The number of turns the wheel makes is 1.93 ≈ 2.
What is Turns?
This is referred to as a cycle. It is a unit of plane angle measurement that is equivalent to 2π radians, 360 degrees, or 400 gradians.
formular for calculating Turns:
Turns = Lenght
Circumference
Circumference of a circle, C= πD
Where,
Diameter=D
π =22/7
Calculating Circumference;
C= 22 * 66
7
=207.4
From the question:
D= 66cm
L =400m
Calculating Turns:
Turns = Lenght
Circumference
= 400m
207.4
Turns =1.93
Turns =1.93≈ 2
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CAN SOMEONE TELL ME IF THE CORRECT ANSWER TO THIS IS 16??
E and M are shown as congruent. This could be an Isosceles Triangle, so let's check. In an isosceles triangle, there are two congruent angles adjacent to the non-congruent side, and two congruent sides to the non-congruent angle. This angle is the apex. The apex of this triangle is adjacent to two congruent sides, however it is congruent to angle M, and thus this cannot be an isosceles triangle. That means this is an equilateral triangle, so all sides are congruent. So: LM = 16
Rounded to the nearest tenth, what is the perimeter of the triangle?
60°
5 cm
30°
Answer:
11.0 cm
Step-by-step explanation:
Answer:
11.8 cm
Step-by-step explanation:
2.5 + 5 + 2.5√3 = 7.5 + 2.5√3 = 11.8 cm
A toy rocket is shot vertically into the air from a launching pad 7 feet above the ground with an initial velocity of 72 feet per second. The height h, in feet, of the rocket above the ground at t seconds after launch is given by the function h(t)=-16 t²+72 t+7. How long will it take the rocket to reach its maximum height? What is the maximum height?
The rocket reaches its maximum height at ? second(s) after launch.
(Simplify your answer.)
The maximum height reached by the object is ? feet.
(Simplify your answer.)
The rocket reaches its maximum height at 2.25 second(s) after launch
The maximum height reached by the object is 88 feet.
Time to reach the maximum heightThe function is given as
h(t) = -16t² + 72t + 7
Differentiate the above function
So, we have the following representation
h'(t) = -32t + 72
Set to 0
-32t + 72 = 0
So, we have
32t = 72
Divide by 32
t = 2.25
Hence, the time is 2.25 seconds
The maximum heightIn (a), we have
t = 2.25
Substitute t = 2.25 in h(t) = -16t² + 72t + 7
h(2.25) = -16(2.25)² + 72(2.25) + 7
Evaluate
h(2.25) = 88
Hence, the maximum height is 88 feet
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-11x-7y= -56
Slope intercept form
Answer:
11/56 i think
Step-by-step explanation:
The slope of the line is m = - 11/7
And the y-intercept is b = 8
Find the slope and the y-intercept.
Step 1 – Transform the equation.
-11x - 7y = -56
To get a slope-intercept form, we need to isolate the variable y on the left-hand side of the equation.
First, we need to eliminate variable x from the left-hand side.
To eliminate the term with x, we'll add it to both sides of the equation. Remember to always perform the same operation on both sides to keep the equality true!
-11x – 7y + 11x = -56 + 11x
Now, let's add terms on the left-hand side. Keep in mind that two opposites add up to zero, so we can just remove it.
-7y = -56 + 11x
Since the variable x should be the firs on the righ-hand side in slope-intercept form, let's make it that way. Use the commutative property to reorder the terms.
-7y = 11x – 56
We're almost there! We just have to eliminate -7 from the left-hand side. To do that, let's divide both sides of the equation by -7.
(-7y)/(-7) = (11x - 56)/(-7)
Simplify the left-hand side. Each number divided by itself equals 1, so we are left with y.
y = (11x - 56)/(-7)
Next, separate the fraction on the righ-hand side into two fractions.
y = 11x/(-7) - 56/(-7)
Simplify the fraction on the right-hand side of the equation.
y = - 11x/7 + 56/7
y = - 11x/7 + 8
Finally, write the expression with x as a product.
y = - 11/7 x + 8
That's it! We've got the slope-intercept form of the equation.
Step 2 – Identify the slope.
Since the equation is written in slope-intercept form, y = m x + b, identify the slope of the lines as the coefficient next to the variable x.
y = - 11/7 x + 8
m = - 11/7
Step 3 – Identify the y-intercept.
Identify the y-intercept of the line as the constant term.
y = - 11/7 x + 8
m = - 11/7
b = 8
The slope of the line is m = - 11/7
And the y-intercept is b = 8
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Which equation would have real zero(s) corresponding to the x-intercept(s) of the graph below?
A. y=-2² +4
B. y= 2²
C. y=log₂ (x+2)+1
D. y= log₂ (x+2)
A) Y = [tex]-2^{x}+4[/tex] is the equation which have real zero(s) corresponding to the x-intercept(s) of the graph below
What does a mathematical coordinate mean?
a set of numbers used to represent the horizontal and vertical divisions of the positions of two reference axes in a coordinate plane. often shown as the combination of x-values and y-values (x,y).
What is the Slope Intercept Form Equation?
The slope intercept equation can be used to find the general equation of a straight line using its slope and the point of its y-axis junction. The equation in slope intercept form is Y = mx + b.
You must enter y=0 for the x intercept.
in equation A we can see that at x=2 , y=0
so hence answer is option A) Y =[tex]-2^{x}+4\\[/tex]
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V=πh^(r-h/3) make r the subject formula
If we make r the subject formula, then the formula would be r = log_h(V/π) + (h/3)
In this question, we have been given a formula V=πh^(r-h/3)
We need to make r the subject formula
This means we need to rewrite formula for r.
V = πh^(r-h/3)
h^(r-h/3) = V/ π
r - h/3 = log_h(V/π)
r = log_h(V/π) + (h/3)
Therefore, if we make r the subject formula, then the formula would be r = log_h(V/π) + (h/3)
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Point A is on the coordinate plane and is represented by the ordered pair (3, 2). The point is moved five units down and labeled as point B.
Which of the following ordered pairs represents Point B?
( 3,7 ) will be point when its moved 5 units down on coordinate plane .
What is the short definition of a coordinate plane?
Two number lines combine to produce the coordinate plane, a two-dimensional surface. The x-axis is the name given to one horizontal number line. The y-axis is the name given to the other number line, which is vertical. At a place known as the origin, the two axes collide. To graph points, lines, and other things, we can utilize the coordinate plane.( 3,2) is the point .
when the point is moved 5 units down
then the point will be = ( 3, 7 )
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Solve 10x+16 ≥ 6x+ 20.
A. xz1
B. x < 1
C. x > 9
D. x≤9
Answer:
x ≥ 1
Step-by-step explanation:
Solving inequalities are essentially like solving equations where the main focus is getting the variable, x in this case, on one side and a constant on the other using inverse operations.
10x+16 ≥ 6x+20
==> subtract 16 from both sides
10x ≥ 6x + 4
==> subtract 6x from both sides
4x ≥ 4
==> divide both sides by 4
x ≥ 1
So the answer would be A
Also an important note for future references is when you divide one of the sides by a negative number you must flip the inequality sign.
E.g. -4x>8
We would divide both sides by -4 and because we divide by a negative number we must flip the inequality signs
This would result to x<-2
What is the mean in hypothesis testing?
Answer:
t = (x - μ) / SE. where x is the sample mean, μ is the hypothesized population mean in the null hypothesis, and SE is the standard error. P-value. The P-value is the probability of observing a sample statistic as extreme as the test statistic.
Step-by-step explanation:
May I have Brainliest please? My next rank will be the highest one: A GENIUS! Please help me on this journey to become top of the ranks! I only need 15 more brainliest to become a genius! I would really appreciate it, and it would make my day! Thank you so much, and have a wonderful rest of your day!
The mean in hypothesis testing is the parent population from which the samples are drawn.
What is hypothesis testing?In statistics, hypothesis testing is the process by which an analyst tests an assumption about a population parameter. The analyst's methodology is determined by the nature of the data and the purpose of the analysis. Using sample data, hypothesis testing is used to assess the plausibility of a hypothesis.
Hypothesis testing is a type of statistical inference that employs sample data to draw conclusions about a population parameter or probability distribution. First, an educated guess is made about the parameter or distribution.
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09.
If X = 12, Y = ¹/3, and T = 6
Evaluate XY - YT.
Answer:
XY - YT = 2
Step-by-step explanation:
substitute the given values into the expression
XY - YT
= (12 × [tex]\frac{1}{3}[/tex] ) - ([tex]\frac{1}{3}[/tex] × 6 )
= 4 - 2
= 2
PLEASE HELP ME THIS IS OVER DO
The function rule for the line is f(x) = [tex]\frac{2}{3}x[/tex] - 2
What is a linear function?A linear equation is an equation in which the highest power of the variable is always 1. It is also known as a one-degree equation. The standard form of a linear equation in one variable is of the form Ax + B = 0. Here, x is a variable, A is a coefficient and B is constant. The standard form of a linear equation in two variables is of the form Ax + By = C. Here, x and y are variables, A and B are coefficients and C is a constant.
The line cuts the x and y axis at (3,0) and (0, -2)
standard form of equation of line: y = mx + c
when x =3, y = 0
substitute these values into the equation
0 = 3m + c
c = -3m----------------1
when x = 0, y = -2
substitute these values into the equation, we have
-2 = 0(m) + c
c = -2
substitute the value of c in equation 1 to find m
-2 = -3m
m = 2/3
Substitute the values of m and c into the standard equation,
y = [tex]\frac{2}{3}x[/tex] - 2
In conclusion, the function rule for the given line is y = [tex]\frac{2}{3}x[/tex] - 2
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At the beginning of the year 2005, a person invests some amount in a bank. At the beginning of 2010, the accumulated interest was 10000 and at the beginning of 2015, the accumulated interest became 25000. The interest rate is compounded annually and the annual interest rate is fixed. What is the principal amount
Answer:23000
Step-by-step explanation:
The principal amount is ₹20000.
What is the compound interest?Compound interest is the interest on savings calculated on both the initial principal and the accumulated interest from previous periods.
The formula used to find the compound interest = [tex]A=P(1+\frac{r}{100})^{nt}[/tex]
Let the money at beginning of the year 2005, a person invests in a bank be x.
At the beginning of 2010, the accumulated interest was ₹10000.
Now, x(1+r/100)⁵=x+10000 ------(I)
Let x(1+r/100)⁵=A
At the beginning of 2015, the accumulated interest became ₹25000.
So, x(1+r/100)¹⁰=x+25000 ------(II)
From the equation (I),
x(A-1)=10000 ------(III)
From equation (II), we get
x×A²=x+25000
x(A²-1)=25000 ------(IV)
From equation (III) and (IV), we get
10000(A+1)=25000
A=1.5
Put A=1.5 in equation (III), we get
0.5x=10000
x=10000/0.5
x=₹20000
Therefore, the principal amount is ₹20000.
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Which are correct representations of the inequality –3(2x – 5) < 5(2 – x)? Select two options. x < 5 –6x – 5 < 10 – x –6x + 15 < 10 – 5x A number line from negative 3 to 3 in increments of 1. An open circle is at 5 and a bold line starts at 5 and is pointing to the right. A number line from negative 3 to 3 in increments of 1. An open circle is at negative 5 and a bold line starts at negative 5 and is pointing to the left.
An open circle at 5 and a bold line starting at 5 and pointing to the right (>) is the correct representations of the inequality
How to identify the correct representations of the inequality?An inequality compares two values, showing if one is less than, greater than, or simply not equal to another value e.g 5 < 6, x ≥ 2, etc.
Given: the inequality –3(2x – 5) < 5(2 – x)
First, we have to solve for x in the inequality
–3(2x – 5) < 5(2 – x)
Clear the parenthesis:
-6x + 15 < 10 - 5x
Collect like terms:
-6x + 5x < 10 - 15
-x < -5
Divide both sides by -1:
x > 5 ( Note: Dividing both sides by -1 will change the < to > )
This is what will determine our answer
Since our answer is x > 5. An open circle will be at 5 and a bold line starts at 5 and is pointing to the right (>)
Therefore, the correct representations of the inequality is an open circle is at 5 and a bold line starts at 5 and is pointing to the right
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A coin 22 mm in diameter contains 66 mm³ of metal. How thick is the coin? [Take
[tex]\pi[/tex]
=3.142]
Answer:
3000/17281 mm
Step-by-step explanation:
We can model this as a cylinder with a volume of 66 mm³, a radius of 11 mm, and an unknown height [tex]h[/tex] mm.
Using the formula for the volume of a cylinder,
[tex]V=\pi r^2 h \\ \\ 66=11^2 \pi h \\ \\ h=\frac{66}{121\pi} \\ \\ h=\frac{6}{11\pi} \\ \\ h \approx \frac{6}{11(3.142)} \\ \\ h \approx 3000/17281[/tex]
Answer:
0.17 (2d.p)
Step-by-step explanation:
volume of cylinder= πr^2Xh
22/2=11 which is radius
11^2=121
121X3.142=380.182
380.182Xh=66
h=66/380.182=0.1736010648
What is the range of y = -3x + 1 for the domain of {2,8}?
Responses
-5
-23
2
8
Translate the word problem into an equation or inequality. *DONT SOLVE THE PROBLEM*. What is Half a number less than 3 is at most 5 as an equation or inequality.
Answer:
3 -n/2 ≤ 5
Step-by-step explanation:
You want a math expression that means "half a number less than 3 is at most 5."
TranslationWe can let "n" represent "a number." Then "half a number" is (1/2)n or n/2.
That amount "less than 3" means it is subtracted from 3:
3 -n/2 . . . . . . half a number less than 3
The wording "is at most" means "is less than or equal to." In symbols, the words mean ...
3 -n/2 ≤ 5
__
Additional comment
Often 'x' is used to represent an unknown quantity. We like 'n' for "a number" because it is mnemonic, and because the numbers of interest are often integers or natural numbers from the set represented by ℕ.
English expressions of math relations are often ambiguous. In this case, we're not completely sure that the intention is not "half (a number less than 3)", which would be (3 -n)/2. Usually, we fall back on the Order of Operations, which requires that multiplication be done before addition. That is "half a number" must be computed before "less than 3" is evaluated, hence 3 -n/2.
Please help! This unit is stressing me out!! I will give you brainliest answer!
Sumalee won 40 super bouncy balls playing
horseshoes at her school's game night.
Later, she
gave two to each of her friends.
She only has 8 remaining. How many
friends does she have?
If she gave two to each of her friends. She only has 8 remaining balls. so she has a total of 16 friends.
What is division in mathematics?
In mathematics, division is the process of dividing a number into equal parts and determining how many equal parts can be made. For instance, dividing 15 by 3 means dividing 15 into three equal groups of five. The symbol " or sometimes '/' represents division.
Sumalee won a total of 40 super bouncy balls.
then she gave two balls to each of her friends.
So she can distribute the balls to = 40/2
= 20 friends.
But after the distribution, she remained with 8 balls.
Now the number of balls will be = 40 - 8 = 32 balls.
and she can distribute 32 balls to = 32/2
= 16 friends.
Hence, If she gave two to each of her friends. She only has 8 remaining balls. so she has a total of 16 friends.
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The sum of two binomials is 5z + 6. If one binomial
is 3z - 4, what is the other binomial?
Answer: 2z+2
Step-by-step explanation:
Imagine that your school planted two trees when it was first opened. One tree, a ficus, was 6 feet 6 feet tall when it. was planted and has grown 1.5 feet 1.5 feet per year. The other tree, an oak, was grown from an acorn on the ground and has grown 2 feet 2 feet per year. When will the trees be the same height? How tall will the trees be when they are the same height?
The height of the two trees will be same after 13 years and the height of the trees will be 24 feet.
According to the question,
We have the following information:
One tree, a ficus, was 6 feet tall when it. was planted and has grown 1.5 feet per year. The other tree, an oak, was grown from an acorn on the ground and has grown 2 feet per year.
So, for first tree, we have:
6, 7.5, 9, ...
Now, this is an arithmetic progression.
So, for the second tree, we have:
0,2,4, ...
Now, this is again an arithmetic progression.
Formula to find nth term of an A.P.:
an = a+(n-1)d where a is the first term and d is the common difference
6+(n-1)1.5 = 0+(n-1)2
6+1.5n-1.5 = 0+2n-2
4.5 = 2n-1.5n-2
6.5 = 0.5n
n = 13 years
Now, we have the height of the trees after 13 years:
an = 0+(13-1)2
an = 12*2
an = 24 feet
Hence, the height of the two trees will be same after 13 years and the height of the trees will be 24 feet.
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Help please I will give you 100 points
The angles of the given figure are:
∠1 = 128°
∠2 = 52°
∠3 = 47°
∠4 = ∠5 = 81°
What are corresponding angles?
Corresponding angles are those created when a transversal line crosses two straight lines. When two or more straight lines and a transversal intersect, corresponding angles are found at the intersection.According to the corresponding angles rule, a transversal cutting two parallel lines results in corresponding angles that are equal.The angle is supplementary(∠5)
52° + ∠5 + 47° = 180°
∠5 + 99° = 180°°
∠5 = 180° - 99°
∠5 = 81°
Then the ∠1 and 52° are supplementary (Interior adjacent angles)
∠1 + 52° = 180°
∠1 = 180° - 52°
∠1 = 128°
Now, ∠2
∠2 + ∠5 + 47° = 180°
∠2 + 81° + 47° = 180°
∠2 = 180° - 128°
∠2 = 52°
Based on interior opposite angles are equal. Then
∠5 = ∠4 and ∠3 = 47°
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Twice the difference of a number and -3 is 4. Find the number.
Answer:
The number is 5
Step-by-step explanation:
Let us use an equation ( X is the unknown number)
2(x-3)=4
2x-6=4
2x-6+6=4+6
2x/2=10/2
x=5
true or false Two planes intersected by a third plane are parallel
Two planes that are orthogonal to one another are parallel. This is untrue. Although they might not be parallel, two planes can be orthogonal to a third plane.
Define parallel.Parallel lines in geometry are coplanar, straight lines that don't cross at any point. In the same three-dimensional space, parallel planes are any planes that never cross. Curves with a predetermined minimum distance between them and no contact or intersection are said to be parallel.
Given,
Two planes intersected by a third plane are parallel.
Two planes that are orthogonal to one another are parallel. This is untrue. Although they might not be parallel, two planes can be orthogonal to a third plane.
A line is formed by the intersection of two planes. The planes are parallel if they do not intersect. Due to the endless nature of planes, they cannot meet at a single place. Stack a hardcover book on your desk and open the two hard covers at any random angle. The coverings' planes are not parallel to one another but are individually perpendicular to the desk top (or necessarily perpendicular to each other).
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Alonso went to the store to buy some almonds. The price per pound of the almonds is $7.25 per pound and he has a coupon for $3.50 off the final amount. With the coupon, how much would Alonso have to pay to buy 5 pounds of almonds? Also, write an expression for the cost to buy pp pounds of almonds, assuming at least one pound is purchased.
Answer:
It costs 32.75 for five pounds. and the expression would be p7.25-3.50
Step-by-step explanation:
5*7.25 = 36. 25. 36.25-3.50=32.75
c=p7.25-3.50 would be the expression. :)
Write the following ratio using two other notations.
5 to 2
Use only the numbers above (not any others).
The ratio 5 to 2 is written in other notations as
5 : 25 / 2What are ratios?Mathematicians use the term "ratio" to compare two or more numbers.
It serves as a comparison tool to show how big or small an amount is in relation to another.
In a ratio, division is used to compare two amounts.
The ratio 5 is to 2 can be represented as a fraction to 5 / 2
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Moloch The Destroyer is looking to save up for an evil lair. He has placed $104,828 in an account with 1.02% interest compounded monthly. How much will he have after 2
years?
Moloch have $133,737.75 after 2 years at the interest of 1.02% per month.
What is compound interest?Interest accrued on both the principal sum of money and the interest already earned.
The formula for compound interest is A= p(1+r/100)ⁿ
Where A is amount, p is principal, r is rate and n is time.
Given that,
The amount Moloch placed in account = $104,828
The rate of interest = 1.02% per month
time = 2 years,
To find total amount Moloch has after 2 year,
Use formula
Amount = [tex]p(1+r/100)^{nt}[/tex]
= 104,828 (1+1.02/100)²ˣ¹²
= 104,828 (1+0.0102)²⁴
= 104,828 (1.0102)²⁴
= 104,828×1.27578
= 133,737.75
After 2 years, Moloch have $133,737.75 in account.
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Determine whether the given binomial is a factor of the polynomial following it. If it is a factor, then factor the polynomial completely.
x+2, x³+4x²-4x-16
Answer:
x+2 is a factory = (x +4)(x +2)(x -2)Step-by-step explanation:
You want the complete factorization of x³ +4x² -4x -16.
Factor by pairsPairing terms of the given polynomial, we have ...
(x³ +4x²) -(4x +16)
Factoring each pair gives ...
x²(x +4) -4(x +4)
= (x² -4)(x +4)
Difference of squaresThe factorization of x² -4 is found using the form for factoring the difference of squares:
a² -b² = (a +b)(a -b)
x² -4 = (x +2)(x -2)
Note that x+2 is a factor here.
Complete factorizationThe complete factorization of the given polynomial is ...
x³ +4x² -4x -16 = (x +4)(x +2)(x -2)
This is confirmed by the graph, which shows zeros at x = -4, -2, 2.
Is -3(5) the same thing as 5(-3)?
Answer:
yes, The result is the same
Step-by-step explanation:
-3(5)=-15
5(-3)=-15
Answer:
They are same (equal)
Step-by-step explanation:
-3 multiplied with 5 is equal to -15.
5 multiplied with -3 is also equal to -15
so these two expressions are same when multiplied because the products are equal to one another.
HELP QUICK PLEASE!!!
Answer: p = -2/3, sum = 0
Step-by-step explanation:
Additive inverse has the name numerical value as the given number but has the opposite sign so when they are added together they equal zero. The sum of any number and its additive inverse equal 0.
EX: 1 and -1
1+ (-1) = 0
EX: -4.5 and 4.5
-4.5 + 4.5 = 0
Can you guys help out and awnser this chart with the following questions:(
1) Saleena worked for 20 hours in total.
2) She earned $220 during the week.
Define time.Time can be described in mathematics as an ongoing and continuous series of events that take place one after another, from the past through the present, and into the future. The duration of events or the gaps between them can be measured, compared, or even ordered using time.
Given,
Saleena has a part time job.
a) On Monday
Start time = 4: 30 pm
End time = 9:00 pm
Hours worked = 4 : 30 hours
b) On Tuesday
Start time = 3: 00 pm
End time = 9 : 00 pm
Hours worked = 6 hours
c) On Thursday
Start time = 4: 30 pm
End time = 9: 00 pm
Hours worked = 4 hours 30 minutes
d) On Saturday
Start time = 10:30 pm
End time = 3 : 30 pm
Hours worked = 5 hours
Total hours worked = 4:30 + 6 + 4: 30 + 5
1) Saleena worked for 20 hours in total.
2) She earns $11/h
Saleena worked for 20 hours in total.
Multiplying by $11 for per hour
20 × 11
220
2) She earned $220 during the week.
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