Answer:
12.57cm²
Step-by-step explanation:
Hopefully this helps :)
The area of a circle with a diameter of 4 cm is found by using the formula A = πr² with the radius being half the diameter. After calculation, the area of the circle is 12.56 cm², which is rounded to 12.6 cm² to the nearest tenth.
The question requires us to find the area of a circle when given its diameter, which is 4 cm. To calculate the area, we will use the formula A = πr², but first, we need to determine the radius of the circle. As the radius is half the diameter, for our circle, the radius (r) is 2 cm (half of 4 cm). Substituting this value into the area formula:
A = πr²
= 3.14 × (2 cm)²
= 3.14 × 4 cm²
= 12.56 cm²
To provide the answer to the nearest tenth, we round the area to 12.6 cm². Therefore, the area of the circle is 12.6 cm²
when rounded to the nearest tenth.
Order the numbers from greatest to least.
2.34, 234, 94
Answer:
234, 94, 2.34
Step-by-step explanation:
Patel is solving 8x? + 16x + 3 = 0. Which steps could he use to solve the quadratic equation? Select three options,
Answer:
8x+16x+3=0
24x+3=0
24x=3
x=24÷3
x=8
I would also love an explanation!
Answer:you go up one over three
Step-by-step explanation:
Evaluate 5 × (4.75 + 1.50) - 3 × 1.25
Answer:
The answer is 27.5
Answer:
25.50
Step-by-step explanation:
5(4.75+1.50)-3 x 1.25
23.75+5.50-3x 1.25
29.25-3x1.25
29.25-3.75
25.50
A cylinder and a cone start with the same radius and height. The radius of the cone is then tripled, and the height of the cone is cut in half. The radius of the cylinder stays the same, but the height of the cylinder is doubled. Which change produces a greater increase in volume (i.e., which figure’s volume increases by a larger factor)? Justify your answer. Write “pi” for ''pi symbol'' and “r^2”.
Answer:
The change in the cone produces a greater increase in volume.
Step-by-step explanation:
Let's start with the cone.
[tex]V = \frac{1}{3} \pi r^{2} h[/tex]
[tex]V = \frac{1}{3} \pi 3r^{2} \frac{h}{2}[/tex] (In your case, you would type V = 1/3pi3r^2h/2)
The changes that occurred are [tex]3^{2}[/tex] and [tex]1/2[/tex]. When we add these together we get [tex]9/2[/tex].
Now the cylinder.
[tex]V = \pi r^{2} h[/tex]
[tex]V = \pi r^{2} 2h[/tex] (In your case, you would type V = pir^2 2h)
The change that occurred is [tex]2[/tex].
[tex]9/2[/tex] is greater than [tex]2[/tex] which means that the change in the cone produces a greater increase in volume.
Answer:
Step-by-step explanation:
For the cone V k1= (Pi/3) .R squared .H
V k2= (pi/3) . (3R)squared . (H/2)=(9/2) .(PI/3) . R squared.H
=(3pi/2) R.squared.H
3pi/2
nk= 2/ pi/3
N k= 9/2
For the cylinder
V c1=Pi .R squared.H
V c2= Pi.R squared.(2H)
N c=V c2/V c1=2
Cone has greatest change in volume
Hope this helps!!!!!!!!
Which of these is not a Pythagorean Triple?
Select one:
a. 5,12,13
b. 3,4,5
c. 1,2,3
d. 7,24,25
Answer:
C because the rest are pythagoreaum theroems 1 squared plus 2 squared does not equal 3 squared.
Step-by-step explanation:
compare the two groups of data. which statement is true?
Answer:
a) both have the same spread
Step-by-step explanation:
Mean of Brand A > Mean of Brand B
Median of A > Median of B
Spread of:
A: 22 - 18 = 4
B: 18 - 14 = 4
The spread of the data which is obtained by calculating the Interquartile range of each distribution since the distributions are skewed is 2 for brand A and brand B. Hence, the spread is the same.
The distribution of BRAND A chips :
18, 19, 19, 19, 19, 19, 19, 20,20,20,20,20,20,21,21,21,21,21,21,22
The Upper quartile, Q3 ;
Q3 = 0.75 × (n + 1)th term
Q3 = 0.75 × 21 = 15.75 th term = 21
The Lower quartile, Q1 ;
Q1 = 0.25 × (n + 1)th term
Q1 = 0.25 × 21 = 5.25 th term = 19
The IQR = Q3 - Q1 = (21 - 19) = 2
The distribution of BRAND B chips :
14,14,14,14,14,14,14,14,15,15,15,15,15,15,16,16,16,16,16,18
The Upper quartile, Q3 ;
Q3 = 0.75 × (n + 1)th term
Q3 = 0.75 × 21 = 15.75 th term = 16
The Lower quartile, Q1 ;
Q1 = 0.25 × (n + 1)th term
Q1 = 0.25 × 21 = 5.25 th term = 14
The IQR = Q3 - Q1 = (16 - 14) = 2
Therefore, the spread of distribution of BRAND A and B are the same.
Learn more :https://brainly.com/question/15191516
A linear function has a slope of Negative StartFraction 7 Over 9 EndFraction and a y-intercept of 3. How does this function compare to the linear function that is represented by the equation y + 11 = Negative StartFraction 7 Over 9 EndFraction (x minus 18)?
Answer:
They are the same line written in different forms.
Step-by-step explanation:
Given a linear function with a slope of [tex]-\frac{7}{9}[/tex] and a y-intercept of 3.
The equation of the line in the slope-intercept form is given as:
[tex]y=-\frac{7}{9}x+3[/tex]
Given the other line,
[tex]y+11=-\frac{7}{9}(x-18)[/tex]
Simplified:
[tex]y+11=-\frac{7}{9}x+14\\y=-\frac{7}{9}x+14-11\\y=-\frac{7}{9}x+3[/tex]
The two lines are one and the same line.
Answer:
They are the same line written in different forms.
What is the volume of this cylinder?
Use n = 3.14 and round your answer to the nearest hundredth.
Answer:
12762.72 cubic meters
Step-by-step explanation:
The volume of a cylinder is denoted by the formula: [tex]V=\pi r^{2} h[/tex], where r is the radius and h is the height.
Here, we see that the height h = 11.5 m. We also see that the diameter is 37.6 meters. Since diameter = 2 * radius, we can divide this number by 2 to get the radius: r = 37.6/2 = 18.8 meters.
Now substitute these values into the equation:
[tex]V=\pi *(18.8^2)*11.5=3.14*(18.8^2)*11.5=12762.72[/tex] cubic meters
Hope this helps!
Answer:
[tex]12769.19m^{3}[/tex]
Step-by-step explanation:
The formula for the area of a circle is:
[tex]\pi r^{2}[/tex]
To work this out you would first have to find the area of the circle. To do this you would first divide 37.6 by 2, which gives you 18.8. Then to find the area you would multiply pi by 18.8 squared, which gives you [tex]1110.36m^{2}[/tex]. Then To find the volume you would multiply 1110.36 by 11.5, which gives you [tex]12769.19m^{3}[/tex].
To find the volume of a prism you would find the area of the main face and multiply it by the height.
1) Divide 37.6 by 2.
[tex]37.6/2=18.8[/tex]
2) Multiply [tex]\pi[/tex] by 18.8 squared.
[tex]\pi *18.8^{2}=1110.36m^{2}[/tex]
3) Multiply 1110.34 by 11.5.
[tex]1110.36*11.5=12769.19m^{3}[/tex]
Remember when finding the area, thee answer is always going to be squared.
Remember when finding the volume the answer is always going to be cubed.
help meeeeeeeeeeeeeeee
Answer:
2 years
Step-by-step explanation:
pls help thankssssssssssssssssssssssssssssss
Answer: The answer is 525.
Step-by-step explanation:
7*(5)^2*(3)= 525
the nth term of a number sequence is 2n+5
Answer:
Step-by-step explanation:
hello you idiot
Can you explain it and help me out please
Answer:
D. two real solutions
Step-by-step explanation:
p²+5 = 6p
p² - 6p +5 =0
D = b² - 4ac = (-6)² - 4*(1)*5 = 36 - 20 = 16
D > 0, so this equation has 2 real solutions
In a classroom, there are 7 groups of desks, and each group has the same
number of desks. The math teacher distributes one calculator to each desk. If
out of 37 calculators all but 2 are distributed, how many desks are in each
group?
Help me!! Pleaseee
Answer:
5 groups
Step-by-step explanation:
because you subtract two from 37 calculators that gives you 35 divide it by 7 and you get 5
Answer:
It' s was 77
Step-by-step explanation:
Mathematics VI
Which property is represented by the following equation?
5 x 13 x 2 = 5x 2 x 13
Answer:
commutative
Step-by-step explanation:
-The ability to change the order to terms in a addition or multiplication problem.
Can you please help me out plz asap
Answer:
1. A
2. B
3. C
you have to judge the fraction based on the other dilations and the answer choices
can someone please help
Answer:
Step-by-step explanation:
1)
[tex]\frac{5}{24}+\frac{2}{3-x}=\frac{1}{4}\\\\\frac{5}{24}-\frac{1}{4}=\frac{-2}{3-x}\\\\\frac{5}{24}-\frac{1*6}{4*6}=\frac{-2}{3-x}\\\\\frac{5-6}{24}}=\frac{-2}{3-x}\\\\\frac{-1}{24}}=\frac{-2}{3-x}\\\\\\(-1)*(3-x)=(-2)*24\\\\-1*3-(-1)*x = -48\\\\-3 + x = -48\\\\x = -48 + 3\\\\x = -45[/tex]
x = -45
2)
Find the vertex and the axis of symmetry of the graph f(x) = 3(x + 1)2.
Answer:
Step-by-step explanation:
hello :
the vertex is (-1 ;0)
the axis of symmetry is : x= -1
Question 1
Factor the following expression using the GCF. Type your factored expression below.
4xy + 12w + 12Z
Answer:
4(xy + w + z)
Step-by-step explanation:
The expression to be factored is:
4xy + 12w + 12z
Factoring an equation involves taking out common terms from the expression that will then make it more simpler and simplified.
To solve this problem, we need to find the factors of the given terms:
4xy
12w
12z
The numbers given as coefficients of the variables are;
4 12 12
A factor is any integer that divides a number evenly;
Factors of 4 are 1, 2 and 4
12 are 1, 2,3,4,6 and 12
The common factors between 4 and 12 are those numbers that can divide both digits:
These are 1, 2, and 4, they are common to both
Now, the greatest common factor is the highest of this factors which is 4
Therefore, the greatest common factor of 12 and 4 is 4
Also, xy, w and z has no common factors
Factoring
4xy + 12w + 12z = 4(xy + w + z)
wo lengths of a triangle are shown. wo lengths of a triangle are shown. Triangle J K L. Side J K is 5 inches and side J L is 10 inches. Which could be the length of Side K L? 4 in. 9 in. 16 in. 19 in.Triangle J K L. Side J K is 5 inches and side J L is 10 inches. Which could be the length of Side K L? 4 in. 9 in. 16 in. 19 in.
Answer:
B/2: 9 inches
a 3rd grade teacher has 55 students everyday if those 55 students turned into 100 students how many students would it be.
Answer:
45 because you have to subtract 100-55 which would equal 45
Answer:
Yeah it would be 45
Step-by-step explanation:
Because:
100 - 55 = 45
My nephew was playing with a book and tore out the pages 7, 8, 100, 101, 222 and 223.
How many sheets did he tear out?
Answer:
Step-by-step explanation:
A sheet has 2 pages
6 pages are torn. So 6 ÷ 2 = 3 sheets
Answer:
3 pages
Step-by-step explanation:
7 and 8 are one page
100 and 101 are one page
222 and 223 are one page
He tore out 3 pages
If a florist uses her credit card to pay for a new window display that costs $1,242 and does not pay it on until the Second month, what will the 1.25% monthly interest charge be at the end of the first month?
A.$12.83
B.15.53
C.16.00
D.$17.17
Answer:
$15.53
Step-by-step explanation:
Please refer to the attached image for explanations
An envelope is 3 inches wide, and it measures 7 inches along the diagonal. What is the envelope’s length? If necessary, round to the nearest tenth.
The length of the envelope is 6.3 inches
Step-by-step explanation:
Width of the envelope = 3 inches
Diagonal of the envelope = 7 inches
To find:
The length of the envelope.
Let the length of the envelope be 'l'
We can use pythogoras theorem to calculate the length.
l = √(49-9)
l = √(40)
l = 6.3 inches
The length of the envelope is 6.3 inches
2 Points
Multiply the polynomials.
(х- 7)(х2 + 3х – 3)
ОА. 3 – 4х2 – 24
21
О
В. x — 7х2 — 24х + 21
ооо
Ос. 3 – 72 - 3x+21
O
D. х3 – 4х2 – 3х+21
SUBM
Answer:
213
Step-by-step explanation:
can someone please help me i would be very grateful
Questions 4,5,6,7,8,9
HELP
points and brainliest!
is this a function?
true or false
Answer:
false
Step-by-step explanation:
it fails the vertical line test, (x cannot be equal to 2 or more y values or its not a function)
To check if a graph is a function, we use the vertical line test. If your run a vertical line over the function, are there any places where the line intersects the graph more than once? If so, it's not a function.
In this case, if we have a line at x = 0, the line will go through more than one point - (0, 0) and (0, 3.1) [exact value doesn't matter, what matters is that there's a point there]. That means that this is not a function, so the statement is false.
Find the exact volume of the cylinder.
A) 14π m3
B) 28π m3
C) 56π m3
D) 112π m3
(the height is 7 and the radius is 2)
Answer:
Option B) [tex]28\pi\text{ m}^3[/tex]
Step-by-step explanation:
We are given the following in the question:
Radius of cylinder, r = 2 m
Height of cylinder, h = 7 m
We have to find the volume of the cylinder.
Volume of cylinder =
[tex]V = \pi r^2 h[/tex]
where r is the radius and h is the height of the cylinder.
Putting values, we get,
[tex]V = \pi (2)^2(7)\\V = 28\pi\text{ cubic meter}[/tex]
Thus, the volume of cylinder is
Option B) [tex]28\pi\text{ m}^3[/tex]
Hi, love!!
The correct answer is listed below:
A) 14π m3
B) 28π m3
C) 56π m3
D) 112π m3
Please help
Which shapes can be cross sections of the figure?
Check all that apply.
A,circle
B,rectangle
C,trapezoid
D,triangle
E,semicircle
Answer:
The answer is B,C, and D
Step-by-step explanation:
I GOT. THE. QUESTION. RIGHT. ON. EDUNUTITY
What is the effect on the graph of the function f(x) =^8x when f(x) is replaced with f(x − 2)?
Answer:
f(x - 2) = 8x - 16
Step-by-step explanation:
f(x) = 8x
f(x - 2) = 8(x - 2)
f(x - 2) = 8x - 16