Answer:
Step-by-step explanation:
Given
When video is posted 5 people watched it
Next day number of viewers doubled
Suppose this trend continues i.e. No of viewers doubled each day
So on 2 nd day no of viewers is [tex]2\times 5[/tex]
On 3rd day , viewers [tex]2^2\times 5[/tex]
on n th day , viewers is [tex]2^{n-1}\times 5[/tex]
So no of viewers in 1 year i.e. on 365 day
[tex]=2^{365-1}\times 5[/tex]
[tex]=2^{364}\times 5[/tex]
(ii)Day on which 640 people seen the video
[tex]2^{n-1}\times 5=640[/tex]
[tex]2^{n-1}=128[/tex]
[tex]2^{n-1}=2^7[/tex]
Therefore
[tex]n-1=7[/tex]
[tex]n=8\ days[/tex]
Frank measured 56 cm. The actual length was 61 cm. Which expression shows his percent error?
Answer: 8.54701% difference
Step-by-step explanation: (61-56)/[(61+56)/2] x 100= 8.55%
what place value is the 8 in in the number 475.082
The place value is the 8 in in the number given is 8 hundredths.
What is place value?The place value is the position of each digit in a number. The place value of digits is determined as ones, tens, hundreds, thousands,ten-thousands and so on, based on their position in the number.
The place value =
Ones, tens, hundreds, thousands, ten-thounsands.
Place value names to the right of the decimal work in a similar way, only given that they are given fractional names because, well, they're fractions of one:
tenths: 0.1 = 1/10
hundreths: 0.01 = 1/100
thousandths: 0.001 = 1/1000
ten-thousandths: 0.0001 = 1/10000
and so on.
As the 8 is in the second unit value over, that means it's in the hundredths place. That means that its value is eight hundredths.
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A new car is purchased for 24000 dollars. The value of the car depreciates at 15% per year. To the nearest tenth of a year, how long will it be until the value of the car is 10000 dollars
The value of the car will be $10000 after 2.5 years
The cost price of the car = $24000
Rate of depreciation, r = 15%
r = 15/100
r = 0.15
The final value of the car after depreciation, A = $10000
To get the time for depreciation, use the formula below and solve for t
[tex]A=P(1-r)^t[/tex]
Substitute P = 24000, A = 10000, and r = 0.15 into the equation above
[tex]10000=15000(1-0.15)^t\\\\\frac{10000}{15000} = 0.85^t\\\\0.85^t=0.67\\\\t (ln0.85)=ln0.67\\\\-0.163t=-0.4\\\\t=\frac{-0.4}{-0.163} \\\\t=2.5[/tex]
The value of the car will be $10000 after 2.5 years
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2.0 mol of AlF3 mol to grams
We assume you are converting between moles AlF3 and gram. You can view more details on each measurement unit: molecular weight of AlF3 or grams This compound is also known as Aluminium Fluoride. The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles AlF3, or 83.9767476 grams.
what is m if 9/7m= 1/7
Answer: [tex]m=\frac{1}{9}[/tex]
Step-by-step explanation:
[tex]\frac{9}{7}m=\frac{1}{7}[/tex]
Multiply by the reciprocal to isolate m.
[tex](\frac{7}{9} )\frac{9}{7}m=\frac{1}{7}(\frac{7}{9} )[/tex]
[tex]m=\frac{1}{9}[/tex]
7. What is the value of the expression 3(2 - 7)
Answer:
-15
Step-by-step explanation:
3(2 - 7)
PEMDAS says parentheses first
Subtract
3 (-5)
Multiply
-15
-3(x + 4) = (-x - 1)
Answer:
x=-5.5
Step-by-step explanation:
-3(x+4)=(-x-1)
1. Distribute
-3x+(-12)=-x-1
2. Simplify
-3x-12=-x-1
-2x-12=-1
-2x=11
x=-11/2
x=-5.5
Answer:
-11/2 or 5.5
Step-by-step explanation:
Need help Soon as possible
Answer:
D; D
Step-by-step explanation:
The common difference of the first sequence is 10, so the coefficient is 10. The first term minus the common difference is -8, so that is the constant
The common difference of the second sequence is 3, so the coefficient is 3. The first term minus the common difference is -9, so that is the constant.
A washer and a dryer cost 1021 combined. The washer costs 71 more than the dryer. What is the cost of the dryer?
Answer:
475
Step-by-step explanation:
1021-71
950/2
Please help!! A box contains 7 yellow, 5 blue, and 4 red balls. Three balls are drawn at random. What is the probability that exactly two balls are yellow?
Answer:
7/16 or (if you are looking for a word) likely
Step-by-step explanation:
Find the percent of all values in a normal distribution for which z ≤ 1.00, to the nearest tenth of percent.
Answer:
84.1% of all values in a normal distribution have z ≤ 1.00.
Step-by-step explanation:
Problems of normally distributed samples can be solved using the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
In this question:
The percent of all values in a normal distribution for which z ≤ 1.00.
This is the pvalue of Z = 1.
Z = 1 has a pvalue of 0.8413.
Converting to percentage, to the nearest tenth.
84.1% of all values in a normal distribution have z ≤ 1.00.
When we plot all the points that satisfy an equation or inequality we __ it.
Anoop decides to measure the rate at which the temperature changes as the altitude increases.
What would be an appropriate unit for Anoop's purpose?
Answer:
Metre
Step-by-step explanation:
Answer:
Degree sign C/ km
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If a = 7 and b = 2, find the value of
a) a- b
b) 2a + 3b
c) 2ab
d) (a - b)?
You randomly survey men and women about whether they plan to watch a football game on Sunday afternoon. A total of 40 men plan to watch a football game and a total of 17 women do not plan to watch a football game. A total of 45 women are surveyed. A total of 33 people do not plan to watch a football game. How many people did you survey?
Answer: 101
Step-by-step explanation:
45 women total
17 women will not watch the game
So 33 people did not want to watch the game and 17 are women
33-17 = 16 men who won’t watch the game
So 40 men who will and 16 men who won’t equals 56 men and 45 women
56+45= 101
What is 2/3 ÷ 4/5 = ?
Answer:
5/6
Step-by-step explanation:
2/3 ÷ 4/5 = ⇒ changing division to multiplication by reciprocal of the second fraction2/3 × 5/4 = ⇒ simplify and multiply numerators and denominators5/6 ⇒ here is the answer2. Sumara Kato's savings account has a balance of $1663. After 19 years, how much interest
will she have eamed if her rate is 5.5% compounded annually?
Answer:
Step-by-step explanation:
interest = Amount - principal
A = P(1+r)^t
r = 5.5% = 5.5/100 = 0.055
A = 1663(1+ 0.055)^19
A = 1663 (1.055)^19
A = 4,599.270812203411
Let’s say A = 4,599
interest = 4,599-1663 = 2,936
Please help asap! Will give brainliest! Please answer correctly! No guessing. Check all that apply.
Answer:F
Step-by-step explanation:
Answer:
i honestly think that its A, C, D, F.
Step-by-step explanation:
for the A i think that you need to write down the facts so you dont forget and you remember when someone asks you a question.
For C you should gather your resources so you can do the experiment again if your not satisfied with the first result.
For D you should draw a diagram so you can keep track of your information that you used to get the final solution.
For F, you should always make sure that you didn't mess up and that you can redo it to double check.
-189=4x-3(-4x+15) help me i need help badly
Answer:
Step-by-step explanation:
−189=4x−3(−4x+15)
−189=16x−45
16x−45=−189
16x−45+45=−189+45
16x=−144
16x /16
= −144 /16
x=−9
Good luck honey !!
Answer:
x=-9
Step-by-step explanation:
-3×-4= 12x -3×15=-45
4x+12x-45=-189
4x+12x=16x
16x-45=-189
16x=-144
x=-9
Which property is this 6y-y + 2y + 10 - 4+2
you flip a coin 20 times. you land on heads 13 times. what is the percent error?
Answer:
65%
Step-by-step explanation:
You have to do 13 divided by 20 and get 0.65 and then multiply by 100
and get 65
What is the value of x?
Answer: x = 9, y = 5
Step-by-step explanation:
If all of the sides are equal, it is an equilateral triangle. Equilateral triangles are also equiangular. The angles of a triangle add up to 180 degrees, so each angle must equal 60 degrees.
set the equation equal to 60 to solve for x
7x - 3 = 60
add three to both sides
7x = 63
divide both sides by 7
x = 9
find y by setting the equation equal to 60
11y + 5 = 60
subtract 5 from each side
11y = 55
divide both sides by 11
y = 5
Find the area of a circle with a radius of 5 feet. Please help
Answer:
see below
Step-by-step explanation:
The area of a circle is given by
A = pi r^2
A = pi (5)^2
A = 25 pi
Using 3.14 for pi
A = 78.5 ft^2
Using the pi button
A =78.53981634 ft^2
If X - 14 = 465, what is the value of X?
Answer: The value of x is 479
Step-by-step explanation:
x -14 = 465
+14 +14
x= 479
Answer:
x=479
Step-by-step explanation:
x-14=465 Move constant to the right-hand side and change its sign
x=465+14 add the numbers
x=479
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If P(A)=35, P(B)=13, and P(A∩B)=18, are A and B independent?
Select the option that provides both the correct answer and the correct reason.
No, because 35(13)≠18.
Yes, because 35(13)=18.
Yes, because 35+13=18.
No, because 35÷13≠18.
No, because 35+13≠18.
Answer:
P(A) x P(B) = 35 x 13 = 455
P(A∩B) = 18
=> P(A) x P(B) ≠ P(A∩B).
=> A and B are not independent.
=> Option A (No, because 35(13)≠18) is correct.
Hope this helps!
:)
A and B are not independent because 35(13)≠18), the correct option is A
What is the independent probability?Independent events and probability can be defined as those occurrences that are not dependent on any specific event.
P(A)=35, P(B)=13, and P(A∩B)=18, are A and B independent.
It is to note here that A and B are the odd number outcome and multiples of 3 respectively. So, P (A ∩ B) = 18
P(D│E) = P (D ∩ E)/ P(B)
P(D│E) = 18/13
Here P(D) = P(D│E) = 18/13, which entails that the occurrence of event E will not be affected by the probability of event D’s occurrence.
Taking A and B as independent events, then P(D│E) = P(D).
Here, A and B are not independent because 35(13)≠18), the correct option is A.
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Emter 2/2/8 as an inpropper fraction
Answer:
The answer is 9/4
Step-by-step explanation:
What is the solution to the system of equations?
y = *x+3
X = -2
• (-2. -
15
• (-2, 4)
• 6-2.1
Answer:
(-2,1)
Step-by-step explanation:
The two equations cross at (-2,1). Hope this helps.
A shelf at a grocery store contains 500 packages of corn and flour tortillas. If 22% of the packages are flour tortillas how many packages are corn tortillas
Beth participated in a free throw contest. She took 10 shots, and she made 6 of them.
Beth wants to know how to describe the number of baskets she made.
Answer:
Beth made 60% of her shots.
Step-by-step explanation:
Given:
Total shots take = 10
Total goal = 6
Find:
Best describer this number.
Computation:
Converting goal numbers into percentage:
⇒ Total goal percentage = [Total goal/Total shots take]100
⇒ Total goal percentage = [6/10]100
⇒ Total goal percentage = 60%
Beth made 60% of her shots.
Answer:
6:10 is the ratio
Step-by-step explanation:
as a fraction it would be 6/10
as a decimal it would be 0.60 or 0.6
and she made 60% of her shots
What is the first step to solving the quadratic equation x2=9over 16
Answer:
divide both sides by 2
Step-by-step explanation:
divide both sides by 2 then simplify and get x = 9 over 32
Answer:
Transposing square to rhs,it becomes root
Step-by-step explanation:
[tex]x^{2} =9/16[/tex]
[tex]x=[/tex][tex]\sqrt{9}/\sqrt{16\\[/tex] (transposing square to rhs,it becomes root)
[tex]x= 3/4[/tex]
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