrt{ - 1} \times \sqrt{80} [/tex]
[tex]i \times \sqrt{80} [/tex]
[tex]4i \: \sqrt{5} [/tex]
[tex]4. \: \sqrt{ - 75} [/tex][tex] \sqrt{ - 1} \times \sqrt{75} [/tex]
[tex]i \times \sqrt{75} [/tex]
[tex]i \times \sqrt{ {5}^{2} \times 3 } [/tex]
[tex]5i \sqrt{3} [/tex]
[tex] 5. \: \sqrt{ - 72} [/tex][tex] \sqrt{ - 1} \times \sqrt{72} [/tex]
[tex]i \times \sqrt{72} [/tex]
[tex]i \times ( {6}^{2} \times 2)[/tex]
[tex]6i \sqrt{2} [/tex]
[tex] 6. \sqrt{ - 20} [/tex][tex] \sqrt{ - 1} \times \sqrt{20} [/tex]
[tex]i \times \sqrt{20} [/tex]
[tex]i \times \sqrt{ {2}^{2} \times 5} [/tex]
[tex]2i \sqrt{5} [/tex]
[tex]7. \: \sqrt{ - 27} [/tex][tex] \sqrt{ - 1} \times \sqrt{27} [/tex]
[tex]i \times \sqrt{27} [/tex]
[tex]i \times \sqrt{ {3}^{2} \times 3} [/tex]
[tex]3i \sqrt{3} [/tex]
[tex]8. \: \sqrt{ - 12} [/tex][tex] \sqrt{ - 1 \times 12} [/tex]
[tex]i \times \sqrt{12} [/tex]
[tex]i \times \sqrt{4(3)} [/tex]
[tex]2i \sqrt{3} [/tex]
[tex]9. \: \sqrt{ - 125} [/tex][tex] \sqrt{ - 1} \times \sqrt{125} [/tex]
[tex]i \times \sqrt{ {5}^{2} \times 5 } [/tex]
[tex]5i \sqrt{5} [/tex]
[tex]10. \: \sqrt{ - 180} [/tex][tex] \sqrt{ - 1} \times \sqrt{180} [/tex]
[tex]i \times \sqrt{ {6}^{2} \times 5 } [/tex]
[tex]6i \sqrt{5} [/tex]
Hope it is helpful...Related Questions
Karen finished watching a movie at 1:10 pm. The movie lasted 1 hour and 38 minutes. What is the time that karen started watching the movie
Answers
Answer:
11:32:00 AM
Step-by-step explanation:
HELPPP ILL GIVE U POINTS
Answers
NO LINKS OR FILES ONLY ANSWER IF YOU KNOW IT PLEASE
Answers
Answer:
c
Step-by-step explanation:
100% is the whole graph so 23% of 100 is 23
Four hundred randomly selected working adults in a certain state, including those who worked at home, were asked the distance from their home to their workplace. The average distance was x-bar equal to 8.84 miles. Assume that the standard deviation of the population of all working adults in that state is 2.70 miles. Construct a 99% confidence interval for the mean distance from home to work for all residents of this state. Droble
Answers
Answer:
The 99% confidence interval for the mean distance from home to work for all residents of this state is between 8.49 and 9.19 miles.
Step-by-step explanation:
We have that to find our [tex]\alpha[/tex] level, that is the subtraction of 1 by the confidence interval divided by 2. So:
[tex]\alpha = \frac{1 - 0.99}{2} = 0.005[/tex]
Now, we have to find z in the Z-table as such z has a p-value of [tex]1 - \alpha[/tex].
That is z with a pvalue of [tex]1 - 0.005 = 0.995[/tex], so Z = 2.575.
Now, find the margin of error M as such
[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]
In which [tex]\sigma[/tex] is the standard deviation of the population and n is the size of the sample.
[tex]M = 2.575\frac{2.7}{\sqrt{400}} = 0.35[/tex]
The lower end of the interval is the sample mean subtracted by M. So it is 8.84 - 0.35 = 8.49 miles.
The upper end of the interval is the sample mean added to M. So it is 8.84 + 0.35 = 9.19 miles.
The 99% confidence interval for the mean distance from home to work for all residents of this state is between 8.49 and 9.19 miles.
Find the value of x in the triangle shown below
Answers
Answer:
30 hhhhhhhhhhhhhhhhhh
Answer:
30
Step-by-step explanation:
Remember, every triangle is 180 in all so add up what you see and subtract that from 180.
102+48= 150
180-150= 30
Hope it helps.
What is the volume of a regular triangular pyramid with an apothem of 2.3ft, a side length of 8ft and a height of 25 feet
Answers
230FT
Regular tetrahedron
Solve for volume
V≈1.15×107
Use the formula for the volume of a triangular pyramid: V=13Ah , where A = area of the triangular base, and H = height of the pyramid.
What is the sum of the interior angles of the polygon shown below?
Answers
(7-2) x 180=
(5)(180)=900
Answer:
900°
Step-by-step explanation:
formula:
(n-2) x 180°
n = number of sides of polygon
5 x 180 = 900°
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
The cost of 15 pounds of cat food is $48.75. What is the cost per pound of cat food?
Answers
Answer: I'm pretty sure it's $3.25.
Step-by-step explanation: Take $48.75, divide it by the 15 pounds and get the amount per pound of cat food, $3.25.
Answer:
the answer to this question 3.25
6z3+2z2-9
What is the constant
Answers
Answer:
.; i don't know the constant but i know that the degree is 3 Step-by-step explanation:
move two choices to the blanks to correctly complete the sentences.
Answers
Answer:
(A) There should have been 5 outcomes of HT
(B) The experimental probability is greater than the theoretical probability of HT.
Step-by-step explanation:
Given
[tex]S = \{HH,HT,TH,TT\}[/tex] -- Sample Space
[tex]n(S) = 4[/tex] --- Sample Size
Solving (a); theoretical outcome of HT in 20 tosses
First, calculate the theoretical probability of HT
[tex]P(HT) = \frac{n(HT)}{n(S)}[/tex]
[tex]P(HT) = \frac{1}{4}[/tex]
Multiply this by the number of tosses
[tex]P(HT) * n= \frac{1}{4} * 20[/tex]
[tex]P(HT) * n= 5[/tex]
Solving (b); experimental probability of HT
Here, we make use of the table
[tex]P(HT) = \frac{n(HT)}{n(S)}[/tex]
[tex]P(HT) = \frac{6}{20}[/tex]
[tex]P(HT) = 0.30[/tex] ---- Experimental Probability
In (a), the theoretical probability is:
[tex]P(HT) = \frac{1}{4}[/tex]
[tex]P(HT) = 0.25[/tex] ---- Experimental Probability
By comparison;
[tex]0.30 > 0.25[/tex]
between which pair of decimals should 1/4 be placed on a decimal line? is it 0.8and0.9 or 0.2 &0.8 or 0.6 & 0.8 or 0.5 & 0.7
Answers
Answer:
0.2 & 0.8
Step-by-step explanation:
1/4 is 0.25 and 0.25 is between the pair
i give brainliest help
Answers
Answer:
B,F
i think
Step-by-step explanation:
Have a nice day
22,19,16,13 what is the 37th term
Answers
Answer:
-86
Step-by-step explanation:
3x10=30
22-3=19-3=16-3=13
so if its tthe 37th term, lets do 30x3=90
now 13-90=-77
-77=34th term
now just -3 until 37
-80
-83
-86
the 37th term is -86
someone help me please
Answers
Answer:
c = 7.4
Step-by-step explanation:
Pythagoras Theorem
8². - 3 ². = c ².
√64 -√9 = c².
√55 = c². = 7.4161984871².
c = 7.4
A={the letters of the word ,HIPPOPOTAMUS}
Answers
•ω• Hewo fren!
☆☆●◉✿Answer:✿◉●☆☆
The letters of hippopotamus is H-I-P-P-O-P-O-T-A-M-U-S
☆☆●◉✿Step-by-step explanation:✿◉●☆☆
I’m sowy, I didn’t really understand your question... did you want to learn about a hippopotamus? If so, please tell me in the comments I would answer there too!
HOPE I HELPED! ∧∧
→⇒brainliest please? ∑(OΔO )♥♥︎
2. The ordered pairs represent the ages of school
employees and the distance they drive to work
Which relation is a function?
A. {(26, 10), (31,9), (31, 12), (44, 18)}
B. {(29, 15), (29, 18), (33, 15), (33, 18)}
C. {(27, 11), (29,7), (34, 8), (34, 27)}
D. {(27, 11). (29, 11), (31, 11), (33, 11)}
Answers
how many times would you expect to select purple?
Answers
Answer:
I believe the answer is J: 40 times
Step-by-step explanation:
Answer:
Hello! answer: 40 times
Step-by-step explanation:
9/27 × 120 = 40 times therefore 40 is the answer
Every month, Ms. Jones pays her car loan through automatic payments (withdrawals) from her savings account. She pays the same amount on her car loan each month. At the end of the year, her savings account balance changed by −$3,702 from payments made on her car loan.
Part A
What is the change in Ms. Jones' savings account balance each month due to her car payment?
Part B
Describe the total change to Ms. Jones’ savings account balance after making six monthly payments on her car loan.
Answers
Answer:
k
Step-by-step explanation:
factorize
3a⁴+18a²-21-2b-3b²
Answers
Answer:
the expression is not factorable with rational numbers.
Answer:
The closest thing i can get to here is
38a^4-21- 7b^2
Step-by-step explanation:
thats the smallest i could get it to hope it helps <3
What is the reverse of add 197?
Answers
Answer:
791 should be the answer
Step-by-step explanation:
GIVING BRAINLIEST FOR CORRECT ANSWER WITH EXPLANATION
Answers
Answer:
Step-by-step explanation:
THE ANSWER IS : C
=
2
π
r
=
2
π
71
≈
446.10616
Help me please help ASAP help you will get brainliest help me please please help ASAP ASAP please
Answers
Answer:
where's the question??
sorunu göremedim lütfen sorunu at
Please answer number 4 for brainliest
Answers
Answer:
Number 4. 46 gallons of paint
Step-by-step explanation:
30 x 20 x 10 = 6000
6000 / 130 = 46
I told you i am bad at this type of stuff but, I am confident that this is right.
Constant of Variation
For the function defined by y = 1/x², y varies inversely as what quantity?
a. x
b. 2x
c. y
d. x²
Please select the best answer from the choices provided
Answers
Answer:
D. x²
Step-by-step explanation:
I calculated it logically
Twelve students tried out for the cheerleading squad. Six students were selected. What is the ratio of the students selected to those trying out
Answers
Answer:
1 : 2
Step-by-step explanation:
Twelve in total tried out for the cheering squad. The students selected were only 6 so the ratio would be 6 : 12 is shortened to 1 : 2.
Hope this helps
2. Pens come in a package of 6, while notebooks
come in a package of 5. Sill wants to purchase the
smallest number of pens and notebooks so that she
will have exactly 1 pen per notebook. How many
packages of pens and notebooks should Jill buy?
A. 3 packages of pens, 4 packages of
notebooks.
B. 4 packages of pens, 4 packages of
notebooks.
C. 5 packages of pens, 5 packages of
notebooks.
D. 5 packages of pens, 6 packages of
notebooks.
Answers
Answer:
D. 5 packs of pens and 6 packs of notebooks
Step-by-step explanation:
5 packs * 6 per pack = 30 pens
6 packs * 5 per pack = 30 notebooks
PLEASE HELP ME!! Kenji is traveling in Europe and renting a car. He is used to thinking of gasoline amounts in gallons, but in Europe it is sold in liters. After filling the gas tank, he notices it took 39 L of gas. How many gallons is that?
Answers
Answer:
10.30721
Step-by-step explanation:
This requires conversion, this is Liters to Gallons.
1 LITER= 0.26417205
so knowing this info. we just plug in
39 L = 10.30721 gallons
Hope this helped! :)
i will give a brainlist and like please help me....
but if it is not true answer i will report
Answers
Answer:
1.6m is the answer
Step-by-step explanation:
Answer: so you can give branliest to the other guy
Step-by-step explanation:
what is the Difference between elimination method and indirect method
Answers
Answer:
Indirect method actually follows the same set of procedure as the direct method except that it begins with net income unlike the elimination method reduced a given system that indicates a system has no unique solution.
there are 32 students at a pizza party. each students ate 1/4 pizza how many whole pizzas did the students eat altogether?
Answers
Answer:
8
Step-by-step explanation: