We will have that the following are supplementary angles:
Find the total area of the shape shown below in square feet. Enter only the number.
16 feet
5 feet
12 feet
9 feet
7 feet
7 feet
The solution is
Answer:
129, because you split the shape into two find the area of them separately and then add them up
A random sample of 10 college students was drawn from a large university. Their ages are 22, 17, 27, 20, 23, 19, 24, 18, 19, and 24 years, with a sample standard deviation of 3.2. Suppose that you want to test whether the population mean age differs from 20. What is your decision based on a test at a 1% significance level
Solution :
Given :
The sample mean = 21.3
Standard deviation = 3.2
The null hypothesis is : \(H_0: \mu =20\)
The alternate hypothesis : \(H_a:\mu \neq20\)
This is a two tailed test, for which a \(\text{t-test for one mean}\) with an unknown population of a standard deviation is being used.
Now the significance level, \(\alpha = 0.1\), as well as the critical value for a two tailed test is \(t_c = 1.833\)
The rejection region is \(R = \{ t:|t| > 1.833 \}\)
The t-statistic is computed as follows :
\(t=\frac{\overline x - \mu_0}{s/ \sqrt n}\)
\(t=\frac{21.3-20}{3.2/ \sqrt{10}}\)
= 1.285
Since it is observed that \(|t| = 1.285 \leq t_c=1.833\), it is then concluded that \(\text{the null hypothesis is not rejected.}\)
The p-value is p=0.231 and since p 0.231 ≥ 0.1, it is concluded that \(\text{the null hypothesis is not rejected.}\)
Conclusion
Thus we concluded that \(\text{null hypothesis}\) \(H_0\) is not rejected. Therefore, the population mean \(\mu\) is different than 20, at the 0.1 significance level.
which number line shows the solution to x + 8 > 15
7 is not included and hence it is depicted on the number line using an open dot. Hence, solution to the inequality is option B.
What is inequality?In mathematics, inequalities specify the connection between two non-equal numbers. Equal does not imply inequality. Typically, we use the "not equal sign (≠)" to indicate that two values are not equal. But several inequalities are utilized to compare the numbers, whether it is less than or higher than.
The given inequality is:
x + 8 > 15
Subtracting 8 on both sides of the equation:
x + 8 - 8 > 15 - 8
x > 7
Here, 7 is not included and hence it is depicted using an open dot.
Hence, option B is the correct answer.
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easy! please help :( The top shelf of a bookcase holds 6 fiction and 4 nonfiction books. On the bottom shelf are 3 fiction and 5 nonfiction books.
Choosing which 2 books describes a pair of dependent events?
None of the chosen pairs will be dependent as nothing is specified.
What are dependent and independent events?Independent events are those events whose occurrence does not have any effect on the events that may occur or occurred.
Dependent events are those vents whose occurrence either depends on some other event or has an effect on occurring or occurred vents.
Given, The top shelf of a bookcase holds 6 fiction and 4 nonfiction books. On the bottom shelf are 3 fiction and 5 nonfiction books.
As not mentioned that what kind of book he chooses first or types of book.
Also which shelf he chooses first choosing the first book is independent
and choosing the second book is also independent so none of the chosen pair will be dependent.
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A line passes though the point (6,-3) and a slope and has a slope of 3/2 Write an equation in point-slope form for this line
Answer:
y+3=3/2(x-6)
Step-by-step explanation:
y-y1=m(x-x1)
y-(-3)=3/2(x-6)
y+3=3/2(x-6)
4x/5 + 2/3 + 1x/5 = x
Answer:
There are no solutions.
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
4x/5+2/3+1x/5=x
4/5x+2/3+1/5x=x
(4/5x+1/5x)+(2/3)=x(Combine Like Terms)
x+23=x
x+23=x
Step 2: Subtract x from both sides.
x+2/3−x=x−x
2/3=0
Step 3: Subtract 2/3 from both sides.
2/3−2/3=0−2/3
0=−2/3
Answer:
There are no solutions.
I have 0 idea what this even means? Does anyone know the answer and if you could possibly elaborate if you do? Very confused over here
Let f(x) = lnx and g(x) = log₂x. for all 0 < x < 1, f(x) < g(x): True.
How to determine the corresponding output value for this function?In this scenario and exercise, we would determine the corresponding output value for the functions f(x) and g(x) under the given mathematical operation and independent variables.
When x = 1, the output value for f(x) based on the table of values is given by;
f(x) = lnx
f(1) = ln(1).
f(1) = 0.
When x = 2, the output value for f(x) based on the table of values is given by;
f(x) = lnx
f(2) = ln(2).
f(2) = 0.69314718
When x = 1, the output value for g(x) based on the table of values is given by;
g(x) = log₂x
g(1) = log₂(1)
g(1) = 0.
When x = 2, the output value for g(x) based on the table of values is given by;
g(x) = log₂x
g(2) = log₂(2)
g(2) = 1.
In this context, we can logically deduce that the function f(x) is less than function g(x) for all 0 < x < 1.
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what are the answers? thank you.
Answer:
176.78cm squared,23.57cm,Step-by-step explanation:
inorder to solve the area of the shaded area;°/360ñRsquared
arc length you use ;°/360ñD
The oblique pyramid has a square base.
An oblique pyramid has a square base with a base edge length of 2 centimeters. The vertical height of the pyramid is 3.75 centimeters.
What is the volume of the pyramid?
2.5 cm3
5 cm3
6 cm3
7.5 cm3
Answer:
5cm^3
Step-by-step explanation:
What are the dimensions if the poster is enlarged by a factor of
Answer:
12
Step-by-step explanation:
A waitress sold 11 ribeye steak dinners and 14 grilled salmon dinners, totaling $551.11 on a particular day. Another day she sold 15 ribeye steak dinners and 7 grilled salmon dinners, totaling $581.47. How much did each type of dinner cost?
Answer:
A ribeye steak dinner costs $32.23 and a grilled salmon dinner costs $14.04.
Step-by-step explanation:
Let's use variables to represent the cost of each dinner. Let's say that the cost of a ribeye steak dinner is "r" and the cost of a grilled salmon dinner is "s".
From the first day's sales, we know:
11r + 14s = 551.11From the second day's sales, we know:
15r + 7s = 581.47We now have two equations with two variables, which we can solve using elimination or substitution.
Let's use elimination. If we multiply the first equation by 15 and the second equation by 11, we can eliminate the "r" variable:
165r + 210s = 8266.65165r + 77s = 6396.17Subtracting the second equation from the first, we get:
133s = 1870.48Dividing both sides by 133, we get:
s = 14.04So a grilled salmon dinner costs $14.04.
We can substitute this value back into one of the original equations to solve for "r". Let's use the first equation:
11r + 14(14.04) = 551.1111r + 196.56 = 551.1111r = 354.55r = 32.23So a ribeye steak dinner costs $32.23.
Therefore, a ribeye steak dinner costs $32.23 and a grilled salmon dinner costs $14.04.
what is the value of b -a if a=18, b=27,and c= 11
what is the value of b -a if a=18, b=27,and c= 11
we have
(b-a)
so
For a=18 and b=27
substitutte in the given expression
(27-18)=9
therefore
the answer is 9Given: Quadrilateral DEFG is inscribed in circle P.
Prove: m∠D+m∠F=180∘
The sum of angles ∠D and ∠F in quadrilateral DEFG, inscribed in circle P, is equal to 180∘.
To prove that m∠D + m∠F = 180∘, we can use the property of angles inscribed in a circle.
In a circle, an inscribed angle is equal to half the measure of its intercepted arc. Therefore, if we can show that arc DE + arc FG = 360∘, we can conclude that m∠D + m∠F = 180∘.
Let's start the proof:
1. Quadrilateral DEFG is inscribed in circle P. This means that all the vertices of the quadrilateral lie on the circumference of the circle.
2. Let's consider arc DE and arc FG. These arcs are intercepted by angles ∠D and ∠F, respectively.
3. By the property of angles inscribed in a circle, we know that the measure of an inscribed angle is equal to half the measure of its intercepted arc.
4. Therefore, m∠D = 1/2(arc DE) and m∠F = 1/2(arc FG).
5. We want to prove that m∠D + m∠F = 180∘. This is equivalent to showing that 1/2(arc DE) + 1/2(arc FG) = 180∘.
6. Combining the fractions, we have 1/2(arc DE + arc FG) = 180∘.
7. Now, we need to show that arc DE + arc FG = 360∘.
8. Since quadrilateral DEFG is inscribed in circle P, the sum of the measures of all the arcs intercepted by the sides of the quadrilateral is equal to 360∘.
9. This means that arc DE + arc EF + arc FG + arc GD = 360∘.
10. However, we can observe that arc EF and arc GD are opposite sides of the same chord, so they have equal measures. Therefore, arc EF = arc GD.
11. Substituting arc GD with arc EF in the equation from step 9, we have arc DE + arc EF + arc FG + arc EF = 360∘.
12. Simplifying the equation, we get 2(arc DE + arc EF + arc FG) = 360∘.
13. Dividing both sides by 2, we have arc DE + arc EF + arc FG = 180∘.
14. Comparing this result with step 7, we can conclude that arc DE + arc FG = 180∘.
15. Finally, going back to our initial goal, we can now substitute arc DE + arc FG with 180∘ in the equation from step 6: 1/2(180∘) = 180∘.
16. Simplifying, we have 90∘ = 180∘, which is a true statement.
17. Therefore, we have proven that m∠D + m∠F = 180∘.
Thus, we have successfully proved that the sum of angles ∠D and ∠F in quadrilateral DEFG, inscribed in circle P, is equal to 180∘.
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Help me please i really need it
Answer:
Step-by-step explanation:
RSB is a right angle
12. RSB is 90 degrees
13. A right angle is 90 degrees
H is between P and S
14. PS + PH = HS
15. Deductive Reasoning
Jaylin has a scale model of a train. 2 cm in the lotto represents 3 feet in a real train. The height of the model train is 10.2 cm. What is the height of the real train?
Let f be the function given by f(x) = tan x and let g be the function given by g(x) = x³. At
what value of x in the interval 0 ≤x≤ pi do the graphs of f and g have parallel tangent lines?
The value of x in the interval 0 ≤x≤ pi is 2.083 so the graph f and g have parallel tangent lines
What is Function?In mathematics, a function is represented as a rule that produces a distinct result for each input x. In mathematics, a function is indicated by a mapping or transformation. The collection of all the values that the function may input while it is defined is known as the domain. The entire set of values that the function's output can produce is referred to as the range. The set of values that could be a function's outputs is known as the co-domain.
Given:
f(x) = tan x
and, g(x) = x²
Now, f(x) = t g(x)
and, g(x) = x²
On differentiating f(x) we get
f'(x) = t g²(x) + 1
and, g(x) = 2x
Now, the parallel tangent line
f' (x) = g'(x)
t g²(x) + 1 = 2x
since the interval for x is 0 ≤x≤ pi.
So, the value of x = 2.083
Hence, the value of x is 2.083.
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Match each percent with the fraction or decimal equivalent
Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. Release your mouse button when the item is place. If you change your mind, drag the item to the trashcan. Click the trashcan to clear all your answers.
Write with fractional exponents. (Do not use parentheses.)
Answer:
4\(y^{\frac{3}{2} }\)
Step-by-step explanation:
using the rule of exponents/ radicals
\(\sqrt[n]{a^{m} }\) = \(a^{\frac{m}{n} }\)
then
4 \(\sqrt{y^{3} }\)
= 4\(y^{\frac{3}{2} }\)
What is the domain of the piecewise function?
A. x<0, x>4
B. -∞ 4
C. all real numbers
Answer:
C. All real numbers
3244314 x 2 + 3242
also what is the multiplication of 232 x 5
Answer:
Step-by-step explanation:
3244314 x 2 = 6,488,628
6,488,628 + 3242 = 6,491,870
The multiplication of 232 x 5 = 1,160
♥️♥️♥️♥️♥️♥️♥️♥️♥️ help me
9514 1404 393
Answer:
AC = 2.0 mm = 41.3 kgStep-by-step explanation:
The sum of torques about the pivot point is zero when the system is in equilibrium. That means the total of clockwise torques is equal to the total of counterclockwise torques. For this purpose, torque can be modeled by the product of mass and its distance from the pivot. The uniform beam can be modeled as a point mass at its center.
__
a) Let E represent the location of the center of mass of the beam. So, AE = 1.5 m. Then the distance from C to E is AC-AE = AC -1.5 and the CCW torque due to the beam's mass is (16 kg)(AC -1.5 m).
The distance from B to C is 3 m - AC, so the CW torque due to the particle at B is (7 kg)(3 -AC m)
These are equal, so we have ...
16(AC -1.5) = 7(3 -AC)
16AC -24 = 21 -7AC . . . . . eliminate parentheses
23AC = 45 . . . . . . . . . . . add 7AC+24
AC = 45/23 ≈ 1.957 . . divide by the coefficient of AC
AC ≈ 2.0 meters . . . . rounded to 1 dp
__
b) The torques in this scenario are ...
M(0.7) = 16(0.8) +7(2.3) . . . . . . AD = 0.7 m, DE = 0.8 m, DB = 2.3 m
M = 28.9/0.7 ≈ 41.286 . . . . simplify, divide by the coefficient of M
M = 41.3 kg . . . . rounded to 1 dp
_____
Additional comment
Torque is actually the product of force and distance from the pivot. Here, the forces are all downward, and due to the acceleration of gravity. The gravitational constant multiplies each mass, so there is no harm in dividing the equation by that constant, leaving the sum of products of mass and distance.
how do you tell if these fractions are equivalent? 2/3 and 8/12.
Answer:
Multiply 2/3 by 4 to make it have the same denominator.
Step-by-step explanation:
This could work for all fractions, you just need to get them to have the same denominator.
Ps. If you were wondering, they are equivalent.
The values of 60, 62, and 84 were common to both samples. The three values are identified as outliers with respect to the age-group 20 years to 30 years because they are either 1.5 times the interquartile range (IQR) greater than the upper quartile or 1.5 times the IQR less than the lower quartile. Using the same method for identifying outliers, which of the three values are identified as outliers for the age-group 40 years to 50 years
Answer:
Only 60 is an identified outlier
Step-by-step explanation:
Given
Age group: 40 to 50
\(Min = 60\) \(Q_1 = 70\) \(Median= 73\)
\(Q_3 = 76\) \(Max = 85\)
Conditions for outlier
\(Value > Q_3 + 1.5 * IQR\)
\(Value < Q_1 - 1.5 * IQR\)
See attachment for complete question
Required
Which of 60, 62 and 84 is an outlier of age grout 40 to 50 years
First, calculate the IQR of group 40 to 50.
This is calculated as:
\(IQR = Q_3 - Q_1\)
Where:
\(Q_3 = 76\) and \(Q_1 = 70\)
So:
\(IQR = 76 - 70\)
\(IQR = 6\)
Next, is to test the outlier conditions on each value (i.e. 60, 62 and 84)
Testing 60
Condition 1
\(Value > Q_3 + 1.5 * IQR\)
\(60 > 76 + 1.5 * 6\)
\(60 > 76 + 9\)
\(60 > 85\) --- False
Condition 2
\(Value < Q_1 - 1.5 * IQR\)
\(60 < 70 - 1.5 * 6\)
\(60 < 70 - 9\)
\(60 < 61\) --- True
Because one of the conditions is true, then 60 is an outlier of group 40 - 50 years
Testing 62
Condition 1
\(Value > Q_3 + 1.5 * IQR\)
\(62> 76 + 1.5 * 6\)
\(62 > 76 + 9\)
\(62 > 85\) --- False
Condition 2
\(Value < Q_1 - 1.5 * IQR\)
\(62 < 70 - 1.5 * 6\)
\(62 < 70 - 9\)
\(62 < 61\) --- False
Because both conditions are false, then 62 is not an outlier of group 40 - 50 years
Testing 84
Condition 1
\(Value > Q_3 + 1.5 * IQR\)
\(84> 76 + 1.5 * 6\)
\(84 > 76 + 9\)
\(84 > 85\) --- False
Condition 2
\(Value < Q_1 - 1.5 * IQR\)
\(84 < 70 - 1.5 * 6\)
\(84 < 70 - 9\)
\(84 < 61\) --- False
Because both conditions are false, then 84 is not an outlier of group 40 - 50 years
PLEASE HELP ASAP I REALLY NEED HELP
Jing is helping the kindergarten teacher put together bags of crayons. Each bag has 4 crayons, and 1/4 of the crayons in each bag are green. What fraction of the crayons in 3 bags is green? A. 3/12 B. 3/4 C. 4/3 D. 12/3
Answer:
A. 3/12
Step-by-step explanation:
1/4 x 3 for the three different bags and each bag having 1 crayon that's the color green it's 1/4 however due to there being 4 crayons in each bag
the only other answer could be 1/4 when simplified
Answer:
Step-by-step explanation:
1 bag of crayons = 4 crayons = 100% (10/10)
1/4 bag of crayons = 1 crayon = 25% = 1 green crayon per bag
3 bags of crayons = 12 crayons (3 x 4)
if 1 bag has 1 green crayon and there are 3 bags then there are 3 green crayons
A. 3/12
At a local bakery, at a local bakery Ariel Bots for oatmeal cookies four $1.20 Mia bought 9 mil cookies for $2.70 Becky bought 12 oatmeal cookies for $3.60 Larry purchased 15 oatmeal cookies $4.5. Graph the data on the graph
EXPLANATION
Drawing given set data ni a graph, will give us:
As we can see in graph, this is a proportional relationship given by a straight line.
A cone with a radius of 4 inches and a slant height of 10 inches is shown.
What is the surface area of the cone, in square inches?
62.8
125.7
150.8
O 175.9
4 in.
10 in.
Answer:
167.6190 approximately 167.62 inches
Step-by-step explanation:
formula for surface area of a cone is 1/3πr×r×slant height. How this helps.
what is 8 divided by 874.....for my little sister
What does s+8 equal?
Answer:
it will be 12f
Step-by-step explanation:
since you told the wrong question
Un parque de diversiones quiere construir balsas con 3 troncos de palmera, los cuales miden 15, 9 y 6 metros, ¿cuánto
deben medir los pedazos de tronco si tienen que ser del mismo tamaño?, ¿cuántos pedazos de troncos saldrán?
Encontrando un factor comun entre los 3 números dados, concluimos que cada pedazo de tronco debe medir 3 metros, y se obtendran 10 pedazos en total.
¿cuánto deben medir los pedazos de tronco si tienen que ser del mismo tamaño?Sabemos que los troncos miden 15, 9, y 6 metros, si los queremos cortar en pedazos de igual longitud, de tal forma que nada se desperdicie, entonces debemos encontrar un factor comun entre esos 3 numeros.
Los podemos reescribir como:
15 = 3*5
9 = 3*3
6 = 2*3
Entonces el unico factor comun entre las 3 longitudes es 3.
El tronco de 15 metros dará:
15/3 = 5 pedazos de tronco.
El tronco de 9 metros dará:
9/3 = 3 pedazos de tronco.
El tronco de 6 metros dará:
6/3 = 2 pedazos de tronco.
Sumando eso obtenemos 5 + 3 + 2 = 10 pedazos en total.
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Consider the following figure.
(Note that the figure is not drawn to scale.)
20°
L
47°
89°
Order the side lengths IK, KL, IJ, IL, and LJ from least to greatest.
The side lengths from least to greatest as follows:
IK < KL < IJ < IL < LJ
To order the side lengths IK, KL, IJ, IL, and LJ from least to greatest, we can analyze the given figure.
Since the figure is not drawn to scale, we cannot determine the exact lengths of the sides. However, we can make some observations based on the given angles.
Let's analyze the angles:
Angle L: Since angle L is marked as 47°, we know that side KL is the shortest side, as it is opposite to the smallest angle in a triangle.
Angle I: Since angle I is marked as 20°, we can infer that side IJ is longer than side IK, as it is opposite to a larger angle.
Angle LJ: Since angle LJ is marked as 89°, we can conclude that side LJ is the longest side, as it is opposite to the largest angle in the triangle.
Based on these observations, we can order the side lengths from least to greatest as follows:
IK < KL < IJ < IL < LJ
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