Answer:
11/7 = (11 x 9)/(7 x 9) = 99/63 > 77/63
3/5 = (3 x 15)/(5 x 15) = 45/75
1/8 = (1 x 10)/(8 x 10) = 10/80
2/9 = (2 x 9)/(9 x 9) = 18/81
Step-by-step explanation:
I hopes this helps
Plz mark brainliest if correct
an adult with twice the mass of the student is also on the ride and remains stuck to the wall while the ride is rotating just like the student. derive an algebriac expression to show that the mass of the rider does not determine if the ride will remain stationaty against the wall while the ride is rotating
The force acting on the adult and the student, both stuck to the wall, is determined by their weight and the centripetal force acting on them. This means that the net force acting on both of them must be equal to zero.
The quadratic equation in LaTeX:
$ax^2 + bx + c = 0$
The weight of an object is proportional to its mass, and the centripetal force acting on an object is proportional to its mass and the square of its velocity.
Therefore, the ratio of the force acting on the adult to the force acting on the student will be equal to the square of the ratio of their masses and the square of the ratio of their velocities.
Let the mass of the student be 'm' and the mass of the adult be '2m'. Then, the ratio of the forces acting on them will be (2m) / m * (v_adult / v_student)^2, where 'v' represents velocity.
Since the ride remains stationary against the wall for both the student and the adult, this means that the net force acting on both of them must be equal to zero, i.e. their weight must be balanced by the centripetal force acting on them.
Thus, (2m) / m * (v_adult / v_student)^2 = 1.
This equation shows that the mass of the rider does not determine if the ride will remain stationary against the wall while rotating. The ride's velocity and the distribution of mass on the ride will determine whether it remains stationary or not, not the mass of the rider.
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One hundred four and twelve hundredths ___ One hundred four and two thousandths
Answer:
104.12 > 104.002
Step-by-step explanation:
what's the circumference of a circle with a radius of 10 inches. Use 3.14 for pi. C= how many inches?
Answer:
62.8 inches
Step-by-step explanation:
C=2pir= 62.8
h(a) = 3 - 2a ^ 2
h(- 3) =
Answer: -15
Step-by-step explanation:
First, calculate exponents.
-3 * -3 is 9.
Then multiply 2 and 9 which is 18.
3-18 is -15.
Two UNO students want to start a business selling slushies at the Gene Leahey Mall during the summer. They will have an initial cost of $500 to buy equipment and an additional $1.25 cost for each slushie they sell. They
plan to charge $3.50 for each slushie. Let C(x) represent the cost (in dollars) associated with starting and running the business and R(x) represent the revenue (in dollars) earned from sales. Let x represent the number
of slushies sold.
a. Write a linear function for cost.
C(x) =
b. Write a linear function for revenue.
R(x) =
Part (a)
The cost is the initial cost plus the cost per slushie multiplied by the number of slushies sold.
\(C(x)=500+1.25x\)
Part (b)
The revenue is the number of slushies sold multiplied by the amount charged per slushie.
\(R(x)=3.50x\)
Simplify please help me out please
Answer:
A the answer is A
Step-by-step explanation:
This is due today, please help me out and show me how you did it!!
The area of the rectangular figure with two semicircles on the opposite side is 36.56 sq cm.
What are the circumference and diameter of a circle?The circumference of a circle is the distance around the circle which is 2πr.
The diameter of a circle is the largest chord that passes through the center of a circle it is 2r.
Given, A rectangle with two semicircles on two opposite sides.
The length of the rectangle is 6cm and the width of the rectangle is 4cm.
The two given semicircles have a diameter of 4cm seems obvious.
∴ The area of the total figure is an area of the rectangle added to the area of 2 semicircles which makes up to a circle with a radius 2 cm.
∴ (4×6) + π(2)² sq cm.
= 24 + 4π sq cm.
= 24 + 12.56 sq cm.
= 36.56 sq cm.
The area which is not taken up in the rectangle and two circle questions are
(area of the rectangle - 2 times the area of a circle).
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WILL GIVE BRAINLIEST Suppose that the functions q and r are defined as follows.
q (x) = x^2 + 7
r (x) = \(\sqrt{x+4}\)
Find the following:
(r *q) (5) =
(q *r) (5) =
The values of the composite functions are
(r * q)(5) = 96
(q * r)(5) = 96
How to evaluate the composite functions?From the question, we have the following functions that can be used in our computation:
q(x) = x² + 7
r(x) = √(x + 4)
The composite functions are given as
(r * q)(5) and (q * r)(5)
The base functions of the above composite functions are
(r * q)(x) and (q * r)(x)
And they are calculated using
(r * q)(x) = r(x) * q(x)
(q * r)(x) = q(x) * r(x)
Substitute the known values in the above equations
So, we have the following equations
(r * q)(x) = (x² + 7) * (√(x + 4))
(q * r)(x) = (√(x + 4)) * (x² + 7)
Substitute 5 for x
(r * q)(5) = (5² + 7) * (√(5 + 4))
(q * r)(5) = (√(5 + 4)) * (5² + 7)
Evaluate the equations
(r * q)(5) = 96
(q * r)(5) = 96
Hence, the solution of the composite functions is 96
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Which function has the same range as f (x) = negative 2 StartRoot x minus 3 EndRoot + 8?
g(x) = -2√x + 8 is the function that has the same range as f(x) = -2√(x - 3) + 8. Both functions have the range of y ≤ 8
The function that has the same range as f(x) = -2√(x - 3) + 8 is g(x) = -2√x + 8. Both functions have the range of y ≤ 8.There are a few steps involved in determining which function has the same range as f(x) = -2√(x - 3) + 8. The range of a function refers to all the possible output values that the function can produce.Let's begin by examining the original function:f(x) = -2√(x - 3) + 8The square root symbol (√) implies that x-3 must be greater than or equal to 0. If x-3 is negative, then the function would produce an imaginary result.
Let's solve for x when f(x) = 0:0 = -2√(x - 3) + 8-8 = -2√(x - 3)4 = √(x - 3)16 = x - 3x = 19This tells us that the x-value that produces an output of 0 is x = 19. To determine the range, we need to find the maximum and minimum output values. We can use a graphing calculator or sketch a graph to determine the shape of the function and the range.The shape of the function suggests that the range is y ≤ 8, which means that the maximum value of the function is 8. This tells us that any function with the same maximum output value of 8 will have the same range as f(x).
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Which of the following is unbalanced?
A.
2Fe + 3Cl2 → 2FeCl3
B.
2Na + 2H2O → 2NaOH + H2
C.
SnO2 + H2 → Sn + 2 H2O
D.
N2O5 + H2O → HNO3
Answer:
A. 2Fe + 3CI2 - 2FeCI3 ........
.......................................................................
6.
(x+20)
47"
Solve for x.
Answer:
So first you do 47 -20=27, So x=27
The answer 27 is X =
whats 345 divided by 6
Answer:57.5
Step-by-step explanation:
057
6 345
0
34
30
45
42
3
u have a remainder of 3 so u add .5 to 57
Mr. Ringwald is preparing trail mix for his upcoming hiking trip. The recipe calls for ¾ cup of peanuts. Write the amount of peanuts Mr. Ringwald needs for his recipe as a decimal.
Answer:
3/4 = 0.75
Have a beautiful day!
Find the area of the triangle. around intermediate values to the nearest tenth. Use rounded values to calculate the next value. Found your final answer to the nearest tenth
The area of the triangle is 97.07 units².
Given is a triangle we need to find the area,
So, let the triangle be ABC and the altitude be AD.
Using the trigonometric ratios,
Sin 52° = AB / AD
Sin 52° = 9 / AD
AD = 9 / Sin 52°
AD = 11.42
Now,
Tan 26° = DC / AD
Tan 26° = DC / 11.42
DC = 5.56
Also,
Cos 26° = AD / AC
Cos 26° = 11.42 / AC
AC = 12.7
BC = 11.42 + 5.56
BC ≈ 17
Now, the sides are BC = 17, AC = 12.7 and AB = 9,
The area of the triangle = 1/2 x BC x AD = 1/2 x 17 x 11.42
= 5.71 x 17
= 97.07
Hence the area of the triangle is 97.07 units².
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66 out of the 75 employees at the water slides are temporary employees what percentage of the employees at the water slides are temporary
The percentage of the employees at the water slides are temporary is 88%
What is percentage?A percentage is a number or ratio that can be expressed as a fraction of 100. If we have to calculate percent of a number, divide the number by the whole and multiply by 100. Hence, the percentage means, a part per hundred.
To find the percentage of the employees that are temporary
66/75 x 100/1
=88%
Hence, 88% is the percentage of the employees at the water slides are temporary
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Find the area of the figure. 5in 2in 4in 5in
Answer: Your answer is 23.5in²
Hope it helped :D
Good Luck!
What is the data correlation in the scatter plot below?
No correlation
Positive
Negative
The data correlation in the scatter plot above include the following: B. positive.
What is a positive correlation?In Mathematics, a positive correlation is used to described a scenario in which two variables move in the same direction and are in tandem.
This ultimately implies that, a positive correlation exist when two variables have a linear relationship or are in direct proportion. Therefore, when one variable increases, the other variable generally increases, as well.
By critically observing the scatter plot shown in the image attached above, we can reasonably infer and logically deduce that there is a positive correlation between the x-values and y-values because they both increase simultaneously.
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For how many one-digit whole numbers greater than
0 is the product of the whole number and all its
factors a two-digit number?( )
A. 0
B. 2
C. 3
D. 4
a circle has a circumerence of 6 and an arc with a 60 degree central angle. what is the length of the arc
The length of the arc is 1 unit.
What is length of an arc?The distance that runs through the curved line of the circle making up the arc is known as the arc length.
length of an arc is expressed as;
l = tetha/360 ×2πr
the circumference of circle is expressed as ;
C = 2πr
6 = 2×3.14 × r
r = 6/6.28
r = 0.955 units
Therefore length of the arc
= 60/360 × 6
since 2πr is the circumference,
l = 360/360 = 1 unit
therefore the length of the arc is 1 unit.
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If the coordinates of a pre-image are (x, y), which motion rule represents a counterclockwise rotation of 90° about the origin?
Answer:
What is the angle of rotation for this counterclockwise rotation about the origin?
answer:
270°
Step-by-step explanation:
Question 7
Laura had 23 ounces of plant food. She wants to use the same amount of plant food each day on her garden. She wants to use all the plant food she has before buying more. Which statement is true?
If she uses plant food in her garden for 6 days, she uses
1
6
ounces of plant food each day
B
2
If she uses plant food in her garden for 10 days, she uses 2
23
ounces of plant food each day
Ounces of plant food each day
С
If she uses plant food in her garden for 8 days, she uses 3
8
8
1
D
If she uses plant food in het garden for 11 days, she uses 2 11 ounces of plant food each day
Answer:
(d) and (e) are true
Step-by-step explanation:
Given
\(Food = 23\ oz\)
See attachment for proper presentation of question
Required
Select all true statements
For any option to be true, it must satisfy the following condition.
\(Days * Food = 23\)
Option (a):
\(Days = 6\)
\(Food = 4\frac{1}{6}\) per day
So, we have:
\(Days * Food = 6 * 4\frac{1}{6}\)
\(Days * Food = 6 * \frac{25}{6}\)
\(Days * Food = 25\)
This is not true because: \(25 \ne 23\)
Option (b):
\(Days = 10\)
\(Food = 2\frac{2}{23}\) per day
So, we have:
\(Days * Food = 10 * 2\frac{2}{23}\)
\(Days * Food = 10 * \frac{48}{23}\)
\(Days * Food = \frac{480}{23}\)
\(Days * Food = 21\) --- approximated
This is not true because: \(21 \ne 23\)
Option (c):
\(Days = 8\)
\(Food = 3\frac{1}{8}\) per day
So, we have:
\(Days * Food = 8 * 3\frac{1}{8}\)
\(Days * Food = 8 * \frac{25}{8}\)
\(Days * Food = 25\) --- approximated
This is not true because: \(25 \ne 23\)
Option (d):
\(Days = 11\)
\(Food = 2\frac{1}{11}\) per day
So, we have:
\(Days * Food = 11 * 2\frac{1}{11}\)
\(Days * Food = 11 * \frac{23}{11}\)
\(Days * Food = 23\) --- approximated
This is true because: \(23 = 23\)
Option (e):
\(Days = 7\)
\(Food = 3\frac{2}{7}\) per day
So, we have:
\(Days * Food = 7 * 3\frac{2}{7}\)
\(Days * Food = 7 * \frac{23}{7}\)
\(Days * Food = 23\) --- approximated
This is true because: \(23 = 23\)
Alanis is moving and needs to pack two mirrors the largest mirror fits in a box that is 18 inches wide by 20 inches long her smaller mirror is similar in proportion to the larger mirror Alanis determines that the width of the smaller box needs to be a minimum of 9 inches. what should the minimum length of the box to hold the smaller mirror ?
The minimum length of the box to hold the smaller mirror is 10 inches for largest mirror fits in a box that is 18 inches wide by 20 inches long her smaller mirror.
What is proportion ?
In mathematics, proportion refers to the equality of two ratios. Two ratios are said to be proportional if they have the same relative size, meaning they represent the same relationship between quantities.
For example, if we have two ratios, such as 2/3 and 4/6, they are proportional because they represent the same relationship between two quantities. We can say that 2 is to 3 as 4 is to 6, and we can simplify both ratios by dividing the numerator and denominator of each by their greatest common factor, which in this case is 2.
Since the smaller mirror is similar in proportion to the larger mirror, the ratio of their corresponding sides is the same. Therefore, the width of the smaller box is half of the width of the larger box (9 inches is half of 18 inches).
To find the minimum length of the smaller box, we need to use the same ratio of sides. The length of the larger box is 20 inches, so the length of the smaller box should be half of 20 inches, which is 10 inches.
Therefore, the minimum length of the box to hold the smaller mirror is 10 inches.
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Is it weird i got through middle school without knowing how to solve shape degrees?
Answer:
no
Step-by-step explanation:
most people go through mid school cheating
Answer:
probably not cause same lol
Step-by-step explanation:
Simplify the trigonometric expression below by writing the simplified form in terms of sin(x).
tan(x)+cot(x)/sec(x)=
The expression can be simplified to: \(tan(x) + cot(x)/sec(x) = sin(x) * (1 / \sqrt(1 - sin^2(x)) + \sqrt(tan^2(x)) / \sqrt(1 - sin^2(x)))\)
How to simplifyWe can simplify the expression as follows:
tan(x) + cot(x)/sec(x) = tan(x) + 1/tan(x) / 1/cos(x) = tan(x) + cos(x) / tan(x) * cos(x) = tan(x) + cos^2(x) / tan(x)
Using the identity: tan(x)^2 + 1 = sec^2(x), we can simplify further:
tan(x) + cos^2(x) / tan(x) = tan(x) + cos^2(x) / (sqrt(sec^2(x) - 1)) = tan(x) + cos^2(x) / sqrt(tan^2(x) + 1 - 1) = tan(x) + cos^2(x) / sqrt(tan^2(x))
Using the identity sin^2(x) + cos^2(x) = 1, we can simplify further:
\(tan(x) + cos^2(x) / \sqrt(tan^2(x)) = tan(x) + (1 - sin^2(x)) / \sqrt(tan^2(x)) = tan(x) + \sqrt(1 - sin^2(x)) / \sqrt(tan^2(x)) = sin(x) * (1 / \sqrt(1 - sin^2(x)) + \sqrt(tan^2(x)) / \sqrt(1 - sin^2(x)))\)
Therefore, the expression can be simplified to:
\(tan(x) + cot(x)/sec(x) = sin(x) * (1 / \sqrt(1 - sin^2(x)) + \sqrt(tan^2(x)) / \sqrt(1 - sin^2(x)))\)
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Plz anserw the question below.
Answer:
x=70
Step-by-step explanation:
Due to the law of alternate interior angles, we can see that one of the angles in the triangle is equal to 35 degrees as well (please see the picture attached).
We're given that one of the exterior angles of the triangle is equal to 105. The exterior angle of a triangle will always be equal to the sum of the two opposite interior angles. Knowing this, we can write:
x+35=105
Subtract both sides by 35
x+35-35=105-35
x=70
Therefore, the value of x is 70 degrees.
I hope this helps!
IS THIS RIGHT? (28 points easy!!)
Step-by-step explanation:
yes, the step is correct.
a² = cx | multiply by c
ca² = c²x
I am just not sure how that simplified the equation.
what do you want to achieve ? what's the goal here ?
to solve the equation for x it would be to divide both sides by c, which gives
a²/c = x
Does the point (–7, –9) satisfy the equation y = –2x − 5?
We are given the following equation
\(y=-2x-5\)We need to substitute the (-7, -9) into the equation to find out whether it satisfies the equation or not.
x = -7
y = -9
\(\begin{gathered} y=-2x-5 \\ -9=-2(-7)-5 \\ -9=14-5 \\ -9\ne9 \end{gathered}\)As you can see, -9 is not equal to 9
This means that the point (-7, -9) doesn't satisfy the given equation.
Find the value of the test statistic for testing whether there is a linear relationship between the and the estimated number. Round your answer to two decimal places, if necessary.
the value of the test statistic for testing whether there is a linear relationship between the and the estimated number is 0.3506905
Using a correlation Coefficient calculator, the correlation Coefficient, r for the data = 0.127
The test statistic :
T = r² / √(1 - r²) / (n - 2)
Sample size, n = 10
Hence,
T = 0.127² / √(1 - 0.127²) / (10 - 2)
T = (0.016129 / 0.3506905)
T = 0.3506905
The value of the test statistic to 2 decimal places is 0.35
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A) Find an equation for the line perpendicular to the tangent line to the curve y=x^3-4x+6 at the point (2,6)
-The equation is y=
b) What is the smallest slope on the curve? At what point on the curve does the curve have this slope?
-The smallest slope on the curve is
-The curve has the smallest slope at the point
c) Find equations for the tangent lines to the curve at the points where the slope of the curve is 8.
Answer:
f(x) = x³ - 4x + 6
f'(x) = 3x² - 4
a) f'(2) = 3(2²) - 4 = 12 - 4 = 8
6 = 8(2) + b
6 = 16 + b
b = -10
y = 8x - 10
b) 3x² - 4 = 0
3x² = 4, so x = ±2/√3 = ±(2/3)√3
= ±1.1547
f(-(2/3)√3) = 9.0792
f((2/3)√3) = 2.9208
c) 3x² - 4 = 8
3x² = 12
x² = 4, so x = ±2
f(-2) = (-2)³ - 4(-2) + 6 = -8 + 8 + 6 = 6
6 = -2(8) + b
6 = -16 + b
b = 22
y = 8x + 22
f(2) = 6
y = 8x - 10
The equation perpendicular to the tangent is y = -1/8x + 25/4
-The smallest slope on the curve is 2.92
The curve has the smallest slope at the point (1.15, 2.92)
The equations at tangent points are y = 8x + 16 and y = 8x - 16
Finding the equation perpendicular to the tangentFrom the question, we have the following parameters that can be used in our computation:
y = x³ - 4x + 6
Differentiate
So, we have
f'(x) = 3x² - 4
The point is (2, 6)
So, we have
f'(2) = 3(2)² - 4
f'(2) = 8
The slope of the perpendicular line is
Slope = -1/8
So, we have
y = -1/8(x - 2) + 6
y = -1/8x + 25/4
The smallest slope on the curveWe have
f'(x) = 3x² - 4
Set to 0
3x² - 4 = 0
Solve for x
x = √[4/3]
x = 1.15
So, we have
Smallest slope = (√[4/3])³ - 4(√[4/3]) + 6
Smallest slope = 2.92
So, the smallest slope is 2.92 at (1.15, 2.92)
The equation of the tangent lineHere, we set f'(x) to 8
3x² - 4 = 8
Solve for x
x = ±2
Calculate y at x = ±2
y = (-2)³ - 4(-2) + 6 = 6: (-2, 0)
y = (2)³ - 4(2) + 6 = 6: (2, 0)
The equations at these points are
y = 8x + 16
y = 8x - 16
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