How many centimeters equal 128.9 meters?.
*Enter you answer in the box*
|___| cm
Answers
Hope this helped :)
Related Questions
HELP ME PLEASE ILL GIVE BRAINLIEST!!!!
Answers
⇒ n + n - 0.18n
collect terms and add them
⇒ 1.82n
B is the correct choice
2)
\(\sf \rightarrow -\dfrac{1}{3} (6x+15)-3 \ \ = -2x -5-3 \ \ = -2x - 8\)
D is the correct choice.
3)
\(\sf \rightarrow \dfrac{8+4*3}{5} \ = \ \dfrac{8+12}{5} \ = \ \dfrac{20}{5} \ = \ 4\)
4) \(\sf Female = Total \ People - Male \ population \ = \ 30 - 6 \ = \ 24\)There are 24 female over the age of 100.
5)(3 + 5) + 2 = 2(? + 2)
8 + 2 = 2? + 4
2? = 10 - 4
2? = 6
? = 3
∴ The missing number is 3
Answer:
B) 1.82nD) -2x - 84243Step-by-step explanation:
Q1
Combine like terms by taking n as a common factor :
n + n - 0.18n
n (1 + 1 - 0.18)
n (2 - 0.18)
B) 1.82n
Q2
Distribute terms in the parentheses :
-1/3 (6x + 15) - 3
(-1/3)(6x) + (-1/3)(15) - 3
-2x - 5 - 3
Combine like terms :
D) -2x - 8
Q3
Applying PEMDAS (Parentheses, Exponents, Multiplication, Division, Addition, Subtraction) :
Let's simplify the numerator first.
8 + 4 × 3 / 5
8 + 12 / 5
20/5
4
Q4
Subtract the number of males from the total to get the number of females :
30 - 6
24
Q5
Simplify the LHS and solve for the missing value in the RHS :
(Remember to apply PEMDAS!)
(3 + 5) + 2 = 2( _ + 2 )
8 + 2 = 2( _ + 2 )
10 = 2 ( _ + 2 )
_ + 2 = 5
_ = 3
Use the property of equality to solve this equation 4.5x=18
Answers
Answer:
x = 4
Step-by-step explanation:
Given
4.5x = 18 ( divide both sides by 4.5 )
x = 4
Answer:
x=4
Step-by-step explanation:
to isolate x, we need to divide both sides by 4.5, and 18/4.5 is equal to 4, so x=4.
Which equations are equivalent to Negative one-fourth (x) + three-fourths = 12 Select all that apply.
(StartFraction negative 4 x over 1 EndFraction + three-fourths = 12
Negative 1 (StartFraction x over 4 EndFraction) + three-fourths = 12
StartFraction negative x + 3 over 4 EndFraction = 12
One-fourth (x + 3) = 12
(StartFraction negative x over 4 EndFraction + three-fourths = 12
Answers
Answer:
Step-by-step explanation:
Negative one-fourth (x) + three-fourths = 12
-1/4(x)+3/4=12
-x/4 + 3/4 =12
-x+3/4=12
1. Negative 1 (StartFraction x over 4 EndFraction) + three-fourths = 12
-1(x/4)+3/4=12
-x/4+3/4=12
2. (StartFraction negative x over 4 EndFraction + three-fourths = 12
-x/4+3/4=12
3. StartFraction
negative x + 3 over 4 EndFraction = 12
-x+3/4=12
Answer:
B, C, & E
Step-by-step explanation:
-1(x/4) + 3/4
-x + 3 /4 = 12
(-x/4) +3/4 = 12
Hope this helps ^^
Calculating brilliance in epidemiology Context. What follows is a data table showing the development of brilliance among a small class of PHE 450 students. NOTE: Student #8 came in as an existing case of brilliance and did not develop brilliance as a result of exposure to PHE 450. Student WK 1 WK 2 WK 3 WK 4 WK 5 WK6 WK 7 WK 8 WK 9 WK 10 CASE CASE CASE CASE DROP 1 2 3 4 5 6 7 8 9 10 11 12 CASE CASE CASE DROP CASE DROP ASSIGNMENT Referring to the data above, please answer the following questions What is the point prevalence of brilliance at the end of Week 1? What is the point prevalence of brilliance at the end of Week 2? • What is the point prevalence of brilliance at the end of Week 3? • Using person-weeks as your denominator, what is the incidence of brilliance over the course of the 10-week course?
Answers
The point prevalence of brilliance at the end of Week 1 is 0.08 or 8%.
The point prevalence of brilliance at the end of Week 2 is 0.17 or 17%.
The point prevalence of brilliance at the end of Week 3 is 0.33 or 33%.
Using person-weeks as denominator, the incidence of brilliance over the course of the 10-week course is 0.017 or 1.7%
In epidemiology context, brilliance can be calculated through calculating point prevalence, cumulative incidence, and incidence rate. The provided data table can be used to determine the point prevalence, incidence, and incidence rate of brilliance among PHE 450 students. So, the calculations of point prevalence, cumulative incidence, and incidence rate based on the provided data are as follows:
The point prevalence of brilliance at the end of Week 1 can be calculated by the following formula; Point prevalence = Total number of existing cases at a given time ÷ Total population at that time
Student #8 was the only existing case of brilliance at the beginning of Week 1, so the point prevalence of brilliance at the end of Week 1 is; Point prevalence = 1 ÷ 12 = 0.08 or 8%.
The point prevalence of brilliance at the end of Week 2 can be calculated by the following formula; Point prevalence = Total number of existing cases at a given time ÷ Total population at that time
Student #3 and Student #8 were existing cases of brilliance at the beginning of Week 2, so the point prevalence of brilliance at the end of Week 2 is; Point prevalence = 2 ÷ 12 = 0.17 or 17%.
The point prevalence of brilliance at the end of Week 3 can be calculated by the following formula; Point prevalence = Total number of existing cases at a given time ÷ Total population at that time
Student #3, #4, #6, and #8 were existing cases of brilliance at the beginning of Week 3, so the point prevalence of brilliance at the end of Week 3 is; Point prevalence = 4 ÷ 12 = 0.33 or 33%.
The incidence of brilliance can be calculated by the following formula; Incidence = Total number of new cases ÷ Total person-weeks of observation
Student #5 and Student #7 developed brilliance during the 10-week course, so the incidence of brilliance over the course of the 10-week course is; Incidence = 2 ÷ 120 = 0.017 or 1.7%.
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8-1/2 x 6+24 divided by 6
Answers
Answer:
29/6 or 5 4/6 as a mixed fraction
Step-by-step explanation:
Simplify the following:
(8 - 1/2×6 + 24)/6
Hint: | Reduce (-6)/2 to lowest terms. Start by finding the GCD of -6 and 2.
The gcd of -6 and 2 is 2, so (-6)/2 = (2 (-3))/(2×1) = 2/2×-3 = -3:
(8 + -3 + 24)/6
Hint: | Evaluate 8 + 24 using long addition.
| 1 |
| 2 | 4
+ | | 8
| 3 | 2:
(32 - 3)/6
Hint: | Subtract 3 from 32.
| 2 | 12
| 3 | 2
- | | 3
| 2 | 9:
Answer: 29/6
Instructions
Alex is trying to win a jumping jack competition. He does
100 jumping jacks in 2 minutes.
Write a ratio in three ways comparing jumping jacks to minutes.
Remember to simplify!
Answers
The ratio in three ways comparing jumping jacks to minutes is: Jumping jacks : Minutes = 100 : 2, 50 : 1 and 50/1.
The given situation is:
Alex is trying to win a jumping jack competition.
He does 100 jumping jacks in 2 minutes.
We need to write a ratio in three ways comparing jumping jacks to minutes and simplify it.
Therefore, the required ratio can be obtained as below:
1. Jumping jacks :
Minutes = 100 : 2 (by using the given situation)
2. Simplifying the ratio 100:
2 by both terms by 2, we get 50: 1 (dividing by HCF which is 2) 3. Jumping jacks : Minutes = 50 : 1 (by simplifying the ratio)
Hence, the ratio in three ways comparing jumping jacks to minutes is: Jumping jacks :
Minutes = 100 : 2, 50 : 1 and 50/1.
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Johnson Middle School held a track and field event during the school year. The chess club
sold various drink and snack items for the participants and the audience. Altogether, they sold
486 items that totaled $2,673.
Part A: If the chess club sold each item for the same price, calculate the price of each item.
Show your work. r
Answers
Answer:
$5.50
Step-by-step explanation:
If we are finding the price of each item and they are the same price each, we can just do division! 2,673/486=5.5, so $5.50 is the price for each item.
hope this helped!! <3
For the rectangle shown which equation can be used to find the value of c
A=5
B=x
C=12
Answers
Answer: B = 1.9
Step-by-step explanation:
A=5
C=12
B=x
Pythagorean Theorem: 5^2 + x^2 = 12^2
25+x^2=144
x^2=119
\(\sqrt{19}\)≈10.9
A group of students is trying to determine the number of cars that move along a certain section of roadway. The dot plot below shows the speeds of 20 vehicles. Complete the table with the correct values from the dot plot.
Answers
Answer:# of cars: 1 | 0 | 0 | 0 | 2 | 4 | 5 | 3 | 0 | 2 | 2 | 1 |
Note: the answers are from left to right in order
Step-by-step explanation:
So this isn't as hard as it seems. You just count the X's and if there is like for example 1 x on 30 then the answer for 30 is 1 since there is only 1 X.
Assume that y varies directly with
x, then solve.
If y=8 when x=4, find y when x=5.
y = [ ? ]
Answers
Answer:
If x = 5 then, y = 10
Solve using elimination.
–3x + 10y = –7
–3x + 4y = –19
Answers
Answer:
Approximately 6.78
Step-by-step explanation:
–3x + 10y = –7 - - - - - - > (1)
–3x + 4y = –19 - - - - - - > (2)
(1) - (2) Because if same sign then you have subtract to cancel out the equal numbers therefore - 3x and - 3x is cancelled out
6y = +2
y = 2 ÷ 6
y = 1/3
Then to find the value of x substitute value of y
-3x + (4 × 1/3) = - 19
-3x + 4/3 = - 19
- 3x = - 19 - 4/3
- 3x = - 61/3
x = ( - 61/3 ÷ -3)
x = 6.78
spin+a+spinner+with+three+equal+sections+colored+red,+white,+and+blue.+what+is+p(green)?+0%+100%+33%+66%
Answers
Answer:
Step-by-step explanation:The spinner has three equal sections, and none of them are green. Therefore, the probability of landing on green is 0%.
The probability of an event happening is the number of favorable outcomes divided by the total number of possible outcomes.
In this case, there are three possible outcomes (red, white, and blue), and none of them are green.
So, the number of favorable outcomes is 0. The total number of possible outcomes is 3.
Therefore, the probability of landing on green is 0/3 = 0%.
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math is hard
Mr. Anderson took Mrs. Anderson out
for a nice steak dinner. The food bill
came out to $89.25 before tax and tip.
If tax is 6% and tip is 15%, what is
the total cost?
Answers
If tax is 6% and tip is 15%, the total cost of the dinner, including tax and tip, is $107.99.
To find the total cost of the dinner, we need to add the tax and tip to the pre-tax amount.
The tax on the food bill can be calculated by multiplying the pre-tax amount by the tax rate of 6%, which is:
Tax = 0.06 x $89.25 = $5.355
Next, we need to calculate the tip on the pre-tax amount. The tip rate is 15%, which is:
Tip = 0.15 x $89.25 = $13.39
Now, we can calculate the total cost by adding the pre-tax amount, tax, and tip, which is:
Total cost = $89.25 + $5.355 + $13.39 = $107.995
Rounding this amount to the nearest cent gives us:
Total cost = $107.99
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Find the length of the third side. If necessary, round to the nearest tenth.
9
13
Answers
Answer:
15.8
I think there is a part of the question missing (the triangle is a right triangle)
hope this helps
+let me know if you need an explanation
In a certain section of Southern California, the distribution of monthly rent for a one-bedroom apartment has a mean of $2,200 and a standard deviation of $250. The distribution of the monthly rent does not follow the normal distribution. In fact, it is positively skewed. What is the probability of selecting a sample of 50 one-bedroom apartments and finding the mean to be at least $1,950 per month
Answers
To find the probability of selecting a sample of 50 one-bedroom apartments and finding the mean to be at least $1,950 per month, we can use the Central Limit Theorem.
This theorem states that for a large enough sample size, the distribution of sample means will be approximately normal, regardless of the shape of the original distribution.
Given that the population mean is $2,200 and the standard deviation is $250, we can calculate the standard error of the mean using the formula: standard deviation / square root of sample size.
Standard error = $250 / sqrt(50) ≈ $35.36
To find the probability of obtaining a sample mean of at least $1,950, we need to standardize this value using the formula: (sample mean - population mean) / standard error.
Z-score = (1950 - 2200) / 35.36 ≈ -6.57
Since the distribution is positively skewed, the probability of obtaining a Z-score of -6.57 or lower is extremely low. In fact, it is close to 0. Therefore, the probability of selecting a sample of 50 one-bedroom apartments and finding the mean to be at least $1,950 per month is very close to 0.
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first to solve right get brainlest
Answers
If x=(y+2)^2 and y= -7 then what is x
Answers
Answer:
X=25
Step-by-step explanation:
y+2=-7+2=5
\(5^{2} =25\)
13. One kilogram is equal to 1,000 grams.
How many kilograms equal 2,570
grams?
A 257 kilograms
8 25.7 kilograms
257 kilograms
0.257 kilogram
Answer quick PLZZ no website
Answers
Answer:
I'm pretty sure it's 0.257!
Step-by-step explanation:
Sorry if I got it wrong I'm trying my best hope you have a great day!!
Answer:
2.57 is the answer because 1kg=1000g so 2570\1000 ie 2.57 which is 0.257
what is the critical f-value when the sample size for the numerator is sixteen and the sample size for the denominator is ten? use a two-tailed test and the 0.02 significance level. (round your answer to 2 decimal places.) g
Answers
Therefore, the critical F-value for the given scenario is 3.96.
To find the critical F-value, we need to use the F-distribution table or a statistical software.
Given:
Sample size for the numerator (numerator degrees of freedom) = 16
Sample size for the denominator (denominator degrees of freedom) = 10
Two-tailed test
Significance level = 0.02
Using these values, we can consult the F-distribution table or a statistical software to find the critical F-value.
The critical F-value is the value at which the cumulative probability in the upper tail of the F-distribution equals 0.01 (half of the 0.02 significance level) since we have a two-tailed test.
Using the degrees of freedom values (16 and 10) and the significance level (0.01), the critical F-value is approximately 3.96 (rounded to 2 decimal places).
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hhhhhhhhhelp1!111!1!!!
Answers
Answer:
309.91
Step-by-step explanation:
-0.1 + 12.4 / (-0.2)² + 0.01
BIDMAS
(-0.2)² = 0.04
12.4 / 0.04 = 310
-0.1 + 310 = 309.9
309.9 + 0.01 = 309.91
You surprised your friends with a trip to a haunted house this weekend. The admission tickets were $8 per friend. You had to pay an additional $5 for parking and you spend $20 on food. You also got your friends a card that was $2 per friend. At the end of the night, you spent $105. How many of your friends did you bring to the haunted house?
Answers
Answer: 8
Step-by-step explanation:
Ok, start going backwards with the addition and substration which makes it:
105 – 25 = 80
Since you had to pay 8 and 2 for each friend so that makes the cost for a friend 10 so:
80 divided by 10 = 8
8 Friends is the answer.
Todd is attempting to predict how much money his furniture company will make based on the amount raw materials the company currently has at its disposal. The average profit from the sale of 1 piece of furniture can be expressed 2x-2 as and the average number of pieces of furniture that can be made using the current supply of raw materials can be expressed as 2x-2. What polynomial function can Todd use to calculate the average profit
Answers
Answer:
\(4x^{2} -8x+4\)
Step-by-step explanation:
The average profit expression is for 1 piece of furniture
The amount of furniture is another expression
So we have to multiply both expressions to get the total profit.
(2x-2) (2x-2) = 4x^2 - 4x - 4x + 4
= 4x^2 - 8x + 4
what would (ax - b)(ax + b) be in expanded version?
Answers
Answer: ax - b x ax +b
Step-by-step explanation:
The two parenthesis in the middle stand for multiplication
in PQR if m∠p is 14 less than five times x, m∠q is five less than x and m∠r is nine less than twice x find x and the measure of each angle.
x=
m∠p=
m∠q=
m∠r=
Answers
The value of x =26°, m∠p =116°, m∠q=21°, m∠r=43°
What is an angle?
An angle is formed when two lines meets at the same vertex. It is measured by degree. Based on the measurements angles are of three types.
Consider POR as a triangle.
Given that m∠p=5x-14, m∠q=x-5, m∠r=2x-9.
In triangle the sum of the angle is 180°, then
m∠p + m∠q +m∠r =180°
⇒5x-14+x-5+2x-9 = 180°
⇒8x-28=180°
⇒x=26°
then, m∠p=5x-14 = 5(26)-14 = 116°
m∠q=x-5 = 26-5=21°
m∠r=2x-9 = 2(26)-9=43°
Hence, the value of x =26°, m∠p =116°, m∠q=21°, m∠r=43°
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Find the slope of the line that passes through (1,5) and (10, 7).
Simply your answer and write it as a proper fraction, improper fraction, or integer.
Answers
Answer:
-2/9
Step-by-step explanation:
y2-y1/x2-x1. That's the formula for finding gradient. Hope it will be helpful.
1/4(-16x+8) simplified
Answers
Answer:
-4x+2
Step-by-step explanation:
1/4(-16x+8)
-16x+8/4
-8(2x-1)/4
-8(2x-1)/4
-2(2x-1)
-4x+2
The simplified form of 1/4(-16x+8) will be -4x+2.We will use the arrthmetic operation to find the simplified value.
What is an arithmetic operation?It is defined as the operation in which we do the addition of numbers, subtraction, multiplication, and division. It has basic four operators that are +, -, ×, and ÷.
It is given that,
1/4(-16x+8)
The order of operations is a rule that specifies the right procedure to follow when evaluating a mathematical equation. Using the acronym PEMDAS, we can memorize this order: parentheses, exponents, multiplication, and division (left to right), addition and subtraction (from left to right).
=1/4(-16x+8)
= -16x+8/4
=- -8(2x-1)/4
= -8(2x-1)/4
=- -2(2x-1)
= -4x+2
Thus, the simplified form of 1/4(-16x+8) will be -4x+2.We will use the arrthmetic operation to find the simplified value.
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for heights of full-grown men in a country, state whether you would expect a histogram of the data to be bell-shaped, uniform, skewed left, or skewed right.
Answers
Left-Skewed is the answer.
Histograms are a very common method of visualizing data, and that means that understanding how to interpret histograms is a valuable and important skill in virtually any career. There are a number of things to pay particular attention to when reading a histogram.
Bell-Shaped: A histogram with a prominent ‘mound’ in the center and similar tapering to the left and right. One indication of this shape is that the data is unimodal – meaning that the data has a single mode, identified by the ‘peak’ of the curve.
Uniform: A uniform-shaped histogram indicates data that is very consistent; the frequency of each class is very similar to that of the others.
Right-Skewed: A right-skewed histogram has a peak that is left of the center and a more gradual tapering to the right side of the graph.
Left-Skewed: A left-skewed histogram has a peak to the right of the center, more gradually tapering to the left side. It is unimodal, with the mode closer to the right and greater than either mean or median.
Undefined Bimodal: This shape is not specifically defined, but we can note regardless that it is bi-modal, having two separate classes or intervals equally representing the maximum frequency of the distribution.
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If c is a nonzero constant such that x^2+cx+9c is equal to the square of a binomial, then what is c?
Answers
Answer:
c = 6.
Step-by-step explanation:
x^2+cx+9 = (x + b)^2 where b is a constant
x^2 + cx + 9 = x^1 + 2bx + b^2
so 2b = c
and b^2 = 9
So b = 3
and c = 2*b = 6
To solve this problem, we will use the fact that the square of a binomial (a+b)^2 is equal to a^2 + 2ab + b^2.
Let's start by assuming that x^2 + cx + 9c is the square of a binomial (a+b)^2. Expanding (a+b)^2 using the formula above, we get:
(a+b)^2 = a^2 + 2ab + b^2
If we compare this to x^2 + cx + 9c, we see that:
a^2 = x^2 (1)
2ab = cx (2)
b^2 = 9c (3)
From (1), we get a = ±√x^2 = ±x.
Substituting a = ±x into (2), we get:
2(±x)b = cx
Simplifying this equation, we get:
b = ±(c/2)
Substituting a = ±x and b = ±(c/2) into (3), we get:
x^2 + (c/2)^2 = 9c
Multiplying both sides by 4, we get:
4x^2 + c^2 = 36c
Rearranging this equation, we get:
4x^2 - 36c + c^2 = 0
This is a quadratic equation in c. Using the quadratic formula, we get:
c = (36 ± √(36^2 - 4(4)(c^2))) / (2(4))
Simplifying this equation, we get:
c = (9 ± √(81 - c^2)) / 2
Since c is nonzero, we can ignore the solution c = 0. Therefore, we have:
c = (9 + √(81 - c^2)) / 2 or c = (9 - √(81 - c^2)) / 2
We can check that both solutions satisfy the original condition that x^2 + cx + 9c is the square of a binomial.
However, we need to ensure that the square root in each solution is real, which means that 81 - c^2 ≥ 0.
For the first solution, we have:
81 - c^2 ≥ 0
c^2 ≤ 81
|c| ≤ 9
Therefore, the first solution is valid for c such that -9 ≤ c ≤ 9.
For the second solution, we have:
81 - c^2 ≥ 0
c^2 ≤ 81
|c| ≥ 9
However, we already know that c is nonzero, so |c| > 0. Therefore, the second solution is not valid for any value of c.
Therefore, the only valid solution is:
c = (9 + √(81 - c^2)) / 2, for -9 ≤ c ≤ 9.
I hope this helps! Let me know if you have any questions.
If x^2 + cx + 9c is equal to the square of a binomial, then it can be written in the form (x + A)^2, where A is a constant. Expanding the square of the binomial, we get:
(x + A)^2 = x^2 + 2Ax + A^2
Comparing this with the given expression, x^2 + cx + 9c, we can deduce the following:
2A = c and A^2 = 9c
We are asked to find the value of c. Using the first equation (2A = c), we can substitute c in the second equation:
A^2 = 9(2A)
A^2 = 18A
Since A is nonzero, we can divide both sides by A:
A = 18
Now, using the first equation, we can find the value of c:
c = 2A
c = 2(18)
c = 36
Therefore, the value of c is 36.
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4/3=8/x-1
Solve the equations
Answers
Answer:
= 24/7
Step-by-step explanation:
1. Find common denominator
2. Combine fractions with common denominator
3. Re-order terms so constants are on the left
what should be the price of each toaster if the company wants to make a profit of 42$ per toaster?
Answers
Answer:
$42?
Step-by-step explanation:
Is your answer I hope this helps