Given
The base and height of a parallelogram is (x-7)meters and (x+9)meters respectively.
\(\begin{gathered} \text{Base(b) = (x-7)meters} \\ Height=\text{ (x+9)meters} \end{gathered}\)Formula
\(\begin{gathered} \text{The area of a Paralelogram = Base}\times Height \\ \end{gathered}\)\(\text{The area is 192m}^2\)We now substitute into the formula
\(\begin{gathered} 192=\mleft(x-7\mright)\mleft(x+9\mright) \\ 192=x^2+9x-7x-63 \\ 192=x^2+2x-63 \\ \text{REARRANGE} \\ x^2+2x-63-192=0 \\ x^2+2x-255=0 \\ \end{gathered}\)It is now Quadratic Equation
\(\begin{gathered} a=1,\text{ b=2 and c=-255} \\ x=\frac{-b\pm\sqrt[]{b^2-4ac}}{2a} \\ We\text{ can now substitute into the quadratic formula} \\ x=\frac{-2\pm\sqrt[]{2^2^{}-4\times1\times-255}}{2\times1} \\ \\ x=\frac{-2\pm\sqrt[]{4^{}--1020}}{2} \\ \\ \end{gathered}\)\(\begin{gathered} x=\frac{-2\pm\sqrt[]{1024}}{2} \\ \\ x=\frac{-2\pm32}{2} \\ \\ x=\frac{-2+32}{2}=\frac{30}{2}=15 \\ \\ or \\ x=\frac{-2-32}{2}=-\frac{34}{2}=-17 \end{gathered}\)For distance or dimension it can't be negative, so we choose the positive
x=15
Recall from the question
Base=(x-7)meters
Height= (x+9)meters
We can now replace x with 15
\(\begin{gathered} \text{Base}=\text{ 15-7} \\ \text{Base}=8m \\ \\ \text{Height =15+9} \\ \text{Height}=24m \end{gathered}\)The final answer
Base is 8m
Height is 24m
Find the missing term.
(Blank) + 7 - 3i) + (5 + 91) + 131 = 10 - 5i.
Options:
-2 - 24i
2 - 12i
-12-24
-2 + 141
Answer:
-2 - 24i
Step-by-step explanation:
a + bi + (7 - 3i) + (5 + 9i) + 13i = 10 - 5i
a + bi + 7 + 5 - 3i + 9i + 13i = 10 - 5i
a + bi + 12 + 19i = 10 - 5i
a + bi = 10 - 5i - 12 - 9i
a + bi = 10 - 12 - 5i - 9i
a + bi = -2 - 24i
(b) Notice that x=0.5 meter when θ = 45o. By approximately how many radians should you increase θ if you want the x coordinate of the point R to decrease to x = 0.45 meters? Use the tangent line approximation.
The angle is increased in approximately 0.095 radians (5.443°) for \(x = 0.45\,m\).
Based on the statement we construct the geometric diagram, by definition of tangent we have expressions for the initial and final angles (\(\theta_{1}\), \(\theta_{2}\)), in radians, of the figure:
Initial triangle
\(\tan \theta_{1} = \frac{y_{1}}{x_{1}}\) (1)
Final triangle
\(\tan \theta_{2} = \frac{y_{2}}{x_{2}}\) (2)
By using (2), the equivalence \(\theta_{2} = \theta_{1}+\Delta \theta\) and trigonometric identities we have the following expression:
\(\frac{y_{2}}{x_{2}} = \frac{\tan \theta_{1}+\tan \theta_{2}}{1-\tan \theta_{1}\cdot \tan \theta_{2}}\) (3)
By (1), we simplify the expression:
\(\frac{y_{2}}{x_{2}} = \frac{\frac{y_{1}}{x_{1}} + \tan \Delta \theta}{1-\frac{y_{1}}{x_{1}}\cdot \tan \Delta \theta}\) (3b)
If \(0 \le \Delta \theta \le \frac{\pi}{6}\), then we can use the following approximation:
\(\tan \Delta\theta \approx \Delta \theta\) (4)
Then, we reduce (3b) into an entirely algebraic expression:
\(\frac{y_{2}}{x_{2}} = \frac{\frac{y_{1}}{x_{1}}+\Delta \theta }{1-\frac{y_{1}}{x_{1}}\cdot \Delta \theta }\) (3c)
Where \(y_{2} = \sqrt{r^{2}-x_{2}^{2}}\).
Now we clear \(\Delta \theta\) within the formula:
\(\Delta \theta = \frac{\frac{y_{2}}{x_{2}}-\frac{y_{1}}{x_{1}}}{\frac{y_{1}}{x_{1}}\cdot \left(1+\frac{y_{2}}{x_{2}} \right) }\) (5)
If we know that \(x_{1} = y_{1} = 0.5\), \(r = 0.707\) and \(x_{2} = 0.45\), then we estimate the angle change:
\(y_{2} = \sqrt{0.707^{2}-0.45^{2}}\)
\(y_{2} \approx 0.545\)
\(\Delta \theta = \frac{\frac{0.545}{0.45}-1 }{1\cdot \left(1+\frac{0.545}{0.45} \right)}\)
\(\Delta \theta = 0.095\)
As \(\Delta \theta < \frac{\pi}{6}\), then the result seems to be reasonable. The angle is increased in approximately 0.095 radians (5.443°) for \(x = 0.45\,m\).
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A coach asked her athletes if they enjoy running. Sixty-five percent of the team do not like to run. Of those, 60% enjoy cycling, while 80% of those who enjoy running also enjoy cycling. The tree diagram shows how the athletes are divided into subgroups.
What is the total percentage of all the athletes who enjoy cycling?
22%
30%
40%
67%
The total percentage of all the athletes who enjoy cycling are 45%.
What is union and intersection of sets?The union of two sets A and B is the set of all those elements which are either in A or in B, i.e. A ∪ B.
The intersection of two sets A and B is the set of all elements which are common.
Given is that a coach asked her athletes if they enjoy running. Sixty-five percent of the team do not like to run. Of those, 60% enjoy cycling, while 80% of those who enjoy running also enjoy cycling.
Assume the total team is represented by 100%.
Then -
65 members do not like to run {R'}
60 members enjoy cycling {C}
80 members enjoy running and cycling both {R ∩ C}.
We can write -
{R} ∪ {C} = n{R} + n{C} + n{R ∩ C} ... Eq { 1 }
{R} ∪ {C} = (100 - n{R}') + n{C} + n{R ∩ C}
{R} ∪ {C} = 35 + 60 - 80
{R} ∪ {C} = 15
Now -
n{C} = 60 - n({R} ∪ {C}) ... Eq { 2 }
n{C} = 45
Therefore, the total percentage of all the athletes who enjoy cycling are 45%.
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Jason is only able to work 28 hours a week this month (at $12 an hour) so he is worried that he will be in a bind paying his bills. He has to pay
his rent ($875) and his car payment ($330) with insurance ($130). How miuch will Jason have left over at the end of the month?
Answer:
9
Step-by-step explanation:
28 x 4=112
112 x 12= 1344
1344-875-330-130=9
Answer:
he will have $9 left over
According to a salad recipe each serving require 6 teaspoons of vegetable oil and 9 teaspoons of vinegar and 24 teaspoons of vegetable oil were used how many teaspoons of vinegar should be used
Therefore, if 24 teaspoons of vegetable oil were used, we would need 16 teaspoons of vinegar to make the recipe correctly.
According to a salad recipe, each serving requires 6 teaspoons of vegetable oil and 9 teaspoons of vinegar. If 24 teaspoons of vegetable oil were used, we can determine the amount of vinegar needed for the recipe to be correct as follows:
First, we must determine the ratio of vinegar to oil in the recipe. To do this, we divide the amount of vinegar needed per serving (9 teaspoons) by the amount of oil needed per serving (6 teaspoons):
9 ÷ 6 = 1.5
This means that for every 1.5 teaspoons of oil used, we need 1 teaspoon of vinegar. Next, we use this ratio to determine the amount of vinegar needed when 24 teaspoons of oil are used:
1.5 ÷ 1 = 1.5
(teaspoons of oil per 1 teaspoon of vinegar)
24 ÷ 1.5 = 16
(teaspoons of vinegar needed)
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The function h is a quadratic function whose graph is a translation 7 units left and 8 units up of the function f(x)=x². What is the equation of h in vertex form and in the form y = ax² +bx+c?
Answer:
The vertex form of a quadratic function is given by f (x) = a(x - h)2 + k, where (h, k) is the vertex of the parabola.
Step-by-step explanation:
If Ac= 23 cm, find the length of ec
Answer:
sorry for delay. 37.3 is the answer.
Step-by-step explanation:
The length of arc EC, in the given circle is: 37.3 cm
What is the Length of an Arc?Length of arc = ∅/360 × 2πr
Given the following:
Radius (r) = FA = 23 cm
∅ = m∠EFC = 180 - 87 = 93°
Length of arc EC = 93/360 × 2π(23)
Length of arc EC = 0.258 × 144.5
Length of arc EC = 37.3 cm
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Simplify 72y^4/8y^7
72y^4
———
8y^7
Step-by-step explanation:
hi hi hi nice to meet you meet you
What kind of angle is this?
>) obtuse angle
acute angle
straight angle
right angle
Answer:
acute?
Step-by-step explanation: wheres the shape??
Answer: no picture?
Step-by-step explanation:
The physical plant at the main campus of a large state university receives daily requests to replace fluorescent light bulbs. The distribution of the number of daily requests is bell-shaped and has a mean of 47 and a standard deviation of 7. Using the empirical rule (as presented in the book), what is the approximate percentage of lightbulb replacement requests numbering between 47 and 68
Answer:
The approximate percentage of lightbulb replacement requests numbering between 47 and 68 is 49.85%.
Step-by-step explanation:
The Empirical Rule states that, for a normally distributed random variable:
Approximately 68% of the measures are within 1 standard deviation of the mean.
Approximately 95% of the measures are within 2 standard deviations of the mean.
Approximately 99.7% of the measures are within 3 standard deviations of the mean.
In this problem, we have that:
Mean of 47
Standard deviation of 7
What is the approximate percentage of lightbulb replacement requests numbering between 47 and 68?
The normal distribution is symmetric, which means that 50% of the measures are below the mean and 50% of the above.
Between 47 and 68:
68 = 47 + 7*3
So 68 is three standard deviations of the mean.
Of the 50% above the mean, approximately 99.7% are between the mean of 47 and 3 standard deviations above the mean, which is 68. So
0.5*0.997 = 0.4985
0.4985*100 = 49.85%
The approximate percentage of lightbulb replacement requests numbering between 47 and 68 is 49.85%.
How to get the equation
The equation of the line passing through the points (-4, -3) and (2, -1) is y = (1/3)x - (5/3).
What is the point-slope form of a line?To find the equation of a line given two points, we can use the point-slope form of the equation.
y - y₁₁ = m(x - x₁)
where m is the slope of the line, and (x₁, y₁) is one of the given points.
First, we need to find the slope of the line. We can use the formula:
m = (y₂ - y₁) / (x₂ - x₁)
where (x₁, y₁) and (x₂, y₂) are the two given points.
m = (-1 - (-3)) / (2 - (-4))
m = 2/6
m = 1/3
Now we can choose one of the given points and substitute its coordinates into the point-slope form, along with the slope we just found:
y - (-3) = (1/3)(x - (-4))
Simplifying this equation, we get:
y + 3 = (1/3)(x + 4)
y = (1/3)x - (5/3)
Therefore, the equation of the line passing through the points (-4, -3) and (2, -1) is y = (1/3)x - (5/3).
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A fast-food worker works Monday through Friday, 8 hours per day. Daily, the worker receives a -hour break in the morning, a -hour break for lunch, and a -hour break in the afternoon. How many hours of break time does the worker receive per day?
The worker recieves 3 hours of break time per day.
What are algebraic expressions?In mathematics, an expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.Mathematical symbols can designate numbers (constants), variables, operations, functions, brackets, punctuation, and grouping to help determine order of operations and other aspects of logical syntax.Given is that a a fast-food worker works Monday through Friday, 8 hours per day. Daily, the worker receives a hour break in the morning, a hour break for lunch, and a hour break in the afternoon.
The worker recieves three breaks, meaning it recieves 3 hours of break time per day.
Therefore, the worker recieves 3 hours of break time per day.
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Exit Ticket: Show all your work
-4x - 6 = -14
what does x equal ? show yur work
Answer:
-4x - 6 = -14
+ 6. + 6
-4x = -8
——————
-4. -4
—————
x = 2 :) copy it down like that :)
Step-by-step explanation:
You own Company X. When you started the company, you initially invested $12,000.
You also borrowed $12,000 through a five-year (long-term) loan, of which you have
paid back $2,018. You have retained $1,291 in earnings to be reinvested in the
company, and you decided to put $1,000 of it aside for a long-term investment. The
company owns land and a building worth $8,878 and equipment worth $4,230. As of
today, the company has $8,250 in cash, $1,225 in inventory, and is due to receive
accounts worth $675. However, the company owes its suppliers $485 and has a
$500 loan to pay off in the next six months.
You invested $12,000 in the company when you originally started it. Additionally, you borrowed $12,000 for a five-year (long-term) loan and paid back $2,018 of it.
What does "company" mean?Businesses, a noun in plural. a group of people who are connected or who have joined together. a guest or guests: We're having people over for dinner. a collection of individuals together for social purposes. association, camaraderie, and fellowship She is a lot of joy to be around.
The Old French word "compagnie," which was first used in the Salic code and meaning "one who eats bread with you," is where the English word "company" originates. To describe a "society, friendship, closeness, or body of troops," it was first used in 1150.
You invested $12,000 in the company when you originally started it. Additionally, you borrowed $12,000 for a five-year (long-term) loan and paid back $2,018 of it.
Total Amount to be when start the company is $12000 + $12000
= $24000
Out of which company owns land and a building worth $8,878 and equipment worth $4,230 and have retained $1,291 in earnings to be reinvested in the company, and you decided to put $1,000 of it aside for a long-term investment.
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five thousand, three and
fourteen ten-thousandths.
The angle times three out of 10 of the circle what is the measure of the angle
The measure of the angle that turns through 3/10 of the circle is 108 degrees.
Define angleAn angle is a geometric figure that is formed by two rays that share a common endpoint, which is called the vertex of the angle. The rays are referred to as the sides or legs of the angle. Angles are typically measured in degrees, with a full circle measuring 360 degrees.
Angles can be classified based on their degree of measurement: acute angles are less than 90 degrees, right angles are exactly 90 degrees, obtuse angles are greater than 90 degrees but less than 180 degrees, and straight angles are exactly 180 degrees.
Since a full circle has 360 degrees, 3/10 of the circle can be represented as:
(3/10) x 360 degrees = 108 degrees
Therefore, the measure of the angle that turns through 3/10 of the circle is 108 degrees.
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The complete question is :
The angle turns through 3/10 of the circle. What is the measure of the angle?
he roots of the function f(x) = x2 – 2x – 3 are shown. What is the missing number?
x = –1 and x =
Points A and B are on opposite sides of a lake. Another point, C. is 94.4 meters from Angle A. The measure of Angle A is 72° and the measure of Angle C is 30°. Find the distance between A and B.
To find the distance between points A and B, we can use trigonometry and the given information.
Let's label the distance between A and B as "d". We know that point C is 94.4 meters away from point A. From angle A, we have the measure of 72°, and from angle C, we have the measure of 30°.
Using trigonometry, we can use the tangent function to find the value of "d".
tan(72°) = d / 94.4
To solve for "d", we can rearrange the equation:
d = tan(72°) * 94.4
Using a calculator, we can evaluate the expression:
d ≈ 4.345 * 94.4
d ≈ 408.932
Therefore, the distance between points A and B is approximately 408.932 meters.
Please help I need an answer quick too!!!!
Is 7 a solution of 5x - 3 = 12 ? Justify your answer
Answer:
Step-by-step explanation:
NO x=3
Factor out the monomial: 18x^2 + 2
Answer:
Step-by-step explanation:
18x² + 2 = 2 * 9x² + 2 *1
= 2*(9x² + 1)
An economy is operating with output $400 billion above its natural level, and fiscal policymakers want to close this expansionary gap. The central bank agrees to adjust the money supply to hold the interest rate constant, so there is no crowding out. The marginal propensity to consume is 3/4, and the price level is completely fixed in the short run.
to close the expansionary gap, the government would need to increase or decrease spending by $ billion.
Hence, to close the expansionary gap, the government would need to decrease spending by $100 billion.
To close the expansionary gap, the government would need to decrease spending by $100 billion.
The formula to calculate the change in equilibrium output due to a change in government spending is:
∆Y = (∆G / (1 - MPC))
Where:
∆Y = change in equilibrium output
∆G = change in government spending
MPC = marginal propensity to consume
Here, the output is $400 billion above its natural level, and the central bank agrees to adjust the money supply to hold the interest rate constant, so there is no crowding out. Therefore, we can assume that the change in government spending (∆G) would have a one-to-one effect on the equilibrium output (∆Y).
Given that MPC = 3/4, we can plug in the values into the formula:
400 = (∆G / (1 - 3/4))
∆G = (1 - 3/4) * 400
∆G = (1/4) * 400
∆G = 100
Hence, to close the expansionary gap, the government would need to decrease spending by $100 billion.
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In ASTU, the measure of ZU=90°, the measure of ZT=32°, and US = 5.8 feet. Find the length of ST to the nearest tenth of a foot.
Answer:
Step-by-step explanation:
10.9
Which of these is NOT a Pythagorean triple?
If the length and width of a rectangle are
each halved, by what percent is the area decreased?
30 POINTS!
Answer:
75%
Step-by-step explanation:
Let us being by constructing a rectangle. The length is x, and the width is y. The area is xy units squared.
Now, let's divide that by two. X is now x/2, and y is now y/2. The area is now xy/4.
We have xy as the original area, and xy/4 as the new area. The /4 indicates that the new rectangle is a fourth of what it was before, meaning it is only 25 percent as much.
Therefore, it had decreased 75perdent
A cereal box has dimensions of 12 inches, (7)3/4 inches, and 2 inches. A pastry box has a dimensions of (3)2/3 inches, (3)1/2 inches, and (2)1/3 inches. What is the difference in volume, cubic inches, between the two boxes. show your work
The difference in volume between the two boxes would be = 156in³
How to calculate the difference in volume between the boxes?To calculate the difference in volume between the boxes is the find the individual volume of the boxes using the formula ;
Volume = length×width×height.
For box 1 = length = 12in, width = 7¾in, height= 2in
Vol = 12×7¾×2 = 186in³
For box 2; length = 3⅔in, width = 3½in, height= 2⅓in
Volume = 3⅔×3½×2⅓ = 30
The difference = 186-30 = 156in³
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Y = 5x + 4
Y = 3x+10
solve for the solution (x,y)?
Answer:
The solution (x,y) is (3,19).
Step-by-step explanation:
We are given two equations for y.
y = 5x + 4
y = 3x + 10
They are equal, which means that we can find x. So
5x + 4 = 3x + 10
2x = 6
x = 3
With x, we can find y:
y = 5*3 + 4 = 19
So the solution (x,y) is (3,19).
Please help! Due soon! Graph the equation using the point and the slope.
y-3=1/5(x-1)
Answer:
Check out the image below!
Step-by-step explanation:
For
90° < 0 < 270°
, which of the primary trigonometric functions may have positive values?
Answer:
sine and tangent
will be positive.
Jquan rides his bike at the rate of 16 m in eight minutes how long does it take him to travel per meter
Answer:
.5 of a minute
Step-by-step explanation: