The surface area of the pyramid is given by the equation A = 170.4 inches²
What is the surface area of the pyramid?The total surface area is the summation of the areas of the base and the three other sides. A = B + ( 1/2 ) ( P x h ), where B is the area of the base of the pyramid, P is the perimeter of the base, and h is the slant height of the pyramid
Surface Area of Pyramid = B + ( 1/2 ) ( P x h )
Given data ,
Let the surface area of the pyramid be represented as A
Now , the equation will be
The slant height of the pyramid h = 6 inches
The side of the equilateral triangle = 12 inches
So , the perimeter of the triangle = 3 x side length
Substituting the values in the equation , we get
The perimeter of the triangle = 36 inches
The area of the base = 62.4 inches²
So , Surface Area of Pyramid = B + ( 1/2 ) ( P x h )
Substituting the values in the equation , we get
Surface Area of Pyramid = 62.4 + ( 1/2 ) ( 36 x 6 )
On simplifying the equation , we get
Surface Area of Pyramid = 62.4 + ( 108 )
Surface Area of Pyramid = 170.4 inches²
Hence , the surface area of pyramid is 170.4 inches²
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Canal Industries has provided the following information:
Net income, $260,000
Preferred shares issued, 6,200
Weighted average number of shares of common stock issued, 24,200
Cash dividends declared and paid on common stock, $32,000
Market price per share, $38
Weighted average number of treasury shares of common stock, 4,200
What is Canal's price/earnings ratio?
The Canal's price/earnings ratio is 2.92.
To calculate Canal's price/earnings ratio, we need to find the earnings per share (EPS) first. The EPS can be calculated by dividing the net income by the weighted average number of common shares outstanding.
The weighted average number of common shares outstanding can be calculated as follows:
Weighted average number of common shares outstanding = Total number of common shares - Weighted average number of treasury shares
Weighted average number of common shares outstanding = 24,200 - 4,200 = 20,000
EPS = Net income / Weighted average number of common shares outstanding
EPS = $260,000 / 20,000 = $13
Finally, the price/earnings ratio can be calculated by dividing the market price per share by the EPS:
Price/earnings ratio = Market price per share / EPS
Price/earnings ratio = $38 / $13 = 2.92
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Fred decided to use some change to buy some brownies that he wanted for dessert. After
pulling the coins from his pocket, Fred paid with 3 quarters, 4 dimes, 2 nickels, and 1
penny. How much money did Fred spend on brownies?
Answer:
Fred spent $3.18 on brownies.
Let A denote the event of placing a $1 straight bet on a certain lottery and winning. Suppose that, for this particular lottery, there are 8,100 different ways that you can select the four digits (with repetition allowed) in this lottery, and only one of those four-digit numbers will be the winner. What is the value of P(A)? What is the value of P(A)?
The probability of the winner is 1/8100. And the probability of losing is 8099/8100.
What is probability?Its fundamental concept is that someone will nearly surely occur. The proportion of positive events in comparison to the total of occurrences.
Then the probability is given as,
P = (Favorable event) / (Total event)
Let A signify the occasion of putting down a $1 straight bet on a specific lottery and winning. Assume that, for this specific lottery, there are 8,100 unique ways that you can choose the four digits (with reiteration permitted) in this lottery, and only one of those four-digit numbers will be the victor.
Then the probability of the winner is given as,
P(A) = 1 / 8,100
The probability of losing is given as,
Q(A) = 1 - P(A)
Q(A) = 1 - 1/8100
Q(A) = 8,099 / 8,100
The probability of the winner is 1/8100. And the probability of losing is 8099/8100.
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FLUENCY AND SKILLS PRACTICE
Lesson 21 Session 2
Solving One-Variable Addition Equations
Solve each equation for the unknown. The answers are mixed up at the bottom.
of the page. Cross out the answers as you complete the problems.
What is d plus 3.2 equals 6.3 minus 2.5 and what’s 25 plus k plus 4(1/4) equals 37
The solution for the One-Variable Addition Equations is,
1: d = 0.6, 2: k = 11, and 3: y = 3.
What is a linear equation?When an algebraic equation is graphed, it always results in a straight line since each term in a linear equation has an exponent of 1. For this reason, it is referred to as a "linear equation."
There are both one-variable and two-variable linear equations.
Given 1: d + 3.2 = 6.3 - 2.5
subtract 3.2 from both sides
d = 6.3 - 2.5 - 3.2
d = 0.6
2: 25 + k + 4(1/4) = 37
divide 4/4 = 1
25 + k + 1 = 37
k = 37 - 26
k = 11
3: 4(1/2) + y = 10(1/2)
so 4/2 = 2 and 10/2 = 5
2 + y = 5
y = 3
Hence d = 0.6, k = 11, and y = 3.
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number 6 only please help
Answer: 1
_
32
Step-by-step explanation: because the are skip count and adding the number every single time .
Model with Mathematics Jonathan uses this
area model to show the product of two mixed
numbers. What equation models the product?
The equation that models the product is 5 × 5 = 25
Numerical equation:In mathematics, a numerical expression is a combination of numbers or integers combined using mathematical operators like addition, subtraction, multiplication, division, etc. In this, we don't use variables like x, y, etc., or any unknown quantity.
Here we have
Jonathan uses the area model to show the product of two mixed numbers
The equation that models the product can be formed as follows
Here number of units along length = 5 units
Number of units along breadth = 5 units
Area = 5 × 5 = 25
Therefore,
The equation that models the product is 5 × 5 = 25
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You have $2,000 in your savings account that earns interest at a rate of 8% for 5 years. What is the amount of interest you would earn? *Remember, I = P x R x T
Answer:
$2938.66
Step-by-step explanation:
2000x1.08(to the power of 5) = 2938.656154
rounded to 2s.f is $2938.66
I need to find the domain and range
The domain and range are x >= 3 and y >= 0
How to find the domain and rangeFrom the question, we have the following parameters that can be used in our computation:
The graph
The domain is the set of the input values
On the graph, we have
Input values start from x = 3 and increases
So, the domain is x >= 3
The range is the set of the output values
On the graph, we have
output values start from y = 0 and increases
So, the range is y >= 0
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A paper mill cuts posterboards that are 36 inches long a posterboard is acceptable if the percent error of its length is less than one. 5% what is the range of acceptable length show your work
Answer:
The range of acceptable length is between 35.28 inches and 36.72 inches.
To calculate the range of acceptable length:
Lower bound: 36 in. - (36 in. x 0.05) = 35.28 in.
Upper bound: 36 in. + (36 in. x 0.05) = 36.72 in.
cuanto es 3/8 de 1568
Answer:
588
Step-by-step explanation:
the williams 1/3 of their total monthly income for rent and 1/4 for food. what fraction is remains for other expenses each month?
Answer:
5/12
Step-by-step explanation:
Find the LCM for denominators 3 and 4, this would be 12.
[tex]\frac{1*3}{4*3} = \frac{3}{12}[/tex]
[tex]\frac{1*4}{3*4} = \frac{4}{12}[/tex]
Add both fractions together:
3/12 + 4/12 = 7/12
Subtract 7 from 12 to find the remaining amount to make 12:
12 - 7 = 5
Therefore, the fraction that remains for other expenses is [5/12]
25) Peter cut a piece of lumber 9 5/6 feet long from a piece that was 15 feet long. How much
of the lumber was left?
31/6 or 5.167 feet of lumber was left.
What are mathematical operations?The term "operation" in mathematics refers to the process of computing a value utilizing operands and a math operator. For the specified operands or integers, the math operator's symbol has predetermined rules that must be followed. In mathematics, there are five basic operations: addition, subtraction, multiplication, division, and modular forms.
Given, Peter cut a piece of lumber 9 5/6 feet long from a piece that was 15 feet long.
Since the total length of wood is 15 feet
Thus,
The remaining wood = 15 - (9 5/6)
The remaining wood = 6 - 5/6
The remaining wood = 31/6
therefore, 31/6 or 5.167 feet of the lumber was left.
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PLEASE HELP !!!!!!!!!!!!!!!
Josiah kept track of how many songs of each genre were played in an hour from his MP3 player. The counts are displayed in the table below. He has a total of 1,500 songs on his player. Josiah predicted the number of rock songs on his MP3 player to be 300 songs. Which statements about his solution are true? Select three choices. Josiah’s Music Sample 1 Sample 2 R & B 5 R & B 4 Pop 4 Pop 3 Classical 3 Classical 5 Jazz 2 Jazz 4 Rock 6 Rock 4 Josiah’s work: StartFraction 10 over 20 EndFraction = StartFraction x over 1,500 EndFraction. StartFraction 10 times 30 over 20 times 30 EndFraction = StartFraction x over 1,500 EndFraction. 300 = x. He should have found the average of the number of rock songs by averaging 4 and 6 to get 5. He did not multiply the numerator and denominator by the correct number to equal 1,500. His answer will be one-half of what he got because he did not divide 10 by 2 when setting up the proportion. He can only solve the proportion by multiplying the numerator and denominator by a common multiple. He should have multiplied the numerator and denominator by 75, not 30, because 20 times 75 = 1,500.
The three statements about his solution that are true include the following:
1. He should have found the average of the number of rock songs by averaging 4 and 6 to get 5.
2. He did not multiply the numerator and denominator by the correct number to equal 1,500.
5. He should have multiplied the numerator and denominator by 75, not 30, because 20 × 75 = 1,500.
How to determine the true solutions?Based on the information provided, a mathematical expression which models the number of songs of each genre on Josiah's MP3 player to be 300 songs:
here, we have,
10/20 = x/1500
Multiplying the mathematical expression by 75, we have the following:
75 × (10/20) = x/1,500
750/1500 = x/1500
1,500x = (750 × 1,500)
x = (750 × 1,500)/1,500
x = 750.
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The baker made a batch of chocolate chip, oatmeal raisin, and sugar cookies. If P(chocolate chip) = 0.25, interpret the likelihood of randomly selecting a chocolate chip cookie from the batch.
Equally likely and unlikely
Likely
Unlikely
This value is not possible to represent probability of a chance event.
The likelihood of randomly selecting a chocolate chip cookie from the batch is unlikely
How to determine the likelihoodFrom the question, we have the following parameters that can be used in our computation:
P(chocolate chip) = 0.25
Probability values less than 0.5 are unlikely
0.25 is less than 0.5
This means that the likelihood is unlikely
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Complete the equation for the line perpendicular to g(x) = 4x + 3 and passing
through the point (7,3)
y =
Two lines that are perpendicular to one another have a slope product that is negative one. If m1 and m2 are the slopes of the two lines, then m1.m2 = -1.
What is meant by line perpendicular?Many perpendicular lines can be seen in the actual world. Examples include the edges of a set square, a clock's arms during particular times of day, the corners of a blackboard, a window, and the Red Cross emblem. Right angles are formed when two perpendicular lines cross. Examine the slopes of the equations in order to determine whether they are perpendicular. Perpendicular lines' slopes are their opposite reciprocals.By comparing the equation of the line with y = mx + c, where m is the line's slope and c is its y-intercept, it is now possible to determine the slope of line y = 4x + 3.As a result, we may state that m1 = 4, which is the slope of this line.
As a result, m2 = -1/4 is the slope of the line perpendicular to this line.
Now, the 2nd line's general equation can be expressed as
y = (-1/4)x + c —— 1)
Since point (-12,4) is located on this line, we may solve for c by substituting y = -12 and x = 4 in the equation above.
We may finish the equation for the line perpendicular to the line y = 4x+3 once we know the value of c.
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In traveling across flat land, you notice a mountain directly in front of you. Its angle of elevation (to the peak) is 3.5°. After you drive x = 11 miles closer to the mountain, the angle of elevation is 9°. Approximate the height of the mountain. (Round your answer to one decimal place.)
Answer:
Below
Step-by-step explanation:
See diagram
.158384 = height/x <====== x = height/.15838
.061162 = height /(11+x) <====sub in x from above into here
.061162 = height /(11+height/.158384) solve for height
.672789 + .386163 height = height
height = 1.1 mi high
this graph shows data related to a company's stock price and time. which type of function best models data? A. a linear function with a positive slope
B. a square root function
C. a quadratic function with a negative value of a
D. a quadratic function with a positive value of a
Answer:
C. a quadratic function with a negative value of a
Step-by-step explanation:
It is likely that a quadratic function with a negative value of a would be the best model for this data, as it would represent a parabolic shape that can accommodate a downward trend, followed by an upward trend, in the stock price. The value of "a" determines the direction of the parabola, with a negative value resulting in a downward-facing parabola, which is appropriate for a stock price that starts low and increases over time. This type of function would provide a good fit for the data, especially if there are fluctuations or ups and downs in the stock price over time.
solve and graph the inequality 3x < 13
The solution of the inequality 3x < 13 is x < 4.33.
None of the given option is correct.
What is an inequality?In mathematics, "inequality" refers to a relationship between two expressions or values that are not equal to each other. To solve the inequality, you may multiply or divide each side by the same positive number, add the same amount to each side, take the same amount away from each side, and more. You must flip the inequality sign if you multiply or divide either side by a negative number.
Given:
An inequality,
3x < 13.
Simplifying,
x < 4.33
The graph is given in the attached image.
Therefore, the solution is x < 4.33.
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What is the equation of the line which has a gradient of -2 and passes through the point (1, 7)
The equation of line is y = -2x + 9 , where the slope is m = -2
What is an Equation of a line?The equation of a line is expressed as y = mx + b where m is the slope and b is the y-intercept
And y - y₁ = m ( x - x₁ )
y = y-coordinate of second point
y₁ = y-coordinate of point one
m = slope
x = x-coordinate of second point
x₁ = x-coordinate of point one
The slope m = ( y₂ - y₁ ) / ( x₂ - x₁ )
Given data ,
Let the equation of line be represented as A
Now , the value of A is
Let the point be represented as P ( 1 , 7 )
Let the slope of the line be m = -2
And , equation of a line is expressed as y = mx + b where m is the slope and b is the y-intercept
Substituting the values in the equation , we get
y - 7 = -2 ( x - 1 )
On simplifying the equation , we get
y - 7 = -2x + 2
Adding 7 on both sides of the equation , we get
y = -2x + 9
Hence , the equation of line is y = -2x + 9
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eigen values of A= [1 2 1
0 2 1
0 0 3]
The eigen values of matrix A [tex]\left[\begin{array}{ccc}1&2&1\\0&2&1\\0&0&3\end{array}\right][/tex] are respectively, 1, 2, 3
What are eigen values?In mathematics, the eigen values are characteristic roots of the equation
| A - λI |,
where, A is matrix and λ is eigen value of the matrix
Properties of matrix,
1. Sum of diagonal elements = Sum of eigen values
2. Determinant of matrix = Product of eigen values
Given that,
Matrix A = [tex]\left[\begin{array}{ccc}1&2&1\\0&2&1\\0&0&3\end{array}\right][/tex]
The eigen values of A = ?
It is known that,
For the upper and lower triangular matrix, eigen values of the matrix are diagonal elements,
given matrix is, upper triangular,
Diagonal elements are 1, 2, 3
So, The eigen values will be 1, 2, 3
Thus, the eigen values are 1, 2, 3
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Which set of equivalent fractions can be used when adding 7/8 and 5/12 ? Select three answer’s
The fraction equivalent of 7/8 + 5/12 is 31/24
What is a fraction in math?A fraction is a part of a whole. In arithmetic, the number is expressed as a quotient, in which the numerator is divided by the denominator. In a simple fraction, both are integers. A complex fraction has a fraction in the numerator or denominator. In a proper fraction, the numerator is less than the denominator.
Given here: Two fractions 7/8 and 5/12
Now sum of the two fractions are 7/8+5/12
We know When two or more fractions with different denominators are added together, then we cannot the numerators directly. Thus Make the denominators of the fractions same, by finding the LCM of denominators and rationalising them with LCM(8,12)=24
Thus, 7/8+5/12= 21+10 /24
= 31/24
Hence, The fraction equivalent of 7/8 + 5/12 is 31/24
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PLEASE HELP QUICKKKK
Answer:
Step-by-step explanation:
If 3<y<7 then,
0 < 14-2y < 8
14 - 2(3) = 8
14 - 2(7) = 0
Solve the following inequality: |2x+5|<2−x
Step-by-step explanation:
To solve the inequality |2x + 5| < 2 - x, we need to split it into two cases:
When 2x + 5 > 0:
In this case, the absolute value is positive, so we can simplify the inequality as follows:
2x + 5 < 2 - x
Expanding the left side:
3x + 5 < 2
Subtracting 5 from both sides:
3x < -3
Dividing both sides by 3:
x < -1
So the solution for this case is x < -1.
When 2x + 5 < 0:
In this case, the absolute value is negative, so we can simplify the inequality as follows:
(2x + 5) < 2 - x
Expanding the left side:
-2x - 5 < 2 - x
Adding x to both sides:
-2x - 5 + x < 2
Combining like terms:
-x - 5 < 2
Adding 5 to both sides:
-x < 7
Dividing both sides by -1:
x > -7
So the solution for this case is x > -7.
Taking the union of the two solutions, we get:
-7 < x < -1.
This means that x is between -7 and -1, excluding -7 and -1.
Find the maximum value of the function z=5x+3y subject to the following constraints.
x≥2
y22
6x+7y≤68
The maximum value of the function z = 5x + 3y subjected to the constraints is given as follows:
48.1665.
How to obtain the maximum value of the function?The function for this problem is defined as follows:
z = 5x + 3y.
The constraints are given as follows:
x ≥ 2.y ≥ 3.6x + 7y ≤ 68.x has a higher multiplier than y, hence the value of y should be minimized to obtain the maximum value, hence:
y = 3.
Then the value of x is obtained as follows:
6x + 7(3) = 68
6x = 47
x = 7.8333.
Then the maximum value of the function is given as follows:
z = 5(7.8333) + 3(3)
z = 48.1665.
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Suppose you plan to buy many blank compact disks. You check price lists and find out that
if you buy 100 CDs or fewer you pay $0.74 each. However, if you buy over 100 CDs the pricedrops to $0.69 for each additional CD up to 300.
(a)Write a function that describes the cost C(n) of n number of CDs purchased.
(b)What is the cost of 53 CDs?
(c)What is the cost for 201 CDs?
Answer:
a) C(n) = 0.74 * min(n, 100) + 0.69 * max(n - 100, 0)
b) 39.22
c) 143.69
Step-by-step explanation:
(a) We can write a piecewise function to describe the cost C(n) of n CDs purchased:
C(n) = 0.74 * min(n, 100) + 0.69 * max(n - 100, 0)
(b) The cost of 53 CDs is:
C(53) = 0.74 * min(53, 100) + 0.69 * max(53 - 100, 0) = 0.74 * 53 = 39.22
(c) The cost for 201 CDs is:
C(201) = 0.74 * min(201, 100) + 0.69 * max(201 - 100, 0) = 0.74 * 100 + 0.69 * 101 = 74 + 69.69 = 143.69
7/3 four different ways
7/3 in four different ways is 7/12
What is division?Division is the opposite of multiplication. If 3 groups of 4 make 12 in multiplication, 12 divided into 3 equal groups give 4 in each group in division. The main goal of dividing is to see how many equal groups are formed or how many are in each group when sharing fairly.
If 100 apples are to be shared by 20 girls equally. The number of apple each girl will get is 100/20 = 5 apples each.
Similarly to put 7/3 in four different ways we have to divide 7/3 by 4
7/3 ÷ 4 = 7/3 × 1/4
= 7/12
therefore 7/12 of the four places will give 7/3
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What is the value of x?
Can someone draw on the parallelogram and explain to me how it's solved in detail?
I want step by step explanations.
The value of x in the parallelogram is calculated to be 11
How to find the value of xThe value of x is solved using the property of a parallelogram which says that the opposite angles are equal
Applying this mathematically gives
7x - 2 = 75
collecting like terms
7x = 75 + 2
7x = 77
Isolating x by dividing through by 7
7x / 7 = 77 / 7
x = 11
so we found the value of x to be 11
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You would like to have $500,000 when you retire in 30 years. How much should you invest each quarter if you can earn a rate of 6.6% compounded quarterly? a) How much should you deposit each quarter? b) How much total money will you put into the account? c) How much total interest will you earn?
If you would like to have $500,000 when you retire in 30 years.
a. Amount earned $2,322.76.
b. Total money $2,322.76
c. Total interest earned $225,268.80
How to find the amount earned?a) To calculate the amount you need to deposit each quarter to reach $500,000 in 30 years, you can use the formula:
P = A / (1 + r/n)^(nt)
P = $500,000 / (1 + 0.066/4)^(4 * 30)
P = $2,322.76
b) Total money
Total money = $2,322.76 * 4 quarters/year * 30 years
Total money = $2,322.76
c) Total interest earned
Total interest earned = $274,731.20 - $500,000
Total interest earned = $225,268.80
Therefore the amount earned is $2,322.76.
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What's the measurement of angle B?
Answer:
121
Step-by-step explanation:
The formula for calculating the sum of interior angles is ( n − 2 ) × 180
so you have 5 sides n=5
so total is 3*180 = 540
there are 3 right angles = 3/90 = 270
so 540-270 = 270 = angle B+ angle C
so 6x+1 +8x-11 =270
14x-10 = 270
14 x =280
x=20
B =6x+1 =121