Answer:
70
Step-by-step explanation:
5/12 X 144 = 720/12 = 60 passengers are sitting on lower.
rest of passengers = 144 - 60 = 84 are on upper.
14 on upper are standing on upper, then 84 - 14 = 70 are sitting there (on upper).
Chelsea bought a bond with a face value of $5,000. The bond has a term of 4 years. Chelsea bought the bond at a 3 percent discount from the face value. The bond pays 3 percent annual interest, and Chelsea will receive eight semiannual payments. When the bond is redeemed at maturity, the total return (profit) will be decimal place.)
Chelsea's total return (profit) when the bond is redeemed at maturity is $50.
Chelsea paid for the bond with the 3% discount:
Discount = 3% of $5,000
= $150
Price paid for the bond = $5,000 - $150
= $4,850
Next, let's calculate how much Chelsea will receive in each semiannual payment:
Semiannual interest rate = 3% / 2
= 1.5%
Semiannual payment = Face value x Semiannual interest rate = $5,000 x 1.5% = $75
Since there are eight semiannual payments, Chelsea will receive a total of:
Total semiannual payments = Semiannual payment x Number of semiannual payments = $75 x 8 = $600
Finally, let's calculate the total return (profit) when the bond is redeemed at maturity:
Total interest earned = Annual interest rate x Term x Face value = 3% x 4 x $5,000 = $600
Face value at maturity = $5,000
Total return = Price paid + Total interest earned + Total semiannual payments - Face value at maturity
Total return = $4,850 + $600 + $600 - $5,000 = $50
Therefore, Chelsea's total return (profit) when the bond is redeemed at maturity is $50.
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the association between the amount of money a person spends on bills per month and the amount of money the person has available to spend on entertainment is
The association between the amount of money a person spends on bills per month and the amount of money the person has available to spend on entertainment can vary greatly depending on individual circumstances.
For some people, their bills may take up a significant portion of their income, leaving them with very little discretionary spending. Others may have lower bills and more income, allowing them to spend more on entertainment.
It's important to note that there may also be other factors at play, such as a person's financial priorities and habits. For example, someone may choose to spend more on bills in order to pay off debt or save for the future, even if it means having less money for entertainment. On the other hand, someone else may prioritize entertainment spending and cut back on bills in order to afford it.
Overall, while there may be some correlation between bill spending and available entertainment funds, the relationship is complex and highly individualized. It's important for each person to assess their own financial situation and priorities in order to determine the best way to allocate their funds.
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Write the quadratic function g (x) = x² - 2x - 5 in vertex form.
Answer:
(x -1)2 = y - 4
Step-by-step explanation:
work out the value of x
Answer:
20
Step-by-step explanation:
4x + 5x = 180
9x = 180
x = 20
Consider the initial value problem y'=ty(4-y)/(1+t), y(0)=ysubnot. (a) Determine how the solution behaves as t goes to infinity. (b) If y subnot equals 2, find the time T at which the solution first reaches the value 3.99. (c) Find the range of initial values for which the solution lies in the interval 3.99
Thus, the range of initial values for which the solution lies in the interval [3.99, 4] is ysubnot in (0, 4).
(a) As t goes to infinity, the denominator of the right-hand side approaches infinity while the numerator approaches 4ty. Thus, the solution approaches the equilibrium solution y=4.
(b) Using separation of variables and partial fractions, we can obtain the solution: y = 4 / (1 + 3e^(2t^2/2 + C)). Setting y = 3.99 and solving for t, we obtain t = sqrt[ln(3.99/0.01) / 2].
(c) We can rearrange the differential equation to obtain y'/(y(4-y)) = t/(1+t) and then integrate both sides. This gives ln|y/(4-y)| = C + ln(1+t) - t, where C is the constant of integration. To find the range of initial values for which the solution lies in the interval [3.99, 4], we need to solve the inequality 3.99 <= y <= 4 for y in terms of t. This gives the condition -∞ < t <= ln(999/1).
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11. A company is selling two new products. Weekly sales of product one can be
modeled by the function f(x) = 100(1.108)* after x weeks. Weekly sales of product
two can be modeled by the function g(x) = 10x + 200 after x weeks. After
approximately how many weeks will the weekly sales of the two products be the
same? (Hint: Where do they intersect)
Tide
A. 9 weeks
B. 11 weeks
C. 15 weeks
D. 19 weeks
Ap calculus test. College board
Multivariable calculus in college is generally more challenging than AP Calculus BC due to the additional complexity of working with functions of several variables.
Multivariable calculus in college typically goes beyond the content covered in AP Calculus BC in high school. While both cover calculus concepts, multivariable calculus adds the complexity of working with functions of several variables, including partial derivatives, multiple integrals, and vector calculus. As a result, the difficulty level of multivariable calculus in college can be significantly higher than AP Calculus BC. However, this can vary depending on the individual student and the rigor of their high school AP course.
AP Calculus AB and BC are two levels of Advanced Placement calculus courses typically offered in high school.
AP Calculus AB covers a wide range of calculus topics including limits, derivatives, integrals, applications of derivatives and integrals, and the Fundamental Theorem of Calculus. The focus is on single-variable calculus, meaning students work with functions of one variable.
AP Calculus BC, on the other hand, covers all the topics included in AB as well as additional concepts such as parametric, polar, and vector functions, series, and sequences. The course is designed to be more challenging and covers more advanced topics in calculus, including applications of calculus in physics and engineering.
Overall, AP Calculus BC is considered to be a more rigorous course than AP Calculus AB, but both courses prepare students for college-level calculus.
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complete question:
how does multivariable calculus in college compare with ap calculus bc in high school? is there a significant gap in difficulty?
A store sells two different fruit baskets with mangos and kiwis. The first basket has 2 mangos and 3 kiwis for $9.00. The second basket has 5 mangos and 2 kiwis for $14.25. Find the cost of each type of fruit.
a. Explain how you would write a system of equations to represent the information given.
b. Write the system of equations as a matrix.
c. Find the identity and inverse matrices for the coefficient matrix.
d. Use the inverse to solve the system.
e. Interpret your answer in this situation.
The cost of kiwis is $1.5 The cost of mangoes is $2.25. Cost, in popular usage, is the financial worth of the goods and services that producers and consumers purchase.
Cost, in popular usage, is the financial worth of the goods and services that producers and consumers purchase. The cost price, in accordance with fundamental economic discernment, is an estimation for the substitute opportunities forgone in choosing one good or pursuit over another.
2m + 3k = 9
5m + 2k = 14.25
m = mangoes
k = kiwis
10m + 15k = 45 equation 3
10m +4k = 28.5 equation 4
11k = 16.5
k = 1.5
2m + 3(1.5) = 9
m = 2.25
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A six-foot man casts a 15 foot shadow. At the same time a streetlight casts an 80-foot shadow.
The same six-foot tall man wants to indirectly measure the streetlight in screen 3. But it is a cloudy day and there are no shadows. So holding his phone by his eye, he uses the "level" feature on the Measure app to sight the top of the streetlight. Standing 20 feet away he finds an angle of elevation of 52.5 degrees.
Write and solve an equation to determine the height of the streetlight.
The height of the streetlight is 30 feet.
Let's call the height of the streetlight "h".
When the person is 16 feet from the streetlight, the length of their shadow will be 16 feet * (6 feet / h) = 96 feet / h.
When the person is 5 feet from the tip of the streetlight's shadow, the length of the streetlight's shadow will be h * (16 feet / 5 feet) = 3.2 * h.
Since the length of the person's shadow starts to appear beyond the streetlight's shadow when they are 5 feet from the tip of the streetlight's shadow, we know that 96 / h > 3.2 * h.
Solving for h, we get:
96 / h > 3.2 * h
96 > 3.2h
30 > h
So, the height of the streetlight is less than 30 feet.
To determine the exact height of the streetlight, we can use the equation:
96 / h = 3.2 * h
96 = 3.2h
30 = h
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complete question:
a six foot person walks from the base of a streetlight directly toward the tip of the shadow cast by the streetlight. when a person is 16 feet from the streetlight and 5 feet from the tip of the streetlight's shadow, the person's shadow starts to appear beyond the streetlight's shadow. what is the height of the streetlight?
The price of a CD radio cassette has been reduced from $16,999 to $13,999 . Calculate the rate of discount
The rate of discount for the CD radio cassette is 17.65%.
To calculate the rate of discount, we need to find the difference between the original price and the discounted price, and then divide that difference by the original price.
Original price: $16,999
Discounted price: $13,999
So, the Discount amount
= Original price - Discounted price
= $16,999 - $13,999
= $3,000
Rate of discount = (Discount amount / Original price) * 100%
= ($3,000 / $16,999) x 100%
≈ 17.65%
Therefore, the rate of discount for the CD radio cassette is 17.65%.
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pLSSS HELP
Which of the following is not a step when drawing an angle? (1 point)
a
Draw a ray
b
Connect the arrows with a straight line
c
Line up the baseline on the protractor with the ray
d
Draw arrows on both ends to make them rays
Drawing a straight line and adding arrowheads is an easy way to create rays that are useful in geometry and other mathematical applications.
To connect the arrows with a straight line, you simply need to draw a line segment that passes through both arrowheads. This will create a line that extends infinitely in both directions.
To turn the arrows into rays, you can add an arrowhead on one end of the line segment to indicate the direction of the ray. This will create two rays that originate from the same point and extend infinitely in opposite directions.
It is important to note that a ray is named based on the direction in which it travels, so you may need to specify which direction each ray is pointing.
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For the month of January in a certain​ city, 76​% of the days are cloudy. Also in the month of January in the same​ city, 32​%
of the days are cloudy and snowy. What is the probability that a randomly selected day in January will be snowy if it is cloudy​?
The probability that a randomly selected day in January will be snowy, given that it is cloudy, is approximately 0.421 or 42.1%.
To find the probability that a randomly selected day in January will be snowy given that it is cloudy, we need to use conditional probability.
Let's denote:
C = event that a randomly selected day is cloudy
S = event that a randomly selected day is snowy
We are given:
P(C) = 76% = 0.76 (probability of a day being cloudy)
P(C and S) = 32% = 0.32 (probability of a day being both cloudy and snowy)
The conditional probability of S given C can be calculated using the formula:
P(S|C) = P(C and S) / P(C)
Plugging in the values, we have:
P(S|C) = 0.32 / 0.76 ≈ 0.421 (rounded to three decimal places)
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The regular cost of a music system is $80 999 . During a sale it was sold for $69,999 . Calculate the rate of discount
Answer:
24.5%
Step-by-step explanation:
What is an inequality in algebra
Answer:
inequalitys are mathematical expressions involving the symbols >, <, ≥ and ≤
Step-by-step explanation:
It's usually used to solve for an unknown value, and graphs
f(x)=4+3x-x^2 f(3+h)-f(3)/h
The final expression for the given problem is (f(3+h) - f(3))/h = -h - 3.
To solve this problem, we first need to determine the value of f(3+h) and f(3):
Given [tex]F(x) = 4 + 3x - x^2[/tex], we can find f(3+h) by substituting 3+h for x:
[tex]f(3+h) = 4 + 3(3+h) - (3+h)^2\\f(3+h) = 4 + 9 + 3h - (9 + 6h + h^2)\\f(3+h) = -h^2 - 3h + 4[/tex]
Next, we can find f(3) by substituting 3 for x:
[tex]f(3) = 4 + 3(3) - (3)^2\\f(3) = 4 + 9 - 9\\f(3) = 4[/tex]
Now we can substitute these values into the expression (f(3+h) - f(3))/h:
[tex](f(3+h) - f(3))/h = ((-h^2 - 3h + 4) - 4)/h\\(f(3+h) - f(3))/h = (-h^2 - 3h)/h\\(f(3+h) - f(3))/h = -h - 3[/tex]
Therefore, the final expression for the given problem is:
(f(3+h) - f(3))/h = -h - 3
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Check the image..........................................................................
The combined cost of the notebooks and the pens will be; $5.5
We have been Given that Kendall bought 6 notebooks and 3 pens for a total of $27. The cost of one notebook is $1.50 more than the cost of one pen.
The two equations can be written;
6N + 3 P = 27
n = 1.5 +P
Solve the above equations by substitution method;
6(1.5 + P) + 3P = 27
9 +6p +3p = 27
9p = 18
p (pen): $2
N (notebook): $3.5
The combined cost will be;
Cost = 2 + 3.5
Cost = $5.5
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suppose that you want to construct a 95% confidence interval for estimating a population mean. how does the margin of error with a sample size of 100 compare with the margin of error with a sample size of 2500 if both samples have the same standard deviation
The margin of error is directly proportional to the sample size. As the sample size increases, the margin of error decreases.
What is sample?
In statistics, a sample refers to a subset of individuals or observations taken from a larger population. It is a representative portion of the population that is selected to gather information and make inferences about the entire population.
Given that the standard deviation is the same for both samples, with a sample size of 100 and a sample size of 2500, the margin of error will be smaller for the sample size of 2500 compared to the sample size of 100.
This means that with a larger sample size of 2500, we can expect a more precise estimation of the population mean, resulting in a narrower confidence interval. Conversely, with a smaller sample size of 100, the margin of error will be larger, resulting in a wider confidence interval and a less precise estimation of the population mean.
Therefore, the margin of error is directly proportional to the sample size. As the sample size increases, the margin of error decreases.
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PLSPLSPLS WILL GIVE BRAINLY PLEASE
determine the vertical asymptotes and holes for the graph of the equation below.
x+1 / x^2-6x-7
Thee vertical asymptotes and holes for the graph of the equation are: B. Vertical asymptote, x = 7, Hole, x = -1.
What is a vertical asymptote?In Mathematics and Geometry, the vertical asymptote of a function simply refers to the value of x (x-value) which makes its denominator equal to zero (0).
By critically observing the rational function shown above, we can logically deduce that its vertical asymptotes can be determined by factorizing the denominator as follows;
x² - 6x - 7 = 0
x² - 7x + x - 7 = 0
x(x - 7) + 1(x - 7) = 0
(x - 7)(x + 1) = 0
x = 7 or x = -1
Vertical asymptote, x = 7
Hole, x = -1.
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Nina's car exponentially depreciates at a rate of 8% per year. If Nina bought the car when it was 7 years old for $14,000, what was the original price of the car?
Answer:
And solving for the initial amount we got:
So then the original price for the car would be approximately 18263.539$
Step-by-step explanation:
For this case we can use the exponential model given by:
Where:
represent the initial amount for the car
represent the exponential growth/decay rate
t represent the number of years. With t =0 at the begin
After 6 year we have that t =6, and we know this condition:
So then we can use the exponential model formula and the condition given and we have this:
And solving for the initial amount we got:
So then the original price for the car would be approximately 18263.539$
During a weekend, the manager of a mall gave away gift cards to every 80th person who visited the mall.
• On Saturday, 1,310 people visited the mall.
• On Sunday, 1,714 people visited the mall.
How many people received a gift card?
answer fast and explain pls
Answer:
37 people received a gift card over the weekend.
Step-by-step explanation:
To solve this problem, we need to find the total number of visitors who received a gift card on Saturday and Sunday separately and then add them.
For Saturday, we need to divide the total number of visitors by 80 to find how many received a gift card:
1,310 ÷ 80 = 16.375
We can't have a fraction of a person receiving a gift card, so we round down to 16. This means 16 people received a gift card on Saturday.
For Sunday, we do the same calculation:
1,714 ÷ 80 = 21.425
Again, we round down to 21. This means 21 people received a gift card on Sunday.
To find the total number of people who received a gift card, we add the number of people who received a gift card on Saturday and Sunday:
16 + 21 = 37
Therefore, a total of 37 people received a gift card over the weekend.
Answer: 404 gift cards to every person or either 202
Step-by-step explanation: because subtracting all the number you will get 404 then you have divided by 2 to get 202
in a certain town, 65% of households own a cell phone, 23% own a ipad, and 12% own both a cell phone and ipad. the probability that a randomly selected household owns neither a cell phone or ipad is
To find the probability that a randomly selected household owns neither a cell phone nor an iPad, we need to subtract the probability of owning at least one device from 1.
First, we can find the percentage of households that own at least one device: 65% own a cell phone , 23% own an iPad , 12% own both
To find the percentage that own at least one device, we add the percentages of cell phone and iPad owners and then subtract the percentage that own both: 65% + 23% - 12% = 76%
Therefore, 76% of households own at least one device.
To find the percentage of households that own neither device, we subtract 76% from 100%: 100% - 76% = 24%
So the probability that a randomly selected household owns neither a cell phone nor iPad is 24%.
In summary, the three paragraph answer is: The probability that a randomly selected household owns neither a cell phone nor iPad in a certain town is 24%. Therefore, the probability that a randomly selected household owns neither a cell phone nor an iPad is 100% - 76%, which equals 24%.
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DUE TOMORROW!!! PLS HELP!! 1 POINT!!!
What is the measure of the unknown angle? (1 point)
image of a one hundred ninety eight degree angle and an unknown angle
a
152°
b
157°
c
162°
d
169°
Answer:
162 Degrees
Step-by-step explanation:
Think of this as a circle.
If you subtract 360 from 198, you get 162.
Which would be your missing angle.
suppose an investor has a long box spread using the june 50 and 55 options. what is the cost of the box spread?
To determine the cost of a box spread, you need to calculate the net cost or net debit of the options involved in the spread. In a long box spread, you buy a bull call spread and a bear put spread using the same expiration date and strike prices.
In this case, the investor has a long box spread using the June 50 and 55 options. The bull call spread involves buying the June 50 call option and selling the June 55 call option, while the bear put spread involves buying the June 55 put option and selling the June 50 put option.
To calculate the cost of the box spread, you would add the cost of the bull call spread (net debit) to the cost of the bear put spread (net debit). The net debit is the difference in premiums between the options involved in each spread.
Since the specific premium values for the options are not provided in the question, it is not possible to determine the exact cost of the box spread without that information. You would need the premium values to calculate the net debit for each spread and then sum them to determine the total cost of the box spread.
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14. The diameter of a cylinder is 7 feet, and the height is 12 feet. What is the volume of the cylinder in terms of л? Recall that the volume formula for a cylinder is V = r²h.
Answer:
The formula is V = r²h for the volume of a cylinder, we need to first find the radius of the cylinder:
The diameter of the cylinder is 7 feet, so the radius is half of that cylinder, so you have to divide by 2 to get half of the diameter:
r = 7/2
= 3.5 feet.
V = π(3.5)²(12)
V = π(12.25)(12)
V = 147π
Therefore, the volume of the cylinder is 147π cubic feet.
a piece of rock has a mass of 86.3g , correct to the nearest 0.1g . find the greatest possible mass of the rock in 2 decimal places
The greatest possible mass of the rock to two decimal places is 86.34 g
How to find the greatest possible mass of the rock?Since the mass of the piece of rock is 86.3 g, correct to the nearest 0.1 g. Thus, the actual mass of the rock in 2 decimal places could be between 86.25 g and 86.34 g.
To find the greatest possible mass of the rock, we need to round up to the higher end of the range of the mass of the rock.
Therefore, the greatest possible mass of the rock to two decimal places is 86.34 g
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gland, a small landlocked nation, has a population of rats that is growing at a rate proportional to its size. in 2019, there were 9,325 rats in gland, and in 2022, there were 12,140. how big will the population of glandian rats be in 2031?
The predicted population of Glandian rats in 2031 will be approximately 33,290.
In the case of Gland, the population of rats is growing at a rate proportional to its size. This means that the growth can be modeled using an exponential function. Given the data from 2019 (9,325 rats) and 2022 (12,140 rats), we can find the growth rate (r) and use it to predict the population in 2031.
Let's denote the initial population as P0, the population after t years as Pt, the growth rate as r, and the time elapsed in years as t.
1. Calculate the annual growth rate:
Pt = P0 * (1 + r)^t
12,140 = 9,325 * (1 + r)^(2022-2019)
12,140 = 9,325 * (1 + r)^3
2. Solve for r:
(1 + r)^3 = 12,140 / 9,325
(1 + r)^3 ≈ 1.301
1 + r ≈ 1.091
r ≈ 0.091 or 9.1%
3. Predict the population in 2031:
P2031 = P0 * (1 + r)^(2031-2019)
P2031 = 9,325 * (1.091)^(2031-2019)
P2031 = 9,325 * (1.091)^12
P2031 ≈ 33,290 rats
So, the predicted population of Glandian rats in 2031 will be approximately 33,290.
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Sylvia conducts an experiment using two long pieces of a cord and a spherical ball that has been cut in half. The radius of the spherical ball is 8 centimeters. She wraps the first cord around the hemisphere of the ball until it is completely covered, as shown in Figure 1. She cuts the cord and removes it from the ball. She then wraps the second cord around the bottom circle of the ball until it is completely covered, as shown in Figure 2. She again cuts the cord and removes it from the circular base.
Which of the following correctly compares the lengths of the cords and best justifies the reason for this relationship?
A - The length of the first cord must be approximately equal to the length of the second cord because the surface area of the hemisphere is the same as the area of its circular base.
B - The length of the first cord must be approximately 2 times the length of the second cord because the surface area of the hemisphere is 2 times the area of its circular base.
C - The length of the first cord must be approximately 4 times the length of the second cord because the surface area of the hemisphere is 4 times the area of its circular base.
D - The length of the first cord must be approximately 8 times the length of the second cord because the surface area of the hemisphere is 8 times the area of its circular base.
The option that correctly compares the lengths of the cords and best justifies the reason for the relationship is B - The length of the first cord must be approximately 2 times the length of the second cord because the surface area of the hemisphere is 2 times the area of its circular base.
How to compare the lengths of the cords?We can compare the lengths of the cords by these steps:
First, find the length of cord needed to wrap around the hemisphere of the ball (cord 1), using the formula for the circumference of a circle is C = 2πr, where r is the radius of the circle.
Since our focus is on a hemisphere, we find half the circumference, πr only.
So, the length of cord 1 is πr = π(8) = 8π cm.
Next, we find the length of cord needed to wrap around the circular base of the ball (cord 2), using the formula for the circumference of a circle, also.
So, the length of cord 2 is 2πr = 2π(8) = 16π cm.
Then, we compare the lengths of the cords:
Length of cord 1 = 8π cm
Length of cord 2 = 16π cm
Finally, we simplify:
Length of cord 1 = π(8) = 8π cm
Length of cord 2 = 2π(8) = 16π cm
So, the length of the first cord must be approximately 2 times the length of the second cord because the surface area of a hemisphere is 2 times the area of its circular base is correct.
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What multiplies to 14 and adds to -9
The numbers which multiplies each other to give 14 and adds to give -9 is -2 and -7
How to find factors of a number?What are the factors of 14
14 = 1, 2, 7, 14
What two factors of 14 multiplies each other to give 14 and add each other to give -9
1 × 2 = 2
1 × 7 = 7
1 × 14 = 14 ; 1 + 14 = 15
2 × 7 = 14 ; 2 + 7 = 9
So,
-2 + - 7 = -9
Therefore, negative two plus negative seven multiplies to give 14 and adds to give -9
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hi please help I don't want to pick the wrong question
Answer:
B
Step-by-step explanation:
[tex]\frac{4x^{2} }{12x^{2}-4}\\ = \frac{x^2}{3x^2-1}[/tex]
4 common leke cancel kar diya bas . nothing else
what’s the area of this figure, rounded to the nearest tenth?
Answer:
198 in²
Step-by-step explanation:
triangle (A=1/2)bh [A=1/2(22×8)] b=22 H=8
rectangle (A=bh) [A= 22×5] B=22 H=5
triangle = 88
rectangle = 110
So, 88+110 = 198
