Answers
so plug in the numbers A= (3.14)(4.5)(4.5)= 63.62 is the total area
150*63.62=9543 9543/360=26.5
So the answer is 26.5 cm ^2
Related Questions
In spherical geometry, what is the term used for the shortest distance between two points?
Answers
The explanation of is shown below:
1. You have that ,by definition, the spherical geometry studies figures on the surface of the spheres.
2. And the termn known as "Geodesic" is define as the shortest distance between two points on the surface of a sphere or a curved surface.
What are the dimensions of a rectangle that has a perimeter of 26 in the area of 36?
Answers
What would “x” be ?
Thanks you
Answers
So x would equal to 40.37 degrees
Step-by-step explanation:
[tex]cos \: x = \frac{a}{h} \\ cos \: x = \frac{16}{21} = 0.76 \\ cos \: x = 40.36degrees[/tex]
Heather has to solve this system of equations using elimination. What should be her first step?
Answers
The elimination method is used for solving linear systems of equations.It is way of solving a linear system of equations.In the elimination method we either add or subtract the equations to get an equation in one variable.The main concept behind elimination method is to create terms with opposite coefficients because they cancel each other when added.
When the coefficients of one variable are opposites you add the equations to eliminate a variable and when the coefficients of one variable are equal you subtract the equations to eliminate a variable.
When Heather has to solve this system of equations using elimination her first step will be to make the coefficients of x or y the same so that one of the variable is eliminated on addition or subtraction of the equations.
The area of a rectangular knitted blanket is 14 x^2 - 17 x -6. What are the possible dimensions of the blanket? Use factoring.
Answers
(7x 2)(2x 3 ) That looks promising. We'll put the 3 with the 2x. That leaves us with the signs. We need 17 to be minus
(7x 2)(2x - 3) that gives you - 21 x So the 2 with the seven has to be plus.
(7x + 2)(2x - 3) should be the the factored answer.
7x + 2 = 0 has no meaning. Measurements cannot be minus.
2x - 3 = 0
2x = 3
x = 3/2
If there are choices, please list them. That's as far as is possible.
Suppose you have five books in your bookbag. three books are novels
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we know that
The probability on the first day is 3/5 since there are 3 novels out of 5 and when you take a book out at random, all of them have a equal chance of being picked. Since you returned the book to the bag, the next day too, we have the same probability.
Probability of a novel being grabbed both days is the product of the two probabilities-----> (3/5)*(3/5)----> 9/25
the answer is
9/25
What is the surface area of the cylinder in terms of pi? The diagram is not drawn to scale.
Answers
Surface Area = 2π(7)² + 2π(7)(15) = 308π in²²
Answer: 308π in²
The solution is, 308π in² is the surface area of the cylinder in terms of pi.
What is surface area?Surface area is the amount of space covering the outside of a three-dimensional shape. The surface area of a solid object is a measure of the total area that the surface of the object occupies.
here, we have,
from the given diagram , we get,
the cylinder has,
radius = r = 7
height = h = 15
we know that,
Surface Area = 2πr² + 2πrh
so, we get,
r = 7
h = 15
substituting the values, we get,
Surface Area
= 2π(7)² + 2π(7)(15)
= 308π in²²
Answer: 308π in²
Hence, The solution is, 308π in² is the surface area of the cylinder in terms of pi.
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Suppose that in a large company, 30% of the computers are infected by adware. if 6 computers are randomly selected and tested, what is the probability that 2 of the computers are infected by adware?
Answers
The expression 100 + 20m gives the volume of water in Eduardo’s pool (in liters) after Eduardo spends mmm minutes filling his pool. What is the volume of water in Eduardo’s pool after he fills it for 5.25 minutes?
Answers
Answer:
205 cubic units
Step-by-step explanation:
Given : The expression 100 + 20m gives the volume of water in Eduardo’s pool (in liters) after Eduardo spends m minutes filling his pool.
To Find: What is the volume of water in Eduardo’s pool after he fills it for 5.25 minutes?
Solution:
Expression: Volume of water in pool after m minutes= 100 + 20m
Volume of water in pool after m minutes = 100 + 20m
Where m is the number of minutes spent in filling pool.
Now we are supposed to find the volume of water in Eduardo’s pool after he fills it for 5.25 minutes
Substitute m = 5.25
Volume of water in pool after m minutes= 100 + 20(5.25)
=205
Thus the volume of water in Eduardo’s pool after he fills it for 5.25 minutes is 205 cubic units.
Tracy solved the system of equations by making a substitution for x in the second equation.
What equation did she get as a result of that substitution?
x = –2y – 2
2x + 3y = –6
–2y – 2 = –6
–2y + 1 = –6
–4y – 2 + 3y = –6
–4y – 4 + 3y = –6
Answers
2(-2y-2) +3y = -6
After eliminating parentheses, Tracy had
-4y -4 +3y = -6
The 4th selection is appropriate:
-4y - 4 + 3y = -6
The pyramid shown below has a square base, a height of 7, and a volume of 84. what is the length of the side of the base?
Answers
So we plug in the given information and solve. Let x = length and width since it's a square their measurements are the same.
84 = (x * x * 7) or 84 = 7x²
Divide both sides by 7 to isolate the squared variable.
x² = 12
Now square root both sides to isolate the variable
x = √12 which simplifies to x = 2√3
The measurements for the length and width of the base are 2√3 units or approximately 3.464 units.
The length of the side of the base is 6 units.
What is the volume of the pyramid?The volume of the pyramid is;
[tex]\rm Volume \ of \ pyramid=\dfrac{1}{3}\times height \times Base[/tex]
The pyramid shown below has a square base, a height of 7, and a volume of 84.
Substitute all the values in the formula
[tex]\rm Volume \ of \ pyramid=\dfrac{1}{3}\times height \times Base\\\\\rm84 =\dfrac{1}{3}\times height \times 7\\\\Height = \dfrac{84\times 3}{7}\\\\ Height = \dfrac{252}{7}\\\\Height =36[/tex]
The length of the side of the base is;
[tex]\rm Side\ length^2=height\\\\ Side\ length^2=36\\\\Side\ length^2=6^2\\\\Side\ length=6[/tex]
Hence, the length of the side of the base is 6 units.
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What is the value of x?
132√ cm
526√3 cm
262√ cm
263√ cm
Answers
ratio of short leg: long leg :hypo = a: a√3: 2a
So if hypo = 52 cm then short leg = 52/2 = 26 cm
The other right triangle on the left is 45 45 90 because it has 2 equal sides
ratio of leg: leg :hypo = a: a: a√2
the leg = 26 cm
so hypo x = 26√2
Answer
26√2 cm
[tex]\huge \boxed{\sf 26\sqrt{2}\ cm } \\\\\\\sf Using\ trigonometric\ functions \\\\\displaystyle cos \theta = \frac{adj}{hyp} \\\\cos(60)=\frac{adj}{52} \\\\adj=cos(60) \times 52=26 \\\\Using\ the\ Pythagorean\ theorem \\\\x=\sqrt{26^2+26^2} =26\sqrt{2}[/tex]
true, false, or open. Explain. 45/x-14=22
Answers
add 14 to both sides
45/x -14 +14 = 22 +14
45/x = 36
36 x = 45
x = 45/36 = 5/4 = 1.25
i’m sure this is easy but i'm gonna ask anyway
Answers
[tex]P = 4V^{ \frac{1}{3}} \\ P = 4(125)^{ \frac{1}{3}}[/tex]
A number to the power of 1/3 is the same as taking a cube root.
[tex]P = 4(125)^{ \frac{1}{3}} \\ P = 4(5) \\ P=20[/tex]
The perimeter of one face of the cube is 20m.
Find the quotient. Write your answer USING A DECIMAL and ROUNF TO THE NEAREST HUNDREDTH.
8,426÷82
Answers
How do you find the inverse of y=2x-3
Answers
Subtract 3 from each side
y - 3 = 2x
Divide through by 2
y/2 - 3/2 = x
or x = y/2 - 3/2
Now simply switch labels: x↔y
y = x/2 - 3/2
neil tried to simplify an expression step by step 5^-6/5^-4
Answers
The simplified form of the given expression is 1/25.
The given expression is [tex]\frac{5^{-6} }{5^{-4} }[/tex].
We need to simplify the given expression.
What are exponents and how do solve exponents questions?The exponent of a number shows how many times the number is multiplied by itself. The properties of exponents or laws of exponents are used to solve problems involving exponents. These properties are also considered major exponents rules to be followed while solving exponents.
Using quotient law [tex]\frac{a^{m} }{a^{n} } =a^{m-n}[/tex].
Now, [tex]\frac{5^{-6} }{5^{-4} }[/tex] can be written as [tex]\frac{5^{4} }{5^{6} }[/tex]
By using the quotient rule, we get [tex]\frac{5^{4} }{5^{6} }=5^{4-6}[/tex]
[tex]=5^{-2}=\frac{1}{5^{2}}[/tex]
=1/5×5=1/25
Therefore, the simplified form of the given expression is 1/25.
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HIGH AMOUNT OF POINTS! MATH QUESTION! IF YOU DON'T KNOW IT, DON'T ANSWER!
Answers
y=x^2-3
x-y=1
thus the plot will be as shown in the picture. The solutions are:
(-2,-1) and (2,1)
1.) Use the quadratic formula to solve the equation. If necessary, round to the nearest hundredth .x squared minus 21 x equals negative 4 x
2.) Which kind of function best models the data in the table? Use differences or ratios.
x y
0 1.7
1 6.8
2 27.2
3 108.8
4 435.2
3.) Solve the system of equations algebraically. Show all of your steps.
y equals x squared plus two x; y equals three x plus twenty
PLEASE HELP!
Answers
To solve the given quadratic equation, we simplified and factored it, yielding solutions x = 0 and x = 17. For the data in the table, an exponential function is suggested by the consistent ratio between y-values. Algebraically solving the system of equations results in two solutions: (5, 35) and (-4, 8).
Formula to Solve the Equation
To solve the equation x squared minus 21 x equals negative 4 x, you'll first want to rewrite it in standard form. Moving all the terms to one side gives us [tex]x^2 - 21x + 4x = 0[/tex], which simplifies to [tex]x^2 - 17x = 0[/tex]. To find the solutions, we can factor out an x, giving us x(x - 17) = 0. This yields two solutions: x = 0 and x = 17.
Model the Data in the Table
Looking at the data given, we see that each y-value seems to be a multiple of the previous y-value. This suggests an exponential function might be a better fit than a linear one. To confirm, you can divide each y-value by the previous y-value and observe if the ratios are consistent. Calculating the ratios between consecutive y-values in the table, we see that the ratio is consistently around 4, confirming that an exponential model is appropriate.
Solve the System of Equations Algebraically
To solve the system [tex]y = x^2 + 2x[/tex]and y = 3x + 20, set the right sides of the equations equal to each other:[tex]x^2 + 2x = 3x + 20[/tex]. Bringing all terms to one side gives us the quadratic equation[tex]x^2 - x - 20 = 0[/tex]. Factoring the quadratic equation we get (x - 5)(x + 4) = 0, which gives us two solutions for x: x = 5 or x = -4. Substituting these back into either original equation provides the related y-values, thus giving us two solutions for the system: (5, 35) and (-4, 8).
i need this ASAP
Why is it not wise to sell your house when house prices decline or level off
Answers
Answer:
Because in one way or another, you would lose money.
Step-by-step explanation:
Sometimes, it is a good idea to underprice a house when selling it, specially when there is a hot market to start a bidding war. If this is not the case, when the prices go down, it means that the seller must adjust his prices to the market; meaning that the lower the prices are, the lower the underpricing should be, so the seller would lose money.
You bought 2 pairs of pants at $28.99 each, and one shirt at $21.34. If the tax rate is 5%, what is the total cost of your purchase?
Show how you got the answer
Question 3 options:
$79.32
$58.98
$69.32
$83.29
Answers
28.99*2 + 21.34
Multiply:
79.32
Now we find the tax rate:
79.32 * 0.05 = 3.966 ( we can round up to 3.97)
Add tax and total:
79.32 + 3.97 = 83.29
The total price is $83.29
The total cost of purchase on 2 pants and 1 shirt is $76.986.
Given that, you bought 2 pairs of pants at $28.99 each, and one shirt at $21.34.
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.
Now,
The cost of 2 pairs of pants
= 2 ×28.99
= $57.98
Total cost of two pants and a shirt
= 21.34+51.98
= $73.32
Tax =5% of 73.32
= 5/100 ×73.32
= 0.05 ×73.32
= $3.666
Total cost of purchase =73.32+3.666
= $76.986
Therefore, the total cost of purchase on 2 pants and 1 shirt is $76.986.
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Bruce has 97 sports cards. 34 of them are football cards. Which equation can be used to find the number of sports cards y that are not football cards
Answers
Answer: 34 + y = 97
Step-by-step explanation:
According to the question,
Total number of sport cards = 97
In which some are foot ball cards and some are non football cards.
Let y be the number of sports cards.
Given, 34 cards are football cards.
Therefore, total number of cards = 34 + y
⇒ 34 + y = 97
Which is the equation that will use to find the number of non football cards.
To find the number of sports cards that are not football cards, you subtract the number of football cards from the total number of sports cards. The equation is y = 97 - 34.
To determine the number of sports cards that are not football cards, you need to subtract the number of football cards from the total number of sports cards.
Step-by-Step Explanation:
The total number of sports cards is 97.
The number of football cards is 34.
The number of sports cards that are not football cards can be found by subtracting the number of football cards from the total number of sports cards: y = 97 - 34.
Therefore, the equation y = 97 - 34 can be used to find the number of sports cards that are not football cards.
If f(x) = 4x and g(x) = 2x – 1, what is g(f(–2))?
A-17
B-13
C-8
D-5
Answers
so f(-2) = 4*-2 = -8
and
g((f(-2)) = g(-8) = -16-1 = -17
Its A
Katherine invested $140.she earned a simple interest of 4% per year on the initial investment. If no money was added or removed from the investment what was the amount of interst katherine received at the end of two years?
Answers
Interest for 2 years = $5.60 x 2 = $11.20
Total amount at the end of 2 years = $11.20 + $140 = $151.20
Answer: $151.20
The doorway into a room is 4 feet wide and 8 feet high. what is the length of the longest rectangular panel that can be taken through this doorway diagonally
Answers
Perhaps you want to know the diagonal length of the opening. The Pythagorean theorem tells you it is
√((4 ft)² +(8 ft)²) = 4√5 ft ≈ 8.944 ft
This is a Pythagorean theorem problem. You need only apply a^2 + b^2 = c^2 to get the answer.
Formula
a^2 + b^2 = c^2
Givens
a = 4
b = 8
Sub and solve
a^2 + b^2 = c^2
4^2 + 8^2 = c^2
16 + 64 = c^2
80 = c^2
c = sqrt(80)
c = sqrt(2 * 2 * 2 * 2 * 5) out 4 twos 2 can be taken outside the brackets.
c = 4*sqrt(5) is the longest piece that can be taken through the door.
c = 8 feet + 0.944 of a foot
c = 8 feet + 11.33 inches.
Suppose you want to build a rectangular sandbox where the width is 5 feet less than the length and the diagonal is 5 feet longer than the length. what are the dimensions of the sandbox?
Answers
W = L - 5 ←5 feet less than (reverse order - ) the length (L)
D = L + 5
These 3 lengths form a right triangle with D being the hypotenuse, c.
Using the Pythagorean Theorem, a² + b² = c²
L² + (L - 5)² = (L + 5)²
L² + L² - 10L + 25 = L² + 10L + 25
L² - 20L = 0
L = 0 (can't use this answer) or L = 20 (this is a usable answer)
Dimensions of the sandbox 20 ft by 15 ft
Length = 20 ft
Width = 15 ft
Diagonal = 25 ft
need help with algebra 2! but I need the work show
Answers
[tex] \sqrt{7x} \sqrt{x}- \sqrt{7x}*7 \sqrt{7} \\ \\ = \sqrt{7} \sqrt{ x^{2} }-7 \sqrt{x} \sqrt{ 7^{2} } \\ \\ =x \sqrt{7} -7*7 \sqrt{x} \\ \\ \\ =x \sqrt{7} -49 \sqrt{x} [/tex]
Bryant collects a set of 20 data representing the lengths of worms he found in the garden. The variance of the set of measurements is 36. What is the standard deviation from the mean? millimeters
Answers
Answer:
6 millimeters
Explanation:
The standard deviation is the square root of the variance.
Since the variance is 36, the standard deviation would be
√36 = 6
Answer:6
Step-by-step explanation:
angle 0 is in quadrant 1 with sin0 = 2/5. Use the Pythagorean identity, sin^2 0 + cos^2 0 = 1, to calculate the value of cos0 as a radical.
Answers
sin²x+cos²x=1
so
clear cos x
cos x=(+/-)√[1-sin²x]
in this problem
Angle 0 is in quadrant 1 -----> cos o and sin o are positive
sin o=2/5
cos x=√[1-(2/5)²]----> cos o=√[1-4/25]----> cos o=√[21/25]---> cos o=√21/5
the answer is
cos o=√21/5
A TV has a listed price of $ 899.99 before tax. If the sales tax rate is 7.25 % , find the total cost of the TV with sales tax included.