Answer: C) 30 units
We can solve this problem by adding all of the sides that we know the length of. By counting the units of the vertical and horizontal sides, we get 20 units. Then, to find the length of the diagonal side, we can use the pythagorean theorem. We can form an imaginary triangle with the diagonal side as the hypotenuse. The lengths of the bases are 6 and 8. Then we can use the formula for pythagorean theorem to find the length of the hypotenuse, as follows:
6^2 + 8^2 = c^2
36 + 64 = c^2
100 = c^2
c = 10
Then we can add this length to our earlier length of 20 units to find the total perimeter of the quadrilateral.
Mrs. Everett is shopping for school supplies with her children. Rose selected 3 one-inch binders and 1 two-inch binder, which cost a total of $23. Judy selected 5 one-inch binders and 3 two-inch binders, which cost a total of $49. How much does each size of binder cost?
We define the following variables:
• x = cost of one-inch blinders,
,• y = cost of two-inch blinders.
From the statement of the problem, we know that:
• Rose selected 3 one-inch blinders and 1 two-inch blinder, which cost a total of $23, so we have that:
\(3x+y=23,\)• Judy selected 5 one-inch blinders and 3 two-inch blinders, which cost a total of $49, so we have that:
\(5x+3y=49.\)We have the following system of equations:
\(\begin{gathered} 3x+y=23, \\ 5x+3y=49. \end{gathered}\)We must solve the system of equations using the elimination method, where you either add or subtract the equations to get an equation in one variable.
1) We multiply the first equation by 3, and we have:
\(\begin{gathered} 9x+3y=69, \\ 5x+3y=49. \end{gathered}\)2) Now, we subtract the second equation to the first equation:
\(\begin{gathered} (9x+3y)-(5x+3y)=69-49. \\ 4x=20, \\ x=\frac{20}{4}=5. \end{gathered}\)3) Replacing the value x = 5 in the second equation, and solving for y we get:
\(\begin{gathered} 5\cdot5+3y=49, \\ 25+3y=49, \\ 3y=49-25, \\ 3y=24, \\ y=\frac{24}{3}=8. \end{gathered}\)We have found that:
\(\begin{gathered} x=5, \\ y=8. \end{gathered}\)Answer
A one-inch binder costs $5, and a two-inch binder costs $8.
85% of the eighth graders are going on the class trip. Which decimals are equivalent to 85%?
(2 answered question)
answer choices:
8.5 0.850
0.85 85.0
8500
The factored form of 5 x squared minus 18 x minus 8 is __________
The factored form is (5x+2)(x-4).
What is factorization?
A number, matrix, or polynomial may be broken up or decomposed into factors that, when multiplied together, produce the original number, matrix, etc. This process is known as factorization or factoring.
Here, we have
Given: 5 x squared minus 18 x minus 8
we have to find the factored form.
= 5x² - 18x - 8
= 5x² - 20x + 2x - 8
= 5x(x-4) + 2(x-4)
= (5x+2)(x-4)
Hence, the factored form is (5x+2)(x-4).
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Find a and b using the factor theorem.
\(f(x)=x^3+ax^2+bx-12\) has factor \((x-1), (x+1)\)
The values of a and b using the factor theorem for the polynomial f(x), we set f(1) and f(-1) equal to zero. Solving the resulting system of equations, we find that a = 12 and b = -1.
To find the values of a and b using the factor theorem, we need to use the given factors (x - 1) and (x + 1) and the fact that they are roots of the polynomial f(x).
The factor theorem states that if (x - c) is a factor of a polynomial, then f(c) = 0. Therefore, we can set x = 1 and x = -1 in the polynomial f(x) to get two equations.
First, let's substitute x = 1 into f(x):
f(1) = (1)^3 + a(1)^2 + b(1) - 12
f(1) = 1 + a + b - 12
Next, let's substitute x = -1 into f(x):
f(-1) = (-1)^3 + a(-1)^2 + b(-1) - 12
f(-1) = -1 + a - b - 12
Since (x - 1) and (x + 1) are factors, f(1) and f(-1) must equal zero. Therefore, we can set the two equations equal to zero and solve for a and b:
1 + a + b - 12 = 0
-1 + a - b - 12 = 0
Rearraning the equations, we have:
a + b = 11
a - b = 13
Now, we can solve this system of equations. Adding the two equations, we get:
2a = 24
a = 12
Substituting the value of a into one of the equations, we find:
12 - b = 13
b = -1
Therefore, the values of a and b are 12 and -1 respectively.
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What is eulers identity derivation
Hello friend! Hope this helps!
Euler's formula is eⁱˣ=cos(x)+i⋅sin(x), and Euler's Identity is e^(iπ)+1=0. See how these are obtained from the Maclaurin series of cos(x), sin(x), and eˣ.
Simplify
7^8x 7^3x 7^4
———————-
7^9x 7^5
Answer:
7
Step-by-step explanation:
\(a^{m}*a^{n}=a^{m+n}\\\\\\\dfrac{a^{m}}{a^{n}}=a^{m-n}\\\\\\\dfrac{7^{8}*7^{3}*7^{4}}{7^{9}*7^{5}}=\dfrac{7^{8+3+4}}{7^{9+5}}\\\\=\dfrac{7^{15}}{7^{14}}\\\\\\=7^{15-14}=7^{1}\\\\= 7\)
Answer:
7^1
Step-by-step explanation:
since all the bases are same, we're going to use the law (a^m × a^n = a^m+n)
8+3+4= 15, hence, it's 7^15
we'll apply the same law for the denominator, 9+5= 14, so we'll get 7^15 ÷ 7^14
next we're gonna use the law (a^m ÷ a^n = a^m-n where m>n)
15-14 = 1
so our final answer is 7^1
5/8 x 3 1/4 using cancellation
Answer: 65/32
Step-by-step explanation:
A fair die has 12 sides and they are labeled 1, 2, 3, …, 12. All answers should be in fraction form.
What is the probability of rolling the die and it lands with the 3 face on top?
What is the probability of rolling the die and it lands with the 3 or a 7 face on top?
What is the probability of rolling the die and it lands with a 15 face on top?
The probability of rolling the dice and having the three faces land on top is 1/4.
What is probability?The probability of an occurrence is a number used in science to describe how likely it is that the event will take place.
In terms of percentage notation, it is expressed as a number between 0 and 1, or between 0% and 100%.
The higher the likelihood, the more likely it is that the event will take place.
The probability of an event can be calculated using the following formula.
Probability(Event) = Positive Results/Total Results = x/n. In order to better grasp probability, let's look at a straightforward application.
So, we are aware of the formula:
P(E) = Favourable events/Total events
Now, substitute the values and calculate as follows:
P(E) = Favourable events/Total events
P(E) = 3/12
P(E) = 1/4
Therefore, the probability of rolling the dice and having the three faces land on top is 1/4.
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Complete question:
A fair die has 12 sides and they are labeled 1, 2, 3, …, 12. What is the probability of rolling the die and it lands with the 3 faces on top?
Jerry started doing sit-ups every day. The first day he did 16 sit-ups. Every day after that he did 4 more sit-
ups than he had done the previous day. Today Jerry did 32 sit-ups. Enter an equation that could be solved
to find the number of days Jerry has been doing sit-ups, not counting the first day.
The equation
doing sit-ups.
can help find the number of days Jerry has been
Answer:
16+(4*x)=32
Step-by-step explanation:
x is equal to the number of days he did sit ups. You can solve this by solving for x.
Click and drag like terms onto each other to simplify fully.3+7x-4-4
The given expression is
3 + 7x - 4 - 4
The constants are like terms. The only different term is the 7x. Thus, by dragging like terms onto each other, it becomes
7x - 4 - 4 + 3
= 7x - 5
Given: ∠A ≅∠D, ∠B ≅∠E This is 2 seperate triangles
ABC is one triangle and DEF is a different triangle
We are asked to determine the value of "x". Since we have that:
\(\begin{gathered} ∠A≅∠D, \\ ∠B≅∠E \end{gathered}\)This means that triangles ABC and DEF are similar and therefore, corresponding sides are in the same proportion as each other. Therefore, we can use the following relationship:
\(\frac{AB}{DE}=\frac{BC}{EF}\)Substituting the values we get:
\(\frac{3x}{3}=\frac{30}{5}\)Simplifying the fractions:
\(x=6\)Therefore, the value of "x" is 6.
3. Simplify the expression below.
√-100-2√√-16
A. -12i
B. -2i
C. 12i
D. 2i
Question Jo Agri-Small Business limited expenses on petrol for their fleet is R 4850,00 at the end of September and they have a balance of R106 360,00 remaining in their account. The company has used 25% of its September income on Salanes, 11% on electricity, rates and taxes, and 42% of the remaining on Insurance and investments. The total income and expenditure in September are g. income is R193.236,00 and expenditure is R. 4.850,00 b. income is R 106360,00 and expenditure is 2299 596, 00 c. income is R106 360,00 and expenditure is R 4850,00 d Income is R299596,00 and expenditure is R193 236,00
The total income and expenditure of Agri-small business limited in September is R 299596 and expenditure is R 193236.
How to find the Expense?We have to find the total income and expenditure in September.
The equation for insurance is mathematically given as :
Insurance = 42% of the balance
Insurance=0.42*0.64A
Insurance=0.2688A.
Total expenditure after all other expenditures = 0.64A-0.2688A
Total expenditures after all other expenditures = 0.3712A.
Total expenditures after all other expenditures is as 111210 (106360 +4850)
Equating both the equation and value:
111210 = 3712 A
A = 299596
Thus The total income is 299596.
Therefore the calculation of expense is given as:
Expense=0.25A+0.11A+0.2688A+4850
Expense=0.6288A+4850
=0.6288*299596+4850
=193236
The expense is 193236.
Hence, the total income and expenditure in September are "Income is R 299596 and expenditure is R 193236.
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According to the graph, a student who studies 10 hours per week should earn a score of about how much?
What is a good practice to remember when adding transitions to a presentation?
A good practice to remember when adding transitions to a presentation is to ensure that they are purposeful, consistent, and enhance the overall flow of the presentation.
Purposeful: Use transitions to guide the audience through your key points and ideas, making sure they complement the content and contribute to the overall message.
Consistent: Maintain a consistent style of transitions throughout your presentation to maintain a cohesive look and feel. Avoid using too many different types of transitions, as this may be distracting.
Enhance flow: Transitions should help create a smooth flow between slides and ideas, making it easy for the audience to follow your presentation. Avoid using abrupt or overly flashy transitions that may interrupt the natural progression of your content.
finally, Test your presentation with the transitions to make sure they enhance the overall flow and comprehension of your message.
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(x+1) (x-5)=16 formula cuadratica brainly
The calculated value of x in the equation (x + 1) (x - 5) = 16 is 7
From the question, we have the following parameters that can be used in our computation:
(x + 1) (x - 5) = 16
The above expression is the product of two factors
(x + 1) and (x - 5)
And the result is 16
Express 16 as 8 * 2
So, we have
(x + 1) (x - 5) = 8 * 2
By comparison, we have
x + 1 = 8 and x - 5 = 2
When evaluated, we have
x = 7 and x = 7
This means that the value of x in the equation is 7
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Graph that line with slope -1 passing through the point (-2,4)
Answer:
To graph the line with slope -1 passing through the point (-2,4), we can use the point-slope form of the equation of a line, which is:
y - y1 = m(x - x1)where m is the slope of the line, and (x1, y1) is the given point on the line. Substituting the given values, we get:
y - 4 = -1(x - (-2))Simplifying this equation, we get:
y - 4 = -x - 2y = -x + 2Now we can graph this line by plotting the given point (-2,4), and then using the slope of -1 to find one or more additional points on the line. We can do this by starting at the given point and then moving one unit down (since the slope is negative) and one unit to the right (since the slope is -1). This gives us the point (-1,3). We can then connect these two points to graph the line.
GRAPHICAL REPRESENTATION:|
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work out missing angle following polygons
Answer:
x = 150°
Step-by-step explanation:
Interior angle of a hexagon = 120° and interior angle of a square = 90°
so remaining angle, 360-120-90 = 150°
Help help math math math math
Answer:
y=2/1+7
Step-by-step explanation:
The quotient of a number squared and four?
Answer:
n^2/4
Step-by-step explanation:
If n is the number, squared is n^2
Quotient if this number and four is
n^2/4
The quotient of a number squared and four will be n² / 4.
What is Algebra?The analysis of mathematical representations is algebra, and the handling of those symbols is logic.
Division means the separation of something into different parts, sharing of something among different people, places, etc.
The square of a number is the multiplication of that number with itself.
Let the number be n.
Then the square of the number n will be given as,
⇒ n²
The quotient of a number squared and four will be given as,
⇒ n² / 4
Thus, the quotient of a number squared and four will be n² / 4.
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The letters "A", "B", "C", "D", "E", and "F" are written on six slips of paper, and the slips are placed into a hat. If the slips are drawn randomly without replacement, what is the probability that "E" is drawn first and "B" is drawn second?
Answer:
1/30
Step-by-step explanation:
The probability of getting ”E” is 1/6.
There is only 1 “E” out of 6 letters.
There is no replacement.
There are now 5 letters without “E”.
”A”, “B”, “C”, “D”, “F”
The probability of getting ”B” is 1/5.
There is only 1 “B” out of 5 letters.
⇒ 1/6 × 1/5
⇒ 1/30
The radius of a semicircle is 4 millimeters. What is the semicircle's perimeter?
Answer:
20.57
Step-by-step explanation:
compare these decimals 0.7______0.6999
1. >
2.<
3.=
A population of rare birds in town is currently listed at 2,000. It is declining at a rate of 2% per year. How many birds will be left after 20 years? Round your answer to the nearest whole number.
A. 1,335 birds
B. 1,980 birds
C. 2,972 birds
D. 23 birds
Option(A) is the correct answer is A. 1,335 birds.
To calculate the number of birds that will be left after 20 years, we need to consider the annual decline rate of 2%.
We can use the formula for exponential decay:
N = N₀ * (1 - r/100)^t
Where:
N is the final number of birds after t years
N₀ is the initial number of birds (2,000 in this case)
r is the annual decline rate (2% or 0.02)
t is the number of years (20 in this case)
Plugging in the values, we get:
N = 2,000 * (1 - 0.02)^20
N = 2,000 * (0.98)^20
N ≈ 2,000 * 0.672749
N ≈ 1,345.498
Rounded to the nearest whole number, the number of birds that will be left after 20 years is 1,345.
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can someone please help with this
Answer: Here you go
..........................................
What is the greatest common factor on question 2
Answer:
1. 2
2. 10
3. 7
4. 3
5. 3
6. 3
7. 3
8. 5
9. 6
10. 4
Step-by-step explanation:
In order to find the greatest common factor (GCF) of two numbers, you need to know what the greatest common factor is. The greatest common factor is the largest positive number, a number can be divided into so to find the greatest common factor you need to list all the integers that the numbers are divisible by and the highest number that both numbers have in common are your GCF.
1.
12, 1, 2, 3, 4, 6, 12
26, 1, 2, 13, 26
GCF = 2
2.
30, 1, 2, 3, 5, 6, 10, 15, 30
40, 1, 2, 4, 5, 8, 10, 20, 40
GCF = 10
3.
35, 1, 5, 7, 35
28, 1, 2, 4, 7, 14, 28
GCF = 7
4.
21, 1, 3, 7, 21
15, 1, 3, 5, 15
GCF = 3
5.
33, 1, 3, 5, 15
15, 1, 3, 11, 33
GCF = 3
6.
27, 1, 3, 9, 27
3, 1, 3
GCF = 3
7.
36, 1, 2, 3, 4, 6, 9, 12, 18, 36
33, 1, 3, 11, 33
GCF = 3
8.
30, 1, 2, 3, 5, 6, 10, 15, 30
5, 1, 5
GCF = 5
9.
30, 1, 2, 3, 5, 6, 10, 15, 30
6, 1, 2, 3, 6
GCF = 6
10.
4, 1, 2, 4
16, 1, 2 ,4, 16
GCF = 4
Hope this helps.
100 Points! Geometry question. Photo attached. Please show as much work as possible. Thank you!
(A) Triangle ABC, and triangle QPR are similar based on side-side-side (SSS) similarity.
(B) Triangle ABC and triangle DEF are similar based on side-side-side (SSS) similarity.
(C) ) Triangle STU and triangle JPM are similar based on side-angle-side (SAS) similarity.
(D) ) Triangle SMK and triangle QTR are similar based on angle-angle (AA) similarity.
What are similar triangles?Similar triangles have the same corresponding angle measures and proportional side lengths.
The triangle similarity criteria are:
AA (Angle-Angle)SSS (Side-Side-Side)SAS (Side-Angle-Side)(A) Triangle ABC, and triangle QPR are similar based on side-side-side similarity.
12/8 = 9/6
1.5 = 1.5
(B) Triangle ABC and triangle DEF are similar base on side-side-side similarity as shown in the side lengths.
(C) ) Triangle STU and triangle JPM are similar base on side-angle-side similarity.
14/10 = 21/15
1.4 =
(D) ) Triangle SMK and triangle QTR are similar base on angle-angle similarity.
SMK = 90⁰, 60⁰, 30⁰
QTR = 90⁰, 30⁰, 60⁰
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What is true about the graph of the line y = -3x + 4?
Answer: There u go ig
Step-by-step explanation:
Formulae to calculate Area of Square
Answer:
Base x hieght=square, and rectanguler Formula.
Step-by-step explanation:
If you have 5 as the base number and 3 for the hieght, you will multiply 5 by 3. that is odvi 15.
I am greater the number of ounces in a pound
I am less than the number of hours in 2days
the difference of my digit is 5
I am an odd number