Answer:
About 28.26 inches.
Step-by-step explanation:
The formula for circumfrence is c = 2(pi) * r.
We know that r = 4.5 (because the diameter is 9 inches).
So, the equation is c = 2(pi) * 4.5
Let's solve:
c = (2*3.14) * 4.5
c = 6.28 * 4.5
c = 28.26
Therefore, the final answer is 28.26 inches.
Of course, this is not exact because pi is irrational and goes on forever, but the question is asking for an estimate anyways.
Answer:
28.26
Step-by-step explanation:
Just multiply 9x3.14 It would be different if it was the diameter and the diameter is 4.5
HELP!!!!
What is the area of the shaded region?
Answer:
15 cm
Step-by-step explanation:
multiply the two numbers
Area of shaded region = Area of bigger circle - Area of smaller circle
[tex] = \pi( {5}^{2} - {3}^{2} ) \\ = 3.14 \times (25 - 9) \\ = 3.14 \times 16 \\ = 50.24 \: {cm}^{2} \\ [/tex]
i need help please PL
THE ANSWER IS A PART BECAUSE WHEN YOU MAKE MIXED FACTION IN FRACTION AND FIND THE DENOMINATORS BY TAKING OUT LCM IT WILL BE 18
In ΔMNO NM = 3 cm, NO = 4 cm and MO = 5 cm. List the angles in order from smallest to largest.
By identifying triangle MNO as a right-angled triangle with MO as the hypotenuse, the angles are listed from smallest to largest based on their opposite sides: angle M (smallest), angle O (middle), and angle N (largest at 90 degrees).
The student has asked to list the angles of triangle right -angled MNO in order from smallest to largest, given that NM = 3 cm, NO = 4 cm, and MO = 5 cm. This is a case of a right-angled triangle where the sides satisfy the Pythagorean theorem, with MO being the hypotenuse. The angles of a triangle are inversely proportional to their opposite sides. Therefore, the angle opposite the longest side (MO) is the smallest, and the angle opposite the shortest side (NM) is the largest.
Steps to determine angle size:
Use the Pythagorean theorem to confirm the right angle.
Identify the smallest and largest sides to determine the smallest and largest angles.
Apply the fact that the sum of angles in a triangle is 180 degrees to find the middle angle.
Since 3² + 4² = 5², triangle MNO is a right-angled triangle with the right angle at angle N.
The smallest angle is thus at M, opposite the longest side MO.
The largest angle is at O, opposite the shortest side NM.
As angle N is 90 degrees, the remaining angle at O must be the second-largest angle.
Sharon is planning a holiday for 4 people for 7 days.
Here are the costs for the holiday for each person.
Travel
£130
Hotel
£60 for each day
Spending money £350
Work out the total cost of the holiday for 4 people for 7 days.
ANYONE PLS
Answer: 3600
Step-by-step explanation:
(Travel + Hotel + Spending money ) x 4 people=
130 + 60 x 7 (days) + 350 = 900 x 4 = 3600
The Jurassic Zoo charges $11 for each adult admission and $7 for each child. The total bill for the 264 people from a school trip was $2140. How many adults and how many children went to the zoo?
Answer:
59 Adults And 147 Children
Step-by-step explanation:
Since there were a total of 206 people, this means that x%2By=206
Also, because "The Jurassic Zoo charges $11 for adult admission and $9 for each child. the total bill for the 206 people from a school trip was $1972", this means that 11x%2B9y=1972
So we have the system:
system%28x%2By=206%2C11x%2B9y=1972%29
Let's solve it by substitution
Now in order to solve this system by using substitution, we need to solve (or isolate) one variable. I'm going to solve for y.
So let's isolate y in the first equation
x%2By=206 Start with the first equation
y=206-x Subtract x from both sides
y=-x%2B206 Rearrange the equation
---------------------
Since y=-x%2B206, we can now replace each y in the second equation with -x%2B206 to solve for x
11x%2B9highlight%28%28-x%2B206%29%29=1972 Plug in y=-x%2B206 into the second equation. In other words, replace each y with -x%2B206. Notice we've eliminated the y variables. So we now have a simple equation with one unknown.
11x%2B%289%29%28-1%29x%2B%289%29%28206%29=1972 Distribute 9 to -x%2B206
11x-9x%2B1854=1972 Multiply
2x%2B1854=1972 Combine like terms on the left side
2x=1972-1854Subtract 1854 from both sides
2x=118 Combine like terms on the right side
x=%28118%29%2F%282%29 Divide both sides by 2 to isolate x
x=59 Divide
-----------------First Answer------------------------------
So the first part of our answer is: x=59
Since we know that x=59 we can plug it into the equation y=-x%2B206 (remember we previously solved for y in the first equation).
y=-x%2B206 Start with the equation where y was previously isolated.
y=-%2859%29%2B206 Plug in x=59
y=-59%2B206 Multiply
y=147 Combine like terms
-----------------Second Answer------------------------------
So the second part of our answer is: y=147
-----------------Summary------------------------------
So our answers are:
x=59 and y=147
This means that 59 adults and 147 children went to the zoo.
The length of a rectangle is 2x - 1cm. The width is 6cm.
Write an expression for the perimeter of the rectangle. Simplify the
expression.
Answer: 4x+10 cm
Step-by-step explanation:
length of rectangle= 2x-1cm
breadth of rectangle= 6 cm
perimeter of rectangle= 2(L+B)
= 2( 2x-1+6) (substituting the values)
=2(2x+5)
=4x+10
Therefore, the perimeter of the rectangle is 4x+10 cm.
Hope it will help you...
URGENT ! Need help!!!
Which of the sets of ordered pairs represents a function?
A = {(–4, 5), (1, –1), (2, –2), (2, 3)}
B = {(2, 2), (3, –2), (9, 3), (9, –3)} (4 points)
Only A
Only B
Both A and B
Neither A nor B
Answer:
I believe its only B
Answer: I would say neither A nor B
Step-by-step explanation: each input needs to only have 1 output
PLSS HELP
If two circles are congruent then
A) they have the same center.
B) they have the same volume.
C) they have the same diameter
D) they have the same direction.
Answer:
B,C, and D
Give thanks and brainliest!! :P
Answer: The correct answer is C. Because, when two figures are congruent all their measurements are the same.
Step-by-step explanation:
I WILL MARK BRAINLIEST FOR CORRECT ANSWER! :)
Answer: 31.2
Step-by-step explanation:
have a great dayy
how do you factor 2y^2 +13 +21
Answer:
2
(
y
2
+
17
)
Step-by-step explanation:
Answer:
2(y^2+17)
Step-by-step explanation:
First, add 13 and 21 together.
You'll end up with 2y^2+34
Then, factor out the two from each term, to get 2(y^2+17).
Since you can factor nothing else out, that will be your answer.
HELP QUICKLY IN THE NEXT 10 MINS PLEASE WILL GIVE BRAINLIEST
Answer:
Step-by-step explanation:
If the question asks for volume, then
---> 7 x 5 x 3 = 105
If it asks for surface area
---> 2(wl+hl+hw)=
2(7 x 5 + 7 x 3 + 5 x 3)=
142
If it asks for area of the base then the answer is
7 x 3 = 21
.. Megan's aquarium has a volume of 4,320 cubic inches. Which could be
the dimensions of the aquarium? Mark all that apply.
A 16 in. by 16 in. by 18 in.
© 12 in. by 15 in. by 24 in.
B 14 in. by 18 in. by 20 in.
D 8 in. by 20 in. by 27 in.
Answer:
Step-by-step explanation:
Hehe another question
Answer:
The triangle is an isosceles because isosceles triangle have two equal sides.
Nice pfp btw.
Answer:
Step-by-step explanation:
The triangle would be isosceles because it has two of the three sides equal. Hope this helps! :)
Yesterday, Juana sold 84 hot chocolate during her shift at work. If she worked from 7:00 am to 3:00 pm with an hour break for lunch, what was the average sold per hour?
Juana sold an average of 12 hot chocolates per hour during her 7-hour work shift (excluding her lunch break).
Explanation:The question asks us to calculate the average hot chocolate sold per hour by Juana during her shift. Juana worked an 8-hour day but took a 1-hour lunch break, leaving 7 hours of work time.
To find the average sold per hour, the total amount sold (84 hot chocolates) should be divided by the number of hours worked (7 hours). The calculation is as follows:
84 hot chocolates ÷ 7 hours = 12 hot chocolates per hour
Therefore, Juana sold an average of 12 hot chocolates per hour during her shift.
It is recommended that people have 1 gram of calcium each day. How many milligrams of calcium is that?
Answer:
1,000
Step-by-step explanation:
1,000 miligrams is 1 gram hope this helps god bless
what will happen to the ratios as you increase the number of sides of the regular polygon?
Answer: increase
Step-by-step explanation:
Number of sides of the polygon, The number of sides of a regular polygon and the measure of the exterior angle are inversely proportional. As one quantity increases, the other decreases and vice versa.
Students measure the length of their feet in inches. The data is shown in the frequency table below. If the data were displayed in a dot plot, which of the measures would not be 11? (Check all that apply.)
Foot Length Tally Frequency
9 || 2
10 ||| 3
11 ||||| 5
12 | 1
range
mode
median
mean
Answer: The correct answer is mean and range.
The __function is the most basic function in a family of functions.
A. reciprocal
B. parent
C. linear
D. easy
Answer:
B. Parent
Step-by-step explanation:
A parent function is the simplest capacity of a group of functions that saves the meaning of the whole family.
Feel free to let me know if you need more help! :)
The parent function is the most basic function in a family of functions.
What is a function?A relation is a function if it has only One y-value for each x-value.
The parent function is the most basic function in a family of functions.
It serves as a template or starting point for other functions in the family. Other functions in the family can be obtained by applying various transformations such as scaling, shifting, or reflecting the parent function.
The parent function defines the fundamental characteristics and behavior of the entire family of functions.
Hence, the parent function is the most basic function in a family of functions.
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What is the mean of the data?
5
10
30
50
The mean of the given data is 23.75.
What is mean?'Mean is the average of the given numbers and is calculated by dividing the sum of given numbers by the total number of numbers.'
According to the given problem,
The given data is,
5, 10, 30, 50
Sum = 5 + 10 + 30 + 50
= 95
Mean = [tex]\frac{95}{4}[/tex]
= 23.75
Hence, we can conclude, the mean of the given data is 23.75.
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A truck driver drove his truck at an average speed of 45 miles per hour for 3 hours. A bus driver drove an average speed of 50 miles per hour for 5 hours.
Which explanation correctly tells how to find the difference in the distances they drove?
A.
Step 1 Divide: 45 ÷ 3.
Step 2 Divide: 50 ÷ 5.
Step 3 Add the two quotients.
B.
Step 1 Divide: 45 ÷ 3.
Step 2 Divide: 50 ÷ 5.
Step 3 Subtract the two quotients.
C.
Step 1 Multiply: 45 × 3.
Step 2 Multiply: 50 × 5.
Step 3 Add the two products.
D.
Step 1 Multiply: 45 × 3.
Step 2 Multiply: 50 × 5.
Step 3 Subtract the two products.
Answer:
A
Step-by-step explanation:
Is the world flat, or not?
Answer:
its round
Step-by-step explanation:
The length, width and height of a rectangular box are represented by 2x, 4x+1 and 5x-6 respectively. When the volume is expressed as a polynomial in standard from, what is the coefficient of the 2nd term?
Answer:
the coefficient of the 2nd term: - 38
Step-by-step explanation:
V = 2x (4x + 1) (5x - 6)
=(8x² + 2x) (5x - 6)
= 40x³ - 38 x² - 12x
The R.R. Bowker Company of New York collects data on annual subscription rates to periodicals. Results are published in Library Journal. In a recent independent study, it was found that 63% of all students at Mill University read Time magazine, 51% read U.S. News and World Report, and 24% read both magazines. If a student at Mill University is randomly selected, what is the probability that the student reads either the Time magazine or the U.S.News and World Report magazine?
Answer:
90%
Step-by-step explanation:
Let's call the percentage of students that read Time magazine by P(T), and the percentage of students that read U.S News and World Report by P(U). So, we have that:
P(T) = 0.63
P(U) = 0.51
P(T and U) = 0.24
To find the percentage of students that read either the Time magazine or the U.S.News and World Report magazine (that is, P(T or U)), we can use this formula:
P(T or U) = P(T) + P(U) - P(T and U)
So, we have that:
P(T or U) = 0.63 + 0.51 - 0.24 = 0.90
So the probability is 90%
The probability that a randomly selected student at Mill University reads either Time magazine or U.S. News and World Report magazine is 90%.
Explanation:The student is interested in finding the probability that a Mill University student reads either Time magazine or U.S. News and World Report magazine.
To calculate this, we use the formula for the probability of either event A or B occurring (P(A ∪ B) = P(A) + P(B) - P(A ∩ B)), where P(A ∪ B) represents the probability of A or B happening, P(A) is the probability of A happening, P(B) the probability of B happening, and P(A ∩ B) the probability of both A and B happening.
Given that 63% of students read Time (P(Time) = 0.63), 51% read U.S. News (P(U.S. News) = 0.51), and 24% read both (P(Both) = 0.24), we calculate the probability of a student reading either magazine as P(Either) = P(Time) + P(U.S. News) - P(Both) = 0.63 + 0.51 - 0.24 = 0.90, or 90%.
In a math class there are 8 male students and 7 female students. A
student is randomly selected to go to the front office and leaves. A
second student is randomly selected to go to the office. What is the
approximate probability that both students that left were a male
students?
A.25%
B.26.7%
C.28.4%
D.50%
Answer: 26.7%
Step-by-step explanation:
The probability that the leftover students were both male is 26.7%. Hence the correct option is B.
The probability that both selected students are male can be calculated as follows:
Determine the probability of selecting a male student for the first pick: P(Male) = 8/(8+7) = 8/15
Since the first student selected was male, the probability of the second student being male as well is: P(Second Male|First Male) = 7/(8+6) = 7/14
Multiply the probabilities together to get the probability of both selected students being male: P(Both Male) = P(Male) * P(Second Male | First Male) = (8/15) * (7/14) = 4/15 or approximately 26.7%
A teacher can grade 8 math tests in 10 minutes. What is the teacher’s unit rate in minutes? Answer without units.
NEED HELP ASAP
Answer:
0.8
Step-by-step explanation:
8 tests/10 mins
8 divided by 10 is 0.8 so 0.8/1 is the unit rate
Answer: 0.8
Step-by-step explanation: 8 test/10 minutes
I’m having a hard time help me
Answer:
The answer is 2881
Step-by-step explanation:
Look at the attached picture ⤴
I have shown the steps there....
So,Hope it will help u ....:)
✴Have a great day✴
A sphere and a cylinder have the same radius and height. The volume of the cylinder is 11 ft?
Which equation gives the volume of the sphere?
Answer:
C
Step-by-step explanation:
credit to the first guy
Answer:
D
Step-by-step explanation:
I took the test
What is the value of z???
Answer: 33
Step-by-step explanation:
all of the numbers add up to 180 degrees
Answer:
33
Step-by-step explanation:
To find the degree, remember: a triangles angles will always add up to 180°. So, add your degrees, then subtract that from 180:
[tex]114+33=147\\180-147=33[/tex]
z=33°
Write 4.768 as a common fraction, proper or improper and then reduce. .
The number n = 4.768 as a fraction is A = 596/125
What is a Fraction?An element of a whole is a fraction. The number is represented mathematically as a quotient, where the numerator and denominator are split. Both are integers in a simple fraction. A fraction appears in the numerator or denominator of a complex fraction. The numerator of a proper fraction is less than the denominator.
Given data ,
Let the number be represented as n
Now , let the fraction be A
where the value of n = 4.768
And , to convert a decimal to a fraction, we can write the decimal as a fraction with the decimal value in the numerator and a power of 10 in the denominator that corresponds to the number of decimal places.
For 4.768, the decimal value is 768, which is three decimal places to the right of the decimal point. Therefore, we can write:
4.768 = 4 + 0.768
= 4 + 768/1000
= 4000/1000 + 768/1000
= 4768/1000
This fraction can be reduced by dividing both the numerator and denominator by their greatest common factor, which is 8:
4768/1000 = (8 × 596)/(8 × 125)
A = 596/125
Hence , the fraction is A = 596/125
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Consider the line y=-=x+6.
What is the slope of a line parallel to this line?
What is the slope of a line perpendicular to this line?
Answer:
[tex]y=-x-6[/tex] is parallel
[tex]y=x+6[/tex] is perpendicular
Step-by-step explanation:
(im answering this assuming that says y = -x + 6)
[tex]y=-x-6[/tex] is parallel because the slope remains the same
[tex]y=x+6[/tex] is perpendicular because it reflects the line