The wrap has an area of 1.12π square inches.
What is a cylindrical shape?A cylinder is a three-dimensional solid object with two bases that are identically circular and are connected by a curving surface that is located at a specific height from the center.
Examples of cylinders are toilet paper rolls and cold beverage cans.
The volume of a cylinder is πr²h.
Curved surface area = 2πrh.
Total surface area = 2πr(h + r).
Given, The net of a cylinder with a diameter of both circles labeled 1.6 inches.
So, The complete circle or the circumference of the circle will be the length of the wrap which is,
= 2π×0.8.
= 1.6π and the height of the wrap is 0.7 inches.
Therefore, the area of the wrap is 1.6π×0.7 square inches.
= 1.12π square inches.
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Answer: The real answer is 2.4π square inches (B)
Step-by-step explanation:
(Get ready for a long explanation)
So, we are trying to find the Surface Area of the cylinder.
We need to use the formula (SA = 2πr^2 + 2πrh)
Looks like a very long formula, but let do it in parts.
So the first part is just finding the area of the circle and multiplying by 2 because there are two bases. The area formula for circles is (πr^2)
But this time put a 2 in there. (2πr^2)
Okay lets get started. The diameter is 1.6. The radius is half the diameter, so divide 1.6 by 2 and you will get 0.8 which is the radius.
Now times the radius by itself (0.8 * 0.8 = 0.64) Now times that by 2 (0.64 * 2 = 1.28) The answer should be in terms of pi so just put the pi symbol next to 1.28 (1.28π)
On to the next part, (2πrh) you are basically taking the circumference of either circle base, and multiplying that by the height, which is (0.7)
The formula for Circumference is (2πr)
We already have the diameter so we don't need times the radius by 2.
So take the diameter of the circle base (1.6) and multiply that by the height, which is (0.7)
(1.6 * 0.7 = 1.12π)
Now for the last part, we need to add the two values together to find the surface area.
The first value we found is (1.28π ) and the second is (1.12π)
Now add (1.28π + 1.12π = 2.4π)
Answer: 2.4π square inches
Sorry for the really long explanation. I took the same test and I got it right so here is proof that it is correct. Have a great day y'all.
in the figure, the dashed line divides the arrow in half What is the total area of the arrow?
4am
CA 80square centimeters
08
68 square centimeters
0 32 square centimeters
2cm
2pm
5cm
On solving the provided question, we can say that The area of the arrow is equal to A = A1 + A2 = 68+12 = 80 cm sq.
What is area?The size of an area on a surface can be expressed as an area. The area of an open surface or the boundary of a three-dimensional object is referred to as the surface area, whereas the area of a planar region or planar region refers to the area of a form or planar layer. The total amount of space filled by a planar (2-D) surface or shape of an object is known as its area. Draw a square on a piece of paper using a pencil. a character with two dimensions. The area of a shape on paper is the space it takes up. Imagine that the square is composed of more compact unit squares.
The area of rectangle is equal to
A1 = LW
L = 17cm
W = 4cm
A1 = 68 cm sq.
The area of triangle is equal to
A2 = 1/2*b*h
A2 = 1/2*8*3
A2 = 12 cm sq.
The area of the arrow is equal to
A = A1 + A2 = 68+12 = 80 cm sq.
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The correct question is -
In the figure, the dashed line divides the arrow in half. What is the total area of the arrow? 60 square centimeters 68 square centimeters 80 square centimeters 82 square centimeters
∠A and ∠B are complementary angles. If m∠A = (2x-20) and m∠B = (3x+1) then find the measure of ∠A
Answer:
∠ A = 23.6°
Step-by-step explanation:
complementary angles sum to 90°
sum the 2 angles and equate to 90
2x - 20 + 3x + 1 = 90
5x - 19 = 90 ( add 19 to both sides )
5x = 109 ( divide both sides by 5 )
x = 21.8
Then
∠ A = 2x - 20 = 2(21.8) - 20 = 43.6 - 20 = 23.6°
PLSSSS UNDER 5 MINNN!!!!!!
what is the period of the sinusoidal function? enter your answer in the box.
The period of the sinusoidal function is given as follows:
5 units.
How to obtain the period of the function?A periodic function is a function that has the behavior repeating in intervals over the domain of the domain.
Then the period of the function is defined as the shortest difference between two points in which the function has the same behavior.
One of the examples of the shortest difference in this problem is between x = 1 and x = 6, hence the period is calculated as follows:
6 - 1 = 5 units.
Meaning that for the sinusoidal function, the following statement is true:
f(x + 5) = f(x) for all values of x.
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Find the number that makes the ratio equivalent to 2:1.
Prove by induction [tex]n^5+(n+1)^5+(n+2)^5+(n+3)^5+(n+4)^5[/tex] is divisible by 25 for any n greater than or equal to 1.
n⁵ + (n+1)⁵ + (n+2)⁵ + (n+3)⁵ + (n+4) is not divisible by 25.
What is Mathematical induction?Mathematical Induction is a technique of proving a statement, theorem or formula which is thought to be true, for each and every natural number n.
Given expression,
n⁵ + (n+1)⁵ + (n+2)⁵ + (n+3)⁵ + (n+4)
To prove: above expression is divisible by 25.
Putting n = 1 in the expression
1⁵ + (1+1)⁵ + (1+2)⁵ + (1+3)⁵ + (1+4)
= 1 + 2⁵ + 3⁵ + 4⁵ + 5
= 1 + 32 + 243 + 1024 + 5
= 1305
which is not divisible by 25.
Hence, 25 is not divisor of n⁵ + (n+1)⁵ + (n+2)⁵ + (n+3)⁵ + (n+4)
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One method of approximating a value is called
Answer:
Step-by-step explanation:
An equivalent method of approximating values of functions is called an approximation using differentials
number 9 only please help
The series given in number 9 is a convergent series
How to determine the convergence or divergenceFrom the question, we have the following parameters that can be used in our computation:
Tthe summation of 1/(n^(1/5)) from n=1 to infinity
To determine the convergence or divergence of the summation notation, we can use the comparison test.
The series 1/n^(1/5), which is a convergent p-series with p = 1/5.
Since 1/(n^(1/5)) <= 1/n^(1/5) for all n
It implies that the given series converges by the comparison test.
Therefore, the summation notation converges.
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the very last question. i need this now its an important grade.
Answer:
158
Step-by-step explanation:
So the sample size said 15 out of 50. Using the sample size to relate to the total number of students, we get this ratio
[tex] \frac{15}{50} = \frac{x}{526} [/tex]
Let's cross multiply
[tex]50x = (15)(526)[/tex]
[tex]50x = 7890[/tex]
Last, divide by 50 to get X alone
[tex]x = 157.8[/tex]
Which rounds up to 158
Janna wants to make s'mores at the backyard campfire. The table below shows the parts of marshmallows to graham crackers to make s'mores.
S'mores Marshmallows Graham Crackers
4 8 12
15
At this rate, how many marshmallows and graham crackers will Janna use to make 15 s'mores?
Janna will use 17 marshmallows and 21 graham crackers to make 15 s'mores.
Janna will use 16 marshmallows and 24 graham crackers to make 15 s'mores.
Janna will use 25 marshmallows and 48 graham crackers to make 15 s'mores.
Janna will use 30 marshmallows and 45 graham crackers to make 15 s'mores.
Janna will use 30 marshmallows and 45 graham crackers to make 15 s'mores.
What is multiplication?Multiplication is a mathematical arithmetic operation. It is also a process of adding the same types of expression for some number of times.
Example - 2 × 3 means 2 is added three times, or 3 is added 2 times.
Given:
Janna wants to make s'mores at the backyard campfire.
The table below shows the parts of marshmallows to graham crackers to make s'mores.
S'mores Marshmallows Graham Crackers
4 8 12
15
That means, the rate is,
8/4 = 2 Marshmallows for each S'mores,
And 12/4 = 3 Graham Crackers for each S'mores.
Therefore, 30 marshmallows and 45 graham crackers to make 15 s'mores.
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Answer:
30 marshmallows and 45 graham crackers
Step-by-step explanation:
The difference between the monthly high and low temperatures was less than 27° Fahrenheit. The monthly low temperature was –2° Fahrenheit. Select the choices that make the inequality and statement about the possible monthly high temperature correct.
Answer:
The monthly high temperature must be less than 25° Fahrenheit.
Choose the grid reference number for the mine shown.
A. 641242
B. 126424
The grid reference number is 623313.
None of the given option is correct.
What is graph?In mathematics, a graph is a visual representation or diagram that shows facts or values in an ordered way.
The relationships between two or more items are frequently represented by the points on a graph.
The grid is given in the attached image.
From the given graph:
The grid number is,
623313.
Therefore, the grid number is 623313.
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Isla is given $100,000 for college expenses. She deposits the money in a bank account that doesn't pay any interest on the money, and she makes no further deposits into the account. Two weeks after the start of each semester, Isla withdraws $8,500 to pay her tuition. Suppose it takes Isla a total of 10 semesters to complete her college degree, and each semester costs $8,500. What sequence represents the amount of money left in Isla's bank account at the beginning of each semester? Is there money left in her account after she graduates? Explain.
1) The sequence that represents the amount of money left in Isla's bank account at the beginning of each semester is 100,000 - 8,500n.
2) At the end of 10 semesters when Isla graduates, the amount of money left in her account (balance) is $15,000.
How the balance is determined:The total deposit in Isla's account with interest = $100,000
The withdrawal per semester = $8,500
The number of semesters for Isla to graduate = 10
Let n represent the number of past semesters.
After of money left after each semester can be modeled as 100,000 - 8,500n.
Based on this sequence, after 10 semesters, Isla's account have a balance of $15,000 (100,000 - 8,500(10).
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Gabe goes to the mall. If c is the number of items he bought, the expression 18.29c+23 gives the amount he spent in dollars at one store. Then he spent 21 dollars at another store. Find the expression which represents the amount Gabe spent at the mall. Then estimate how much Gabe spent if he bought 7 items.
The expression which represents the amount he spent at the mall and the estimate of how much Gabe spent if he bought 7 items are:
1. 16.62d + 26 = m 2. $152.34How to find the answer?For the first part of the question, you put the unknown variable multiplied by 16.62.
Next, what you have to do is to then add 26 which equals an unknown variable.
For the second part, since we want to find an estimate of how much Gabe spent if he bought 7 items, we would have to multiply 16.62 by 7 and add 26.
This would be $152.34
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Question 8 (1 point) Cost of U. S. Homes Let 1990 - 0 Year Avg. Sales Price (Thousands)
1990 149
1995 158
2000 207
What would be the approximate sales price for a home in 2020? 480, 600 ,807, 210
The approximate sales price for a home in 2020 would be 480
How to determine the approximate sales priceFrom the question, we have the following parameters that can be used in our computation:
Year Avg. Sales Price (Thousands)
1990 149
1995 158
2000 207
We can see that there is an upward trend as the year increases
However, the table does not follow a linear or an exponential pattern
From 2000 and 1990, the change in price is 58
Using this as a guide, we have
2020 = 207 + 58 * 2
2020 = 323
The closest to 323 in the option is 480
Hence, the sales price is 480
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A car costs £14000. Work out the price after an 8% discount.
The price is £12,880.
First, do 14000 x 0.08 = 1,120.
Next do 14,000 - 1,120 = 12,880.
So, the price is £12,880.
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Quadrilateral+ABCD+has+verticals+at+A(-3,-4)B(-1,-1)C(2,-2)D(3,-4).+Graph+quadrilateral+ABCD+and+it’s+image+after+180+counterclockwise+rotation+about+vertex D.
The coordinates of the image is A'(3, 4), B'(1, 1), C'(-2, 2) and D'(-3, 4).
What is Transformation?A point, line, or geometric figure can be transformed in one of four ways, each of which affects the shape and/or location of the object. Pre-Image refers to the object's initial shape, and Image, after transformation, refers to the object's ultimate shape and location.
Given:
A(-3, -4), B(-1, -1), C(2, -2) and D(3, -4).
In case the quadrilateral ABCD is rotated 180° counterclockwise about the origin, then according to the rule for the rotation of point (x, y) by 180° (x, y) changes into (-x, -y).
Then, the coordinates of the image is
A'(3, 4), B'(1, 1), C'(-2, 2) and D'(-3, 4).
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a speedboat traveling at a constant speed arrives at its distension in 35 minutes. if it traveled 70 miles, then what was the speedboat's speed?
this is due in 5 mins
Answer:
120 mph
Step-by-step explanation:
t = 35 min = (35 min)/(60 min/hr) = 0.583 hr
d = 70 mi
speed = d/t = (70 mi) / (0.583 hr) = 120 mph
An acorn grew 0.5% from its weight of 2.5 grams. How much did it grow?
what is the range of f?
The range of the function is -5 ≤ f(x) ≤ 5.
The correct option is C.
What is a function?A relation between a collection of inputs and outputs is known as a function. A function is a connection between inputs in which each input is connected to precisely one output. Each function has a range, co-domain, and domain.
A graph of function is given.
The range of the function is all the achievable values.
So, the range of the function is,
-5 ≤ f(x) ≤ 5.
Therefore, the range is -5 ≤ f(x) ≤ 5.
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Put it in slope intercept form
Answer:
y=1/2x-2
Step-by-step explanation:
Slope int. Form is y=mx+b.
Knowing this, we find the slope either using rise/run or or the slope formula. y2-y1/x2-x1
using rise/run, we rise up 1 unit and run over 2 units to the right.
So mx=1/2x.
Then finding the y-intercept we look at the y-axis and look for where the graph intersects the y-axis. In this case the y intercept is already plotted at (0,-2). So b=-2.
Put all of our information together and receive the equation y=1/2x-2.
-Hope this helped
or After sales tax, a $27 telephone costs $27.27. What is the sales tax percentage?
The sales tax on telephone is 1 percent.
What is the sales tax?Calculating the sales tax applied to a purchase is a matter of simply multiplying the tax rate by the purchase price using the equation sales tax = purchase price × sales tax rate. Adding the sales tax to the original purchase price gives the total price paid with tax.
Given that, after sales tax, a $27 telephone costs $27.27.
Here, sales tax =27.27-27
= 0.27
Now, tax rate is 0.27/27 ×100
= 1%
Therefore, the sales tax on telephone is 1 percent.
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Hey guy’s question 1/5 = 15/x so…. X = 3 am i right can sb verify
Answer:
x = 75
Step-by-step explanation:
Given the equation:
[tex]\displaystyle{\dfrac{1}{5} = \dfrac{15}{x}}[/tex]
Multiply both sides by 5x to clear off denominators:
[tex]\displaystyle{\dfrac{1}{5}\cdot 5x = \dfrac{15}{x} \cdot 5x}\\\\\displaystyle{1\cdot x = 15\cdot 5}\\\\\displaystyle{x=75}[/tex]
Therefore, x = 75
Simplify using the log properties then evaluate.
log2 5+ log2 6.4
[tex]\begin{array}{llll} \textit{logarithm of factors} \\\\ \log_a(xy)\implies \log_a(x)+\log_a(y) \end{array} \\\\\\ \begin{array}{llll} \textit{Logarithm Cancellation Rules} \\\\ \stackrel{\textit{we'll use this one}}{log_a a^x = x}\qquad \qquad a^{log_a x}=x \end{array} \\\\[-0.35em] ~\dotfill\\\\ \log_2(5)+\log_2(6.4)\implies \log_2( ~~(5)(6.4) ~~ )\implies \log_2(32) \\\\\\ \log_2(2^5)\implies \text{\LARGE 5}[/tex]
Need REAL ANSWER AND SOLUTION please so i can study it. Help me math experts
Answer:
B
Step-by-step explanation:
Should be B.
Derivative of 9X^2 is 18x because the exponent multiplied by the coefficient is 18 and the exponent minus 1 is just 1.
Derivative of 1 is 0 because derivative of any real number is 0
Derivative of y^2 is 2y dy/dx because derivative of y^2 is 2y since the exponent 2 times the coefficient 1 equals 1. And the exponent 2 minus 1 is simply 1.
BUT since it's respect to x, we have to add dy/dx right at the end of the 2y
50) A cashier has a total of 121 bills, made up of fives and tens. The total value of the money is $895. How many ten-dollar bills does the cashier have?
Answer:
89 Bills of 10$ and 1 of 5$
Step-by-step explanation:
Pretty simple division which gets you 89.5 and that decimal is just the one 5$
help PLSS brainliest I’ll give
The equations x² + 4x + 3 = 0 and x² -6x + 13 = 0 are equivalent to (x + 2)² = 1 and (x - 3)² = -4
What is an equation?An equation is an expression that shows the relationship between two or more numbers and variables. An equation can either be linear, quadratic, cubic and so on
The standard equation of a quadratic function is:
y = ax² + bx + c
1) Given that:
x² + 4x + 3 = 0
subtract 3 from both sides:
x² + 4x = -3
add to both sides the square of half the coefficient of x:
x² + 4x + 4 = -3 + 4
(x + 2)² = 1
2) Given that:
x² - 6x + 13 = 0
subtract 13 from both sides:
x² - 6x = -13
add to both sides the square of half the coefficient of x:
x² - 6x + 9 = -13 + 9
(x - 3)² = -4
The equations are (x + 2)² = 1 and (x - 3)² = -4
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during a 90 min play the main chararcter 80% of the time what amont of minutes was the main chararcter on stage
Answer:
72 mins
Step-by-step explanation:
90 x .8
72
The leader of two women's support groups is interested in the depressive levels
Answer:
Step-by-step explanation:
The mean depression level for the first group is μ₁ = 16.
The mean depression level for the second group is μ₂ = 12
The weighted mean is closer to 12 than to 16.
The calculated weighted mean for CES-D is 13.5
The calculated weighted mean for MAST is 17.25 ≈ 17.0 rounded to 17.
Calculating the weighted mean μ
μ= {where x1 =μ₁ and x2= μ₂ }
μ= 16×6 + 10×12/ 6+10
μ= 216/16
μ= 13.5
The first group has a mean score of μ₁= 18.
The second group has a mean score of μ₂ = 14
Calculating the weighted mean μ
{where x1 =μ₁ and x2= μ₂ ; w1= number of women in the first group and w2= number of women in the second group}
μ=
μ= 18×6 + 14×12/ 6+10
μ= 276/16
μ= 17.25≈ 17
The diagram shows the graph of y=2x+c. Where c is a constant find the value of K.
the answer to this question where is the is c+2x
is 1/6 equivalent to 2/8
Answer:
no. 2/8 is equivalent to 1/4 and not equal to 1/6