The size of three angles of the triangle are 55 degrees, 55 degrees, and 15 degrees. The three consecutive odd numbers are 9, 11, and 13 and three consecutive even numbers are 32, 34, and 36.
1.To find the size of each angle in the triangle, we know that the sum of all angles in a triangle is 180 degrees. So we can set up an equation:
(2x + 5) + (2x + 5) + (x - 10) + 65 = 180
Simplifying and solving for x, we get:
5x + 55 = 180
5x = 125
x = 25
Now we can substitute x back into the expressions for each angle and simplify:
2x + 5 = 55 degrees
2x + 5 = 55 degrees
x - 10 = 15 degrees
Therefore, the three angles of the triangle are 55 degrees, 55 degrees, and 15 degrees.
2. Let's call the first odd number x. Then the next two consecutive odd numbers would be x + 2 and x + 4. We know that the sum of these three numbers is 33, so we can set up an equation:
x + (x + 2) + (x + 4) = 33
Simplifying and solving for x, we get:
3x + 6 = 33
3x = 27
x = 9
Therefore, the three consecutive odd numbers are 9, 11, and 13.
3. Let's call the first even number x. Then the next two consecutive even numbers would be x + 2 and x + 4. We know that the sum of these three numbers is 102, so we can set up an equation:
x + (x + 2) + (x + 4) = 102
Simplifying and solving for x, we get:
3x + 6 = 102
3x = 96
x = 32
Therefore, the three consecutive even numbers are 32, 34, and 36.
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Find the measure of the missing angles.
Helpp
x = 90 ( supplementary angle )
y = 180 - ( 90+ 26)
= 180 - 116
= 64
The lenght of the rectangle is 6 yd longer than its width. If the perimeter is 56 yd, find its length and width
On solving the problem we got that, 17yds and 11yds are its length and width
What does perimeter mean?The circumference of an item is known as its perimeter. For instance, your home has a yard that is enclosed. The length of the fence is the perimeter. The length of your fence is 200 feet if the yard is 50 feet by 50 feet.
suppose length =L
And width = W
As, length is 6 yd longer than its width,
so L = 6 + W
And we know that
formula for perimeter,
\(Perimeter = 2 X ( L + W )\)
Given,
perimeter is 56yds:
56= 2(L + W)
Substituting:
=> 68 = 2(6 + W) + 2W
=> 12+ 2W + 2W = 56
=> 4W = 44
=> W = 11 yds
=> L = 11+6 = 17 yds
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A paint can is 3 inches in diameter and 6 inches high . Calculate how much paint this can can hold
Round to the nearest tenth
Mr. Andrews is saving to buy a violin that costs $1,000. He has already saved $450 and decides to put all of this money into a new savings account. The money in this account will earn 6% interest, which is compounded quarterly. Which model would be appropriate to determine how many years, y, Mr. Andrews will have to wait until he has earned enough money in this account to buy the violin? A = P ( 1 + r n ) n t A = amount of money accumulated after n years, including interest, P = principal amount (the initial amount deposited), r = annual rate of interest, n = number of times the interest is compounded per year, and t = number of years the amount is deposited
Answer:
1000=450 (1+ 0.06) y
4
Step-by-step explanation:
In the paranthesis where it says 0.06 and then 4 at the bottom its supposed to be a fraction btw
The Center for Disease Control and Prevention reports that 25% of bay boys 6-8 months old in the United States weigh more than 20 pounds. A sample of 16 babies is studied.
Okay, it seems like you want to analyze a sample of 16 babies based on their weight.
The information you provided states that the Center for Disease Control and Prevention reports that 25% of baby boys aged 6-8 months in the United States weigh more than 20 pounds.
However, you haven't mentioned the specific question or analysis you want to perform on the sample. Could you please clarify what you would like to know or do with the given information?
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Trigonometry Problem, please help and explain
The bottom triangle is a 30°-60°-90° triangle that has the special property that its hypotenuse is twice the length of the shortest leg, 20√3.
The upper triangle is a 45°-45°-90° triangle, in which the hypotenuse is longer than one of its legs by a factor of √2.
All this to say x = √2 × 20√3 = 20√6 (A).
solve for x: 4x(3y-2)=7x+11
Answer:
x=11(12y-15)
Step-by-step explanation:
4x(3y-2)=7x+11
12xy-8x=7x+11
12xy-8x-7x=11
12xy-15x=11
x(12y-15)=11
x(12y-15)/(12y-15)=11/(12y-15)
x=11/(12y-15)
Answer: \(x=\frac{11}{12y-15}\)
Step-by-step explanation:
To solve for x, we want to isolate the variable.
\(4x(3y-2)=7x+11\) [distribute]
\(12xy-8x=7x+11\) [subtract both sides by 7x]
\(12xy-8x-7x=11\) [combine like terms]
\(12xy-15x=11\) [factor out x]
\(x(12y-15)=11\) [divide both sides by 12y-15]
\(x=\frac{11}{12y-15}\)
Now, we know that \(x=\frac{11}{12y-15}\).
Let pi = P{X = i} and suppose that p1 + p2 + p3 = 1. If E[X] = 2, what values of p1, p2, p3 (a) maximize and (b) minimize Var(X)?
The values of p1, p2, p3 that minimize Var(X) are p1 = 0, p2 = 1/3, and p3 = 2/3.
We can use the following formulas to find the variance of X:
Var(X) = E[X^2] - (E[X])^2
E[X] = p1 + 2p2 + 3p3
E[X^2] = p1 + 4p2 + 9p3
Substituting these expressions into the formula for the variance, we get:
Var(X) = p1 + 4p2 + 9p3 - (p1 + 2p2 + 3p3)^2
Simplifying this expression, we get:
Var(X) = -\((p1^2 + 2p2^2 + 3p3^2) + 2p1p2 + 6p1p3 + 4p2p3\)
To maximize Var(X), we want to maximize this expression subject to the constraint p1 + p2 + p3 = 1. We can use Lagrange multipliers to find the maximum. Let:
L(p1, p2, p3, λ) = -\((p1^2 + 2p2^2 + 3p3^2) + 2p1p2 + 6p1p3 + 4p2p3 + λ(1 - p1 - p2 - p3)\)
Taking partial derivatives and setting them equal to zero, we get:
-2p1 + 2p2 + 6p3 - λ = 0
4p1 - 4p2 + 4p3 - λ = 0
6p1 + 8p2 - 6p3 - λ = 0
p1 + p2 + p3 = 1
Solving these equations, we get:
p1 = 2/7, p2 = 3/7, p3 = 2/7, λ = 4/7
Therefore, the values of p1, p2, p3 that maximize Var(X) are p1 = 2/7, p2 = 3/7, and p3 = 2/7.
To minimize Var(X), we want to minimize the expression \(-(p1^2 + 2p2^2 + 3p3^2) + 2p1p2 + 6p1p3 + 4p2p3\) subject to the constraint p1 + p2 + p3 = 1. We can use the same Lagrange multiplier method to find the minimum. Taking partial derivatives and setting them equal to zero, we get:
-2p1 + 2p2 + 6p3 - λ = 0
4p1 - 4p2 + 4p3 - λ = 0
6p1 + 8p2 - 6p3 - λ = 0
p1 + p2 + p3 = 1
Solving these equations, we get:
p1 = 0, p2 = 1/3, p3 = 2/3, λ = 2/3
Therefore, the values of p1, p2, p3 that minimize Var(X) are p1 = 0, p2 = 1/3, and p3 = 2/3.
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Given the regression equation y-hat = 15.6 - 3.8x, the predicted y for x = 3 is ___________.
Work Shown:
y = 15.6 - 3.8x
y = 15.6 - 3.8*3
y = 4.2
A car rents for $180 per week plus $0.25 per mile. Find the cost of renting this car for a two week trip of 400 miles for a family of 4.
9514 1404 393
Answer:
$460
Step-by-step explanation:
If w is the number of weeks the car is rented, and m is the number of miles driven, the cost structure tells you the rental cost (c) is ...
c = 180w +0.25m
For w=2 and m=400, this becomes ...
c = 180·2 +0.25·400 = 360 +100 = 460
The cost of the 2-week rental will be $460.
__
The family size is irrelevant to the cost.
Look at the graph. To find the rate of change of the function, Kevin did the following:
StartFraction 0 minus (-1) Over 2 - 2.5 EndFraction = StartFraction 1 Over -0.5 EndFraction = -2.
What was Kevin's mistake?
He incorrectly chose (4,0) as a point on the graph.
He incorrectly chose (0,2) as a point on the graph.
He mixed up the numerator and the denominator of the fraction.
He subtracted -2 from 0 when he should have added -2 to 0.
A survey about issues affecting Bluff City Park was
given to 60 residents. The results of the survey are
shown below.
Issue
Yes No
Curfew
48 12
Skateboard use
26 34
Children under 14 accompanied by
38 22
a person at least 14 years old
Assume that the results in the table accurately predict
the response ratios for the town's 1.200 residents. How
many of the 1,200 residents would respond No on the
curfew issue?
F. 240
G. 300
H. 600
J. 680
K. 960
f=d+e+f i need help solving this i have to solve for f
Answer:
You can't solve for f since f is eliminated from the equation.
Step-by-step explanation:
f = d + e + f
Subtract f from both sides.
0 = d + e
You can't solve for f since f is eliminated from the equation.
Can somebody help me with this. 35 points! :)))))
Please i need help with this one
Answer:
center: (1,4)
radius=3
i need the answer for this asap
From the given graph we can see that the graphical representation of the function has an open dot on -1. Hence, the function has no solution for f(-1).
What is graphing solutions?An open dot on a number line graph denotes that the given number cannot be a solution, whereas a solid dot on the graph suggests that the supplied number should be considered as a potential solution. For instance, if you graph x > 7, you would put an open dot there because that is not a correct response (7 is not greater than itself).
From the given graph we can see that the graphical representation of the function has an open dot on -1. Hence, the function has no solution for f(-1).
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the actual value of k a is 1.78*10^{-5}. what could be some reasons for the error between our experimental and actual values?
The difference between the experimental Ka and the actual value of Ka could be due to several factors:
Inaccurate measurement of the concentration of acetic acid and sodium acetate.Improper mixing of the ingredients leading to non-homogeneous solution.Temperature variations during the experiment which can affect the reaction rate.Contamination of the solution with other substances that could interfere with the reaction.Improper use of the pH meter leading to inaccurate readings.Interference of other chemical reactions occurring simultaneously in the solution.It is important to control these sources of error in order to obtain more accurate results. Further investigation and repeat experiments may be necessary to confirm the experimental Ka value and minimize the error.
Complete question:
The actual value of Ka is 1.78∗10^−5. What could be some reasons for the error between our experimental Ka = 2.19*10^-5 and actual values? CH3COOH⇋H++CH3COO− To start, we mix the following ingredients in a beaker: 20 ml of 0.02M Acetic Acid 20 ml of 0.02M Sodium Acetate Methyl Red Bromocresol Green The ph was 4.66
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given parallelogram ABCD with A(-3,0), B(-2,3), C(3,2) and D(2,-1) find the coordinates of the diagonals AC and BD
how many 20mm long wire pieces could be cut from a 1 meter long wire piece
How many tacos must Derek buy for each pricing to be the cheapest?
If Derick plans to buy 6 tacos, an option he should choose is General Admission.
Derick should choose VIP if he has a total of $55 and wants to eat as many tacos as he can.
Derick must buy 8.4 tacos for the General Admission and the VIP option to cost the same.
Derek must buy 8.4 tacos for each pricing to be the cheapest.
What is the slope-intercept form?In Mathematics and Geometry, the slope-intercept form of the equation of a straight line is given by this mathematical equation;
y = mx + b
Where:
m represent the slope or rate of change.x and y are the points.b represent the y-intercept or initial value.Based on the information provided above, a linear equation that models General Admission is given by;
y = mx + b
y = 4x + 15
For VIP: y = 1.50x + 36
When x = 6 tacos, we have the following:
General Admission: y = 4x + 15
General Admission: y = 4(6) + 15 = $39.
VIP: y = 1.50x + 36
VIP: y = 1.50(6) + 36 = $45.
When y = $55, we have the following:
General Admission: y = 4x + 15
55 = 4x + 15
x = 40/4
x = 10 tacos.
VIP: y = 1.50x + 36
55 = 1.50x + 36
x = 19/1.50
x = 12.7 ≈ 13 tacos.
For the tacos to cost the same, we have:
4x + 15 = 1.50x + 36
4x - 1.50x = 36 - 15
x = 21/2.5
x = 8.4 tacos.
For each pricing to be the cheapest, we have:
4x + 15 = 1.50x + 36
4x - 1.50x = 36 - 15
x = 21/2.5
x = 8.4 tacos.
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Missing information:
The question is incomplete and the complete question is shown in the attached picture.
Two angles of a triangle measure 59° and 63°. If the longest side measures 28 centimeters, find the length of the shortest side.
The length of the shortest side is 30 centimeters.
What is a Triangle?Triangle is defined as a basic polygonal shape of a triangle that has three sides and three interior angles.
Let the angles of the triangle be A, B, and C with side lengths a, b, and c, respectively. We know that the sum of the angles of a triangle is 180 degrees. So, we can find the third angle by subtracting the sum of the given angles from 180:
C = 180 - (59 + 63) = 58 degrees
Now, we can use the Law of Cosines to find the length of the shortest side, a:
a² = b² + c² - 2bc cos(A)
We know that A is the angle opposite the side with length 28 cm, so A = 58 degrees. We also know that B is the angle opposite the unknown side, so B = 180 - (A + C) = 63 degrees.
Substituting the given values into the Law of Cosines, we get:
a² = b² + c² - 2bc cos(A)
a² = b² + 28² - 2b(28) cos(58)
a² = b² + 784 - 56b cos(58)
The sum of the angles of a triangle is 180 degrees to find B in terms of A:
B = 180 - (A + C) = 180 - (58 + 59) = 63 degrees
Substituting B = 63 degrees into the Law of Cosines, we get:
b² = a² + c² - 2ac cos(B)
b² = a² + 28² - 2a(28) cos(63)
b² = a² + 784 - 56a cos(63)
a² = b² + 784 - 56b cos(58) ....(i)
b² = a² + 784 - 56a cos(63) ....(ii)
Subtracting the second equation from the first, we get:
a² - b² = -56b cos(58) + 56a cos(63)
Rearranging and factoring, we get:
(a + b)(a - b) = 56(cos(63)a - cos(58)b)
We can solve for a - b by dividing both sides by a + b:
a - b = 56(cos(63)a - cos(58)b) / (a + b)
Substituting a = 28 (the length of the longest side) and cos(63) and cos(58), we get:
a - b = 3.864
Now, we can use the fact that a + b + c = 180 to solve for b:
a + b + c = 180
28 + b + 59 + 63 = 180
b = 30
Therefore, the length of the shortest side is b = 30 centimeters.
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A container built for transatlantic shipping is constructed in the shape of a right rectangular prism. Its dimensions are 10.5 ft by 7 ft by 10 ft. If the container is entirely full and, on average, its contents weigh 0.24 pounds per cubic foot, find the total weight of the contents. Round your answer to the nearest pound if necessary.
Answer: 3062 pounds
Step-by-step explanation: 10.5x7x10 is 735 and divided by 0.24 is 3062.2 pounds rounded to 3062
would this be h=4 or h=12?
4=h-8
Answer:
H=12
Step-by-step explanation:
12-8=4
hope this helps!!
can someone answer page 3 question 3, page 5 question 3, all of page 6
The answers to the questions involving trigonometry are: 90, BC/AB ÷ BC/AB = 1, g = 6.5, <I = 62 degrees, h= 13.8, 12.0, x = 6.8, x = 66.4, 160.6, The pole = 6.7
What is trigonometrical ratios?Trigonometric ratios are special measurements of a right triangle, defined as the ratios of the sides of a right-angled triangle. There are three common trigonometric ratios: sine, cosine, and tangent
For page 3 question 3,
a) <A + <B = 90 since <C = right angle
b) SinA = BC/AB and CosB = BC/AB
The ratio of the two angles BC/AB ÷ BC/AB = 1
I notice that the ratio of sinA and cosB gives 1
b) The ratio of CosA and SinB will give
BC/AB ÷ BC/AB
= BC/AB * AB/BC = 1
For page 5 number 3
Tan28 = g/i
g/12.2 = tan28
cross multiplying to have
g = 12.2*tan28
g = 12.2 * 0.5317
g = 6.5
b) the angle I is given as 90-28 degrees
<I = 62 degrees
To find the side h we use the Pythagoras theorem
h² = (12.2)² + (6.5)²
h² = 148.84 +42.25
h²= 191.09
h=√191.09
h= 13.8
For page 6
1) Sin42 = x/18
x=18*sin42
x = 18*0.6691
x = 12.0
2) cos28 = 6/x
xcos28 = 6
x = 6/cos28
x [= 6/0.8829
x = 6.8
3) Tan63 = x/34
x = 34*tan63
x= 34*1.9526
x = 66.4
4) Sin50 123/x
xsin50 = 123
x = 123/sin50
x = 123/0.7660
x =160.6
5) Sin57 = P/8
Pole = 8sin57
the pole = 8*0.8387
The pole = 6.7
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uhmmm helppppppp pls lol
Answer:
h=81
Step-by-step explanation:
Dont know how to explain but this is the answer
If a sample includes three individuals with scores of 4, 6, and 8, the estimated population variance is 1) (2 + 0 + 2) / 2 = 2 2) (4 + 0 + 4) / 3 = 2.67 3) (2 + 0 + 2)/3 = 1.33 6 4) (4 + 0 + 4) / 2 - 4
If a sample includes three individuals with scores of 4, 6, and 8, the estimated population variance is (4 + 0 + 4) / 2 - 4. So, correct option is 4.
The estimated population variance formula is the sum of squared deviations from the mean divided by the degrees of freedom. In this case, the degrees of freedom would be n-1, where n is the sample size.
Using the given sample of 4, 6, and 8, we can calculate the sample mean as (4+6+8)/3 = 6.
Then, we calculate the deviations from the mean for each score:
4 - 6 = -2
6 - 6 = 0
8 - 6 = 2
We square each deviation to get 4, 0, and 4. Then, we sum the squared deviations: 4 + 0 + 4 = 8.
Since there are three scores in the sample, the degrees of freedom is 3 - 1 = 2.
Finally, we divide the sum of squared deviations by the degrees of freedom to get the estimated population variance: 8/2 = 4.
Therefore, option 4) (4 + 0 + 4) / 2 = 4 is the correct answer.
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(1) An architect firm uses an average of 60 boxes of copier paper a day. The fim operates 280 days a year. Storage and handling costs for the paper are $30 a year per box, and its costs approximately $60 to order and receive a shipment of paper. (a) What quantity order size would minimize the total annual inventory cost? (b) Determine the minimum total annual inventory cost. (c) The office manager is currently using an order size of 300 boxes. The partners of the firm expect the office to be managed "in a cost-efficient manner." Would you recommend the manager to use your quantity from part (a) rather than 300 boxes? Justify your answer (by determining the total annual inventory cost for 300 boxes):
Part a: What quantity order size would minimize the total annual inventory cost? Total Annual Inventory Cost = Annual Ordering Cost + Annual Carrying Cost At minimum Total Annual Inventory Cost, the formula for the Economic Order Quantity (EOQ) is used. EOQ formula is given below: EOQ = sqrt((2DS)/H)Where, D = Annual DemandS = Ordering cost
The company should place an order for 168 boxes at a time in order to minimize the total annual inventory cost.Part b: Determine the minimum total annual inventory cost.Using the EOQ, the company can calculate the minimum total annual inventory cost. The Total Annual Inventory Cost formula is:Total Annual Inventory Cost = Annual Ordering Cost + Annual Carrying CostAnnual Ordering Cost = (D/EOQ) × S = (16,800/168) × $60 = $6,000Annual Carrying Cost = (EOQ/2) × H = (168/2) × $30 = $2,520Total Annual Inventory Cost = $6,000 + $2,520 = $8,520Therefore, the minimum Total Annual Inventory Cost would be $8,520.Part c: Would you recommend the manager to use your quantity from part (a) rather than 300 boxes? Justify your answer (by determining the total annual inventory cost for 300 boxes)
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Each hot chocolate at Cocoa Land costs $3.25. Chris has $36.99 to buy chocolate and to pay for a music album to listen to while he studies math. The music album costs $9.99. Which inequality can be used to determine how many hot chocolates, h, Chris can buy?
Answer:
Step-by-step explanation:
△KIX can be mapped onto \triangle REM△REM by a rotation. If \text{m}\angle X = 117^{\circ}m∠X=117
∘
and \text{m}\angle I = 2^{\circ}m∠I=2
∘
, find \text{m}\angle Rm∠R.
\text{m}\angle Rm∠R
can
be determined. \text{m}\angle R =m∠R=
The measure of angle R, found through the angle sum property of a triangle and corresponding angles in ΔKIX and ΔREM is m∠R = 61°
What are corresponding angles?Corresponding angles are angles in two congruent or similar triangles, located between a pair of segments in one triangle that are congruent to a pair of segment in the other triangle
The details of the question are;
The transformation that maps triangle ΔKIX unto triangle ΔREM is a rotation.
Please see attached the example drawing of ΔKIX and ΔREM created with MS Excel.
A rotation transformation is a rigid transformation, therefore, the side lengths and shape of triangle ΔKIX is preserved in the image of the triangle, ΔREM
The measure of angle ∠X in triangle ΔKIX is ∠X = 117°
The measure of angle ∠I in ΔKIX is ∠I = 2°
∠K + ∠I + ∠X = 180° (angle sum property of a triangle)
The measure of angle ∠K = 180° - (∠X + ∠I)
Therefore;
m∠K = 180° - (117° + 2°) = 61°
m∠K = 61°
Based on the naming of the triangles ΔKIX and ΔREM, we have;
∠K corresponds to ∠R, ∠I corresponds to ∠E, and ∠X corresponds to angle ∠R, therefore;
∠K ≅ ∠R, ∠I ≅ ∠E, ∠X ≅ ∠R, which by the definition of congruency indicates;
∠K = ∠R, ∠I = ∠E, ∠X = ∠R
m∠R = m∠K = 61°
m∠R = 61°
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• Saphia is organising a conference.
People at the conference will sit at circular tables.
Each table has a diameter of 140 cm.
Each person needs 60 cm around the circumference of the table.
There are 12 of these tables in the conference room.
A total of 90 people will be at the conference.
Are there enough tables in the conference room?
Answer:
No
Step-by-step explanation: