The angular speed of the turntable is = 4.7 rad/sec.
Calculation of angular speedAngular speed can be defined as the rate at which angular displacement changes with respect to time.
Speed can be defined as the distance traveled by an object at a particular time interval.
The rate of rotation of the turntable = 45 rotations per minute.
That is, the time taken to complete one rotation in seconds = 1/45 ×60sec = 1.34secs
This is taken to be the period of rotation (T)
Therefore, the angular speed is calculated using the formula, 2π/T
= 2×3.14/1.34 = 4.7 rad/sec.
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Aria paid $75,000 for her house. its property value increased by 2.2% per year. when aria sold her house after eleven years, how much was it worth, to the nearest hundred dollars?a.$133,700b.$95,400c.$95,300d.$93,100 please select the best answer from the choices providedabcd
Answer:
D
Step-by-step explanation:
Converting percent to decimal : 2.2/100 = 0.022
Finding 2.2$ of $75k : 75,000 x 0.022 = $1,650 (also the increase in one year)
Finding how much it was worth after 11 years :
(75,000 x 0.022) x 11 = $18,150 or 1,650 x 11 = $18,150
Now add the product to the regular amount to find out the answer:
75,000 + 18,150 = $93,150 (which is how much it increased after 11 years)
do synethtic wig curls only come out if you put heat on it Answer Asap for brainlist
Yes or no
Answer:
There is no definitive answer to this question since different wigs are made with different kinds of synthetic fibers. Some synthetic fibers are more resistant to heat than others, so it really depends on the specific wig. In general, however, it is generally not recommended to use heat on synthetic wigs, as it can damage the fibers.
Huilans age is three times Thomas age The sum of their ages is 76 what is Thomas age
Answer:
let x be thomas age
3x for huilans age since huilans age is 3 time thomas age
both of their ages add to 76
ie. x + 3x =76
solve for x
4x = 76
x = 76 ÷ 4
x = 19. thomas age
to get huilans age : take 19 × 3 = 57
Solve inequality
58 - 10xs 20 + 9x.
Answer:
x>=2 so B
Hope this helps :)
The junior class sold 75% of the raffle tickets. They started with 100 raffle tickets.
How many tickets have been sold?
Answer:
75
Step-by-step explanation:
Since they sold 75% of the raffle tickets and the total is 100 raffle tickets, you simply need to find 75% of 100. To find x% of a, you simply convert x% to a decimal by dividing by 100 and then multiplying it by a. So the general formula to find x% of a would be: [tex]a*\frac{x}{100}[/tex]. In this case a=100, and x=75. So you have the equation: [tex]100*\frac{75}{100} = \frac{100 * 75}{100}=\frac{75}{1} = 75[/tex]
Answer: 75 tickets
Step-by-step explanation:
- percentages are out of 100, they are a rate, number, or amount in each hundred
- for example, (10/100) x 100 (because it’s out of 100) = 10%
- or it could be (6/40) x 100 (because it’s out of 100) = 15%
- so because they started with 100 tickets, it’s just (75/100) x 100 =75
hope this helps :)
Identify the algebraic expression for the following: the quotient of 12 and a number y increased by 7
The algebraic expression for the given word problem is 12/y + 7
Writing an expressionFrom the question, we are to write the algebraic expression for the given word problem
The given word problem is
"the quotient of 12 and a number y increased by 7"
First,
"the quotient of 12 and a number y" can be expressed as
12/y
Then,
"the quotient of 12 and a number y increased by 7" becomes
12/y + 7
Hence, the algebraic expression for the given word problem is 12/y + 7
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The original price of a mountain bike was reduced by $125 . if p= the mountain bike's original price in dollars, which algebraic expression represents the reduced price?
The algebraic expression that represents the reduced price is p - 125
How to determine the reduced price?The reduction is given as:
Reduction = $125
The original price is given as:
Original = P
The reduced price is calculated as:
Reduced price = original - reduction
This gives
Reduced price = p - 125
Hence, the algebraic expression that represents the reduced price is p - 125
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Emma read the statement “the quotient of six and a number, x, is the same as negative two times the difference of x and 4.5.” She translated it as shown below. 6 x = negative 2 x minus 4.5 What errors did Emma make? Select two options. She should have used division to represent the quotient of six and x. She should not have included an equal sign. She should have used parentheses to show that Negative 2 is multiplied by (x minus 4.5). She should have subtracted the difference (x minus 4.5) from Negative 2. She should have used parentheses to show that Negative 2 is multiplied by (4.5 minus x).
The errors Emma made are
She should have used division to represent the quotient of six and xShe should have used parentheses to show that - 2 is multiplied by (x - 4.5)Writing an expression as an equationFrom the question, we are to determine the errors that Emma made
The given statement is
"The quotient of six and a number, x, is the same as negative two times the difference of x and 4.5"
"The quotient of six and a number, x", can be expressed as
6/x
"Two times the difference of x and 4.5", can be expressed as
2(x - 4.5)
Hence, the errors Emma made are
She should have used division to represent the quotient of six and xShe should have used parentheses to show that - 2 is multiplied by (x - 4.5)Learn more on Writing an expression as an equation here: https://brainly.com/question/13155862
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Find the slope of the line that contains the points:
(-4, 3) and (4, 9)
a) 3/4
b) -3/4
c) 4/3
d) -4/3
Step-by-step explanation:
ATTACHED IS THE SOLUTION!!!Answer:
The answer would be A. 3/4
Step-by-step explanation:
To find the slope, you divide the difference of the y-coordinates of 2 points on a line by the difference of the x-coordinates of those same 2 points.
(05.05 HC) Figure ABCD has vertices A(-3, 2), B(2, 2), C(2, -4), and D(-3, -2). What is the area of Figure ABCD?
Answer:
I don't know how to answer this, sorry!
Step-by-step explanation:
.
Which of the following is the most profitable investment for a candy shop that earns $1 revenue per pound of candy? (5 points) Group of answer choices Worker at $10 per hour, producing eight pounds of candy per hour Worker at $12 per hour, producing 16 pounds of candy per hour Machine with $5 per hour operating cost, producing 10 pounds of candy per hour Machine with $8 per hour operating cost, producing 14 pounds of candy per hour
Then the most profitable investment is the first machine (third option) because for each dollar, it produces 2 pounds of candy.
Which of the following is the most profitable investment?The first option is a worker that costs $10 per hour and produces 8lb, then this worker gives:
8lb/$10= 0.8 pounds per dollar.
The second worker costs $12 per hour, and produces 16lb per hour, so this worker gives:
16lb/$12 = 1.33 pounds per dollar.
The third option is a machine that cost $5 per hour and produces 10lb per hour, then:
10lb/$5 = 2 pound per dollar.
The last option costs $8 per hour, and produces 14 pounds per hour, then:
14lb/$8 = 1.75 pounds per dollar.
Then the most profitable investment is the first machine (third option) because for each dollar, it produces 2 pounds of candy.
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+
120
A. Right
B. Obtuse
C. Acute
D. Equilateral
E. Scalene
OF. Isosceles
Answer:
See below
Step-by-step explanation:
Isosceles because two sides are same length
and
Obtuse because there is an interior angle greater than 90 °
If an object moves along the y-axis (marked in feet) so that it’s position at time X (in seconds) is given by f(x) = 108x -12x^2 , find the following:
The velocity equation is:
[tex]v(x) = 108 - 24x[/tex]
Such that:
[tex]v(0) = 108 ft/s\\v(2) = 60ft/s\\[/tex]
And the velocity is zero for x = 4.5
How to find the velocity equation?
We know that the position equation is:
[tex]f(x) = 108*x - 12*x^2[/tex]
To get the velocity, we need to differentiate with respect to x, so we get:
[tex]v(x) = \frac{df(x)}{dx} = 108 - 2*12*x = 108 - 24*x[/tex]
Now we want to get the velocity for x = 0 and x = 2, we will get:
[tex]v(0) = 108 - 24*0 = 108\\\\v(2) = 108 - 24*2 = 60[/tex]
Then, when x = 0, the velocity is 108 ft/s, when x = 2 the velocity is 60 ft/2.
Finally, we need to solve:
[tex]v(x) = 108 - 24*x = 0\\\\x = 108/24 = 4.5[/tex]
The velocity is zero when x = 4.5
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When you brush your wig will all the hair come off the wig completely or will it still be the same in a year
Answer:
no
Step-by-step explanation:
A chocolate bar measures 40 mm wide, 80 mm long, and 5 and 1 over 2 mm high. Will’s Wrapping Company is making a wrapper to cover the chocolate bar. Use the correct net and determine how much paper will be needed to make the wrapper.
Answer:
7720 mm²
Step-by-step explanation:
area = 2 × 80 mm × 40 mm + 2 × 80 mm × 5.5 mm + 2 × 40 mm × 5.5 mm
area = 7720 mm²
The question is down below 30 points
also I home school and have permission to post this question
The ratios for the surface area, volume and width respectively are:
Ratio of SA = 9:196.Ratio of V = 27:2,744.Ratio of W = 3:14.What is ratio?Ratio can be defined as a mathematical expression that's used to denote the proportion of two (2) or more quantities with respect to one another and the total quantities.
In this exercise, we are given the scale factor for this canoe is 3:14. Thus, the ratio of the surface area of the canoe model to the surface area of the original model would squared as follows:
Ratio of SA = 3²/14²
Ratio of SA = 9/196
Ratio of SA = 9:196.
For the volume, we would take the cube:
Ratio of V = 3³/14³
Ratio of V = 27/2,744
Ratio of V = 27:2,744.
For the width, we have:
Ratio of W = 3/14
Ratio of W = 3:14.
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Question 12
You are negotiating to make a 7-year loan of $20,000 to Breck Inc. To repay you, Breck will pay $2,500 at the end of Year 1, $5,000 at
the end of Year 2, and $7,500 at the end of Year 3, plus a fixed but currently unspecified cash flow, X, at the end of each year from
Year 4 through Year 7. Breck is essentially riskless, so you are confident the payments will be made. You regard 8% as an
appropriate rate of return on a low risk but illiquid 7-year loan. What cash flow must the investment provide at the end of each of
the final 4 years, that is, what is X?
(A) $2,520.02
B) $2,831.49
$3,369.47
$2,491.71
0.5 Points
E $2,661.60
The required x = $2,831.49. Option B) is correct.
7-year loan of $20,000 to Breck Inc. To repay you, Breck will pay $2,500 at the end of Year 1, $5,000 at the end of Year 2, and $7,500 at the end of Year 3, plus a fixed but currently unspecified cash flow, X, at the end of each year from Year 4 through Year 7.
What is invesment?When some apply there money on something so that he can get higher value in returns of his money.
for the final 4 years
20000=2500/1.08+5000/(1.08^2)+7500/(1.08^3)+x/(1.08^4)+x/(1.08^5)+x/(1.08^6)+x/(1.08^7)
x = $2,831.49
Thus the required value of x = $2,831.49.
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Write the equation 2x + 4y = 12 in slope intercept form. Show your work.
Answer:
First we have to find the value of x;
then we have to find the value of y;
Step-by-step explanation:
here,
2x= 12
x = 12\2
x = 6
now,
4y = 12
y = 12\4
y = 3
° the value of x is 6
° ° the value of y is 3
if anyone knows how to answer this do so please
Answer:
b = 5.3
A = 48.6
B = 41.4
Step-by-step explanation:
Attached is the Pics contain the Pythagoras Theorem and Trigonometric Identities.
So for our Right-Angled Triangle we have from Pythagoras Identity that
[tex]a^{2} +b^{2} =c^{2}[/tex] ,, Then [tex]b^{2} =c^{2} -a^{2}[/tex] where a=6 , c=8
by substituting,
[tex]b^2=8^2-6^2=28\\ b=\sqrt{28} =2\sqrt{7}=5.3[/tex]
Now to find A , we will use the Trigonometric Identities
Since [tex]sin(A)=\frac{Opposite}{Hypotenuse}=\frac{a}{c} =\frac{6}{8}=\frac{3}{4} \\[/tex]
[tex]A=sin^{-1} (\frac{3}{4} )=48.6\\[/tex]
Since in any Triangle A+B+C=180
Then B=180-A-C=180-48.6-90=41.4
In each part (a)-(d) below, some additional assumptions about the
picture are given. In each problem, determine whether the given
assumptions are enough to prove that the two triangles are similar; and
if so, what the correct correspondence of vertices is. If the two triangles
must be similar, prove this result by describing a sequence of similarity
transformations that maps one triangle to the other. If not, explain why
not.
a. The lengths AX and XD satisfy the equation 2AX = 3XD.
AX
b. The lengths AX, BX, CX, and DX satisfy the equation A
c. Lines AB and CD are parallel.
d. Angle XAB is congruent to angle XCD.
=
DX
CX
In the triangle, the fact that wee are given 2AX = 3XD isn't enough to prove similarity.
How to explain the triangle?a. In the question, we are given 2AX = 3XD. An arbitrary triangle AXB can be drawn where one extends AX and choose a point D on the extended line in order for 2AX = 3XD. Also, extend BX and choose a point C on the line so that 2BX = XC. Even though they both satisfy the condition, they're not similar.
b. We are given that AX/BX = DX/CX. When this is rearranged, we'll have AX/DX = BX/CX. In this case, let AX/DX = k. DX and AX will align upon rotation of 180°. The triangle can then be dilated by a factor of k. This brings about the mapping of triangle DXC to AXB. Therefore, the original triangle DXC is similar to AXB.
c. Lines AB and CD are parallel. Here, the dilation moves line CD onto line AB. Here, since the dilation moves D to a point on ray XA, D must move to A. Therefore, the rotation of triangle DXC is similar to AXB. Therefore, DXC is similar to AXB.
d. Here, angle XAB is congruent to angle XCD. This shows similarity and in this case, XCD is similar to XAB.
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A gas can hold 10 litters of gas.
How many could we fill 7 litters of gas?
Answer:
a gas can hold 7×10=70 litters of gas
Select the procedure that can be used to show the converse of the Pythagorean theorem using side lengths chosen from 3 feet, 4 feet, 5 feet, and 6 feet.
A. Knowing that 32 + 42 = 52, draw the 3-foot side and the 4-foot side with a right angle between them. The 5-foot side will fit to form a right triangle.
B. Knowing that 32 + 52 ≠ 62, draw the 3-foot side and the 5-foot side with a right angle between them. The 6-foot side will fit to form a right triangle.
C. Knowing that 32 + 42 = 52, draw any two of the sides with a right angle between them. The third side will fit to form a right triangle.
D. Knowing that 42 + 52 < 62, draw the 4-foot side and the 5-foot side with a right angle between them. The 6-foot side will fit to form a right triangle.
Using Pythagoras theorem, we know that 3² + 4² = 5², draw the 3-foot side and the 4-foot side with a right angle between them. The 5-foot side will fit to form a right triangle
How to use Pythagoras theorem to prove a right triangle?The Pythagoras theorem states that the sum of two squares equals the squared of the longest side.
Therefore,
c²= a²+ b²
where
c = hypotenuse sidea and b are the other legs.Therefore,
3² + 4² = 5²
Hence,
Knowing that 3² + 4² = 5², draw the 3-foot side and the 4-foot side with a right angle between them. The 5-foot side will fit to form a right triangle
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I have redone this one assignment like 5 times and I keep getting it wrong help
Keisha borrowed money from a bank to buy a fishing boat.
She took out a personal, amortized loan for $19,500, at an interest rate of 4.75%, with monthly payments for a term of 5 years.
(a) Find Keisha's monthly payment.
(b) If Keisha pays the monthly payment each month for the full term,
find her total amount to repay the loan.
$0
(c) If Keisha pays the monthly payment each month for the full term,
find the total amount of interest she will pay.
$0
Answer:
Your $19,513 loan has 60 monthly payments of $366.00 at 4.75%.
If you make all of your payments on this loan, and do not prepay any of the principal, the total interest for this loan is $2,447.26.
Step-by-step explanation:Loan Summary
Total payments $21,960.26
Total interest paid $2,447.26
Loan amount $19,513
Monthly payment $366.00
Interest rate 4.75%
Term 60 monthly payments
The step function f(x) is graphed. -54-3 -2 -1 4 3 EXO 4 4 y 1 CHELLEREN 2 3 What is the value of f(0)? O -2 O -1 0 0 1
Answer: -2
Step-by-step explanation:
When x = 0, y = -2.
So, f(0) = -2.
Use the trigonometric ratios sine, cosine, and tangent to answer the following questions
Answer:
Step-by-step explanation:
A home cleaning service takes more time to clean larger spaces. The table shows the number of minutes it takes for the service to clean a certain number of square feet within a home. Square Feet and Cleaning Time Number of Square Feet, x 50 80 100 150 Time in Minutes, y 20 32 40 60 Based on the table, how many minutes would it take for the service to clean 200 square feet? 20 minutes 80 minutes 125 minutes 400 minutes
The time required to clean 200 square feet will be 80 minutes. Option B is correct.
What is the surface area?The total land area of all the faces of a three-dimensional object is its surface area. When we wish to wrap something in real life, we employ the notion of surface areas of distinct things.
Let x be the cleaning time for the 200 square feet area;
From the table, it is observed that for a 1 sq. foot area the time needed to clean will be 0.4 minutes.
1 square feet = 0.4 minute
200 square feet = 200 × 0.4
200 square feet = 80 minute
The time required to clean 200 square feet will be 80 minutes.
Hence, option B is correct.
The table is attached in the attachment.
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Pls help! I need to finish quickly.
The inverse of the function f(x) = 2x + 5 is; f⁻¹(x) = (x - 5)/2
How to find the Inverse of a Function?An inverse function in mathematics is function which reverses the another function.
We want to find the inverse of the function; f(x) = 2x + 5
Thus;
Step 1; y = 2x + 5
Step 2; Subtract 5 from both sides to get;
y - 5 = 2x
Step 3; Since we want to find the inverse of f(x), then we now have;
x - 5 = 2y
Step 4: Divide both sides by 2 to get;
(x - 5)/2 = y
Step 5; Thus, we have;
f⁻¹(x) = (x - 5)/2
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Consider triangle ABC with the measure of an angle B = 60ﾟ and sidelinks a equal 4 &c equal 5 what option listed is an expression that is equivalent to the length of side B
The law of cosine helps us to know the third side of a triangle when two sides of the triangle are already known the angle opposite to the third side is given. The correct option is B.
What is the Law of Cosine?The law of cosine helps us to know the third side of a triangle when two sides of the triangle are already known the angle opposite to the third side is given. It is given by the formula,
[tex]c =\sqrt{a^2 + b^2 -2ab\cdot Cos\theta}[/tex]
where
c is the third side of the triangle
a and b are the other two sides of the triangle,
and θ is the angle opposite to the third side, therefore, opposite to side c.
The length of the sidelink b using the cosine rule can be written as,
[tex]b = \sqrt{a^2+c^2-2ac\cos(\angle B)}\\\\b = \sqrt{4^2+5^2 - 2(4)(5)(\cos 60^o)}\\\\b = \sqrt{16+25-20}[/tex]
Hence, the correct option is B.
The complete question is:
Consider ABC with the measure of angle B equal to 60 degrees, and side lengths a=4 and c=5. Which option lists an expression that is equivalent to the length of side b?
Options are given in the image below.
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Please I need help with this 2 calc questionssss. Thank you
Question 14
As we approaching from the negative side, [tex]|x-3|=3-x[/tex].
So, we have [tex]\lim_{x \to 3^{-}}=\frac{3-x}{x-3}=\frac{-(x-3)}{x-3}=\boxed{-1}[/tex]
and thus the limit exists at x=3.
Question 15
For the top part of the function, [tex](9-9)^{2}=0[/tex]
For the bottom part of the function, [tex]9-9=0[/tex]
As both one-sided limits are equal, L = 0, and thus the limit exists at x=9.