Answer:
0 = -54
Step-by-step explanation:
4(3x + 8) − 9 = 2(6x − 8) − 15
12x + 32 - 9 = 12x - 16 - 15
12x + 23 = 12x - 31
12x = 12x - 54
0 = -54
No solutions.
Best of Luck!
please help me, 20 points
The area of the shaded region is 502.4 ft^2
The area of a circle is the space occupied by a circle in a two-dimensional plane. Alternatively, the space taken up inside the boundary/circumference of a circle is called the area of the circle. The formula for the area of a circle is A = πr2, where r is the radius of the circle. The unit of area is the square unit, such as m2, cm2, in2, etc. Area of a circle = πr2 or πd2/4 in square units, where (Pi) π = 22/7 or 3.14. Pi (π) is the ratio of the circumference to the diameter of any circle. It is a special mathematical constant.
It is given that inner diameter is 36 ft and width of the ring is 4 ft
We need to find the area of the shaded region
diameter of outer ring= d1=36+4+4 = 44 ft ,
diameter of inner ring= d2=36 ft,
r1=d1/2= 44/2 = 22 ft , r2=d2/2 = 36/2 = 18 ft
Area of shaded region = Area of Outer circle - Area of inner circle
= π r1^2 - π r2^2
= π ( 22^2 - 18^2 )
= 3.14 * 160
= 502.4 ft^2
Hence the area of the shaded region is 502.4 ft^2
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The area of the shaded region is 502.4 sq. ft.
An object's area is how much space it takes up in two dimensions. It is the measurement of the quantity of unit squares that completely cover the surface of a closed figure. The word "area" refers to a free space.
According to the question,
Diameter of inner circle = 36 ft.
Radius of inner circle = 36/2 ft. =18 ft.
As the width of the ring is 4 ft. , the diameter of the outer circle = 36+4+4= 44 ft.
Radius of outer circle = 22 ft.
Area of the shaded region = Area of outer circle - Area of inner circle
= π(22)(22) - π(18)(18)
= π(484 - 324)
= 3.14 * 160
= 502.4 sq. ft.
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(1 point) how many different ways can a race with 6 runners be completed? (assume there is no tie.) your answer is : 36
There are 720 different ways can a race with 6 runners be completed.
What is a combination?
The process of combining or the condition of combining. a combination of things; an amalgamation of concepts. a grouping of notes: A chord is a grouping of notes. a grouping of people or entities acting together to impede commerce.
Here, we have
The winner can be chosen from all 6 runners, the second person can be chosen from 5 people, the third - from 4, and so on.
So the total number of possible results can be calculated as:
n = 6×5×4×3×2×1= 6!
= 720
Hence, there are 720 different ways can a race with 6 runners be completed.
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Honestly i have no clue how to do this and it’s worth 100 points so......here you go please help me
Answer:
P(x) = R(x) = -2x^2+63z
As many as possible
Infinite depending on how many people buy it.
$63.00
Best reason would be to make your dog look cool and make the person who sold it happy. Worst reason is that it is extremely expensive for something you don't need.
Step-by-step explanation:
3/m = 45/50 HELP THIS IS HARD, WILL GIVE BRAINLIST IF CORRECT ANSWER AND ANSWERED RIGHT
Step-by-step explanation:
Simplify for m by using algebra.
Divide each side by 3:
\( \frac{3m}{3} = \frac{0.95}{3} \)
\( m = \frac{19}{60} \)
A refrigerator costs $599. If the tax is 7.5%, the additional amount of money necessary to purchase the refrigerator is
$4.52
$44.93
$75.00
Answer:
44.93
Step-by-step explanation:
7.5 x 599 divided by 100 = 44.925 = 44.93
cuanto es (((5+4)+(7-3))(2+8))=
Answer:
49Step-by-step explanation:
[(5 + 4) + (7 - 3) × (2 + 8)] = ?[9 + 4 × 10] = ?9 + 40 = ?49\(\tt{ \green{P} \orange{s} \red{y} \blue{x} \pink{c} \purple{h} \green{i} e}\)
Sam drove to the mountains last weekend. There was heavy traffic on the way there, and the trip took 7 hours. When Sam drove home, there was no traffic and the trip only took 5 hours. If his average rate was 18 miles per hour faster on the trip home, how far away does Sam live from the mountains
Sam lives 162 miles away from the mountains.
Let's assume that the distance between Sam’s home and the mountains be x miles. Then, let us use the formula for distance which is:Distance = Speed × TimeFor Sam’s journey to the mountain, we know that he took 7 hours, therefore his speed was:S = D / T = x / 7For his return journey, Sam took 5 hours and he traveled 18 mph faster than he did on the way there; therefore, his speed is:S = (x / 5) + 18
Now we know that the distance he traveled to the mountains and back was the same. Therefore:Distance to the mountains = Distance from the mountainsx = (x / 7) × 2 + [(x / 5) + 18] × 2Then we simplify to get rid of the denominators:10x = 2x + 28x + 180Now we solve for x:8x = 180x = 22.5Therefore the distance between Sam's home and the mountains is 22.5 × 7 = 157.5 miles. However, that is only the distance to the mountain. We need to find the total distance of the round trip which is:Total distance = Distance to the mountains + Distance from the mountainsTotal distance = 157.5 + 157.5Total distance = 315 milesTherefore Sam lives 315 / 2 = 157.5 miles away from the mountains.
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All boundary points of a rational inequality that are found by determining the values for which the denominator is equal to zero should always be represented by plotting an open circle on a number line. B. All boundary points of a rational inequality should always be represented by plotting a closed circle on a number line. C. All boundary points of a rational inequality should always be represented by plotting an open circle on a number line. D. All boundary points of a rational inequality that are found by determining the values for which the numerator is equal to zero should always be represented by plotting an open circle on a number line.
Answer: All boundary points of a rational inequality that are found by determining the values for which the denominator is equal to zero should always be represented by plotting an open circle on a number line.
Step-by-step explanation:
Based on the options given in this question, it should be noted that the option that is true is that all boundary points of a rational inequality that are found by determining the values for which the denominator is equal to zero should always be represented by plotting an open circle on a number line.
Therefore, the correct option is A.
Please help me with trig I’d really appreciate
Answer:
2 root 10/ 7, or the second option.
Step-by-step explanation:
If a is 3, then b is root 40. (Pythagorean)
root 40= root 4x10, or 2 root 10
Tangent= opposite/hypotenuse
Tangent= 2 root 10/ 7
This will give you 35 just please help I need to do this very fast. So if you can help please do.
Answer:
52° and 38°
Step-by-step explanation:
The two angles form a singular right angle.
\((x+33)+(2x)=90\\\\x+33+2x=90\\\\3x + 33 = 90\\\\3x+33-33=90-33\\\\3x=57\\\\\boxed{x=19}\)
The value of 'x' is 19.
\(m$\angle$1 = x + 33\\\\m$\angle$1 = 19 + 33\\\\m$\angle$1 = \boxed{52}\)
The measure of angle 1 is 52 degrees.
\(m\angle2=2x\\\\m\angle2=2(19)\\\\m\angle2=\boxed{38}\)
The measure of angle 2 is 38 degrees.
Hope this helps.
i need help on the question number 9.
Answer:
B
Step-by-step explanation:
\(tan(R)=\frac{opposite}{adjacent}\)
here, both triangles are similar triangles. So both ratios must be similar.
the side opposite of H is 5. So the side opposite of angle R must also be 5. Similarly, the side adjacent to angle H is 12. So the side adjacent to R must also be 12. Thus we have:
\(tan(H)=tan(r)= \frac{5}{12}\)
So the answer is B. Hope this helps!
What is the height of the prism shown below?
25
13
7
10
help me please thank you
Answer: exponential
Step-by-step explanation:
its exponential
count the squares in each one
first is 2 squares
second is 4 squares
third is 8 squares
this is going up exponentially because the first one would be 2^1 the second would be 2^2 and the third would be 2^3
a benefit of point estimates is that they provide information about their accuracy.
t
f
Point estimates themselves do not provide information about their accuracy. The given statement is false.
Point estimates represent a single value that is used to estimate an unknown population parameter. They do not convey any information about the variability or uncertainty associated with the estimate. To assess the accuracy of a point estimate, it is necessary to calculate a measure of uncertainty, such as a confidence interval or a margin of error.
These measures provide information about the range within which the true population parameter is likely to fall. By including a margin of error or confidence interval along with the point estimate, we can gain a sense of the precision and reliability of the estimate.
In summary, point estimates alone do not provide information about their accuracy. Additional measures, such as confidence intervals or margins of error, are needed to assess the accuracy and uncertainty associated with the estimate.
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A city has 5 cm of snow on the ground before a snow storm. During the storm,
a unity feedback control system is characterized by an open-loop transfer function
G(s)H(s)=k/s(s+10)
determine the system gain k so that the system will have a damping ratio of 0.5. for this value of k, find the rise time, settling time, and peak overshoot. assume that the system is subjected to a step input of 1v
A unity feedback control system is characterized by an open-loop transfer function G(s)H(s)=k/s(s+10). The system gain k so that the system will have a damping ratio of 0.5 is 4. The corresponding rise time is 2.3s, settling time is 4.4s, and peak overshoot is 0.26.
To determine the system gain k so that the system will have a damping ratio of 0.5, we can use the equation ζ=1/2ωn. Rearranging the equation yields k=2ωn2. Using the damping ratio of 0.5, this yields k=4.
For this value of k, the rise time, settling time, and peak overshoot can be determined using the following equations:
Rise Time: Tr=4.6/ωn
Settling Time: Ts=4.4/ζωn
Peak Overshoot: Mp=e^(-ζπ/√1-ζ^2)
Given that the damping ratio is 0.5 and the system is subjected to a step input of 1V, we can determine the rise time, settling time, and peak overshoot.
Rise Time: Tr=4.6/ωn=4.6/2=2.3s
Settling Time: Ts=4.4/0.5ωn=4.4/1=4.4s
Peak Overshoot: Mp=e^(-0.5π/√1-0.5^2)=0.26
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Math on the Spot Mark said that the speed of a
housefly rounded to the nearest tenth was 1.9 meters
each second. Is he correct? If not, what is his error?
insect Speeds (meters each second)
Insect
Speed
Dragonfly
6.974
Horsefly
3.934
Bumblebee
2.861
Honeybee
2.548
Housefly
1.967
Answer:
He is incorrect
Step-by-step explanation:
In 1.967, the hundredth is greater than 5. That means you'd round up! So, the correct answer would be 2.
(I tried my best to explain)
A student prepares for an exam by studying a list of ten problems. She can solve six of them. For the exam, the instructor selects five problems at random from the ten on the list given to the students. What is the probability that the student can solve all five problems on the exam?.
0.0238 is the probability that the student can solve all five problems on the exam.
What is probability?It is the branch of mathematics concerning numerical descriptions of how likely an event is to occur, or how likely it is that a proposition is true.
Given Data
Total number of questions – 10
Questions selected randomly – 5
The total number of ways in which the teacher can set the questions is given by:
¹⁰C₅ = \(\frac{10!}{5!(10-5)!}\)
¹⁰C₅ = \(\frac{10(9)(8)(7)(6)5!}{5!(5!)}\)
¹⁰C₅ = \(\frac{10(9)(8)(7)(6)}{5!}\)
¹⁰C₅ = \(\frac{30240}{120}\)
¹⁰C₅ = 252
Here the student can solve all the 55 problems if the teacher selects them from the 66 questions that she can solve. The number of ways in which it could happen is given by:
⁶C₅ = 6
The probability of this happening is given by:
Probability = \(\frac{6}{252}\)
Probability = 0.0238
0.0238 is the probability that the student can solve all five problems on the exam.
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Suppose you have $1100 deposited at 4.5% compounded monthly. About long will it take your balance toincrease to $2700? Round your answer to the nearest tenth of a year.years
Recall the formula for compound interest
\(\begin{gathered} A=P\Big(1+\frac{r}{n}\Big)^{nt} \\ \text{where} \\ A\text{ is the accrued amount} \\ P\text{ is the principal amount} \\ r\text{ is the rate as a decimal} \\ n\text{ is the number of compounding period per year} \\ t\text{ is the time in years} \end{gathered}\)Using the formula, rearrange the equation and solve in terms of time t
\(\begin{gathered} A=P\Big{(}1+\frac{r}{n}\Big{)}^{nt} \\ \frac{A}{P}=\frac{\cancel{P}\Big{(}1+\frac{r}{n}\Big{)}^{nt}}{\cancel{P}} \\ \frac{A}{P}=\Big{(}1+\frac{r}{n}\Big{)}^{nt} \\ \ln \Big(\frac{A}{P}\Big)=\ln \Big(1+\frac{r}{n}\Big)^{nt} \\ \frac{\ln \Big{(}\frac{A}{P}\Big{)}}{n\ln \Big{(}1+\frac{r}{n}\Big{)}}=\frac{nt\ln \Big{(}1+\frac{r}{n}\Big{)}}{n\ln \Big{(}1+\frac{r}{n}\Big{)}} \\ t=\frac{\ln \Big{(}\frac{A}{P}\Big{)}}{n\ln \Big{(}1+\frac{r}{n}\Big{)}} \end{gathered}\)Substitute the given values and we get
A = $2700, P = $1100, n = 12 (12 months in a year), r = 0.045 (from 4.5%)
\(\begin{gathered} t=\frac{\ln\Big{(}\frac{A}{P}\Big{)}}{n\ln\Big{(}1+\frac{r}{n}\Big{)}} \\ t=\frac{\ln \Big{(}\frac{2700}{1100}\Big{)}}{(12)\ln \Big{(}1+\frac{0.045}{12}\Big{)}} \\ t=19.99 \end{gathered}\)Rounding the answer to the nearest tenth, the time it takes is 20 years.
a. What are the coordinates of the reflected point?
b. Reflect the coordinate points from 3(a) over the y-axis
What are the coordinates of the reflected point?
Answer: Part A is (-9, 13) Part B is (9, 13)
Step-by-step explanation:
Amanda, Bethany, and Christina are all sisters.
The sum of the ages of the sisters is 40. Amanda is 5 more than double Christina's age. The
difference between Bethany's and Christina's age is 3. Write a system for this scenario.
A+B+C= 40
2C +5=A
B-C=3
A is Amanda, B is Bethany and C is Christina
1/4 x 1/8 and simplify
Answer:
\( \frac{1}{4} \times \frac{1}{8} = \frac{1}{32} \)
Emily simplified this expression. Expression: (5−2)2+23×4 Step 1: (3)2+23×4 Step 2: 9+23×4 Step 3: 9+9×4 Step 4: 9+36 Step 5: 45 Emily made a mistake. Which step shows her first mistake? Step 1 Step 2 Step 3 Step 4
Given:
The expression is
\((5-2)^2+2^3\times 4\)
Emily simplified this expression and steps are given.
To find:
The first mistake of Emily.
Solution:
We have,
\((5-2)^2+2^3\times 4\)
Step 1: \((3)^2+2^3\times 4\)
Step 2: \(9+2^3\times 4\)
Step 3: \(9+8\times 4\)
Step 4: \(9+32\)
Step 5: \(41\)
So, she made a mistake in her third step.
Therefore, the correct option is C.
A game of "Doubles-Doubles" is played with two dice. If a player rolls doubles, the player earns 3 points and gets another roll. If the player rolls doubles again, the player earns 9 more points. How many points should the player lose for not rolling doubles in order to make this a fair game?
Answer:
27/35 points
Step-by-step explanation:
The probability of getting one double;
P(getting one double) = 5/36
Probability of getting two doubles is;
P(getting two doubles) = 1/36
Probability of getting no doubles is;
P(getting no doubles) = 1/36
For us to find the Number of points that the player should lose for not rolling doubles, we have;
(12/36) + (5(3 - x)/36) - (5x/6) = 0
(12/36) + (15 - 5x)/36 - 5x/6 = 0
Multiply through by 36 to get;
12 + 15 - 5x - 30x = 0
35x = 27
x = 27/35
Which graphic presentation of data displays its categories as rectangles of equal width with their height proportional to the frequency or percentage of the category. a. time series chart. b. proportion. c. cumulative frequency distribution. d. bar graph
Bar graphs can be used to display both discrete and continuous data, making them a versatile tool for visualizing a wide range of information.
The graphic presentation of data that displays its categories as rectangles of equal width with their height proportional to the frequency or percentage of the category is called a bar graph.
In a bar graph, the bars represent the categories being compared and are arranged along the horizontal axis, with the height of each bar representing the frequency or percentage of the category being displayed.
Bar graphs are a useful tool for presenting numerical data in a visually appealing way, making it easy for viewers to compare different categories and draw conclusions from the data.
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Find the solution of the following initial value problem.g'(x)= 3x(x^2 -1/3) ; g(1) = 2
According to the question we have the solution of the given differential equation initial value problem is: g(x) = (3/4)x^4 - x + 9/4 .
To solve the given initial value problem, we need to integrate both sides of the differential equation. We have:
g'(x) = 3x(x^2 - 1/3)
Integrating both sides with respect to x, we get:
g(x) = ∫[3x(x^2 - 1/3)] dx
g(x) = ∫[3x^3 - 1] dx
g(x) = (3/4)x^4 - x + C
where C is the constant of integration.
To find the value of C, we use the initial condition g(1) = 2. Substituting x = 1 and g(x) = 2 in the above equation, we get:
2 = (3/4)1^4 - 1 + C
2 = 3/4 - 1 + C
C = 9/4
Therefore, the solution of the given initial value problem is:
g(x) = (3/4)x^4 - x + 9/4
In more than 100 words, we can say that the given initial value problem is a first-order differential equation, which can be solved by integrating both sides of the equation. The resulting function is a family of solutions that contain a constant of integration. To find the specific solution that satisfies the initial condition, we use the given value of g(1) = 2 to determine the constant of integration. The resulting solution is unique and satisfies the given differential equation as well as the initial condition.
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what is the distance between (-6,8) and (-3,9)
A) 4
B) 6
C) square root of 10
D) square root of 15
Answer:
I would say it is close to 4, but not 4.
Step-by-step explanation:
So I rounded the distance between the 2 plots with a line, and I got either 3.8 or 3.1
square root of 10 = 3.1
square root of 15 = 3.8
The picture is my graph I used to base it, so I would generally consider how close it is to 4 saying C. Square root of 10.
(I only chose 3.1 because I went up on the graph 3 squares with my line. It did not quite reach. I went 1/10(0.1) of a whole up further, and it resulted in the square root of 10 choice.)
I Need Help With This Question
Answer:
Step-by-step explanation:
Dont do it. Just take the detention
what are the X intercept of the graph of the following equation y=x^2 - 64
Step-by-step explanation:
Here is one way :
at the x-axis intercepts , the value of 'y' = 0 (obviously)
0 = x^2 -64
x^2 = 64
x = ± 8
How old was Henry VIII, who was born in 1491 when he began his reign as king in 1509
Answer:
Henry VII died on 21 April 1509, and the 17-year-old Henry succeeded him as king.