The correct equation that can be used to find the circumference of the circle is:
C = π x 4.
What is a circle?A circle is a two-dimensional figure with a radius and circumference of 2pir.
The area of a circle is pir^2.
We have,
The formula for the circumference (C) of a circle is:
C = π x diameter
We are given that the diameter of the circle is 4 cm.
Substituting this value into the formula, we get:
C = π x 4
Simplifying the expression, we get:
C = 4π
Therefore,
The correct equation that can be used to find the circumference of the circle is:
C = π x 4.
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HELPPP PLEASEEEEEEEEE
Answer:
the missing side is the same thing as the existing side. if you just take that triangle you see and flip it over, it will make a square. therefore, the length of the missing side is the same as the length of the existing side. sorry if this doesn't make sense haha
Step-by-step explanation:
Two rival companies began the same year. The equations below model the number of employees, y, at these companies x years after the companies began.
Company R: y = 3x + 24
Company T: y= 4x + 10
Company R stated, “We have 42 employees, the same number of employees as company T has this year.” Determine if company R’s claim is possible. Explain your reasoning.
Company T stated, “After 15 years, we will have the same year of employees as company R.” Determine if company T’s claim is possible. Explain your reasoning.
Answer:
Both the claims by the companies are not possible.
Step-by-step explanation:
Equations modeling number of employees 'y' after 'x' years of the start are,
For company R: y = 3x +24
For company T: y = 4x + 10
If Company R states that this year they have 42 employees,
42 = 3x + 24
3x = 42 - 24
x = [tex]\frac{18}{3}[/tex]
x = 6 years
So company has completed 6 years this year.
Now we put x = 6 years in the equation for company T.
y = (4×6) + 10
y = 24 + 10
y = 34
Which doesn't match with the number of employees of the company R.
Therefore, claim of company R is not possible.
Company T stated that after 15 years they will have the same number of employees as company R.
For company T : y = 4(15) + 10
y = 70 employees
For company R : y = 3(15) + 10
y = 45 + 10
y = 55 employees
Therefore, claim of the company T is also not possible.
Given the equations that model the number of employees y, at these companies x years after the companies began expressed as:
Company R: y = 3x + 24
Company T: y= 4x + 10
If both companies has the same number of employees, then;
3x + 24 = 4x + 10
3x - 4x = 10 - 24
-x = -14
x = 14
Since 14 ≠ 42 that company R claimed, hence the company does not have the same number of employees as company T has this year.
Functions and values
Given the equations that model the number of employees y, at these companies x years after the companies began expressed as:
Company R: y = 3x + 24
Company T: y= 4x + 10
If both companies has the same number of employees, then;
3x + 24 = 4x + 10
3x - 4x = 10 - 24
-x = -14
x = 14
Since 14 ≠ 42 that company R claimed, hence the company does not have the same number of employees as company T has this year.
Since 14 ≠ 15 that company T also claimed, hence the company does not have the same number of employees as company T has this year.
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What are the solutions of 3(x – 4)(2x - 3) = 0? Check all that apply.
Answer:
x=4 x = 3/2
Step-by-step explanation:
3(x – 4)(2x - 3) = 0
We can use the zero product property
x-4 =0 2x-3=0
Solve each equation
x-4 =0 2x-3=0
x=4 2x=3
x =3/2
Marta’s mother shared a funny video of their cat on the Internet. The total number of people who had viewed the video over the first 30 days could be modeled using the function f(x) = 33(1.3)x where x is the number of days the video has been online. About how many people had viewed the video once it had been online for 20 days?
858 days
Step-by-step explanation:
take 33*1.3*20
Answer:
its not 858 just took test and only one i got wrong
Step-by-step explanation:
Find the difference: 1-8/13
A: 5/13
B: 12/13
Answer: 5/13
Do Keep Change Change (KCC)
Keep: 1/1
Change - into +
Change: 8/13 into -8/13
Remove
1/1 it becomes 13/13
Your new Problem: 13/13+-8/13
Add
13+-8/13=5/13
Which ordered pair would form a proportional relationship with the point graphed below?
PLZ HELPPP MEEE
On a coordinate plane, a line with negative slope goes through points (negative 20, 10), (0, 0), and (20, negative 10).
(10, –20)
(–30, 20)
(–10, 5)
(35, –20)
Answer:
( -10, 5 )
Step-by-step explanation:
( i used Desmos, you should try it )
:)
Answer:
its c
Step-by-step explanation:
What is the surface area of this cylinder?
Use a ~ 3.14 and round your answer to the nearest hundredth.
The surface area of the cylinder is [tex]\( 904.32 \, \text{cm}^2 \)[/tex]
The surface area (A) of a cylinder is given by the formula:
[tex]\[ A = 2\pi r^2 + 2\pi rh \][/tex]
where:
- [tex]\( r \)[/tex] is the radius of the base,
- [tex]\( h \)[/tex] is the height,
- [tex]\( \pi \)[/tex] is a constant approximately equal to 3.14.
Given the values:
- Radius [tex](\( r \))[/tex] = 8 cm
- Height [tex](\( h \))[/tex] = 10 cm
- [tex]\( \pi \)[/tex] = 3.14
Plug these values into the formula:
[tex]\[ A = 2 \times 3.14 \times (8)^2 + 2 \times 3.14 \times 8 \times 10 \][/tex]
[tex]\[ A = 2 \times 3.14 \times 64 + 2 \times 3.14 \times 80 \][/tex]
[tex]\[ A = 401.92 + 502.4 \][/tex]
[tex]\[ A = 904.32 \, \text{cm}^2 \][/tex]
Therefore, the surface area of the cylinder is [tex]\( 904.32 \, \text{cm}^2 \)[/tex].
The surface area of a cylinder is calculated using the formula A = 2πr² + 2πrh, combining the areas of the top and bottom circles and the side surface.
Explanation:To find the surface area of a cylinder, we need to add the areas of the two circular bases and the lateral surface area. The formula for the surface area of a cylinder is:
A = 2πr2 + 2πrh
where r is the radius of the circular base and h is the height of the cylinder. In this case, you can use a value of ~3.14 for π (pi) and round your answer to the nearest hundredth.
To calculate the surface area of a cylinder, you need to know the radius of the cylinder and its height. The formula for the surface area (A) of a cylinder is A = 2πr² + 2πrh, where r is the radius, and h is the height. This includes both the areas of the top and bottom circles (2πr²) and the area of the side surface (which is the circumference of the circle times the height, 2πrh). If the student provides the dimensions of the cylinder, use them to plug into this formula and calculate the surface area.
what is this answer.
Answer:
the third one
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
evaluate the expression xy-3x; when x=4 and y=5. Pls provide explanation. Will choose brainliest.
4*5-3*4
20-12
=8
Just plug in the numbers and solve. Remember that you multiply before you subtract.
Answer: 8
Step-by-step explanation: it was correct when I did it
Which expression represents 11 less than the sum of y and 13? Will choose brainliest, plz include explanation.
Answer:
D
Step-by-step explanation:
A sum is adding so first you add (y+13)
then its says to subtract 11 so the correct expression is (y+13) - 11
Answer:
D (y+13) -11
Step-by-step explanation:
Less than means subtract from so we need the second part first
sum of y and 13
(y+13)
Less than means subtract from
(y+13) -11
Based on the housing data below, which equation can be used to calculate
fair housing prices?
Square Feet
2156
2040
2050
House Price
(in thousands)
210
200
204
Answer: y=0.074x+50.48
Step-by-step explanation:
The solution is : B. y = 0.097x + 11.142
What is slope?In mathematics, the slope or gradient of a line is a number that describes both the direction and the steepness of the line. The slope of a line is a measure of its steepness. Mathematically, slope is calculated as "rise over run" (change in y divided by change in x).
here, we have,
In order to find the best equation to descibe the housing price, we have to calculate the slope of the line first.
The equation of the line can be written as
y = mx + q
where m is the slope and q the y-intercept.
In order to have the most accurate estimate for the slope, we use the first point and the last point, that are:
(1900, 196)
and
(2200, 225)
The slope of the line is calculated as:
m = y2-y1/x2-x2 = 0.097
So, the slope of the line is 0.097.
Therefore, the correct option is the only one having a slope of 0.097, which is:
B. y = 0.097x + 11.142
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complete question:
Based on housing data below which equation can be used to calculate fair housing prices?
Square feet
1900
2000
2200
house price (in the thousands 19)
196
205
225
A. y = 0.087x + 9.286
B. y = 0.097x + 11.142
C. y = 0.074x - 50.48
D. y = 0.087x - 9.286
Help, please!! The first answer with step by step will be brainliest. Questions are on the next pic.
Answer:
(Shown Below)
Step-by-step explanation:
Based on the table shown, the answers are as follows:
1. -5, 30, 35
2. June
3. November
4. June
Hope I helped! Please give me brainliest!
If a single marble is pulled out of the bag how many outcomes are in the sample
Answer:10
Step-by-step explanation:
The number of outcomes can vary based on whether the marbles are replaced or not after each draw.
The number of outcomes in the sample space when Maria draws a marble from the bag at random varies depending on the conditions:
If the marbles are replaced after each draw, the sample space remains constant with 7 marbles total (4 blue and 3 white), hence 7 outcomes.If the marble is not replaced, changing the composition to 3 blue and 3 white marbles on the second draw, the sample space then has 6 outcomes.The key factor affecting the number of outcomes is whether the marbles are replaced between draws.
Which graph shows a negative correlation?
second graph
Step-by-step explanation:
Doesn't really look like a negative correlation to me but the closest would be first one if there is a option for no correlation that'd be right too.
Quick answer please ddd
Answer:
C
Step-by-step explanation:
It makes the most sense.
Answer:
honestly it seems as if c is a reasonable answer
Step-by-step explanation:
Which could be the cross section of a square pyramid? Select all that
apply.
Choose all that apply:
trapezoid
triangle
circle
pentagon
square
Final answer:
Cross sections of a square pyramid can include a trapezoid, a triangle, or a square. A circle or a pentagon are not possible shapes for these cross sections because they don't align with the pyramid's geometric structure.
Explanation:
The cross section of a square pyramid could be either a trapezoid, a triangle, or a square, depending on the plane's angle relative to the pyramid's base and sides. A circle or a pentagon cannot be cross sections of a square pyramid since they do not conform to the sides or base of a square pyramid.
A trapezoid cross-section can be obtained if the cutting plane is parallel to one base edge and intersects the other three edges of the pyramid. A triangle appears when the cutting plane passes through one vertex and cuts through the base, creating a cross section congruent to the faces of the pyramid. Lastly, a square section results when the cutting plane is parallel to the base and slices through the pyramid.
What is the solution to the inequality |X-4 <3?
0 -7
1
O x<-7 or x<-1
O x> 1 or x<7
??
Answer:
Choice: O x> 1 or x<7
My solution is: x < 7 OR x > 1
Step-by-step explanation:
| x - 4 | < 3
x - 4 < 3 OR x - 4 > -3
x < 3 + 4 OR x > -3 + 4
x < 7 OR x > 1
Of the marbles in a bag, 4 are yellow, 5 are blue, and 4 are red. Sandra will randomly choose one
marble from the bag. Fill in the blanks in parts a and b.
a. The probability that Sandra will choose a red marble from the bag is
out of 17 or
Answer:
where is part b? Part A is 4/13
Step-by-step explanation:
this is because in total there are 13 marbles. and when you pull out a marble. 4 of them can be red. you can simplify that fraction if need be.
What is the product? One-third times 33.99 3 11 11.33 33.11
hi y'all I am new to this so can y'all help me
George Washington had been impatient since his departure from Philadelphia in early September. When he left the stricken city, he had put Secretary of War Henry Knox in charge of the government, giving the former general clear instructions to report to him weekly concerning the spread of yellow fever. —An American Plague, Jim Murphy What two benefits does the fictional account of events provide that the nonfiction does not? characters readers can connect with George Washington’s feelings about the event details of what it was like to experience the event Mr. Carris’s thoughts on Secretary of War Henry Knox a biography of George Washington
A fictional account offers benefits such as readers connecting emotionally with characters, like understanding George Washington's feelings, and provides immersive details on what experiencing historical events may have felt like, unlike nonfiction accounts which focus on factual precision.
A fictional account like the one in An American Plague by Jim Murphy offers two main benefits that a nonfictional account may not typically provide. First, it includes detailed characterization, which allows readers to connect with the characters on an emotional level. In this case, it's the portrayal of George Washington's feelings and his impatience as he left the city of Philadelphia. Second, a fictional account can offer vivid, imaginative details of what it was like to experience the event, thus bringing history to life in a way that purely factual retellings may not.
While nonfiction focuses on presenting the facts as accurately as possible, fiction can delve into the personal experiences and emotional journeys of historical figures, providing a different layer of understanding.
530 : 34 =?
Write your answer as a whole number and remainder.
To divide 530 by 34, divide the quotient and the remainder. The whole number part of the quotient is 14 and the remainder is 54.
Explanation:To divide 530 by 34, we start by determining how many times 34 can fit into 530. We find that 34 can fit into 530 fourteen times. So, the whole number in the answer is 14. Now we calculate the remainder by subtracting 14 times 34 from 530. The remainder is 530 - (14 * 34) = 530 - 476 = 54.
Therefore, the answer to 530 divided by 34 is 14 with a remainder of 54.
How do you write an equation in vertex form. Please provide a step by step solution
Answer:
Step-by-step explanation:
Vertex form of a quadratic equation is y=a(x-h)2+k, where (h,k) is the vertex of the parabola.
The vertex of a parabola is the point at the top or bottom of the parabola.
'h' is -6, the first coordinate in the vertex.
'k' is -4, the second coordinate in the vertex.
'x' is -2, the first coordinate in the other point.
A triangle has side lengths 1.5 cm, 2 cm, and 3 cm. Is this a right triangle? Explain.
Answer:
No
Step-by-step explanation:
To figure out whether a triangle is a right triangle using only the side lengths, you can use the Pythagorean theorem:
a^2 + b^2 = c^2
1.5^2 + 2^2 = 3^2
2.25 + 4 = 9
Since this equation isn't true, these numbers cannot be the side lengths of a right triangle.
After applying the Pythagorean theorem to the triangle with sides 1.5 cm, 2 cm, and 3 cm, it is determined that the triangle is not a right triangle because the squares of the shorter sides do not sum up to the square of the longest side.
Explanation:To determine if a triangle with sides measuring 1.5 cm, 2 cm, and 3 cm is a right triangle, we can apply the Pythagorean theorem. The theorem states that for any right triangle, the square of the length of the hypotenuse (c) is equal to the sum of the squares of the other two sides (a and b). In mathematical terms, this is expressed as c² = a² + b².
Let's check if our triangle meets this condition:
Assume the longest side, 3 cm, is the hypotenuse (c).Square the lengths of the shorter sides: 1.5² + 2² = 2.25 + 4 = 6.25 cm².Square the length of the assumed hypotenuse: 3² = 9 cm².Since 6.25 cm² does not equal 9 cm², the sides do not satisfy the Pythagorean theorem, so the triangle is not a right triangle.
What is the greatest common factor of 4k, 18 Kº, and 12?
A 2
B 4
C 2k.
D
4K
The number 2 is a factor of 4k, 18k and 12 since
4k = 2*2k
18k = 2*9k
12 = 2*6
It is also the largest common factor of all three expressions.
4 wouldn't work because 4 is not a factor of 18
2k doesn't work, and neither does 4k, since k is not present in 12.
How many solutions does this equation have
5 cups of grape juice to 2 cups of apple juice
find the unit rate
Answer:
5:2 is the answer
Step-by-step explanation:
Can you help me please and show your work I will mark you Brainiest
Answer:
she would need to pay 70 Nickles to get to $3.49 and she would get 1 penny back.
What is the simplified form of the square root of 45?
A. the square root of 5
B. the square root of 9 x 5
C. 3 and the square root of 5
D. 5 and the square root of 3
Answer:
3sqrt(5)
Step-by-step explanation:
sqrt(45)
sqrt(9*5)
We know the sqrt(ab) = sqrt(a) sqrt(b)
sqrt(9) sqrt(5)
3sqrt(5)
Answer:
C. 3 and the square root of 5
Step-by-step explanation:
45/9=5
Square root of 9 is 3
Left over: rad 5
3 and the square root of 5
An angle whose measure is 40° is in standard position. In which quadrant does the terminal side of the angle fall? Quadrant I Quadrant II Quadrant III Quadrant IV
Answer:
Quadrant 1
Step-by-step explanation:
The terminal side of the angle whose measure is 40° falls in quadrant I.
What is Trigonometry?Trigonometry is a branch of mathematics that studies relationships between side lengths and angles of triangles.
To determine the quadrant in which the terminal side of an angle falls, we need to look at the direction in which the terminal side moves from the origin.
If the terminal side moves to the right of the origin, it is in quadrant I or IV; if it moves to the left of the origin, it is in quadrant II or III.
The angle whose measure is 40° starts on the positive x-axis and moves in a counterclockwise direction.
Since 40° is less than 90° the angle will move less than 90° counterclockwise from the x-axis.
The terminal side of the angle will fall in quadrant I, which is the quadrant that lies to the right of the positive x-axis and above the positive y-axis.
Hence, the terminal side of the angle whose measure is 40° falls in quadrant I.
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an insulated tote bag has a volume of 972 cubic inches. if the base of the tote bag is a square with an area of 81 square inches what is the height
Answer: The height is 12 inches.
Step-by-step explanation:
Hi, to answer this question we have to apply the next formula:
Volume: area x height
Replacing with the values given:
972 cubic inches = 81 square inches x h
Solving for h (height)
972/81 = h
12 inches =h
The height is 12 inches.
Feel free to ask for more if needed or if you did not understand something.