Answer:
a.1633rad/min
b.1715feet/min
Step-by-step explanation:
We are given that
Diameter of wheel, d=2.1 feet
Radius of wheel, r=[tex]\frac{d}{2}=\frac{2.1}{2}[/tex]feet
Rate=260 rev/min
a. We have to find the angular speed of the wheel in rad/min
1 rev=[tex]2\pi[/tex]radian
Where [tex]\pi=3.14[/tex]
Using the value
Angular speed=[tex]260\times 2\times 3.14/min[/tex]
Angular speed,[tex]\omega=1633rad/min[/tex]
(b)
Speed=[tex]r\omega[/tex]
Using the formula
Speed of the cyclist=[tex]\frac{2.1}{2}\times 1633[/tex]feet/min
Speed of the cyclist=1714.65[tex]\approx 1715[/tex]feet/min
What is the maximum integer value that
satisfies the inequality 5x - 11 < 43?
Answer:
If you're asking for x it's 10
Step-by-step explanation:
5x - 11 < 43
5x < 54
The maximum value of x is 10 (because 5x10<54)
50 PTS! PLEASE HELP me OUT!
Answer:
my thing is being weird so i cant really help. lo siento
i am bord
Step-by-step explanation:
Glen swims to 2/3 mile on Monday, 3/4 mile on Wednesday, and 5/6 mile on Friday. What is the total distance Glenn swims on those three days? Show your work
Answer:
In total, Glen ran 2 and 1/4 miles.
232. Сколько решений имеет уравнение | х + 3 | -один?
Answer: уравнение имеет 2 решения:
x₁ = - 4; x₂ = - 2.
Step-by-step explanation:
Ix + 3I = 1
1) x + 3 = 1
x + 3 - 3 = 1 - 3
x = -2
2) - (x + 3) = 1
x + 3 = - 1
x + 3 - 3 = - 1 - 3
x = - 4
Question 7
Two sides of a triangle are given as 2 and 5. Which answer below could be the
third side?
3
10
7
5
You can use the Law Of Sins:
a / sin A
b / sin B
c / sin C
(hope this helps, really sorry if i doesnt :/ )
Answer: 10
Step-by-step explanation:
i need help with this .
Answer: electricity can be used to create magnetism
Step-by-step explanation:
Use your knowledge of Greek and Latin roots to find the word which best replaces the underlined word.
The new student seemed to be rather amiable.
a.
smart
c.
likeable
b.
mean
d.
dishonest
Please select the best answer from the choices provided
A
B
C
D
Answer:
ITS C
Step-by-step explanation:
\250 doctors from three countries in Europe meeting in a conference to decide whether to approve a new vaccine for the flu. Among these are 115 Germans, 65 French, and 70 Englishmen. We also know that, 75% of the Germans, 60% of the French and 65% of the Englishmen are in favor of using the new vaccine. (a) What is the probability that a randomly chosen doctor is in favor of the vaccine
Answer:
0.683 = 68.3% probability that a randomly chosen doctor is in favor of the vaccine
Step-by-step explanation:
(a) What is the probability that a randomly chosen doctor is in favor of the vaccine
75% of 115/250 = 0.46(German).
60% of 65/250 = 0.26(French).
65% of 70/250 = 0.28(Englishmen). So
[tex]p = 0.75*0.46 + 0.6*0.26 + 0.65*0.28 = 0.683[/tex]
0.683 = 68.3% probability that a randomly chosen doctor is in favor of the vaccine
To find the Volume of a Cylinder, we use the formula:
V=trah
To find the Volume of a Cone, we use the formula:
V = žar?h
To find the Volume of a Sphere, we use the formula:
V = ur
Answer:
the correct anser is B
Step-by-step explanation:
Calculate the area of the shape on all the corners
Can you help me solve this on plzz
Answer:
don't know what to help you with you are smart enough to know
3 < x/2 + 1=? I need help !
i need help finding the area of the shape.
Answer:
37.68 units²
Step-by-step explanation:
(3/4)(3.14)r²
(3/4)(3.14)(4²)
37.68
Add 3 to the product 10 and 4
Answer:
The product of" , means multiply , the product of 10 and 4 is 40 , plus 3, 43?
The solution of the expression is,
⇒ 43
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
We have to given that;
The expression is,
⇒ Add 3 to the product 10 and 4
Now, We can simplify as;
⇒ 3 + (10 × 4)
⇒ 3 + 40
⇒ 43
Thus, The solution of the expression is,
⇒ 43
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Zoo admission costs $6 for children and $9 for adults. On Monday, 2200 people visit the zoo and the zoo collects $14,850 in admissions.
a. Write a system of linear equations that represents this situation. Let x represent the cost of a ticket for a child and let y represent the cost of a ticket for an adult.
System of equations:
Answer:
There are 1650 child visitors and 550 adult visitors
Step-by-step explanation:
Use this step by step that was already used before to answer this, it's a png file.
A system of linear equations that represents this situation is,
⇒ x + y = 2200
⇒ 6x + 9y = 14,850
Where, x represent the cost of a ticket for a child and let y represent the cost of a ticket for an adult.
What is linear expression?A linear expression is an algebraic statement where each term is either a constant or a variable raised to the first power.
Given that;
Zoo admission costs $6 for children and $9 for adults.
And, On Monday, 2200 people visit the zoo and the zoo collects $14,850 in admissions.
Let x represent the cost of a ticket for a child and let y represent the cost of a ticket for an adult.
Hence, We can formulate;
A system of linear equations that represents this situation is,
On Monday, 2200 people visit the zoo.
So, we get;
⇒ x + y = 2200 .. (i)
And, Zoo admission costs $6 for children and $9 for adults and the zoo collects $14,850 in admissions.
So, We get;
⇒ 6x + 9y = 14,850 .. (ii)
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If 2 /10 = 1/5, how many fifths must be added together to make 6/10 ?
Answer:
3, fifths should be added.
2/10 = 1/5
4/10 = 2/5
6/10 = 3/5
Divide the tenth fractions by two, to get the anwser on the right.
Answer:
3......
Step-by-step explanation:
6 divided by 2 is 3
EASY!!!
write the equation of the line
Answer:
y= -2/3x+7
Step-by-step explanation:
65 % of 60 is what number?
Answer:
39
Step-by-step explanation:
Answer:
39
Step-by-step explanation:
because i used a percentage calculator
Consider the equation 4x=8.
Which value could be substituted x to make the equation TRUE?
Answer:
2
Step-by-step explanation:
4 times 2 is 8
What is the multiplier for a decrease of 42%
Answer:
x0.58
Step-by-step explanation:
1-0.42=0.58
:)
Which inverse operations could you use to solve the equation m/5 - 8 = -6? Select two answers.
A Add 8 to each side and then divide each side by 5
B. Add 8 to each side and then multiply each side by 5
C. Multiply each side by 5 and then add 40 to each side
D. Subtract 8 from each side and then multiply each side by 5
E Multiply each side by 5 and then add 8 to each side
Answer:
B and C seem to be the correct answers!
Hope this helps!
Find the sales tax. Then find the total cost of the item. Sales Tax Selling Price Rate of Sales Tax Sales Tax $60.00 3% ?
Answer:
$61.80
Step-by-step explanation:
60 increase 3% =
60 × (1 + 3%) = 60 × (1 + 0.03) = 61.8
Answer:
Sales tax:1.80 total cost:61.80
Step-by-step explanation:
Price x sales tax rate = sales tax
60 x .03=1.80
price + sales tax = total cost
60 + 1.80=61.80
Study the data set shown. Then answer the questions below.
a. Any number that is not the minimum or maximum could be removed without changing the range.
b. Removing the number 97 changes the range.
What is set ?
In mathematics, a set is a collection of distinct objects, called elements or members, that are treated as a single entity. Sets can contain any type of object, such as numbers, letters, or other mathematical objects.
To find a number that could be removed from the data set without changing the range, we need to determine the minimum and maximum values in the set. In this case, the minimum value is 53 and the maximum value is 97, so any number that is not the minimum or maximum could be removed without changing the range. For example, we could remove the number 85:
53 54 63 63
68 68 68 74
82 85 92 88
89 92 92 97
The range of the data set is still 97 - 53 = 44.
To find a number that could be removed from the data set that would change the range, we need to identify a number that is either the minimum or maximum value. For example, we could remove the number 97:
53 54 63 63
68 68 68 74
82 85 85 88
89 92 92
b. The range of the data set is now 92 - 53 = 39, which is smaller than the original range of 44.
Therefore, removing the number 97 changes the range.
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First person to reply gets brainliest
Answer:
I'm not first, but thanks for the points! Have a nice day! :D
Step-by-step explanation:
9A. What equation represents the proportional relationship depicted in the graph
m=money earned and L=lawns mowed.
A. m = 25L
B. L=15m
C. m=25 + L
Help again lol I’ll give you brainliest
Answer:
8
Step-by-step explanation
All you have to do is how many times it goes up. it goes up 8 times so 8 is your answer
Answer:
21
Step-by-step explanation:
you put all those numbers in in order from least to greatest then you get the smaller number and the biggest number -then you subtract them and you have your answer lollll
46 - 25 = 21
The dot plots below show the results.
Students
Teachers
Which compares the medians of the data?
The median for the students is 4 and the median for the teachers is 8.
The median for the students is 2 and the median for the teachers is 3.
The median for the students is 4 and the median for the teachers is 3.
The median for the students is 2 and the median for the teachers is 8.
Answer: The median for the students is 2 and the median for the teachers is 3.
Step-by-step explanation:
Ordering the data for the students from the dot points:
0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 4, 4.
n = 20 which is positive so median position is average of:
= (n / 2) and = (n + 1) / 2
= 20 / 2 = 21 / 2
= 10 = 10.5
2 is in position 10 2 is in position 10.5
Average = (2 + 2) / 2 = 2
Student median is 2.
Teachers
0, 1, 1, 1, 2, 2, 3, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 6, 8
3 is in position 10 as well as in position 10.5.
= (3 + 3) / 2
= 3
Teacher median is 3.
(In attachment, teacher plot is first and then the student follows)
Answer:
Students Median= 2
Teacher Median=3
Step-by-step explanation:
8y - 2(y + 4)
Simplify
Answer:
= 6y − 8
Step-by-step explanation:
At Marco's school, 5/8 of the students are in the band. What percent of the students are in the band?
I need help quick I can’t fail I need a good grade pls help
Answer:
ok I will try and tell you
What does a discriminant value of -8
tell you about the solution of a
quadratic equation?
Answer:
Yayaya
Step-by-step explanation:
Answer:
[tex]\boxed {\boxed {\sf No \ real \ roots/ solutions }}[/tex]
Step-by-step explanation:
The value of the discriminant (b²-4ac) can tell us 3 things:
Positive value: 2 real roots Equal to 0: 1 real root Negative value: No real roots, but imaginary roots can exist.The quadratic equation given has a discriminant of -8. This value is negative, so we know that the quadratic has no real solutions.