Answer:
The candle must burn at 2cm per hour in order to be 6cm tall after 4 hours. I know this because the candle has to burn 8cm in 4 hours and that amounts to 2cm per hour.
Step-by-step explanation:
Lets solve!
We have to find out how much of the candle needs to be burned!
14cm - 6cm = 8cm
The candle must burn 8cm in 4 hours!
Lets find out how much the candle burns in 1 hour.
\(\frac{8cm}{4hours}\)= 2cm per hour
The candle must burn at 2cm per hour in order to be 6cm tall after 4 hours. I know this because the candle has to burn 8cm in 4 hours and that amounts to 2cm per hour.
Woohoo, We did it! Would you like to mark my answer as brainliest? I would love that!
Help me please no links no
Answer:
x/4
Step-by-step explanation:
x + 4/4 = y + 3/3
do cross multiplication
4(y +3)=3(x +4)
4y +12=3x +12
4y=3x + 12 -12
4y=3x
y/3 = x/4
given a right triangle with a leg of 8 m and a hypotenuse of 12m and determine the length of the other leg in a simplest radical form
PLEASE HELP!!! I NEED TO HAVE THIS DONE SOON!
Answer:
A = 54 is the correct answer!
Step-by-step explanation:
I did this test too! Hope this helped!
If x = 7, what does y equal in the following equation? *
2x + 4y = -6
1) y = -2
2) y=-3
3) y=-4
4) y=-5
Destiny performs a hypothesis test on a population with µ = 115 and Sigma = 30. Her sample size is 25 with a mean of 120.4. Which of the following correctly depicts the z-statistic for this data?
0.04
0.90
3.53
3.93
The correct answer which refers to the z-statistic for this data is b)0.90.
What is a Hypothesis Test?The hypothesis Test refers to the statistical approach where the test is applied to an assumption regarding a population parameter.
It is given that µ = 115 and Sigma = 30.
sample size is 25 with a mean of 120.4
The formula for z-statistic is
z = (x – u) / (σ / sqrt n)
Therefore, we input the values and we get
z = (120.4 – 115) / (30 / sqrt 25)
We calculate further and we get
z = 0.90
Therefore, the correct answer is option b.
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Answer: B. 0.90
Step-by-step explanation:
What does a positive exponent show?
repeated multiplication by the base
Need help please can you answer it how the question is telling you
Answer:
243 m³
Step-by-step explanation:
The volume of a rectangular pyramid is given by:
\(V = \frac13lwh\)
Where
l = length = 9m
w = width = 9m
h = height = 9m
so the volume is 1/3*9*9*9 = 243 m³
Answer:
243
Step-by-step explanation:
The formula for the volume of a square-based pyramid is
\(V=\frac{lwh}{3}\)
\(l\) = length
\(w\) = width
\(h\) = height
\(V=\frac{9 \times 9 \times 9}{3}\)
\(V=\frac{729}{3}\)
\(V=243\)
The area is 243 cubic meters.
If A and B are any two events defined on a sample space S of an experiment, then p(A ∩ B) = p(A).p(B)
True or False
The statement is True only for independent events and False otherwise. The statement "p (A ∩ B) = p(A). p(B)" is not always true for any two events A and B defined on a sample space S of an experiment.
This equation only holds true if A and B are independent events, meaning that the occurrence of one event does not affect the probability of the other event happening. In other words, p(A|B) = p(A) and p(B|A) = p(B).
If A and B are dependent events, meaning that the occurrence of one event affects the probability of the other event happening, then the equation does not hold true. In this case, the probability of A and B occurring together (p(A ∩ B)) would be less than the product of the probabilities of A and B occurring separately (p(A).p(B)).
Therefore, the statement is not always true and depends on whether A and B are independent or dependent events.
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PLEASE HELP!!QUICK! in 3 years ,a gyms membership went up from 6,400 to 8,400.which expression shows how to find the percent of increase?
A.2,000 divide by 8,400
B.2,000 divide by 6,400
C.6,400 divide by 2,000
Pls help im timedTrey converted 12,500,000 into scientific notation as 12.5 * 10 to the power of 6 his he correct
Answer:
12,500,000 (twelve million five hundred thousand) is an even eight-digits composite number following 12499999 and preceding 12500001. In scientific notation, it is written as 1.25 × 107.
Step-by-step explanation:
given no constraints, how many possible sequences are there if five jobs are in the queue for an operation?
There are 3,125 possible sequences if five jobs are in the queue for an operation, and there are no constraints on the order or repetition of jobs.
If there are no constraints on the order of the jobs in the queue, and each job can appear more than once in the sequence, we can calculate the number of possible sequences using the concept of permutations with repetition.
In this case, we have five jobs to consider. Let's label them as Job 1, Job 2, Job 3, Job 4, and Job 5. For each position in the sequence, there are five possible jobs that can be assigned to that position. Since there are five positions in total, we can multiply these possibilities together to get the total number of sequences.
To illustrate this, let's break down the calculation step by step:
For the first position, there are five possible jobs: Job 1, Job 2, Job 3, Job 4, and Job 5.
For the second position, there are also five possible jobs: Job 1, Job 2, Job 3, Job 4, and Job 5.
Similarly, for the third, fourth, and fifth positions, there are five possible jobs each.
Since each position has five possible choices, we can multiply these choices together:
5 * 5 * 5 * 5 * 5 = 5⁵ = 3125
Therefore, there are 3,125 possible sequences if five jobs are in the queue for an operation, and there are no constraints on the order or repetition of jobs.
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A cereal box says that now it contains 33% more originally it came with 18.5 ounces of cereal. How much cereal does the box come with now?
Please show work for brainliest
Let original amount be x
\(\\ \tt\Rrightarrow 0.33x=18.5\)
\(\\ \tt\Rrightarrow x=18.5/0.33\)
\(\\ \tt\Rrightarrow x=56.06oz\)
\( \huge \sf \dag Answer : \)
suppose, x = lots of cereal now.
\(\longmapsto \rm 33\%y = 18.5ounces\)
\(\longmapsto \rm y = \frac{18.5ounces}{33\%}\)
\(\longmapsto \rm y = \boxed{\bold{56.06ounces}}\)
Explain the prices of dividing two fractions
Answer:
When dividing two fractions, the process is very easy. You simply multiply the numerator fraction by the reciprocal of the denominator fraction. In other words:
\(\frac{a}{b} \div \frac{c}{d} \\= \frac{a}{b} \times \frac{d}{c} \\= \frac{a \times d}{b \times c}\)
People spend an average of 7 hours per day on their home computers with a standard deviation of 1hour. What proportion spends at least 5 hours per day on their home computers? (enter the answeras a percent rounded to the nearest hundredth as needed)
Solution;
From the given question, we have
\(\begin{gathered} \mu=7 \\ \sigma=1 \end{gathered}\)To evaluate the proportion of people that spend at least 5 hours per day on their home computers,
Step 1: Evaluate the z score value.
The z score value is expressed as
\(\begin{gathered} z=\frac{x-\mu}{\sigma} \\ where \\ x\implies sample\text{ value} \\ \mu\implies mean\text{ value} \\ \sigma\implies standard\text{ deviation} \end{gathered}\)In this case,
\(x=5\)thus, we have the z score value to be evaluated as
\(z=\frac{5-7}{1}=-2\)Step 2: Evaluate the probability that people will spend at least 5 hours per day on their home computers,
From the normal distribution table, we have
This implies that
\(P(x\ge5)=P(z\ge-2)=0.977249868052\)Hence, the proportion that spends at least 5 hours per day on their home computers is evaluated to be
\(\begin{gathered} 0.977249868052\times100 \\ =97.7249868052 \\ \approx97.72\%\text{ \lparen nearest hundredth\rparen} \end{gathered}\)
A rectangular living room is 6 meters long and 3 meters wide. What is its area?
TEXT ANSWER
The speed of light is 299,792 kilometers per second. Zipporah tried converting the speed light to miles per hour using the following equivalencies:
1 km = 0.62 mi
1 min = 60 s
1 hr = 60 min
How fast is the speed of light in miles per hour?
The speed of the light in miles per hour is
66913574.4 miles per hour
What is unit conversion?It is the conversion of one unit to another unit with its standard conversion.
Example:
1 minute = 60 seconds
1 km = 1000 m
1 hour = 60 minutes
We have,
1 km = 0.62 mi
1 min = 60 s
1 hr = 60 min
Speed of light = 299,792 km per second
This can be written as,
1 km = 0.62 miles
299792 km = 299792 x 0.62 miles
299792 km = 185871.04 miles
1 hour = 60 minute
1 hour = 360 seconds
1/360 hour = 1 second
1 second = 1/360 hour
Now,
= 299792 km / 1 second
= 185871.04 miles / 1/360 hour
= 185871..04 x 360 miles per hour
= 66913574.4 miles per hour
Thus,
The speed of the light is 66913574.4 miles per hour.
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equation of the line through (3,5) and parallel to y=2x-2
Answer:
y = 2x - 1
Step-by-step explanation:
y = 2x - 2; (3, 5)
(x₁, y₁)
y - y₁ = m(x - x₁)
y - 5 = 2(x - 3)
y - 5 = 2x - 6
+5 +5
-----------------------
y = 2x - 1
I hope this helps!
when f(n)=-8 what is the value of n?
Answer:
20 the answer is 20 because you plug in 4 for n.
what is the exact values of the following , give your answers as a fraction
A )3^-2
b)4^-3
C)2^-6
The values of the number expression as a fraction are 1/9, 1/64, and 1/64 respectively after applying the properties of the integer exponent.
What is a fraction?Fraction number consists of two parts, one is the top of the fraction number which is called the numerator and the second is the bottom of the fraction number which is called the denominator.
It is given that:
The number expression:
After applying the properties of the integer exponent.
A )3⁻²
= 1/9
b)4⁻³
= 1/64
C)2⁻⁶
= 1/64
Thus, the values of the number expressed as a fraction are 1/9, 1/64, and 1/64 respectively after applying the properties of the integer exponent.
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A plane is traveling at a constant speed of K miles per hour. Which coordinate is
represented on the graph?
A. 1,K
B. K,K
C. K,1
Brainly
Answer:
Option (A)
Step-by-step explanation:
Plane is travelling at a constant speed = K miles per hour
K = \(\frac{\text{Distance}}{\text{Time}}\)
Distance = k(Time)
For Time of traveling = 1 hour
Distance traveled = k × 1
= k miles
Therefore, k miles will be traveled in one 1 hour and ordered pairs of the given point on the line will be (1, k)
Option (A) will be the correct option.
Simplify : (2x3 – 3x2 – 8) – ( – 5x3 –2x2 + 7x2 – 3)
Step-by-step explanation:
(2*3-3*2-8)-(-5*3-2*2+7*2-3)
(6-6-8)-(-15-4+14-3)
(12-8)-(-15-18-3)
4-33-3
37-3
34
A restaurant records the number of customers at breakfast, lunch and dinner during one day. The ratio of customers at breakfast to customers at lunch was 7: 4. The ratio of customers at breakfast to customers at dinner was 11: 6. The number of customers at dinner was 10 less than the number of customers at lunch. How many customers were recorded at lunch?
We can see here that the number of customers recorded at lunch is: 220 customers.
What is ratio?A ratio is a comparison of two values that is typically stated as a fraction. The relationship between two things in terms of their size or quantity can be described using ratios.
Let:
B = Breakfast
L = Lunch
D = Dinner
Note: D = L - 10 - (1)
The ratio of breakfast to lunch: B:L = 7:4.
B/L = 7/4
B = (7/4) L
The ratio of breakfast to dinner: B:D = 11:6.
B/D = 11/6
B = (11/6) D
(7/4) L = (11/6) D
Multiplying both sides by 12, we get =
21L = 22D
Substituting this into the previous equation
21L = 22(L - 10).
Simplifying, we have:
L = 220/1 = 220
Therefore, there were 220 customers recorded at lunch.
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Answer:
The answer to your problem is, 210
Step-by-step explanation:
The customers at
breakfast : lunch = 11:6
lunch : breakfast = 6:11
= 42:77
and breakfast dinner = 7:4
= 77:44
∴ Lunch : Breakfast : Dinner = 42:77:44
Let the number of customers at lunch = 42x
Number of customers at dinner = 44x
By the question;
The number of customers at lunch = Number of customers at dinner - 10
z = 42n = 44x - 10
z = 44x - 42n = 10
z = 2x = 10
z = x = 5
∴ Number of customers at lunch
= 42x
= 42 × 5
= 210
Thus the answer to your problem is, 210
47 students are picking two activities to do over the weekend.
7 picked painting and sport.
6 did not pick painting or sport.
Twice as many students picked sport than painting as one of their activities.
Find the amount that picked sport and not painting.
A self-selecting sample is Group of answer choices a good indicator of sample quality. not likely to be biased. guaranteed to be representative. not likely to be representative.
A self-selecting sample is not likely to be representative. The reason why a self-selecting sample is not likely representative would be discussed below.
What is self-selecting sample?A self-selection sample is determined by the individual that are used as data for the research. They are the ones that will determine the inclusion or exclusion of the sample units by either affirming or declining to participate.
The reason self-selecting sample is not likely to be representative is that it is too bias as the individuals that volunteered may not be able to satisfy the goals of the research.
Therefore, a self-selecting sample is not likely to be representative.
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if 4 -letterwords'' are formed using the letters a, b, c, d, e, f, g, how many such words are possible for each of the following conditions:(a) no condition is imposed.
The number of 4-letter words that can be formed without any condition imposed is 8,064.
To determine the number of 4-letter words that can be formed without any conditions, we can use the concept of permutations. Since we have 8 options (a, b, c, d, e, f, g) for each letter position, we can multiply the number of options for each position to find the total number of possibilities.
For the first letter position, we have 8 options to choose from. Similarly, for the second, third, and fourth positions, we also have 8 options each. Therefore, the total number of possibilities is:
8 options for the first position × 8 options for the second position × 8 options for the third position × 8 options for the fourth position = 8 × 8 × 8 × 8 = 8,064.
Hence, there are 8,064 possible 4-letter words that can be formed without any conditions imposed.
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X + 3/2x + 1/2x add all of them together to get a total of all the x’s
Answer:
the answer is 3x
Step-by-step explanation:
Step by Step Solution:
More Icon
STEP
1
:
1
Simplify —
2
Equation at the end of step
1
:
3 1
(x + (— • x)) + (— • x)
2 2
STEP
2
:
3
Simplify —
2
Equation at the end of step
2
:
3 x
(x + (— • x)) + —
2 2
STEP
3
:
Rewriting the whole as an Equivalent Fraction
3.1 Adding a fraction to a whole
Rewrite the whole as a fraction using 2 as the denominator :
x x • 2
x = — = —————
1 2
Equivalent fraction : The fraction thus generated looks different but has the same value as the whole
Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator
Adding fractions that have a common denominator :
3.2 Adding up the two equivalent fractions
Add the two equivalent fractions which now have a common denominator
Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:
x • 2 + 3x 5x
—————————— = ——
2 2
Equation at the end of step
3
:
5x x
—— + —
2 2
STEP
4
:
Adding fractions which have a common denominator
4.1 Adding fractions which have a common denominator
Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:
5x + x 6x
—————— = ——
2 2
Reducing to Lowest Terms :
4.2 The above result can still be reduced :
6x
—— = 3x
2
Final result :
3x
Jane moved from a house with 54 square feet of closet space to an apartment with 37.26 square feet of closet space. What is the percentage decrease of Jane's closet space?
Answer:
37.26 div by 54=0.69
Step-by-step explanation:
What is the probability of not rolling a 4. On a standard number cube?
1-5/6
2-1/6
3-1/2
4-2/3
Plz help I’m being timed
2 I believe, there are 6 possibilities on a die, 1-2-3-4-5-6. 4 is one of those numbers. Any of the sides could be rolled so each has a probability of 1 out of 6. 1/6 is your answer.
Find the percent of increase from 15 miles to 18 miles. Round the percent to the nearest tenth if necessary.
Answer: I Think it's 20%
How do you solve arithmetic overflow error converting numeric to data type numeric?
Arithmetic overflow error converting numeric to data type numeric can be solved by increasing the precision and the scale, storing number in different data type or use user-defined datatype.
An "arithmetic overflow error converting numeric to data type numeric" error occurs when you try to store a number in a numeric column that is too large to be represented by the specified precision and scale. To resolve this error, you have a few options:
Increase the precision and scale of the numeric column, you can increase the precision and scale of the numeric column so that it can store larger numbers.
Store the number in a different data type:If you don't need the precision and scale of a numeric column, you can store the number in a different data type, such as float or big int.
Round the number to a smaller value:If the number is too large to be represented in the numeric column, you can round it to a smaller value before inserting it into the database.
Use a user-defined data type:If the number is still too large to be represented in a numeric column or a different data type, you can create a custom data type in SQL Server to store the number.
It's important to choose the right solution based on your requirements and the specific use case. You may also need to consider the performance implications of each solution, especially if the data being stored is very large or complex.
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