The exact area of the inscribed circle is 12π square units.
What is circle?A circle is a geometric shape consisting of all the points in a plane that are equidistant from a given point called the center of the circle. The distance between the center and any point on the circle is called the radius of the circle.
According to question:The radius of the inscribed circle is also the distance from the center of the hexagon to each of its sides. To find this distance, we can divide the hexagon into six equilateral triangles, each with side length 2 units. The height of each triangle is √3 times the side length, or 2√3 units. The distance from the center of the hexagon to each side is equal to this height, or 2√3 units.
Therefore, the radius of the inscribed circle is 2√3 units. The area of the circle is given by the formula A = πr², where r is the radius. Substituting in the value of the radius, we get:
A = π(2√3)² = 12π
So the exact area of the inscribed circle is 12π square units.
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In 1960 the avrege price of a car was about 2500 this may sound inxpensive but the avrage income was much less then it is now. to compare doller amounts ovr time use the formula V = a/s c where A is the old dollor amount S is the starting years consumer price index cpi ,C is converting year's cpi and V is the curent value of the old dollar amount. Buying a car for 2500 in 1960 was like buying a car for how much money in 2004
Buying a car for $2,500 in 1960 would be like buying a car for $539.23 in 2004 dollars .we can solve by using formula by substituting all details along with consumer price index
what is consumer price index ?
The Consumer Price Index (CPI) is a measure of the average change over time in the prices paid by urban consumers for a basket of goods and services. The CPI is often used as an indicator of inflation
In the given question,
To compare the dollar amounts over time, we can use the formula V = (A/S) x (C/C'), where:
V = the current value of the old dollar amount
A = the old dollar amount ($2,500 in this case)
S = the starting year's consumer price index (CPI) for the old dollar amount (1960 CPI)
C = the converting year's CPI (2004 CPI)
C' = the starting year's CPI for the converting year (1960 CPI)
Using the formula, we can calculate the current value of $2,500 in 1960 dollars as:
V = (A/S) x (C/C')
V = (2,500/29.6) x (188.9/29.6)
V = 84.46 x 6.380
V = $539.23
Therefore, buying a car for $2,500 in 1960 would be like buying a car for $539.23 in 2004 dollars.
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Which statement best describes the mean of the data listed below? 10, 7, 9, 5, 8, 6, 7, 3, 10, 5, 7 Responses The middle value of the ordered data set is 7. The middle value of the ordered data set is 7. The value that occurs most often in the set is 7. The value that occurs most often in the set is 7. The difference between the smallest value and the largest value is 7. The difference between the smallest value and the largest value is 7. The sum of all the data values divided by the number of data values is 7. The sum of all the data values divided by the number of data values is 7.
Answer: The sum of all the data values divided by the number of data values is 7.
Learning Task 2 : Find the area of each shaded region. Assume that all angles that appear to be right triangle (3 points each).
Step by step answer
PLS
Answer:
Step-by-step explanation:
1●area of shaded region = area of big rectangle -area of small rectangle
=(12×7)-(8×3)
=84-24
=60ft²
2● Area of shaded region =sum of area of all three rectangle
=9×3.5+9×3.5+16×7
=63+112
=175ft²
Answer:
Step-by-step explanation:
Formula of a square Area=[tex]x^{2}[/tex]
1)Area of a Rectangle =l*w
area=(12)(7)
=84 ft
solution for the area non shaded=(8)(3)
= 24 ft
solution for area shaded=84-64
=60 ft
On a truck, one windshield wiper blade is 80 centimeters long and is connected to a swing arm that is 90 centimeters long from the pivot point to the tip, as shown below. If the swing arm rotates the wiper blade is 120, what is the area of the windshield that is swept by the wiper blade? round your answer to the nearest tenth of a square centimeter
The area of the sector rounding to the nearest tenth is C. 8377.6 [tex]cm^2[/tex].
What is law of cosines?The law of cosines is a formula used to find the length of a side or the measure of an angle in a non-right triangle (a triangle that does not have a 90-degree angle).
According to given information:
To find the area of the windshield swept by the wiper blade, we can consider it as a sector of a circle with radius equal to the length of the segment swept by the wiper blade. The length of this segment can be found using the law of cosines:
[tex]c^2 = a^2 + b^2 - 2ab cos(C)[/tex]
where a and b are the lengths of the sides adjacent to the angle C, and c is the length of the side opposite to the angle C.
In this case, we have:
a = 80 cm (length of the wiper blade)
b = 90 cm (length of the swing arm)
C = 120 degrees (angle swept by the swing arm)
Substituting these values, we get:
[tex]c^2 = 80^2 + 90^2 - 2(80)(90)cos(120)[/tex]
[tex]c^2[/tex] ≈ [tex]20418[/tex]
[tex]c[/tex] ≈ [tex]142.8 cm[/tex]
So the radius of the circle is approximately 142.8 cm. The central angle of the sector is 120 degrees, so its measure in radians is 2π/3. Therefore, the area of the sector is:
A = (1/2) * [tex]r^2[/tex] * θ
A = (1/2) * [tex](142.8)^2[/tex] *[tex](2\pi /3)[/tex]
A ≈ 8377.6 [tex]cm^2[/tex]
Rounding to the nearest tenth, we get the answer as C. 8377.6 [tex]cm^2[/tex].
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Find the final amount of money in an account if $ 2 ,100 is deposited at 2 % interest compounded annually and the money is left for 5 years.
[tex]~~~~~~ \textit{Compound Interest Earned Amount} \\\\ A=P\left(1+\frac{r}{n}\right)^{nt} \quad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\dotfill &\$2100\\ r=rate\to 2\%\to \frac{2}{100}\dotfill &0.02\\ n= \begin{array}{llll} \textit{times it compounds per year}\\ \textit{annually, thus once} \end{array}\dotfill &1\\ t=years\dotfill &5 \end{cases} \\\\\\ A = 2100\left(1+\frac{0.02}{1}\right)^{1\cdot 5}\implies A=2100(1.02)^5 \implies A \approx 2318.57[/tex]
18. The lengths of Atlantic croaker fish are normally distributed, with a mean of 10 inches and a standard deviation
of 2 inches. An Atlantic croaker fish is randomly selected.
a) Find the probability that the length of the croaker fish is less than 7 inches.
b) Find the probability that the length of the fish is between 7 and 15 inches
Answer:
a) To find the probability that the length of the croaker fish is less than 7 inches, we need to calculate the z-score of 7 inches using the formula:
z = (x - mu) / sigma
where x is the length of the fish we are interested in, mu is the mean length of the population, and sigma is the standard deviation of the population.
In this case, x = 7, mu = 10, and sigma = 2. So the z-score is:
z = (7 - 10) / 2 = -1.5
We can look up the probability of a z-score less than -1.5 in a standard normal distribution table or use a calculator. The probability is approximately 0.0668 or 6.68%.
Therefore, the probability that the length of the croaker fish is less than 7 inches is 0.0668 or 6.68%.
b) To find the probability that the length of the fish is between 7 and 15 inches, we need to calculate the z-scores of 7 inches and 15 inches using the same formula as above:
z1 = (7 - 10) / 2 = -1.5
z2 = (15 - 10) / 2 = 2.5
We can look up the probability of a z-score between -1.5 and 2.5 in a standard normal distribution table or use a calculator. The probability is approximately 0.9332 or 93.32%.
Therefore, the probability that the length of the fish is between 7 and 15 inches is 0.9332 or 93.32%.
David has a 32 ounce energy drink he drinks 10 ounces Enter the percentage of Ounces he has left of his energy drink.
Answer:
He has 68.8% of his drink left
Step-by-step explanation:
do 32 oz - 10 oz = 22 oz to get how much of his drink is left
To get the percentage, just do what left divided by original amount
so 22/32 = 0.6875 and in percent, that is about 68.8%
Which describes the graph of y = −(x − 3)2 − 8?
The vertex of the parabola is (h, k) = (3, -8), The graph in red has vertex (3, -8), thus, the red parabola is correct.
What is the quadratic functions?A quadratic function is a polynomial function of the form f(x) = ax² + bx + c, where a, b, and c are constants and a is not equal to 0.
We know that the standard form of the parabola is y=ax²+bx+c. Thus, the vertex form of a parabola is y = a(x-h)² + k, and the vertex is given by (h, k)
here, y = −(x − (3))² (−8) is already in vertex form.
Then,
h = 3
k = -8
Thus, the vertex of the parabola is (h, k) = (3, -8), The graph in red has vertex (3, -8), thus, the red parabola is correct.
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Complete question:
Which line describes the graph of y = −(x − 3)2 − 8?
what is the volume of 1 1/2 and 1 and 3 3/4
Answer: 5.625 Cubed
Step-by-step explanation: First you will times 3.75 and 1.5. Which should get you 5.625 squared. Next you will just times 5.625 squared by 1. Which will get you 5.625 cubed.
manufacturer bought a new rolling press for $48,000. It has depreciated in value at a rate of 18% every 2 years. What is the value of the rolling press 7 years after the initial purchase? Round to the nearest cent.
Maker spent $48,000 on a brand-new rolling press. Its value has decreased at a pace of 18% per two years. Seven years after the initial purchase, the rolling press is worth $18,687.53.
We can solve this problem by using the formula for exponential decay:
V = [tex]P * (1 - r)^n[/tex]
where V is the value of the rolling press after n years, P is the initial purchase price, r is the depreciation rate per period, and n is the number of periods.
In this case, we have:
P = $48,000 (the initial purchase price)
r = 18% every 2 years = 0.09 per year (since there are 2 two-year periods in 1 year)
n = 7 years (the number of years that have passed)
These values are entered into the formula to produce the following results:
V = [tex]$48,000 * (1 - 0.09)^7[/tex]
V ≈ $18,687.53
Hence, seven years after the original purchase, the rolling press is now worth roughly $18,687.53.
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What is the circumference if the area is
452.39
Answer:
≈ 75,4
Step-by-step explanation:
Given:
A = 452,39
Find: C - ?
First, we need to find the radius:
A = πr^2
πr^2 = 452,39 / : π
r^2 = 452,39/π
r ≈ 12
Now we can find the circumference:
C = 2π × 12 = 24π ≈ 75,4
Step-by-step explanation:
area of circle = 452.39,πr square = 452.39. 3.14r = 452.39 r square = 144 r = 12 cm diameter = 12x2= 24
Find the LCD of the given rational equation:
2x
x²-25 6x+30
+
-3 8
-
6x
OA. (x+5)(x-5)
OB. (x2-25)(6x+30)(6x)
OC. 6x(x+5)(x - 5)
OD. -48x
The LCD of the given rational function is option B (x²-25)(6x + 30)(6x).
What is rational equation?An equation containing one or more rational expressions is referred to as a rational equation. A fraction with polynomials as the numerator and denominator is known as a rational expression. A rational expression is, in other words, the ratio of two polynomials. Finding the LCD (Least Common Denominator) of the fractions, removing the denominators, and then simplifying the resultant equation can be used to solve rational equations. By resolving the resultant equation, which may require factoring, simplification, or the use of other algebraic strategies, the solutions of rational equations can be discovered. In order to simulate complicated systems and events, rational equations are frequently employed in physics, engineering, and other disciplines.
For the given rational equation the LCD will be the multiplication of all the denominators in the given rational equation.
Thus,
(x²-25)(6x + 30)(6x)
Hence, the LCD of the given rational function is option B (x²-25)(6x + 30)(6x).
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Drag each number to the correct location on the statement. Not all numbers will be used. Consider the sequence below. -34, -21, -8, 5, ...
Complete the recursively defined function to describe this sequence.
34
-21
-13
15
13
-34
f(1) = [ ]
f(n) = f(n-1) + [ ]for n = 2, 3, 4, ...
The sequence of the function is -34,-34 -8
Define common differenceIn mathematics, the common difference is a term used in arithmetic sequences to refer to the fixed difference between any two consecutive terms in the sequence.
An arithmetic sequence is a sequence of numbers in which each term is obtained by adding a fixed value, called the common difference, to the preceding term.
-34 -21 -8 5 ...
f(1) = -34
f(n) = f(n-1) + [n-2]*13 for n = 2, 3, 4, ...
The common difference between consecutive terms of the sequence is 13.
The first term of the sequence is -34, which is f(1).
To get the nth term of the sequence, we add (n-2)*13 to the (n-1)th term of the sequence.
For example, to get the 2nd term of the sequence, we add (2-2)*13 = 0 to the 1st term, -34, which gives us -34.
To get the 3rd term, we add (3-2)*13 = 13 to the 2nd term, which gives us -21+13 = -8.
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what is the result of 4:3x
Answer:
Step-by-step explanation:
-5
What is the solution to 38.4 = 2x
Answer:
19.2
Step-by-step explanation:
You want the solution to 38.4 = 2x.
One-step linear equationWhen you divide both sides of the equation by 2, you will have your answer.
38.4/2 = (2x)/2
19.2 = x
The solution to the equation is x = 19.2.
__
Additional comment
When you learned multiplication and division, you learned that each multiplication fact corresponds to two division facts:
A = B×C . . . . . . . 6 = 2×3
A/B = C . . . . . . . . 6/2 = 3
A/C = B . . . . . . . . 6/3 = 2
We use that relationship here to find the value of one of the factors in the product:
38.4 = 2·x
38.4/2 = x
The other division fact is still true, but isn't useful here for finding the value of x.
38.4/x = 2
What is the equation of the
circle with centre (0,-1) and
radius 4?
Answer:
Step-by-step explanation:
Equation of a circle: [tex](x-a)^2+(y-b)^2=r^2[/tex] with centre [tex](a,b)[/tex], radius [tex]r[/tex].
[tex](x-0)^2+(y+1)^2=4^2[/tex]
[tex]x^2+(y+1)^2=16[/tex]
Please provide the answer
Answer:
your answer is the second one.
A roasted turkey is taken from an oven when its temperature has reached 185 Fahrenheit and is placed on a
table in a room where the temperature is 75 Fahrenheit. Give answers accurate to at least 2 decimal
places.
(a) If the temperature of the turkey is 153 Fahrenheit after half an hour, what is its temperature after 45
minutes?
Fahrenheit
(b) When will the turkey cool to 100 Fahrenheit?
hours.
After answering the presented question, we can conclude that As a equation result, the turkey's temperature after 45 minutes is roughly 134.43 Fahrenheit.
What is equation?In mathematics, an equation is a statement that states the equality of two expressions. An equation consists of two sides separated by an algebraic equation (=). The argument "[tex]2x + 3 = 9,[/tex]" for example, states that the sentence "[tex]2x + 3[/tex]" equals the value "9." The goal of solving equations is to find the value or values of the variable(s) that will allow the equation to be true. Equations can be simple or complex, linear or nonlinear, and contain one or more parts. In the equation "[tex]x2 + 2x - 3 = 0[/tex]," the variable x is raised to the second power. Lines are used in many areas of mathematics, including algebra, calculus, and geometry.
a. [tex]dT/dt=-k(T-Ts)[/tex]
[tex]-kdt=(DT/(T-Ts)[/tex][tex])[/tex]
When both sides are combined, the following results:
[tex]-kt + C = ln|T - Ts|[/tex]
where C is the integration constant. To calculate C, we can start with the assumption that the turkey is 185 degrees Fahrenheit when it comes out of the oven:
[tex]ln|185 - 75| = -k(0) + C[/tex]
[tex]C = ln(110) (110)[/tex]
As a result, the equation relating the temperature of the turkey to time is:
[tex]-kt+In|T-75|=-kt+In(110)[/tex]
[tex]T=e(-ktIn(110)+75[/tex]
[tex]T=110e(-0.5k)+75[/tex]
[tex]T=110e(-0.75k+75 T134.43[/tex] degrees Fahrenheit
As a result, the turkey's temperature after 45 minutes is roughly 134.43 Fahrenheit.
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Which of the following is the *best* way to rewrite
44 x 50
so that the exact answer can be found mentally?
Answer:
22 × 100
(which is 2200)
Step-by-step explanation:
44 × 50 may not look like a problem you can do in your head. But if you notice that there is a 2 in the 44 that you can "move over" to the 50 instead, you totally can do this multiplication in your head.
44 × 50
= 22 × 2 × 50
= 22 × 100
= 2200
A right triangle has legs which measure 14 inches and 18 inches. Find the length of the
hypotenuse.
answers:
13 inches
25 inches
32 inches
22.8 inches
Answer:
22.8 Inches
Step-by-step explanation:
To find the hypotenuse, the formula is √c=√a^2+b^2
Lets input our values now:
c=√14^2+18^2
Now, let's solve:
c=√196+324
c=√520
The square root of 520 equals about 22.8, so our answer would be 22.8 inches.
When Rom was 16 years old, he deposited certain sum of money in a bank at the rate of 10% p. a. Compounded annually. After his balance became 121 times the initial principal, he deposited & of the 400 existing balance in the same account. After 1 year of this deposition, the bank changed it's policy to giva interest at 20°1. p.a simple interest. At the age of 24 years, Ram planned to stort a business. so he withdrew all the money from his account. He found that the withdrawn amount was Rs. 359 less than thrice of the initial principal. Then,
Find the sum deposited by Ram at the age of 16 years. The amount withdrawn from the bank was not enough so, he borrowed a loan of Rs. 1.10,000 from the bank and agreed to pay within 4 years, at rate of 15% pa. compounded annually. He paid the interest of the first year at the end of the 1st year. He cleared his debt by paying equal installments in next 2 years and 1 year.
.
Find the total interest paid by him to the bank. For how many years, he should have waited to start the business so that he need not borrow entra Loan?
The total interest paid by him to the bank would be: Rs. 28,500. Ram should have waited for 3 years, to start his business without borrowing extra loan, until the age of 19.
What is an interest?
Let the sum deposited by Ram at the age of 16 be x.
After compounding for n years, the balance becomes x(1.1)^n.
As per the given condition, we have:
x*[tex](1.1)^{n}[/tex] = 121x
[tex](1.1)^{n}[/tex] = 121
n = 2
So, after two years, Ram's balance became 121 times the initial principal.
After this, he deposited 1/4 of the existing balance, i.e. 1/4 * 121x = 30.25x
After one year of this deposit, the balance becomes 30.25x * 1.2 = 36.3x
So, Ram's total balance at the age of 19 becomes 121x + 36.3x = 157.3x
This is given to be Rs. 359 less than thrice of the initial principal, i.e.
157.3x = 3x - 359
Solving this equation, we get:
x = Rs. 480
So, the sum deposited by Ram at the age of 16 was Rs. 480.
Now, he borrowed Rs. 1,10,000 at 15% p.a. compounded annually.
The interest for the first year would be (15/100) * 1,10,000 = Rs. 16,500
After paying this interest, the remaining balance becomes:
1,10,000 + 16,500 = Rs. 1,26,500
Now, he cleared his debt by paying equal installments in the next 2 years and 1 year.
Let the equal installment be x.
So, the balance after the first year becomes:
1.15x + (1.15)²x + (1.15)³x - x = 1,26,500
Solving this equation, we get:
x = Rs. 45,000
So, Ram paid a total of Rs. 1,35,000 to clear his debt.
The total interest paid by him to the bank would be:
16,500 + 0.15 * 45,000 + 0.15 * 45,000 + 0.15 * 45,000 = Rs. 28,500
To start his business without borrowing extra loan, Ram should have waited for 3 years, until the age of 19, when his balance was Rs. 157.3x = Rs. 75,264. With an interest rate of 20% p.a. simple interest, the balance would become:
75,264 + 0.2 * 75,264 = Rs. 90,316.8
This amount would be sufficient for him to start his business without borrowing extra loan.
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Write the equation for a parabola with a focus at (2,2) and a directrix at x=8.
x=(blank)
Answer: x=-((y-2)^2)/12 +5
Step-by-step explanation:
Since the directrix is vertical, use the equation of a parabola that opens up or down. Find the vertex.
Calculate the pay for the following day of a weekly time card given a wage of $14/hr.
Name
Week of: Morning
Afternoon
In
Out
In
Out
Monday 08:00 12:15
13:00 | 17:15 round to the nearest hundred
Given a salary of $14 per hour, the pay for the following day of a weekly time card is $126.
How to calculate pay for the following?It is the sum of money an employee receives in exchange for the job they perform. A monthly salary, annual salary, or hourly rate are the most common ways to convey it.
Pay = (4 hours x $14/hr) + (5 hours x $14/hr)
= $126
The wage rate must be increased by the number of hours performed in order to determine the pay for the day.
The wage rate is $14/hr.
A 4 hour morning shift and a 5 hour afternoon shift were performed by the employee. Therefore, the day's salary is calculated using the following formula:
(4 hours x $14/hr) + (5 hours x $14/hr) = $126.
If you round this amount to the nearest hundredth, your total pay will be $126.00.
Monday 08:00 12:00 4hrs * $14 $56.00
12:15 17:30 5hrs * $14 $70.00
Total wages $126.00
It's crucial to maintain precise records of the hours worked each day to make sure the employee is paid correctly.
This covers the hours they arrive at work, leave at the end of the day, and any pauses they take. The employee's salary can then be calculated with accuracy using this information.
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Question 3 In a science class everyone study Physics, Chemistry, Biology or combination of any of the three courses. 22 students study Physics and Biology, 21 students study Chemistry and Biology, 18 students study Chemistry and Physics. If only 6 students study pure Chemistry (15 marl 10 students study pure Physics and 8 students study pure Biology, then; a) Find the total number of students in the class.
Answer:
Step-by-step explanation:
Let's use a Venn diagram to help us visualize the information given in the problem. We can start with three overlapping circles representing Physics (P), Chemistry (C), and Biology (B), and then fill in the numbers given:
P
/ \
/ \
/ \
CP BP
\ /
\ /
\ /
B
We know that 6 students study pure Chemistry, so we can write this number in the circle for Chemistry (C). We also know that 10 students study pure Physics and 8 students study pure Biology, so we can write these numbers in the circles for Physics (P) and Biology (B), respectively:
P (10)
/ \
/ \
/ \
CP (18) BP (21)
\ /
\ /
\ /
B (8)
C (6)
Now we can use the information given in the problem to fill in the remaining numbers:
22 students study Physics and Biology, so this number goes in the overlap between P and B: PB = 22
21 students study Chemistry and Biology, so this number goes in the overlap between C and B: CB = 21
We don't know the number of students who study Physics and Chemistry only, but we can use the fact that 6 students study pure Chemistry to figure it out. Since 18 students study Chemistry and Physics in total, and 6 of them study pure Chemistry, the remaining 18 - 6 = 12 students must study both Chemistry and Physics but not Biology. We can write this number in the overlap between C and P: CP = 12.
P (10)
/ \
/ \
/ \
CP (12) BP (21)
\ /
\ /
\ /
B (8)
C (6)
Now we can find the total number of students by adding up all the numbers in the Venn diagram:
Total = P + C + B - (CP + CB + PB) + (CPB)
Total = 10 + 6 + 8 - (12 + 21 + 22) + 0
Total = 19
Therefore, the total number of students in the class is 19.
Assume that Lavonia's marginal tax rate is 20%. If a city of Tampa bond pays 8% interest, what interest rate would a corporate bond have to offer for Lavonia to be indifferent between the two bonds?
The interest rate would a corporate bond have to offer for Lavonia to be indifferent between the two bonds is 6.35%.
What is an interest rate?
The amount that the lender charges the borrower over and beyond the principal amount is referred to as the interest rate. A person who deposits money in a bank or other financial institution also earns additional income in terms of the recipient, known as interest, taking into account the time value of money.
Here, we have
Given: Assume that Lavonia's marginal tax rate is 20%. If a city of Tampa bond pays 8% interest.
We have to find the interest rate would a corporate bond have to offer for Lavonia to be indifferent between the two bonds.
= Interest rate/(1-Tax rate)
= 5%/(1-0.20)
= 6.25%
Hence, the interest rate would a corporate bond have to offer for Lavonia to be indifferent between the two bonds is 6.35%.
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find the length of each arc
The arc length of the each arc are 14π cm, 95π/6 ft, 7π cm, 39π/4 ft.
What is arc length of a circle?
The arc length formula for a circle is given by L = rθ, where L is the arc length, r is the radius, and θ is the central angle measured in radians.
9) Here angle= 315° and radius= 8cm.
First, we need to convert the angle to radians: 315° × (π/180°) = 7π/4.
Then we can use the arc length formula,
L = 8 × 7π/4 = 14π cm.
10) Here angle = 150° and radius= 19 ft.
First, we need to convert the angle to radians: 150° × (π/180°) = 5π/6.
Then we can use the arc length formula,
L = 19 × 5π/6 = 95π/6 ft
11) Here angle = π/2 and radius= 14 cm.
According to the arc length formula,
L = 14 × π/2 = 7π cm .
12) Here angle= 3π/4 and radius= 13 ft.
According to the arc length formula,
L = 13 × 3π/4 = 39π/4 ft.
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Find measure of the indicated angle
Answer:
60°
Step-by-step explanation:
it's one half of an equilateral triangle, all sides equal and angles congruent, sum is 180°, divide by three and you have 60° which is your answer.
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Answer:
WX=43
Step-by-step explanation:
VY=5y-2
VW=4y
WX=5y-2
YX=4y
VY=a
VW=b
WX=c
YX=d
a+b+c+d=18y-4
P=18y-4
158=18y-4
162=18y
y=9
WX=45-2
WX=43
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A student missed 11 problems on a English test and received a grade of 50%. If all the problems were of equal value, how many problems were on the test? Follow the problem-solving process and round your answer to the nearest integer.
Answer:
22 problems
Step-by-step explanation:
50% is half of 100, so if 100 divided by 2 is 50, then 11 x 2 is 22. 22 is the answer
A parallelogram has coordinates of (5, 17), (10, 20), (18, 9), and (13, 6). Which right triangle represents one of the cutouts from the box method?
A right triangle is shown. The length of one side is 5, and another is 17.
A right triangle is shown. The length of one side is 5, and another is 8.
A right triangle is shown. The length of one side is 8, and another is 11.
A right triangle is shown. The length of one side is 3, and another is 8.
The answer is right angle with leg 3 and 8.
To use the box method to find the area of the parallelogram, we need to divide it into two triangles. One possible way to do this is by drawing a diagonal from (5, 17) to (18, 9), and creating two triangles with vertices (5, 17), (10, 20), and (18, 9), and (5, 17), (13, 6), and (18, 9).
The length of the diagonal can be found using the distance formula:
d = √[(18 - 5)^2 + (9 - 17)^2]
d = √[(13)^2 + (-8)^2]
d = √(169 + 64)
d = √233
Now, the area of the parallelogram is equal to the product of the length of the diagonal and half the height of the parallelogram. One of the cutouts from the box method will be a right triangle with legs equal to half the height and half the length of the diagonal.
Half the height can be found by taking the difference in y-coordinates between (5, 17) and (18, 9) and dividing by 2:
h = (17 - 9)/2
h = 4
Half the length of the diagonal is:
l = √233/2
Using these values, we can check each of the given right triangles to see which one matches the dimensions of the cutout:
A right triangle with legs 5 and 17 does not match, since the legs should be half the diagonal and half the height.
A right triangle with legs 5 and 8 does not match, since the legs should be half the diagonal and half the height.
A right triangle with legs 8 and 11 does not match, since the legs are not proportional to the dimensions of the parallelogram.
A right triangle with legs 3 and 8 matches, since half the diagonal is approximately 7.66 and half the height is 4, and 3 and 8 are proportional to these values.
Therefore, the correct answer is the right triangle with legs of 3 and 8.
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Answer:
its the middle one ( 8,11)
Step-by-step explanation: