Answer:
324 in^2
Step-by-step explanation:
If you transfer the 9 ft to inches you get 108 in
108x3=324
Answer:
21
Step-by-step explanation: 9 + 9 = 18 , 3 + 3 = 6 , 18 + 6 = 21.
Geometry Question!!!!
Answer:
D
Step-by-step explanation:
If AB is a tangent, then angle A must be a right angle.
If angle A is a right angle, then triangle ABC is a right triangle and will work in the Pythagorean theorem formula.
a^2 + b^2 = c^2
8^2 + 16^2 = 20^2
64 + 256 = 400
320 = 400
Since 320 = 400 is false, angle A is not a right angle, and AB is not a tangent to circle C.
Answer: D
PLEASE HELP ME!!!!!!!!!!!! For her birthday party Ms. Burke mixed together 9 gal. of Hawaiian Punch fruit punch and 4 gal. of Shoprite Fruit Punch B. Hawaiian Punch Fruit Punch contains 5% fruit juice and Shoprite Fruit Punch contains 1% fruit juice. What percent of the mixture is fruit juice?
Answer:
1%
Step-by-step explanation:
Bruce's speed when swimming in still water is 5 meters/second. He is swimming in a direction 25° east of north. The current is moving 3.5 meters/second at an angle of 60° west of south. Identify Bruce's vector, the current's vector, and the vector representing Bruce's actual motion.
Answer:
<2.1130913087, 4.53153893518>; <−3.03108891325, −1.75>; <−0.91799760455, 2.78153893518>
Step-by-step explanation:
Bruce's vector is <5cos(90-25), 5sin(90-25)> = <5cos(65), 5sin(65)> ≈ <2.1130913087, 4.53153893518>
The wind's vector is <3.5cos(270-60), 3.5sin(270-60)> = <3.5cos(210), 3.5sin(210)> ≈ <−3.03108891325, −1.75>
You add them together to find his actual motion:
<−0.91799760455, 2.78153893518>
The vector representing Bruce's actual motion is [tex]<-0.91799760455, 2.78153893518>[/tex] and this can be determined by using the given data.
Given :
Bruce's speed when swimming in still water is 5 meters/second. He is swimming in a direction 25° east of north. The current is moving 3.5 meters/second at an angle of 60° west of south.The following steps can be used in order to identify Bruce's vector, the current's vector, and the vector representing Bruce's actual motion:
Step 1 - According to the given data, Bruce's speed when swimming in still water is 5 m/s and in a direction 25° east of north.
Step 2 - So, Bruce's vector is given below:
[tex]\rm = <5 cos(90-25),5sin(90-25)>[/tex]
[tex]\rm = <5 cos(65),5sin(65)>[/tex]
[tex]\rm = <2.1130913087, 4.53153893518>[/tex]
Step 3 - Also it is given that the current is moving 3.5 m/s at an angle of 60° west of south. So, wind's vector can be calculated as:
[tex]\rm = <3.5 cos(270-60),3.5sin(270-60)>[/tex]
[tex]\rm = <3.5 cos(210),3.5sin(210)>[/tex]
[tex]\rm = <-3.03108891325, -1.75>[/tex]
Step 4 - So, the actual motion is given by:
[tex]= <-0.91799760455, 2.78153893518>[/tex]
For more information, refer to the link given below:
https://brainly.com/question/13188123
what is absolute diviation
It’s the average distance between each data value and the mean.
Answer:
one measure of variability; the average of how much the individual scores of a data set differ from the mean of the set. - abbreviation: MAD
Step-by-step explanation:
Please Help!!!! ASAP!! I will mark Brainliest!!! Please awnser CORRECTLY!! No guessing.
Answer:
C
Step-by-step explanation:
f(5) means we must plug in 5 wherever we see an x in the function.
[tex]f(x) = \frac{1}{9} 3^{x}[/tex]
[tex]f(5) = \frac{1}{9} 3^{5}[/tex]
[tex]f(5) = \frac{1}{9} * 243[/tex]
[tex]f(5) = \frac{243}{9} = 27[/tex]
So f(5) = 27! The answer is C.
The original price of a leather jacket is $320. For a weekend sale, the jacket is reduced to $256. Which is the percent discount of the jacket from the original price?
Answer:
80%
Step-by-step
[tex]\frac{256}{320}[/tex][tex]\frac{x}{100}[/tex]
Cross multiply and divide
HELPPP URGENT URGENT HELP PLEASE!
in the diagram below what is the objects surface area?
if you answer this not only you will get hella points you will be considered SUPERIOR and a GOD OF BRAINLY
Answer:
Surface Area = 4928 ft^2
Step-by-step explanation:
Easy way -
First find the area of each face i.e.
56 * 20 = 1120
65 * 20 = 1300
33 * 20 = 660
2 * (1/2 * 56 * 33) = 1848
Total = 4928 ft^2
help plsssssssssssssssssssss again 4
I need help! Algebra 2 homework and please explain the work :) (Part 3)
Answer:
Probability of choosing a Diamond= 9/26
Choosing a card that is not a club is=19/26
Step-by-step explanation:
These are the answers because...
Step one Add up all of the rows. 5+9+7+5=26Step two, To find the probability of diamonds we need to take the total number of all the rows which is 26. And the number of diamonds which is 9. Then put it into a fraction 9/26Step three to find the probability of choosing a card that is not a club, we would have to add up all the rows except the clubs which is 19, then out it over the total number which is 26. So 19/26Hope this helped Please comment below on how you think my answer is. I would appreciate it Brainlyyou score a 65% on your ap statistics exam and a 78% on your economics exam. the AP statistics scores were normally distributed with an average of 60% and a standard deviation of 6%. the economics scires were also normally distributed with an average of 75% and the standard deviation of 2.5%. In which class did you perform better relative to the class average? be sure to justify your answer
Answer:
You performed better relative to the class average in your economics class.
Step-by-step explanation:
There are two classes.
AP statistics class and Economic class
Using the z score formula,
z = (x-μ)/σ, where
x is the raw score
μ is the population mean
σ is the population standard deviation.
In the AP statistics class, you scored a percentage of 65%. The class average was 60%
x is the raw score = 65%
μ is the population mean = 60%
σ is the population standard deviation = 6%
z = (x-μ)/σ
z = (65 - 60)/6
z = 5/6
z = 0.8333333333
In the Economics classes, you scored a percentage of 78% with a class average of 75%
x is the raw score = 78%
μ is the population mean = 75%
σ is the population standard deviation = 2.5%
z = (x-μ)/σ
z = (78 - 75)/2.5
z = 3/2.5
z = 1.2
Comparing the z score of both exams taken from different classes,we can see that your z score was higher in the Economics class compared to the A.P statistics class.
Therefore, you performed better relative to the class average in your economics class.
Please help ASAP! I will mark Brainliest! Please answer CORRECTLY! No guessing!
Answer:
The answer is D
I hope this is right
A motorcycle drives on a ramp in order to enter the parking garage. The ramp has a height of 4 feet and a horizontal length of 20 feet. What is the angle of the ramp?
Write the denominator of the fractiona 7/20 as the product of prime factors
Answer:
Step-by-step explanation:
prime factors of 20 = 2 * 2 * 5
[tex]\frac{7}{20}=\frac{7}{2*2*5}[/tex]
You roll a six-sided die. What is the probability that it is a 5 or an even number? Write your answer as a decimal rounded to the nearest
thousandth
Answer:
.667
Step-by-step explanation:
4/6 = 2/3 = .667
The probability that it is a 5 or an even number is 5/6 or 0.834 if
you roll a six-sided die.
What is probability?It is defined as the ratio of the number of favorable outcomes to the total number of outcomes, in other words, the probability is the number that shows the happening of the event.
Number of total outcomes = 6
P(5) = 1/6
P(even) = 4/6
The probability that it is a 5 or an even number:
P = 1/6 + 4/6 = 5/6
P = 0.834
Thus, the probability that it is a 5 or an even number is 5/6 or 0.834 if
you roll a six-sided die.
Learn more about the probability here:
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Find the area of a circle with a diameter of 56 millimeters.
Answer: 784π mm²
Step-by-step explanation: To find the area of a circle, start with the formula for the area of a circle which is shown below.
Area = πr²
Notice that here, we're given the diameter instead of the radius.
Remember that the radius is equal to half of the diameter. So the radius of this circle will be equal to half 56 millimeters or 28 millimeters.
So plugging into the formula, we have (π)(28 mm)².
A common mistake is to plug 56 millimeters into the formula but remember that we must plug in the radius and not the diameter.
Multiplying, (28 mm)² is equal to (28 mm)(28 mm) or 784 mm².
So we have 784π mm².
So the area of the circle is 784π mm².
A company surveyed 140 people and found that 35 of them went to the library at least once per week. If the town these people lived
in has 2,100 residents, how many people do you predict go to the library at least once per week?
Answer:
525
Step-by-step explanation:
Set up a ratio 35/140=?/2100. Solve this to get the answer.
Mal is putting money into a savings account. She starts with $350 in the savings account, and each week she adds $30.
Let S represent the total amount of money in the savings account (in dollars), and let W represent the number of weeks Mal has been adding money. Write an
equation relating S to W. Then use this equation to find the total amount of money in the savings account after 19 weeks.
Answer:
Mal starts with 350 dollar
Each week she adds $30.
W is number of weeks Mal adds money.
S is total amount of money in her account.
=> S =30W + 350
After W = 19 weeks, Mal will have 30 x 19 + 350 = 920 dollar
The triangle has side lengths 7, 10, and 12. Is it a right triangle? Explain your reasoning.
Answer: it is not a right triangle
12^2=7^2+10^2
144=49+100
144=149
To prove this we try the pitagor teorem which the largest side is the hypotenuse
It is not a right triangle.
We have given that,
The triangle has side lengths 7, 10, and 12.
What is the Pythagoraus theorem?
[tex]hypotenous^2=side^2+side^2[/tex]
12^2=7^2+10^2
144=49+100
144=149
The pitagor theorem which the largest side is the hypotenuse.
To learn more about the triangle visit:
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Jamie wants to put tiles on the walls and floor of his room (but not on the ceiling). The length of his room is 10 ft, the width is 14 ft, and the height is 12 ft. If each tile is 1 ft long and 1 ft wide, how many tiles will Jamie need/
Answer:
Jamie would need 140 tiles.
Which statement about liters and milliliters is true?
Answer:
Lesson Summary
A milliliter is a metric unit used to measure capacity that's equal to one-thousandth of a liter. Capacity is the amount of liquid a container can hold. One liter contains 1,000 milliliters, so to convert liters to milliliters you multiply the number of liters times 1,000.
Look at the equivalent metric units of capacity. When converting from a larger unit to a smaller unit, multiply by 1,000. When converting from a smaller unit to a larger unit, divide by 1,000. Liters are larger than milliliters, so multiply by 1,000.
Step-by-step explanation:
Sasha is solving a multi-step equation. Her first step is shown below.
Equation: 3. - 8- 10x = 3(2x +3)
Step 1: 3 -- 10x - 8 = 6x + 9
Which properties did Sasha use to get to Step 1? Select all that apply.
addition property of equality
associative property of addition
commutative property of addition
multiplication property of equality
distributive property of multiplication over addition
Answer:
On the left side, she used commutative property
On the right side, she used distributive property
Step-by-step explanation:
x^2+y=3
x^2-y=5
solve by using substitution
show work please
Answer:
x = 2
y = -1
Step-by-step explanation:
x² + y = 3 --------------------(i)
x² = 3 - y
x² - y = 5 ---------------------(ii)
substitute x² = 3 - y in equation (ii)
x² - y = 5
3 - y -y = 5 {Add like terms}
3 - 2y = 5 {Subtract 3 from both sides}
3 - 2y -3 = 5 - 3
-2y = 2 {divide both sides by -2}
-2y/-2 = 2/-2
y = -1
Substitute the value of y in equation (i)
x² + y = 3
x² - 1= 3 {Add 1 to both sides}
x² - 1 + 1 = 3+ 1
x² = 4
x = √4
x = 2
Please help (Question is on the picture )
Answer:
$0.50
Step-by-step explanation:
2.50 x .80 = 2
2.50 - 2 = 0.50
really need brainliest!!
Answer:
$4.50
Step-by-step explanation:
You move the decimal two places to the left for 80% and get .8
Then, do .8 x 2.50 = 2
2, is the 80% so since it is marked up, you add 2.50 + 2
This equals $4.50.
I really need help please.
I need the 8 characteristics of a square in the quadrilaterals!
I found some of them in internet but is very confusing, please heeeeeeelp :"(
Answer:
In Euclidean geometry, a quadrilateral is a four-sided 2D figure whose sum of internal angles is 360°. The word quadrilateral is derived from two Latin words ‘quadri’ and ‘latus’ meaning four and side respectively. Therefore, identifying the properties of quadrilaterals is important when trying to distinguish them from other polygons. So, what are the properties of quadrilaterals? There are two properties of quadrilaterals:
Step-by-step explanation:
factor: 10xsquared -11x-6=
Answer:
(5x+2)(2x-3)
Step-by-step explanation:
this is the answer
I need help! Algebra 2 homework and please explain the work :) (Part 2)
Answer:
3. 1/28
4. About 7.11%
Step-by-step explanation:
3.
Since two of the eight ads are by a local retailer, the probability of picking either one once is 2/8=1/4. However, the second time, since on of the ads has already been used and there are a total of 7 left, the new probability is 1/7. Multiplying these two together, you get 1/4*1/7=1/28.
4.
To find the probability, you need to find the area of the smaller triangle and the rest. The formula for the area of an equilateral triangle is [tex]\frac{\sqrt{3}}{4}a^2[/tex], meaning that the area of the big triangle is [tex]56.25\sqrt{3}[/tex] and the area of the little triangle is [tex]4\sqrt{3}[/tex]. [tex]\frac{4\sqrt{3}}{56.25\sqrt{3}}\approx 7.11\%[/tex]. Hope this helps!
Una caja grande cuesta lo mismo que tres pequeñas. Si 7 cajas grandes y 4 pequeñas cuestan $12 más que 4 grandes y 7 pequeñas ¿Cuál es el sistema de ecuaciones que modela el sistema?
Answer:
[tex] x = 3y [/tex]
[tex]7x+4y= 12 + 4x+7y[/tex]
Step-by-step explanation:
Para resolver la pregunta, basta con definir variables adecuadas y traducir cada relación. Sea x el costo de una caja grande e y el costo de una caja pequeña. Tenemos que el costo de una caja grande es igual a 3 cajas pequeñas. Es decir, x = 3y. Luego, tenemos que
[tex]7x+4y= 12 + 4x+7y[/tex]
pues al sumarle 12 al costo de 4grande y 7 pequeñas obtenemos el costo de 7 grande y cuatro pequeñas. De aquí, el sistema de ecuaciones que modela el sistema es
[tex] x = 3y [/tex]
[tex]7x+4y= 12 + 4x+7y[/tex]
The table represents the equation y=8x what y-value is missing from the table
Answer:
Step-by-step explanation:
There must be an attachment. I have no knowledge of what to solve for, unless you can tell or show me the missing pieces.
Answer: 1, 3 , 5, and 6
I took the test have a great day!
What is the axis of symmetry?
Answer:
(-1,-4)
Step-by-step explanation:
that's the answer
In the United States, birth weights of newborn babies are approximately normally distributed with a mean of ? = 3,500 g and a standard deviation of ? = 500 g. According to the empirical rule, 68% of all newborn babies in the United States weigh between and .
Answer:
3000 and 4000
95% of all newborn babies in the United States weigh between *2500g and 4500g*
99.7% of all newborn babies in the United States weigh between *2,000g and 5,000g*
Step-by-step explanation:
Using the Empirical Rule, it is found that 68% of all newborn babies in the United States weigh between 3,000g and 4,000g.
What is the Empirical Rule?It 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, the mean is of 3,500 g with a standard deviation of 500 g, hence:
3500 - 500 = 3,000 g.
3500 + 500 = 4,000 g.
Hence, 68% of all newborn babies in the United States weigh between 3,000g and 4,000g.
More can be learned about the Empirical Rule at https://brainly.com/question/24537145
