A cylinder has a height of 9 cm and a radius of 10 cm. What is the surface area of the
cylinder in terms of r?
380 cm
2007 cm
0342 cm
280 cm
Please HELPPPP
Answers
Answer:
Step-by-step explanation:
Related Questions
Mae Ling earns a weekly salary of $365 plus a 5.0% commission on sales at a gift shop. How much she make in a workweek if she sold $4,800 worth of merchandise?
Answers
The amount that she make in a workweek if she sold $4,800 worth of merchandise will be $605.
How to calculate the value?A percentage is a value or ratio that may be stated as a fraction of 100. If we need to calculate a percentage of a number, we should divide it's entirety and then multiply it by 100.
Here, Mae Ling earns a weekly salary of $365 plus a 5.0% commission on sales at a gift shop.
The amount that she make in a workweek if she sold $4,800 worth of merchandise will be:
= $365 + (5% × $4800)
= $605
The amount is $605.
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what is the number of fluid ounces in 7 cups.
Answers
Answer:
56 ounces :)
Step-by-step explanation:
56 fluid ounces
Step-by-step explanation:
7 × 8 = 56
Hope this helps, have a good day!
Given f(x)=11^x, what is f^-1(x)?
Answers
Answer:
The first one
\( log_{11} \: (x)\)
Step-by-step explanation:
f(x) = 11^x
Here are the steps to find the inverse of a function:
1. Let f(x)=y
2. Make x the subject of formula.
3. Replace y by x.
\(11 {}^{x} = y \\ \: log(11 {}^{x} ) = log(y) \\ x log(11) = log(y) \\ x = \frac{ log(y) }{ log(11) } = log_{11}(y) \\ f {}^{ - 1} (x) = log_{11}(x) \)
simplify (-2) × (6-5) × (-5)
Answers
-2x(6-5)x-5
-2x1x-5
-2x-5
=+10
Answer: 10
Step-by-step explanation:
6-5 = 1
-2 x 1 = -2
-2 x -5 = 10
The average expenditure for hip replacement is $12,485 for country A and 14,438 for country B. the P value(two tailed) is 0.063. What do the data determine in this scenario? a. if average expenditure in country A can predict expenditure in country B b. if there is a relationship in average expenditure between the two countries c. if there is difference in average expenditure between the two countries d. if the average expenditure in country A and country B are normally distributed A sample of rural residents was surveyed to determine the number of times for residents saw a primary care provider in one year. On average, the participants saw their provider 3.3 times per year. ( 95% confidence interval 0.1 to 6.1 ) why was this of statistical use for this sample? a. It was a count variable b. It was a categorical variable c. It is a binary variable d. It is a ratio variable Administrators at a rural hospital want to determine causes for their financial distress. In doing so, they have identified that the average operating margin for a rural hospital is −1.32% (stander deviation is ±0.89% ) Why is the average operating margin appropriate to use in this situation? a. It is a measure of the fifth percentile b. it identifies the range of the data c. it identifies the outliers in the data d. it is a measure of central tendency Ebola is transmitted through human contact. although relief agencies sent medical team to provide treatment the impacted communities prefer to maintain isolation against outsiders. the distrust of outsiders 'cause a hesitancy to accept treatment. which consideration factor will ultimately contribute to the spread of Ebola? a. the influence of non-indigenous people b. the population density of the affected area c. dry and air climates which suits the virus d. the cultural influence of the community Last year a developing country had 1500 reported cases of malaria. during that time there were 400 deaths reported from the disease: 300 of the disease were people over age 18 , in 100 deaths were people underage 18 . What is the case fatality rate? 100∗100/400=25 400∗10/1500=2.67 100∗10/400=2.5 400∗100/1500=26.67
Answers
The case fatality rate is 400 * 100 / 1500 = 26.67 (option d).
For the first scenario, the data determine that there is a difference in average expenditure between the two countries (option c). The P-value of 0.063 suggests that there is a moderate level of statistical significance, indicating that the difference in average expenditure is likely not due to random chance.
In the second scenario, the fact that the 95% confidence interval for the average number of times participants saw their provider per year (3.3) ranges from 0.1 to 6.1 is of statistical use because it provides a range estimate within which the true population means is likely to fall. This interval helps account for the uncertainty associated with the sample estimate and provides a measure of the precision of the estimate (option a).
For the third scenario, the average operating margin is appropriate to use because it is a measure of central tendency that represents the typical financial performance of rural hospitals. The standard deviation provides information about the variability of the operating margins (option d).
In the fourth scenario, the consideration factor that will ultimately contribute to the spread of Ebola is the population density of the affected area (option b). While factors like the influence of non-indigenous people and climatic conditions may play a role, population density is a key determinant in the transmission and spread of infectious diseases.
For the fifth scenario, the case fatality rate is calculated by dividing the number of deaths from the disease (400) by the total reported cases (1500) and multiplying by 100. Therefore, the correct calculation is 400 * 100 / 1500 = 26.67 (option d). This indicates that the case fatality rate is approximately 26.67%.
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You have $1200 to invest in an account and need to have $1900 in one year. What interest rate would you need to have in order to reach this goal if the amount is compounded quarterly? Round your answer to the nearest percent. please help
a. 48.7%
b. 10.5%
c. 8%
d. 44%
Answers
The interest rate that would reach this goal of having $1,900 with the investment of $1,200 compounded quarterly for one year is a) 48.7%.
How is the interest rate determined?The interest rate is the rate at which the present value of $1,200 needs to be compounded quarterly to yield a $1,900 future value in one year.
The interest rate can be computed using an online finance calculator as follows:
Data and Calculations:N (# of periods) = 4 quarters
FV = $1,900.05
PV (Present Value) = $1,200
PMT (Periodic Payment) = $0
Results:
I/Y (Interest per year) = 48.7%
Total Interest = $700.05
Thus, the interest rate that would the investor to achieve their goal is a) 48.7%.
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. PLEASE THIS IS A BIG TEST HELP FAST
Identify the correct measure of the pen, to the nearest 1/8 inch.
Answers
cot 75= 2 - square root 3
Answers
Answer:
The value of cot 75° is 2 - √3 or 0.2679(approx).
Step-by-step explanation:
I hope it helps!
Muffin<3
The equation of line line a gis y = (startfraction b over a c endfraction)x. the midpoint of bc is (a c, b). does the midpoint of bc lie on line a g? why or why not? no, because (startfraction b over a c endfraction)b does not equal a c no, because (startfraction b over a c endfraction)(a c) does not equal b yes, because (startfraction b over a c endfraction)b = a c yes, because (startfraction b over a c endfraction)(a c) = b
Answers
yes, because the midpoints (a+c) = b
Given that the line's equation is y=x.
B and C are the two points on this line.
( a+ c, b) is the midpoint of B and C.
We can see from this that using the midpoint formula
a + c = \(\frac{x1+x2}{2}\)
b=\(\frac{y1+y2}{2}\)
Because both points are on y=x, we get
x1=y1, x2=y2.
As a result, x1 = a+c and 2y1 = 2b or y1 =b.
Because x1=y1, we have a+c =b.
In other words, the coordinates of the midpoint satisfy the equation y=x.
Thus, the answer is
because (a+c) = b
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at the fidelity credit union, a mean of 6.5 customers arrive hourly at the drive-through window. what is the probability that, in any hour, less than 5 customers will arrive? round your answer to four decimal places.
Answers
The probability that in any hour, less than 5 customers will arrive is 0.2237.
The probability mass function is a function that estimates the likelihood that a discrete random variable will match a given value exactly. The mode is the value of the random variable with the highest probability mass.
The number of customers entering the Fidelity Credit Union's drive-through window per hour might be considered the random variable X.
The random variable X defines a limited number of instances of an event occurring during a predetermined period of time.
With a value of 6.5, the random variable X follows a Poisson distribution.
The following is X's probability mass function:
\(P(X=x)=\frac{e^{-6.5}(6.5)^x}{x!}\)
Where x=0,1,2,3....
Now, finding the probability of less than 5 customers,
\(P(X=x)=P(X=0)+P(X=1)+P(X=2)+P(X=3)+P(X=4)\\=\frac{e^{-6.5}(6.5)^0}{0!}+\frac{e^{-6.5}(6.5)^1}{1!}+\frac{e^{-6.5}(6.5)^2}{2!}+\frac{e^{-6.5}(6.5)^3}{3!}+\frac{e^{-6.5}(6.5)^4}{4!}\\\\=0.0015034+0.00977235475+0.03176015295+0.06881366472+0.11182220518\\=0.223671778\\\approx0.2237\)
Therefore, the probability that in any hour, less than 5 customers will arrive is 0.2237.
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100 points !!!!!!!!!!!!!!!!!!!!!!!!!!
Answers
Answer:
36.86°Step-by-step explanation:
The angle measure we need is twice the angle ACB.
Find its measure considering AB = 4/2 = 2 in and BC = 6 in.
Use trigonometry:
tan(∠ACB) = AB/BC = 2/6 = 1/3m∠ACB = artctan (1/3)m∠ACB = 18.43° (rounded)The angle between the line segments is:
18.43° × 2 = 36.86°Step-by-step explanation:
Radius = Diameter/2
Radius = 4/2
Radius = 2 cm
Now,
tan <ACB = AB/BC
tan <ACB = 2/6
tan <ACB = ⅓
<ACB = 18.43
Now,
Angle = 2 × <ACB
Angle = 2 × 18.43
Angle = 36.86⁰
Cheryl is buying lace for her dance costume. One foot of lace costs 3 dollars. How much does each amount cost? 3/4
Answers
Answer:
2.25 np
Step-by-step explanation:
Cost of one foot lace is $2.25
Given that;Cost of one foot lace = $3
Find:Cost of 3/4 foot lace
Computation:Cost of 3/4 foot lace = [3/4][Cost of one foot lace]
Cost of one foot lace = [3/4][3]
Cost of one foot lace = 9/4
Cost of one foot lace = $2.25
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if a new tax of $1.50 a chocolate bar is imposed, what is the change in the quantity of chocolate bars bought, who pays most of the tax, and what is the deadweight loss?
Answers
The deadweight loss of a tax depends on the responsiveness of both producers and consumers to changes in the price of the good.
A tax of $1.50 a chocolate bar will cause the price of chocolate bars to increase, resulting in a decrease in the quantity of chocolate bars bought. The demand curve for chocolate bars will shift to the left.
Consumers are going to be less willing to buy chocolate bars if the cost is higher. Producers, on the other hand, would be willing to supply less of the chocolate bars since they would be earning less profit.The burden of the tax is divided between consumers and producers.
Consumers will pay some of the tax because they will have to pay a higher price for the chocolate bar, but producers will also pay some of the tax because they will receive less money per chocolate bar sold. However, since the demand for chocolate is inelastic, consumers will bear the majority of the tax burden.
The deadweight loss is the economic inefficiency caused by the imposition of a tax. It is a loss of consumer and producer surplus that occurs when a market is not in equilibrium. A deadweight loss is incurred when taxes raise the price of a good above the equilibrium level. In other words, a deadweight loss is incurred when taxes result in a loss of consumer and producer surplus.
The deadweight loss of a tax is typically calculated as the area between the supply and demand curves from the new equilibrium price and quantity, compared to the original equilibrium price and quantity.
The magnitude of the deadweight loss depends on the elasticity of demand and supply for the good being taxed.
Therefore, the deadweight loss of a tax depends on the responsiveness of both producers and consumers to changes in the price of the good.
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which of the following show an element of the sample space for first rolling a die and then tossing a coin?
A. 21
B. T3
C. TT
D. 5H
Answers
Help ulitt ihihihihi
Answers
Answer:
1.A , 2.B , 3.D , 4.B , 5.C
Step-by-step explanation:
hope this helped! :)
if the base b of a triangle is increasing at a rate of 3 inches per minute while its height h is decreasing at a rate of 3 inches per minute, which of the following must be true about the area a of the triangle?select one:a.a is always increasingb.a is always decreasingc.a is decreasing only when b < hd.a is decreasing only when b >he.a remains constant
Answers
Option (c) is true only when b < h.
We have to find which of the following must be true about the area a of the triangle if the base b of a triangle is increasing at a rate of 3 inches per minute while its height h is decreasing at a rate of 3 inches per minute.Area of a triangle is given by: A = (1/2)bhDifferentiating both sides with respect to time, we get:dA/dt = (1/2)(b dh/dt + h db/dt)Given, db/dt = 3 (in/min), dh/dt = -3 (in/min)dA/dt = (1/2)(b(-3) + h(3))= (3/2)(h - b)
Since h and b are both decreasing at the same rate, their difference (h-b) will remain constant. Therefore, dA/dt will be zero, which means the area a of the triangle remains constant.Answer: e. a remains constant.Explanation:When the height h and the base b of a triangle are changing with time, its area A is given by A = (1/2)bh.
To differentiate the given formula with respect to time, we will apply the product rule as follows:dA/dt = (1/2)d/dt (bh) = (1/2)(db/dt)h + (1/2)b(dh/dt)Differentiating this with respect to time again, we get:d^2A/dt^2 = (1/2)(d^2b/dt^2)h + (1/2)(db/dt)(dh/dt) + (1/2)b(d^2h/dt^2) = (1/2)(d^2b/dt^2)h - (1/2)3b^2where we have used the fact that db/dt = 3 in/min and dh/dt = -3 in/min.
Since the second derivative of the area with respect to time is negative, it means the area of the triangle is decreasing. Therefore, option (c) is true only when b < h.
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Assume that the data (table below) is available on the top 10 malicious software instances for last year. The clear leader in the number of registered incidences for the year was the Internet wormKlez, responsible for 61.22% of the reported infections. Assume that the malicious sources can be assumed to be independent The 10 most widespread malicious programs Place Name % Instances 1 1-Worm.Klez 61.22% 2 I-Worm.Lentin 20.52% 3 1-Worm. Tanatos 2.09% 4 1- Worm.Badtransli 1.31% 5 Macro. Word97. Thus 1.19% 6 1-Worm.Hybris 0.60% 7 1-Worm.Bridex 0.32% 8 1- Worm. Magistr 0.30% 9 Win95.CIH 0.27% 10 I-Worm.Sircam 0.24% In the Inln Computer Center there are 35 PCs: 10 of them are infected with at least one of the top 10 malicious software listed in the given table. If Israel, the lab technician, randomly selects 5 PCs for inspection, what is the probability that he finds at least two infected PC's? Please use 4 decimal digits
Answers
The probability that Israel, the lab technician, finds at least two infected PCs out of the randomly selected 5 PCs is 0.8590.
To calculate the probability, we need to consider the complement of the event "finding less than two infected PCs," which means finding zero or one infected PC. Let's calculate the probability of each case separately.
Case 1: Finding zero infected PC:
The probability of selecting a non-infected PC from the 35 available PCs is (1 - 10/35) = 0.7143. Since we are selecting 5 PCs without replacement, the probability of finding zero infected PCs is (0.7143)^5 = 0.1364.
Case 2: Finding exactly one infected PC:
The probability of selecting one infected PC and four non-infected PCs can be calculated as follows:
- Selecting one infected PC: (10/35) = 0.2857
- Selecting four non-infected PCs: (25/34) * (24/33) * (23/32) * (22/31) ≈ 0.5272
The total probability of finding exactly one infected PC is 0.2857 * 0.5272 = 0.1507.
Therefore, the probability of finding less than two infected PCs is the sum of the probabilities from case 1 and case 2, which is 0.1364 + 0.1507 = 0.2871.
Finally, the probability of finding at least two infected PCs is the complement of the above probability, which is 1 - 0.2871 = 0.7129. Rounded to four decimal places, this is approximately 0.8590.
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can some one explain this to me
Answers
D) y = 2x + 8
Step-by-step explanation:Parallel lines are coplanar lines that never intersect.
Parallel Slopes
All parallel lines have the same relationship between their slopes. For 2 lines to be parallel, their slopes must be equal. The question tells us that the slope of the first line is 2. This means that only answer choices B and D are viable.
The slopes of answer choices A and C are perpendicular to the line given.
Testing the Answers
Both B and D could be parallel to the line given; however, we are also told that the line must pass through (-2, 4). To see which answer is correct, we can plug in the x and y-values and solve. If a line passes through a point, then the equation will be true when the values are plugged in.
Let's start with answer B.
4 = 2(-2) + 44 = 0Since this statement is not true, we know that y = 2x + 4 does not pass through the point (-2, 4).
Next, we need to test answer choice D.
4 = 2(-2) + 84 = 4This is true, so y = 2x + 8 must pass through the point (-2, 4). Since answer choice D has a parallel slope and passes through (-2, 4), it must be the correct answer.
Which ordered pair is a solution of the system?
x + y = 4
3x-y = 0
Answers
Answer:
3x-y=0
Step-by-step explanation:
Can someone please help me with this?
Show work please
Answers
Answer: 2289.06
Step-by-step explanation:
math expert
Answer:
r = 169.56 in. / 2π ≈ 27 in.
Now we can use the radius to find the area:
Area = πr^2 ≈ π(27 in.)^2 ≈ 2289.06 in^2
So the area of the circular table is approximately 2289.06 square inches, rounded to the nearest hundredth. The answer is option C.
arkadaşlar çanta yayınları deneme 10 daki çözümleri atarmısınız lütfen şık istemiyorum sadece çözümleri ACİL BAKARMISINIZ
Answers
Answer:
What you said doesnt make sense
Step-by-step explanation:
"
friends bag publications trial 10 could you throw the solutions please I don't want stylish, just look at the solutions urgently" Please say what you mean.
What is the equation of the line that passes through the point (8,4) and has an undefined slope?
Answers
Answer:
x = 8
Step-by-step explanation:
An undefined slope indicates that the line is vertical and parallel to the y- axis with equation
x = c ( c is the value of the x- coordinates the line passes through )
the line passes through (8, 4 ) with x- coordinate 8 , then
x = 8 ← equation of line
4
If this helped you please mark brainlyest
h e l p p p p p p p p
Answers
Answer: Correct answer is A.
Step-by-step explanation:
When finding zeros of a function, take what is in the parenthesis and set it equal to zero then solve.
x+2=0
-2 -2
x=-2
x-3=0
+3 +3
x=3
3x-5=0
+5 +5
3x=5
divide 3 on both sides
x= 5/3
-
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I hope this helps,
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The Answer is A
X + 2 = 0
X = -2
X - 3 = 0
X = 3
3x - 5 = 0
X = 5/3
-2.25x+8.75x+10-20 solve x pls
Answers
Answer:
im gonna assume the 10 - 20 is what the equation is = to if not x wouldnt be = to anything x = -1.5
Step-by-step explanation:
-2.25x + 8.75x = 10-20
-2.25x+ 8.75x = -10
6.50x = -10 divide both sides by 6.5
x = -1.5
Select the correct answer.
Graph the following system of inequalities.
y ≥x-2
y ≤-4x - 2
y
-6-5
6
0 1 2 3 4
X
9
5
2
F
6
12 RE
NUE
F
4 5 6
Answers
Answer:
I don't understand the formatting after the first two equations.
Step-by-step explanation:
See attached graph.
Expand and simplify (x+4) (x-3) (3x+2)
Answers
Apply the distributive property.
Chris earns a fixed amount of money every month. At the end of 2 years, Chris had earned $86,688.
He earned $_____ each year.
He earned $____every month.
Answers
He earned $ 3612 every month
What value of m would make parallelogram wxyz a square.
Answers
To make parallelogram WXYZ a square, the value of m should be 90 degrees.
A square is a special type of parallelogram in which all angles are right angles (90 degrees). In a parallelogram, opposite angles are congruent, which means they have the same measure. To transform the parallelogram WXYZ into a square, we need to make sure that all angles of the parallelogram are right angles.
By setting m = 90 degrees, we ensure that all four angles of parallelogram WXYZ are right angles. This condition will make the parallelogram into a square. A square has congruent sides and diagonals that bisect each other at right angles.
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what is 3422.4 divided by 544
Answers
6.29117647059
This is the answer
Answer: 6.29117647059
Step-by-step explanation:
divide the problem :)
BRAINLIEST ANSWER TO WHOEVER ANSWERS FIRST... What is the volume of the sphere in terms of *pi ? in
Answers
Formula for the volume of a sphere: V = 4/3 x pi x r^3
V = 4/3 x pi x 6^3
V = 4/3 x pi x 216
V = 288 pi in^3
Hope this helps!
Answer:
288 pi in ^3
Step-by-step explanation:
The volume of a sphere is given by
V = 4/3 pi r^3 where r is the radius
V = 4/3 pi *( 6)^3
V = 4/3 pi (216)
V = 288 pi in ^3