A bacteria population is tripling every hour. By what factor does the population change in 1/2 hour? Select all that apply.
Answers
Answer:
B but there might be more, look below. I didn't have time to calculate the other answers.
Step-by-step explanation:
Well, it is growing x3 each hour, so each half hour it's 1.5...
So whichever is equal to 1.5 is the answer, like B. There might be more.
Related Questions
Using the net below, find the surface area
of the pyramid.
6 km
3 cm
3 cm
Surface Area =
[?] cm2
Enter
Answers
Answer:
its not 46.11 its 47 your welcome for the help :)
Step-by-step explanation:
The dot plots show the number of pages Mandee read per day for two books in a series.
Book 1
Book 2
.
A
20 21 22 23 24 25 26
Number of Pages Read
20 21 22 23 24 25 26
Number of Pages Read
The mean absolute deviation for each book is 1.25. The difference between the median number of pages read per day for each book is how
many times the mean absolute deviation?
OA
5
ОВ.
2
Ос.
4
OD
3
Answers
Answer:
Step-by-step explanation:
2
What is the value of x in the figure below? If necessary, round your answer to
the nearest tenth of a unit.
X
12
D 4 B
A. 3.1
O
B. 12
C. 6.9
O D. 4
Answers
Answer:
O A. 3.1
Step-by-step explanation:
it's correct if I'm rwong (*´ω｀*)
Answer: The answer is C. 6.9
Step-by-step explanation:
Suppose X-B(47,.2). Find the mean of x.
O A 10.1
OB. 9.4
OC 9.7
OD.8.9
Answers
Answer:
D. 8.9Step-by-step explanation:
[tex]{{correct me if i am wrong}}}[/tex]
PLEASE I NEED HELP ITS DUE SOON
Answers
Answer:
Third choice from top to bottom.
Step-by-step explanation:
The total amount of students would be exactly - 220 students. So that means reading would be exactly 20% of the students, as of 40/220 = 0.2 = 20%. That means automaticially the third choice would be correct, but let's do more calculations to make sure- 55/220 = 25%, 66/220 = 30%. That means that our answer is in fact correct.
Find the surface area of the prism. Round the final decimal answer to the nearest tenth if necessary.
Answers
Answer:10.6
Step-by-step explanation:
Help with imaginary numbers please!!!
Answers
Problem 1
Answer: -7 + 8i------------------
Work Shown:
[tex]-\sqrt{49}+\sqrt{-64}\\\\-\sqrt{7^2}+\sqrt{-1*8^2}\\\\-\sqrt{7^2}+\sqrt{-1}*\sqrt{8^2}\\\\-7+i*8\\\\-7+8i\\\\[/tex]
=============================================
Problem 2
Answer: -2sqrt(6) + 10i------------------
Work Shown:
[tex]\sqrt{-100}-\sqrt{24}\\\\\sqrt{-1*10^2}-\sqrt{4*6}\\\\\sqrt{-1*10^2}-\sqrt{2^2*6}\\\\\sqrt{-1}*\sqrt{10^2}-\sqrt{2^2}*\sqrt{6}\\\\i*10-2*\sqrt{6}\\\\-2\sqrt{6}+10i\\\\[/tex]
=============================================
Problem 3
Answer: 4 - 9i------------------
Work Shown:
[tex]-\sqrt{-81}+\sqrt{16}\\\\-\sqrt{-1*9^2}+\sqrt{4^2}\\\\-\sqrt{-1}*\sqrt{9^2}+\sqrt{4^2}\\\\-i*9+4\\\\4-9i\\\\[/tex]
=============================================
Problem 4
Answer: 8i------------------
Work Shown:
[tex]\sqrt{-1}*2\sqrt{16}\\\\\sqrt{-1}*2\sqrt{4^2}\\\\i*2*4\\\\8i\\\\[/tex]
We could express this as 0+8i, but I think 8i looks much cleaner.
A woman needs to work out how long it will take to drive to York.
She checks the journey on a website.
The distance from her house to York is 80 miles.
20 miles of the journey are through roadworks with a speed restriction of 40mph.
She should drive the rest of the journey at an average speed of 50mph
Answers
Answer:
It will take her 1hr 42mins.
Using the formula of speed, It will take 1 hour 42 minutes to drive to New York.
What is formula of speed?
The formula for Speed is given as [Speed = Distance ÷ Time].
The formula for time is given as [Time = Distance ÷ Speed ].
Time taken to drive to New York is :
= (20 miles / 40 mph) + ((80 - 20) miles /50 mph)
= 30 minutes + 1 hour 12 minutes
= 1 hour 42 minutes
Learn more about formula of speed here
https://brainly.com/question/3004254
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For every 3,000 chocolate covered strawberries manufactured at a candy factory, about 450 are considered rotten before the time of packaging and are thrown away.
If 93 chocolate covered strawberries were thrown away last week because they were
rotten, how many chocolate covered strawberries were manufactured?
Answers
Answer:
did u figure it out?
Step-by-step explanation:
if f(x)=x^2 + x find f(x+2)
Answers
Answer:
x^2+5x+6
Step-by-step explanation:
You might need: 2 Calculator
AB =
Round your answer to the nearest hundredth.
Answers
Answer:
AB = 4,60
Step-by-step explanation:
Sin50° = 6/AB
0,766044431 * 6= AB
4,596266659 = AB
AB = 4,60
Solve for x.
[tex] \frac{6}{x - 3} - \frac{12}{x + 1} = 1 [/tex]
Use the digits 0-9 to enter the solution with the greatest value.
Answers
Answer:
[tex]\boxed{x=5},x=-9[/tex]
Step-by-step explanation:
To rid the denominators, multiply both sides by [tex](x-3)(x+1)[/tex].
We get:
[tex]6(x+1)-12(x-3)=(x-3)(x+1)[/tex]
Simplifying, we have:
[tex]6x+6-12x+36=x^2-3x+x-3,\\-6x+42=x^2-2x-3,\\x^2+4x-45=0[/tex]
Solving, we get:
[tex]x^2+4x-45=0,\\(x-5)(x+9)=0,\\x=5,x=-9[/tex]
Therefore, the solution with the greatest value is [tex]x=\boxed{5}[/tex]
Ngân hàng trung ương bán trái phiếu chính phủ
Answers
Answer:
Trong hoạt động mở, Fed mua và bán chứng khoán chính phủ trên thị trường mở. Nếu FED muốn tăng cung tiền, nó sẽ mua trái phiếu chính phủ. ... Ngược lại, nếu FED muốn giảm cung tiền, nó sẽ bán trái phiếu từ tài khoản của mình, do đó thu về tiền mặt và loại bỏ tiền ra khỏi hệ thống kinh tế.
Step-by-step explanation:
em yêu
Will give brainlest!!! Please view picture for question.
Answers
Step-by-step explanation: 6 4 12 00
V = a²(h/3) where a is the length of a side s and since h = (2/3)s
V = s²(2s/3)/3
V = s³(2/9) I'll go the D
Using the results from a survey of 1050 elibible voters, an approximate 98% confidence interval estimate for the proportion of voters who claimed to have voted in the last presidential election was (0.61,0.678). Links to statistical tables:
NormalTable_Negz
NormalTable_Posz
Table_Df1-35
Table_D136+
Required:
What is p rounded to three decimal places?
Answers
Answer: p= 0.644
Step-by-step explanation:
We know that, the confidence interval for population proportion is given by :-
sample proportion(p) ± Margin of error(E)
Given confidence interval : (0.61,0.678)
i.e. p- E = 0.61 ... (i)
p+E = 0.678 ...(ii)
Adding (i) and (ii), we get
2p = 1.288
p= 0.644
From (ii),
E= 0.678-0.644
E= 34
Hence, the value of p = 0.644
Zach ate breakfast at a restaurant. The bill came to $76. If he left a 15% tip, how much was the tip?
Answers
$11.40, making the total fee $87.40
.
Simplify the expression.
(–2 – c )(–1)
Answers
Answer:
=c+2
Step-by-step explanation:
Classification of respondents only on the basis of gender is an application of Select one:
1)Ordinal Scale
2)Ratio Scale
3)Nominal Scale
4) Interval Scale
Answers
Can someone please help me?
Answers
Answer:
C
Step-by-step explanation:
I found the answer online( didnt know how to solve it)
Sets of odd sum=9
Sets of product of 6=3
Total sets=18
So (9+3)/18
Equals 12/18
Which equals 2/3
A car is 180 inches long.A truck is 75% longer than the car
How long is the truck?
Answers
A construction crew is using heavy equipment to dig a hole in which the foundation of a house will be built. The hole
will be in the shape of a right rectangular prism with dimensions of 4 feet in depth, 100 feet long, and 50 feet wide.
The soil will be removed using a truck that can hold a maximum of 40,000 pounds. The soil weighs 90 pounds per
cubic foot. What is the least number of truckloads needed to remove all of the soil?
Answers
Answer: 5
Step-by-step explanation: volume of hole = 100x50x4=20,000 ft
soil weighs : 20000x90=180,000 pounds
180,000 divided by 40,000 = 4.5 ≈ 5
So the least number of truckloads is 5
can someone help please !!!
Answers
Answer:
1. C
2. B
3. A
Step-by-step explanation:
Yellow ink indicates all areas where x is positive.
Orange ink indicates all areas where x is negative.
Green indicates all areas where y is positive.
Blue indicates all areas where y is negative.
2. Write the ratio as a fraction in simplest form, 20 mi to 32 mi. (picture)
Answers
Answer:
5/8
Step-by-step explanation:
20:32 .... 10:16..... 5:8.
A mixture of 40 liters of paint is 25% red tint, 30% yellow tint and 45% water. 8 líters of yellow tint are added to the original mixture.
Answers
Answer:
The amount of yellow tint would be 33.84%
Step-by-step explanation:
1. Sharon is a good student who enjoys statistics. She sets a goal for herself to do well enough compared to her peers so that her standardized score on her Statistics final is equal to her percentile rank (written as a decimal) among her classmates. What goal did she set for herself
Answers
The available options are:
(A)0.25
(B)0.78
(C)1.09
(D)2.25
(E)2.41
Answer:
(B)0.78
Step-by-step explanation:
Given the fact that percentile rank is usually between 0 to 100. Hence, considering the available options, the 100th percentile would be converted to 1.0 when representing the percentile into decimal places.
Since it is logically and mathematically impossible to go beyond the 100th percentile, hence, the option C, D, and E are wrong.
Also, since Sharon hoped to get a score well enough compared to her peers, then the correct answer is 0.78 which can be translated to 78 percentile. Because 0.78 is a better score than 0.25 or 78 percentile is better than 25 percentile because 78 percentile means she scored better than 78 percent of all the test takers.
Hence, the right answer is in this case is 0.78
if matrix A is of the size 2×3 and we are able to add matrix B to A. what must be the size of B be?
Answers
Answer:
6 be because 2×3 =6 so B it will be the given answer
is 11/8 a rational or irrational number ??
Answers
Answer:
Rational number
Step-by-step explanation:
Rational numbers can be written in a way where the entire number is displayed.
Irrational numbers will look a little "weird." They will have a square root or greek letter (such as π) because you cannot display the entire number. It would take forever to write out the number π (3.14159...). So we just use a symbol. That makes it an irrational number.
11/8 is the rational number not a irrational number.
The given number is 11/8.
What are irrational numbers?Irrational numbers are the set of real numbers that cannot be expressed in the form of a fraction, p/q where p and q are integers. The denominator q is not equal to zero (q ≠ 0). Also, the decimal expansion of an irrational number is neither terminating nor repeating.
The decimal expansion of a given number is
11/8 =1.375
The decimal expansion is terminating decimal number
Therefore, 11/8 is the rational number not a irrational number.
To learn more about the irrational numbers visit:
https://brainly.com/question/4031928.
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(4+2)+8=14 choose an equivalent addition sentence that shows the associative of addition
Answers
Answer:
14 = 14
Step-by-step explanation:
(4 + 2) + 8 = 14
6 + 8 = 14
14 = 14
convert 1 to 1000 in roman numbers
Answers
Question
If the average (arithmetic mean) of x, y, and 24 is 10, what is the average of x and y?
02.
03
06
o It cannot be determined from the information given
Answers
Answer:
I don't know
Step-by-step explanation:
the answer is 0.2
The average of x and y is 03
How to determine the average?The average of the three numbers is given as:
Average = 10
This means that:
(x + y + 24)/3 = 10
Multiply both sides by 3
x + y + 24 = 30
Subtract 24 from both sides
x + y = 6
Divide by 2
(x + y) = 3
Hence, the average of x and y is 03
Read more about average and mean at:
https://brainly.com/question/20118982
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