The most effective action that Fatimah can take to reduce the reservoir's amount of water loss is to install an evaporation control system.
What is amount?
Amount is a term used to refer to the quantity or magnitude of something, typically in financial or numerical terms. It can refer to physical items such as money, goods, or services, as well as abstract concepts such as time, distance, or energy. The amount of something is usually determined by measuring, counting, or weighing it.
Evaporation is a major source of water loss in arid regions, as the dry air quickly absorbs the moisture from the reservoir's surface. By installing an evaporation control system, Fatimah can reduce the amount of water lost to evaporation by using a variety of strategies. These strategies can include the use of an impermeable membrane to cover the reservoir's surface, the installation of windbreaks to reduce the speed of the wind over the water, and the use of chemicals to reduce the rate of evaporation. All of these strategies can be used to drastically reduce the amount of water lost to evaporation.
The installation of an evaporation control system can also be relatively inexpensive compared to other solutions. For instance, compared to installing a new water pump system or rerouting water to the reservoir, installing an evaporation control system can be done quickly and at a lower cost. This makes it a more suitable solution for Fatimah's limited budget.
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In a triangle ABC angle A is twice as large as angle B and B is 20 more than angle c. what are the measure of each angles
Answer:
Step-by-step explanation:
catss
Volume of 5in, 9in , 10in Triangular Prism
Answer:
[tex]\mathrm{225\:in\:\right)^3}[/tex]
Step-by-step explanation:
Given:
base = b = 10 in
height = h = 9 in
length = l = 5 in
[tex]\mathrm{Use\:formula}\:\mathrm{V= \dfrac{1}{2}\times\:b\times\:h\times\:l:}[/tex]
[tex]\mathrm{V= \dfrac{1}{2}\times\:10\times\:9\times\:5}[/tex]
[tex]\mathrm{= 225\:in\:\right)^3}[/tex]
Final answer is rounded to 3 decimal places.
Robin was given a $40 monthly allowance. She wants to go to the movies as many times as possible and have at least $12.50 left at the end
of the month to go to a concert. A movie ticket costs $5. Write and solve an inequality to determine how many times Robin can go to the
movies this month. Then interpret the solution.
PLEASE WRITE THE INEQUALITY WITH THE ANSWER AND A SUMMARY OF HOW TO SOLVE IT
Answer:
If Robin was given a $40 monthly allowance. She wants to go to the movies as many times as possible and have at least $12.50 left at the end of the month to go to a concert. A movie ticket costs $5. Then she can go six times to the movies.
Step-by-step explanation:
Two or more expressions with an Equal sign is called as Equation.
Given,
Robin was given a $40 monthly allowance.
She wants to go to the movies as many times as possible and have at least $12.50 left at the end of the month to go to a concert.
The amount spent on movies
40-12.5
$27.5
A movie ticket costs $5.
We need to find how many times can she go to the movies.
To find this we need to divide $27.5 by 5
$27.5/5=5.5
Robin can go 6 times to the movies.
Evaluate the expression 10a - 2b when
a = 2 and b = - 3?
Answer:
26
Step-by-step explanation:
10(2) -2(-3)=20+6=26
Answer:
[tex]\bf 26[/tex]Step-by-step explanation:
[tex]\tt 10a-2b[/tex]
[tex]\tt a=2[/tex]
[tex]\tt b=-3[/tex]
______
[tex]\tt 10\times \:2-2\left(-3\right)[/tex]Simplify: 10×2 = 20
[tex]\tt 20-2x-3[/tex]Simplify: 2×-3= -6
[tex]\tt 20-(-6)[/tex][tex]\tt 20+6[/tex]Simplify:-
[tex]\tt 26[/tex]_____________________
Hope this helps! :)
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Part 1
To the right are the outcomes that are possible when a couple has three children. Assume that boys and girls are equally likely, so that the eight simple events are equally likely. Find the probability that when a couple has three children, there are exactly 0 girls.
1st
2nd
3rd
boy
−
boy
−
boy
boy
−
boy
−
girl
boy
−
girl
−
boy
boy
−
girl
−
girl
girl
−
boy
−
boy
girl
−
boy
−
girl
girl
−
girl
−
boy
girl
−
girl
−
girl
Question content area bottom
Part 1
What is the probability of exactly 0 girls out of three children?
enter your response here (Type an integer or a simplified fraction.)
The probability that when a couple has three children, there are exactly 0 girls is 12.5%
What is mean by Probability?The term probability refers to the likelihood of an event occurring. Probability means possibility. It is a branch of mathematics that deals with the occurrence of a random event. The value is expressed from zero to one.
Calculation of the probability:
Here we assume b for boy, g for girl
Now, the probability conditions are;
g - g - g
g - g - b
g - b - g
g - b - b
b - g - g
b - g - b
b - b - g
b - b - b
Thus, There are 8 outcomes, one of which (b - b - b) with exactly 0 girls.
So, We get;
⇒ 1 ÷ 8
= 0.125
= 12.5%
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How many terms are in this expression? 7p + 6 + r
Jason will receive a series of payments at the beginning of each year for 20 years. The first payment is 100. The subsequent 9 payments increase by 10% from the previous payment. After the 10th payment, each payment decreases by 10% from the previous payment. At an annual effective interest rate of 4%, calculate the present value of these payments at the time of the first payment.
A) 2,078.99
B) 2,118.01
C) 2,164.98
D) 2,193.24
E) 2,516.16
Answer:
2,118.01
Step-by-step explanation:
Find the number of arrangements that can be made by taking 4 letters from the letters of the word addressee.
Answer: The word "addressee" has 8 letters. To find the number of arrangements that can be made by taking 4 letters from these 8 letters, we can use the formula for combinations, which is:
n C r = n! / (r! * (n-r)!)
where n is the total number of items, r is the number of items to be selected, and ! represents the factorial function.
In this case, we want to select 4 letters from the 8 letters in "addressee", so n = 8 and r = 4. Substituting these values into the formula, we get:
8 C 4 = 8! / (4! * (8-4)!)
= (8 * 7 * 6 * 5 * 4 * 3 * 2 * 1) / [(4 * 3 * 2 * 1) * (4 * 3 * 2 * 1)]
= 70
Therefore, there are 70 different arrangements that can be made by taking 4 letters from the letters of the word "addressee".
Step-by-step explanation:
Please help this too
Use the tables of values of f and g to answer the problem.
(g ∘ f)(2)
Answer:
giacsybsc
Step-by-step explanation:
vdgsivetshdvx
find the axis of symmetry for f(x)=x^{2}+12x+31
so since the squared variable is the "x", we're looking at a vertical parabola, and its axis of symmetry will be at the x-coordinate for its vertex, let's find its vertex then
[tex]\textit{vertex of a vertical parabola, using coefficients} \\\\ f(x)=\stackrel{\stackrel{a}{\downarrow }}{1}x^2\stackrel{\stackrel{b}{\downarrow }}{+12}x\stackrel{\stackrel{c}{\downarrow }}{+31} \qquad \qquad \left(-\cfrac{ b}{2 a}~~~~ ,~~~~ c-\cfrac{ b^2}{4 a}\right)[/tex]
[tex]\left(-\cfrac{ 12}{2(1)}~~~~ ,~~~~ 31-\cfrac{ (12)^2}{4(1)}\right) \implies \left( - \cfrac{ 12 }{ 2 }~~,~~31 - \cfrac{ 144 }{ 4 } \right) \\\\\\ \left( -6 ~~~~ ,~~~~ 31 -36 \right)\implies (\stackrel{ x }{-6}~~,~-5)\hspace{5em}\stackrel{ \textit{axis of symmetry} }{x=-6}[/tex]
You pick a card at random
What is P(less than 3)?
Write your answer as a percentage.
Answer:
30% i think
Step-by-step explanation:
Review
Directions: Identify the type of each of the following triangles based on the sides.
Answer:
• Triangle A: Side lengths of 5, 3, and 4. This is an acute triangle, as all three angle measurements are less than 90°.
• Triangle B: Side lengths of 12, 7, and 15. This is an obtuse triangle, as one angle measurement is greater than 90°.
• Triangle C: Side lengths of 8, 8, and 8. This is an equilateral triangle, as all three sides and all three angle measurements are equal
Step-by-step explanation:
how many terms 20 - (4 to the second power divided by 2) has
The number of terms in the expression is 2
How to determine the number of terms in the expressionFrom the question, we have the following:
20 - (4 to the second power divided by 2)
Express properly
so, we have the following representation
20 - (4^2/2)
A term is a mathematical expression that can be added or subtracted to form a larger expression.
For example, in the expression 3x + 2y - 5, each of the three parts (3x, 2y, and -5) is a term.
Using the above definition, we have the terms to be
20 and (4^2/2) i.e. 2 terms
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THE PIC IS ATTACHED NOW PLS ANSWEE
Answer: C
Step-by-step explanation:
A meteorologist reports that the chance of snow is less than 30%. The correct inequality to represent this comparison is s < 30. The variable s represents the likelihood of snow.
Which numbers are solutions of the inequality?
Choose all that apply.
20%
35%
17%
30%
29 and one-half percent%
1.5%
The solutions to the inequality s < 30 are 20%, 17%, 29 and one-half percent (which is equivalent to 29.5%), and 1.5%.
The disparity that best illustrates the phrase "the possibility of snow is less than 30%" is:
s < 30
This implies that the inequality can be solved for any value of s that is less than 30.
We must compare the numbers to 30 and see if they are less than it in order to identify which ones are the answers to the inequality.
The answer is yes because 20% = 0.2 is less than 30%.
It is not a solution because 35% = 0.35 is not less than 30%.
The answer is yes because 17% = 0.17 is less than 30%.
It is not a solution because 30% = 0.3 is not less than 30%.
That is a solution since 29 and a half percent = 0.295 is less than 30%.
The answer is yes because 1.5% = 0.015 is less than 30%.
As a result, the answers to the inequality s 30 are 20%, 17%, 29 and a half percent (or 29.5%), and 1.5 percent.
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What is the total surface area of the prism?
82 sq. cm
12 sq. cm
94 sq. cm
HEPLP WLL MAR BRANLEST
Answer:
12 as. cm that's the answer
solve the value of n 20 = 2 (n - 3)
Answer:
13
Step-by-step explanation:
1. 20/2 = n - 3
2. 10 = n - 3
3. 10 + 3 = n
4. 13 = n
A self-serve car wash charges $5.25 to use its facilities, plus an additional $0.69 for each minute the customer is at the self-serve car wash. If Tiffany was at the car wash for 8 minutes, how much was she charged?
Using linear equations, Tiffany was charged $10.77 for 8 minutes at the self-serve car wash.
What Does It Mean to Solve Linear Equations?Solving a linear equation involves determining the answer to a linear equation with one, two, three, or more variables. The answer to a linear equation is the value or values of the variable(s) that are part of the equation. In the elimination procedure, any coefficient is first made equal, then deleted. After elimination, the equations are solved to provide the other equation.
Given that, the car wash charges $5.25 to use its facilities, plus an additional $0.69 for each minute.
C = 5.25 + 0.69x
For 8 minutes:
C = 5.25 + 0.69(8)
C = $10.77
Hence, Tiffany was charged $10.77 for 8 minutes at the self-serve car wash.
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Fancy Flowers Florist has just received a shipment of 250 red roses. They use 200 of the roses
to decorate for the grand opening of the Historical Museum. What percentage of the red roses
did Fancy Flowers Florist use to decorate for the grand opening at the museum?
A. 60%
B. 70%
C. 80%
D. 90%
The percentage of the red roses did Fancy Flowers Florist use to decorate for the grand opening at the museum is 80%
What is percentage?A percentage is a portion of a whole expressed as a number between 0 and 100 rather than as a fraction.
Given that, a flower shop received a shipment of 250 red roses, they will use 200 out of this for decorating for the grand opening of the Historical Museum,
We need to find the percentage of the red roses used there,
So, the percentage of the red roses used in decoration =
200 / 250 x 100
= 0.8 x 100
= 80%
Hence. the percentage of the red roses did Fancy Flowers Florist use to decorate for the grand opening at the museum is 80%
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Need help with number 80
Answer:
a no
b. no
c.no
d. yes
Step-by-step explanation:
The distance between points A and B is 35 feet, the distance between points B and C is 35 feet, and the distance between points C and D is 80 feet. How wide is the
canyon? Explain your reasoning.
The answer of the question based on distance and width of the canyon is width of the trapezoid is approximately 67.43 feet.
What is Trapezoid?A trapezoid is quadrilateral ( four-sided polygon) that has two parallel sides and two non-parallel sides. The parallel sides are referred to as bases of the trapezoid, while the non-parallel sides are called legs. The distance between two parallel sides is called height or altitude of trapezoid.
The figure in the provided link is a trapezoid with parallel sides AB and CD, and non-parallel sides BC and AD.
Since AB and CD are parallel, we know that the length of the altitude is the same as the distance between them.
Let's call the width of the trapezoid "x". Then, we can use the following equation using the Pythagorean Theorem:
(AC)^2 = (BC)^2 + (AB - CD + 2x)^2
where AC is the diagonal connecting points A and C.
Substituting the given values, we get:
(AC)^2 = (35)^2 + (35 - 80 + 2x)^2
(AC)^2 = 1225 + (2x - 45)^2
(AC)^2 = 1225 + 4x^2 - 180x + 2025
(AC)^2 = 4x^2 - 180x + 3250
Now, we can use the distance formula to find the length of AC:
AC = sqrt[(A - C)^2 + (B - D)^2]
AC = sqrt[(35 + 35)^2 + 80^2]
AC = sqrt[4900 + 6400]
AC = sqrt(11300)
AC = 106.23 feet (rounded to two decimal places)
Substituting the value in equation above, we will get:
(106.23)^2 = 4x^2 - 180x + 3250
11299.77 = 4x^2 - 180x + 3250
4x^2 - 180x + 8049.77 = 0
Solving the quadratic equation using quadratic formula, we will get:
x = [180 ± sqrt(180^2 - 4(4)(8049.77))] / (2(4))
x = [180 ± sqrt(129322.08)] / 8
x = [180 ± 359.44] / 8
We take the positive root, since x represents a length, and we get:
x = (180 + 359.44) / 8
x = 67.43 feet (rounded to two decimal places)
Therefore, the width of the trapezoid is approximately 67.43 feet.
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HELP I NEED IT ASAP PLS ILL GIVE BRAINLIEST TOO!! 100 POINTS!!!
A race car drove around a circular track that was 0.4 mile. If 1 mile = 5,280 feet, what is the radius of the track, in feet? Use π = 3.14 and round to the nearest hundredth.
107.11 feet
214.21 feet
336.31 feet
672.61 feet
Step-by-step explanation:
The circumference of a circle is given by the formula C = 2πr, where C is the circumference and r is the radius. In this case, the circumference of the circular track is 0.4 mile, which is equal to 2112 feet (0.4 x 5280 = 2112).
Therefore, we can write the equation:
2112 = 2πr
Solving for r, we get:
r = 2112 / (2π)
r ≈ 336.31 feet (rounded to the nearest hundredth)
Therefore, the radius of the track, in feet, is approximately 336.31 feet. The closest option to this answer is 336.31 feet.
Answer:
334.31
Step-by-step explanation:
please give brainliest
A farmer sells 6.7 kilograms of pears and apples at the farmer's market. 2 5 of this weight is pears, and the rest is apples. How many kilograms of apples did she sell at the farmer's market?
By performing subtraction we know that the farmer sold 4.2 kilograms of apples in the market.
What is subtraction?One of the four operations used in mathematics, along with addition, multiplication, and division, is subtraction.
Removal of items from a collection is represented by the operation of subtraction.
For instance, in the following image, there are 5 2 peaches, which means that 5 peaches have had 2 removed, leaving a total of 3 peaches.
Subtraction in mathematics is the process of subtracting one integer from another. In other words, the result of subtracting two from five is three. After addition, subtraction is usually the second operation you learn in math class.
So, to find the weight of apples, perform subtraction as follows:
= 6.7 - 2.5
= 4.2 kilograms
Therefore, by performing subtraction we know that the farmer sold 4.2 kilograms of apples in the market.
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You have a portfolio consisting solely of Stock A and Stock B. The portfolio has an expected return of 10.2 percent. Stock A has an expected return of 11.7 percent while Stock B is expected to return 8.3 percent. What is the portfolio weight of Stock A?
The portfolio weight of Stock A is 0.625 for the given situation.
What use do portfolio weights serve?The percentage of a portfolio's investments that are assigned to each asset or security is shown by the portfolio weights. Investors can meet their chosen risk and return objectives by varying the weights of various assets in their portfolios. Portfolio weights are a key component of asset allocation and portfolio optimization methodologies since they are used to determine the expected return and risk of a portfolio.
Let w be the weight (proportion) of Stock A in the portfolio.
The weight of Stock B would be (1-w).
Given that, the portfolio has an expected return of 10.2 percent.
0.102 = w(0.117) + (1-w)(0.083)
w = (0.102 - 0.083)/(0.117 - 0.083) ≈ 0.625
Hence, the portfolio weight of Stock A is 0.625 for the given situation.
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Suppose that a household's monthly water bill (in dollars) is a linear function of the amount of water the household uses (in hundreds of
cubic feet, HCF). When graphed, the function gives a line with a slope of 1.65. See the figure below.
If the monthly cost for 21 HCF is $49.58, what is the monthly cost for 24 HCF?
Monthly cost 49.58
(in dollars)
21
Water usage
(in HCF)
$0
X
5
INIC
The monthly cost for an HCF of 24 will be $39.13.
What is an expression?In mathematics, an expression is a combination of symbols and/or numbers that represents a quantity or a mathematical relationship between quantities. An expression can consist of variables, constants, and operators such as addition, subtraction, multiplication, and division.
Since the monthly water bill is a linear function of the amount of water used, we can use the point-slope form of a linear equation to write an equation for the line. Let y be the monthly cost (in dollars) and x be the amount of water used (in HCF). Then the equation of the line is:
y - 49.58 = 1.65(x - 21)
Simplifying this equation, we get:
y = 1.65x - 13.57
This means that the monthly cost (y) is equal to 1.65 times the amount of water used (x) minus a constant term of $13.57.
To find the monthly cost for 24 HCF, we simply substitute x = 24 into the equation we just found:
y = 1.65(24) - 13.57
y = 39.13
Therefore, the monthly cost for 24 HCF is $39.13.
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I'LL MARK THE BRAINLIEST
The diameter of a circle is 10 3/4 inches.
What is the radius, r, of the circle?
Enter your answer as a mixed number in simplest form by filling in the boxes.
Answer: The radius of the circle is 5 3/8 inches.
Step-by-step explanation:
The radius of the circle is half of the diameter. We can start by converting the mixed number diameter to an improper fraction:
10 3/4 = (10 × 4 + 3)/4 = 43/4
So, the diameter of the circle is 43/4 inches. The radius is half of this, which we can find by dividing by 2:
r = (43/4) ÷ 2 = 43/8
To simplify the fraction, we can divide the numerator and denominator by their greatest common factor (GCF), which is 1:
r = 43/8 = 5 3/8
Therefore, the radius of the circle is 5 3/8 inches.
Answer:5 3/4
Step-by-step explanation:
10 3/4 * 1/2
1/2 * 43/4 = 43/8
8/43=5 3/4
please help.
a helicopter hovers 1400 feet above a small island. the figure shows that the angle of the depression from the to the point P is 30 degrees. how far off the coast, to the nearest foot, is the island?
Step-by-step explanation:
this (outside) angle of depression is equal to the inner angle at P.
because the line of sight from the helicopter to P is like the diagonal in a rectangle spring the rectangle into 2 equal right-angled triangles (one of just rotated by 180° of the other).
so, the angle at P is 30°.
1400 ft = sin(30)×radius
radius being the line of sight from the helicopter to P.
we need to calculate the radius, because we need it for d :
d = cos(30)×radius
radius = 1400/sin(30) = 2800 ft
d = cos(30)×2800 = 2,424.871131... ft ≈ 2,425 ft
I’ll give BRAINLIEST if correct as well as 5star ratings
Given the polynomial 9x^2y^6 - 25x^4y^8 rewrite as a product of polynomials
Answer:
The given polynomial already has two terms that can be factored out:
9x^2y^6 - 25x^4y^8 = (3xy^3)^2 - (5x^2y^4)^2
Now we have a difference of squares:
= (3xy^3 - 5x^2y^4)(3xy^3 + 5x^2y^4)
Therefore, 9x^2y^6 - 25x^4y^8 can be rewritten as the product of (3xy^3 - 5x^2y^4) and (3xy^3 + 5x^2y^4).
Answer: The answer would be (3xy^3-5x^2y^4)(3xy^3+5^2y^4)
(C)
Step-by-step explanation: Cant explain how to but for a quick answer it is C, and you can check the image for proof.
Dividing integers. Dan's scores for speed this season are -1, -3, 1, -1, -2, 0. What is his average speed score for the season? (The average is the sum of the points divided by the number of scores)
Dan's average speed score for the season is -1.
What is the arithmetic operations?
Arithmetic operations are mathematical operations that involve manipulating numbers to perform calculations. The four basic arithmetic operations are addition, subtraction, multiplication, and division.
To find Dan's average speed score for the season, we need to add up all his scores and divide by the total number of scores. We can do this as follows:
-1 + (-3) + 1 + (-1) + (-2) + 0 = -6
Dan's total score for the season is -6. To find his average score, we need to divide this total by the number of scores, which is 6 in this case:
-6 / 6 = -1
Hence, Dan's average speed score for the season is -1.
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