Answer:
944.6 cm²
Step-by-step explanation:
You want the area of a label that covers the lateral surface of a cylinder with a 1 cm overlap of the ends. The cylinder is 7 cm in radius and 21 cm high.
CircumferenceThe circumference of the cylinder is ...
C = 2πr
C = 2π(7 cm) = 14π cm ≈ 43.982 cm
AreaThe area of the label is the product of its length and width. The length is 1 cm more than the circumference, so the area is ...
A = LW = (43.982 +1 cm)(21 cm) ≈ 944.6 cm²
The area of the label is about 944.6 cm².
A dog breeder recorded the weight of a puppy during the first eight months after it was born. The breeder created the equation w = 0.28m + 9.6, where w is the weight of the puppy in pounds and m is the number of months since the puppy was born. What is the meaning of the slope from the breeder′s equation? For every month after the puppy is born, the weight increases by 0.28 pounds. When the puppy is born, the total weight is 0.28 pounds. When the puppy is born, the total weight is 9.6 pounds. For every month after the puppy is born, the weight increases by 9.6 pounds.
EXPLANATION :
From the problem, we have the equation :
\(w=0.28m+9.6\)The slope 0.28 indicates the increase in weight every month.
Therefore, for every month after the puppy is born, the weight increases by 0.28 pounds
ANSWER :
For every month after the puppy is born, the weight increases by 0.28 pounds
16
Select the correct answer.
Which of the following graphs shows the solution set for the inequality below?
Ix+21+7>10
OA HH
OB. H
5
1 0 1 2 3
0 1
2 3 4
10
5 6
The solution set includes all real numbers less than -5, and all real numbers greater than 1, but does not include -5 or 1 themselves.
Option D is the correct answer.
We have,
We need to isolate the absolute value |x + 2| on one side of the inequality.
We subtract 7 from both sides.
|x + 2| > 3
Next, we can split this inequality into two separate inequalities, one for when the expression inside the absolute value is positive, and one for when it is negative:
x + 2 > 3
or
- (x + 2) > 3
Solving for x in the first inequality.
x > 1
Solving for x in the second inequality.
-x - 2 > 3
Adding 2 to both sides and multiplying by -1.
x < -5
So the solution set for the inequality |x + 2| + 7 > 10 is the set of all x-values that satisfy either x > 1 or x < -5.
Using interval notation.
(-∞, -5) U (1, ∞)
Thus,
The solution set includes all real numbers less than -5, and all real numbers greater than 1, but does not include -5 or 1 themselves.
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These points are linear. Find the slope.
to get the slope of any straight line, we simply need two points off of it, let's use those in the picture below.
\((\stackrel{x_1}{-4}~,~\stackrel{y_1}{0})\qquad (\stackrel{x_2}{2}~,~\stackrel{y_2}{8}) \\\\\\ \stackrel{slope}{m}\implies \cfrac{\stackrel{\textit{\large rise}} {\stackrel{y_2}{8}-\stackrel{y1}{0}}}{\underset{\textit{\large run}} {\underset{x_2}{2}-\underset{x_1}{(-4)}}} \implies \cfrac{8 }{2 +4} \implies \cfrac{ 8 }{ 6 } \implies \cfrac{4 }{ 3 }\)
53 POINTS!!!!!!!!!!!!!
The positive integers greater than 3 are arranged in rows and columns as illustrated.
In which column is the number 5018?
A) 2
B) 4
C) 6
D) 5
E) 3
The rows and columns of the positive integers greater than three are as shown. And the number 5018 is found in the third column.
When performing a permutation test, you repeatedly rearrange one of the variables without affecting the other variable (s). From the given table, we can start with column 4. Here, each row has about 6 numbers. That is singular row has numbers from columns 1 to 6 and an even row from columns 7 to 2.
Then subtract 5018 by 3. We get 5018-3=5015.
Divide this by 6,
5015/6 = 836.
So 5018 is located in an even row from 7 to 2.
Therefore, 5018 is located in the 836th row and 3rd column.
So the required answer is E) 3.
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The customer service department of a company found that the relationship between the number of minutes a customer spends on hold when telephoning and the customer's level of satisfaction on a 10-point scale can be approximated by the equation y=10−0.1x
, where x
is the number of minutes on hold and y
is the level of satisfaction. What does 0.1 represent in the equation?
In the equation y = 10 - 0.1x, the coefficient 0.1 represents the slope of the line.
Define slopeit represents the rate of change of y with respect to x, which is the amount by which y changes for every unit increase in x.
In this case, the slope is negative (-0.1), which means that as the number of minutes on hold (x) increases by 1 unit, the level of satisfaction (y) decreases by 0.1 units.
In other words, the longer a customer spends on hold, the lower their level of satisfaction is likely to be. The slope is a key parameter in the equation and provides valuable information about the relationship between the two variables.
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444 markers cost \$7.04$7.04dollar sign, 7, point, 04. Which equation would help determine the cost of 777 markers? Choose 1 answer: Choose 1 answer: (Choice A) A \dfrac{4}{7} = \dfrac{\$7.04}{x} 7 4 = x $7.04 start fraction, 4, divided by, 7, end fraction, equals, start fraction, dollar sign, 7, point, 04, divided by, x, end fraction (Choice B) B \dfrac{x}{7} = \dfrac{4}{\$7.04} 7 x = $7.04 4 start fraction, x, divided by, 7, end fraction, equals, start fraction, 4, divided by, dollar sign, 7, point, 04, end fraction (Choice C) C \dfrac{7}{x} = \dfrac{\$7.04}{4} x 7 = 4 $7.04 start fraction, 7, divided by, x, end fraction, equals, start fraction, dollar sign, 7, point, 04, divided by, 4, end fraction (Choice D) D \dfrac{4}{7} = \dfrac{x}{\$7.04} 7 4 = $7.04 x start fraction, 4, divided by, 7, end fraction, equals, start fraction, x, divided by, dollar sign, 7, point, 04, end fraction (Choice E) E None of the above
Answer:
A: \(\frac{4}{7}\)=\(\frac{7.04}{x}\)
Step-by-step explanation:
Khan Academy
4. Prove the following identities:
(a) (a ÷cos A+b ÷sin A)²+(a ÷ sin A-b ÷ cos A)²=a²+b²
By algebra properties and trigonometric formulas, the trigonometric expression (a · cos A + b · sin A)² + (a · sin A - b · cos A)² is equivalent to the algebraic expression a² + b².
How to prove a trigonometric expression
In this problem we must prove that the trigonometric expression (a · cos A + b · sin A)² + (a · sin A - b · cos A)² is equivalent to the algebraic expression a² + b², this can be done both by algebra properties and trigonometric formulas. First, write the given expression:
(a · cos A + b · sin A)² + (a · sin A - b · cos A)²
Second, expand the expression by algebra properties:
a² · cos² A + 2 · a · b · cos A · sin A + b² · sin² A + a² · sin² A - 2 · a · b · cos A · sin A + b² · cos² A
(a² + b²) · cos² A + (2 · a · b - 2 · a · b) · cos A · sin A + (a² + b²) · sin² A
(a² + b²) · (cos² A + sin² A)
Third, use the fundamental trigonometric formula:
a² + b²
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What is the quotient of 7.536\times 10^77.536×10
7
and 7.85 \times 10^27.85×10
2
expressed in scientific notation?
The value of Quotient from the given terms is 9.6* 10^8
According to the statement
we have given that the two terms and we have to find the quotient of the these terms.
So, we know that the
Quotient is a the number resulting from the division of one number by another.
And for find the quotient we have to divide the terms with each other.
So, The given terms are \(7.536*10^7\)and \(7.85*10^2\)
divide both terms with each other.
Quotient = \(\frac{7.536*10^7}{7.85*10^2}\)
Then
The value of quotient becomes
Quotient = \(0.96 * 10^9\)
After removing the decimal from the answer it will become
Quotient = \(9.6* 10^8\).
So, The value of Quotient from the given terms is 9.6* 10^8
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Answer: its 7.85x10^-9
Step-by-step explanation:
whats the answer, i need help cuz i cant figure it out.
Check the picture below.
\(\stackrel{AC}{x}~~ + ~~\stackrel{CB}{2x}~~ = ~~\stackrel{AB}{33}\implies 3x=33\implies x=\cfrac{33}{3}\implies \boxed{x=11} \\\\[-0.35em] ~\dotfill\\\\ \stackrel{\textit{\LARGE AC}}{11}\hspace{10em}\stackrel{\textit{\LARGE CB}}{2(11)\implies 22}\)
how to solve for reflection under transformation
Help and explain
Don’t use for points or I will take it back
Step-by-step explanation:
step 1. x + 51 + 39 + 127 = 360 (1 revolution is 360°)
step 2. x + 90 + 127 = 360
step 3. x + 127 = 270. (subtract 90 on both sides)
step 4. x = 143° (subtract 127 on both sides)
PLEASE HELP ME WITH THIS KHAN ITS NOT HARD IM JUST TIRED
I did 5 hours of Khan if you feel me
Answer:
It 2/4
Step-by-step explanation:
t 2/4 because on the graph the lines is on 2/4
Need help quick please
Answer:-1/6
Step-by-step explanation:
Draw a line out in the 2nd quadrant.
Your y=\(\sqrt{35}\) hypotenuse=6 use pythagorean theorem to solve for x
6² = 35 + x²
x=1
so
cosΘ = -1/6
19 students were surveyed on the number of hours of Netflix they watched last week.
The data from the survey is below:
{0, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4, 4, 4, 5, 5, 6, 6, 10, 11}
What is the range in hours spent watching Netflix?
Show your work for full points!
Answer:
Solution given:
lowest =0
highest=11
the range in hours spent watching Netflix=
highest-lowest =11-0=
Range is 11.
Answer:
Solution : here ,
lowest = 0
Highest = 11
the range in hours spent watching Netflix
=highest — lowest
= 11 —0
= 11
the range = 11
hope it is helpful to you
Hi guys I need help rq with this thanks
Answer:
0
Step-by-step explanation:
0 - 0 = 0
2 - 1 = 1
which is 0/1
remember slope is y - y1 / x - x1
Find the volume of the cylinder. Round your answer to the nearest tenth
3 m
5 m
Answer:141.4
Step-by-step explanation:
WILL GIVE BRAINLYEST 200 PO9NTS SENCE IM GIVING EXTRA
The range of the data set increased by 12 and the median of the data set is at 50.
Range of a Data SetThe Range of a data set is the difference between the lowest and highest values.
The range is the difference between the smallest and highest numbers in a list or set. To find the range, first put all the numbers in order. Then subtract (take away) the lowest number from the highest. The answer gives you the range of the list.
The given data set is;
15, 17, 19, 19, 22, 23, 25, 27, 32, 34
The range of this data set will be
range = 34 - 15 = 19.
Assuming we add another age of 46, the range will become
range = 46 - 15 = 31
This will impact the range of the data by 31 - 19 = 12.
The range will be impacted by an increase with 12.
Median of a Data SetThe median is the value that's exactly in the middle of a dataset when it is ordered. It's a measure of central tendency that separates the lowest 50% from the highest 50% of values. The steps for finding the median differ depending on whether you have an odd or an even number of data points.
The data set given is
48, 63, 75, 40, 32, 52, 35, 68, 83, 40
We have to rearrange the data points first before finding the median;
32, 35, 40, 40, 48, 52, 63, 68, 75, 83.
The median of the data set will be the average between 48 and 52 which is 50.
the median of the data is 50.
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in the accompanying diagram parallel lines ab and cd are cut by transversal ef. If e m<2= 72, what is m1
The measure of m<1 is 108 degrees from the provided figure.
Line geometry involving transversalsA line is an object in geometry that is indefinitely long and has neither breadth nor depth nor curvature. Lines are therefore one-dimensional objects, even if they can exist in spaces with two, three, or more dimensions.
From the diagram, we have the following parameters
m<2 = 72 degrees
Required parameters
The measure of angle m<1
From the figure, the sum of the interior angle is equivalent to 180 degrees, that is:
m<1 + m<2 = 180
m<1 = 180 - m<2
m<1 = 180 - 72
m<1 = 108 degrees
Hence the measure of m<1 from the given figure is 108 degrees.
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En una ciudad de 5000 habitantes, la tasa diaria
de infección con un virus de la gripe varia directamente con el producto de
personas infectadas y el número de personas no infectadas. Cuando se han
infectado 1000 personas, la gripe se esparce a razón de 40 nuevos casos por día.
¿Para qué número de personas infectadas, la tasa diaria de infección es la
máxima?
According to the information, the maximum infection rate is: k * 2500 * (5000 - 2500) = 6250k = 40
How to calculate for what number of infected people, the daily infection rate is the maximum?To address this problem, we can use the law of the infection rate, which states that the infection rate is directly proportional to the product of the number of people infected and the number of people not infected. Therefore, we can write:
infection rate = k * (infected people) * (uninfected people)where "k" is a constant of proportionality. Since we want to find the number of people infected that produces the maximum infection rate, we can consider the infection rate as a function of the variable "x" representing the number of people infected. Therefore, we can write:
infection rate = k * x * (5000 - x)To find the value of "x" that maximizes the infection rate, we can derive this function and set the derivative equal to zero:
d(infection rate)/dx = k * (5000 - 2x) = 0This implies that 5000 - 2x = 0, and therefore:
x = 2500Therefore, the number of infected people that produces the maximum daily rate of infection is 2,500.
However, we must verify that this result is consistent with the information given in the problem. We know that when there are 1,000 people infected, the flu spreads at the rate of 40 new cases per day. Therefore, if we add 1,500 more infected people (for a total of 2,500), the infection rate would be:
infection rate = k * 2500 * (5000 - 2500) = 6250kIf the infection rate is 40 new cases per day, we have:
40 = 6250kwhich implies that:
k = 0.0064Therefore, the maximum infection rate is:
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Help pls i dont understand this
The percent change in the number of water bottles the company manufactured from February to April is 19.5%, to the nearest percent.
What is the percentage?A % is a quantity or ratio that, in mathematics, represents a portion of one hundred. A dimensionless relationship between two numbers can be represented in a variety of ways, such as through ratios, fractions, and decimals.
The total number of water bottles the company manufactured in February, March, and April.
In February, the company manufactured 4,100 water bottles. In March, the company manufactured 7% more water bottles than in February, which is 7/100 * 4,100 = 287 water bottles.
Therefore, the total number of water bottles the company manufactured in March is 4,100 + 287 = 4,387 water bottles. In April, the company manufactured 500 more water bottles than in March, which is 4,387 + 500 = 4,887 water bottles.
This is calculated as (4,887 - 4,100) / 4,100 = 0.195 or 19.5%.
Therefore, the percent change in the number of water bottles the company manufactured from February to April is 19.5%, to the nearest percent.
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Solve the triangle MNO (find m<O and the lengths of sides m and n).
The measure of angle O is 56 and the value of m and n are 8.1 in and 14.5 in respectively.
What is trigonometric ratio?Trigonometric Ratios are defined as the values of all the trigonometric functions based on the value of the ratio of sides in a right-angled triangle. The longest side is hypotenuse and it is the side facing the right angle. The other two sides are opposite and adjascent.
sin(tetha) = opp/hyp
cos(tetha) = adj/hyp
tan,(tetha) = opp/adj
angle O = 180-(90+34)
= 180- 124
= 56°
To find m,
Tan 34 = m/12
m = Tan34 × 12
m = 8.1 in
using Pythagoras theorem to find n,
n= √8.1²+12²
n = √65.61+144
n = √209.61
= 14.5 in
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Last year 85 students in 7th grade This school year only 68 What is the percent decrease?
Answer: 11.11%
17:153*100 =
(17*100):153 =
1700:153 = 11.11
PLEASE HELP FAST I’M HAVING A LITTE TROUBLE PLEASE GIVE THE RIGHT ANSWER
Answer:
C) 1/2 and 8
Step-by-step explanation:
-2x + y = 7 Eq. 1
6x + y = 11 Eq. 2
From Eq. 1:
y = 7 + 2x Eq. 3
From Eq. 2:
y = 11 - 6x Eq. 4
Equalyzing Eq. 3 and Eq. 4:
7 + 2x = 11 - 6x
2x + 6x = 11 - 7
8x = 4
x = 4/8
x = 1/2
From Eq. 3:
y = 7 +2* 1/2
y = 7 + 1
y = 8
Check:
From Eq. 2
6x + y = 11
6*1/2 + 8 = 11
3 + 8 = 11
use integration by parts to evalute the following integral, where a and b are real numbers except 0.∫sin(ax)sin(bx)dx
The integral of sin(ax)sin(bx)dx evaluated using integration by parts is [- b cos(ax) sin(bx) - a cos(ax)sin(bx)] / [1 - ab] + C, where C is the constant of integration.
Let u = sin(ax), dv = sin(bx) dx, then du/dx = a cos(ax), v = - (1/b) cos(bx).
By integration by parts, we have:
∫sin(ax)sin(bx)dx = - (1/b) sin(ax) cos(bx) - ∫cos(ax)cos(bx) (a/b) dx
Next, let u = cos(ax), dv = cos(bx) dx, then du/dx = -a sin(ax), v = (1/b) sin(bx).
Using integration by parts again, we have:
∫sin(ax)sin(bx)dx = - (1/b) sin(ax) cos(bx) - [ (a/b)cos(ax)sin(bx) - (a/b^2) ∫sin(ax)sin(bx) dx]
Multiplying both sides by b^2 and rearranging, we get:
b^2 ∫sin(ax)sin(bx)dx = - b cos(ax) sin(bx) - a cos(ax)sin(bx) + a b ∫sin(ax)sin(bx)dx
Simplifying, we get:
[1 - ab] ∫sin(ax)sin(bx)dx = - b cos(ax) sin(bx) - a cos(ax)sin(bx)
Thus, we have:
∫sin(ax)sin(bx)dx = [- b cos(ax) sin(bx) - a cos(ax)sin(bx)] / [1 - ab]
Therefore, we have evaluated the given integral using integration by parts.
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A card is fresh from an ordinary deck. Find the probability that it did a diamond given that it is a jack
Answer:
1/52
Step-by-step explanation:
A deck has 52 cards and the probability of picking a specific one is 1/52, or 1.92%
If you are looking for the probability of a diamond, it is 1/4, or 25%
Vincenzo plotted point K in the coordinate plane below
Answer:
The first one ( x and y are switched)
Step-by-step explanation:
it should be (1/2, -1/2)
when graphing you must go across and then up or down.
He went right which meant a positive x
then he went down which meant a negative y
Answer:2
Step-by-step explanation:
1+1=2
What is the domain of the following function?
The domain of the function or relation is {6, 9, -4 and 2}
How to determine the domain of the function?The function is represented by the set of relation or ordered pairs
The ordered pairs in the relation are:
(x, y) = (6, -3), (9, -3), (-4, 1) and (2, 1)
Remove the y values in the above domain
x = 6, 9, -4 and 2
The x values represent the domain of the function
Hence, the domain of the function or relation is {6, 9, -4 and 2}
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given cot A= 40/9 and that angle A is in quadrant 1 find the exact value of sec A in the simplest radical form using a rational denominator
Answer:
41/40Step-by-step explanation:
Given cotA = 40/9
1/tanA = 40/9
tanA = 9/40
According to SOH, CAH, TOA
tan A = 9/40 = opposite/adjacent
Get the hypotenuse
hyp² = opp²+adj²
hyp² = 9²+40²
hyp² = 81+1600
hyp² = 1681
hyp = √1681
hyp = 41
Het sec A
sec A = 1/cosA
Since cos A = adjacent/hypotenuse
cos A = 40/41
secA = 1/(40/41)
SecA = 41/40
Hence the exact value of secA is 41/40
When solving the equation, which is the best first step to begin to simplify the equation?
-2(x+3) =-10