Answers
Step-by-step explanation:
Area= 13.86 cm²
πr²= 13.86 cm²
r= √13.81 ×7/22
r= 2.1 cm
Circumference= 2πr
= 2 × 22 × 2.1 / 7
=13.2 cm
Answer:
circumference is the outside area of a circle
area of the circle is the inside area
Related Questions
What is the value of 6 (2b-4) When b=5
Answers
Answer:
36
Step-by-step explanation:
Replace the 2b with 10 and then do the parenthesis, so 10-4=6
now multiply it with the 6 outside the parenthesis and you get 36
Hi! I'm happy to help!
First of all, we need to substitute b into the expression.
6(2b-4)
6((2×5)-4)
Now we use the order of operations, or PEMDAS (Parenthesis, Exponents, Multiplication or Division, and Addition or Subtraction) to finish simplifying.
We see that 2×5 is inside two sets of parenthesis, so we solve that first
6((2×5)-4)
6((10)-4)
We cam remove the extra set of parenthesis because there isn't an expression inside of it any more.
6(10-4)
Now, we look inside of the parenthesis again and we see 10-4
6(10-4)
6(6)
The six next to the parenthesis has no sign next to it, which means to multiply.
6×(6)
Now we can remove the parenthesis.
6×6
Now, we just simply multiply.
6×6
36
To sum it up: The value of 6 (2b-4) When b=5 is 36
I hope this was helpful, keep learning! :D
A. 5x-2+x=x-4 B. 5x+x=x-4
Answers
B. -4/6
Step-by-step explanation:
5x+x=-4
6x=-4
x=-4/6
Answer:
x= -2/5 or -0.4 x= -4/5 or -0.8Step-by-step explanation:
If you are solving for x then you should get something like this
A 5x-2+x=x- 4 B. 5x+x=x-4
6x-2=-4. 6x=x-4
6x-2-x=-4. 6x-x=-4
5x-2+2=-4+2. 5x=-4
5x/5=-2/5. 5x/5=-4/5
x=-2/5. x=-4/5
I hope this helped you out!
ans all these questions please
Answers
Explanation:
a). 7(2x - 3)
= 7(2(4) - 3)
= 7(8 - 3)
= 35
b). (x + y)^2 - 3x
= (4 + 3)^2 - 3(4)
= 49 - 12
= 37
a). 2x x y
= 2(26) x 3b^2
= 52 x 3b^2
= 156b^2
b). mn/k
= 5a^5b x 4ab^3/10a^4b^3
= 20a^6b^3/10a^4b^3
= 2a^2
Answer:
the answer is in picture
Choose the most convenient method to graph the line y = –3x + 4.
Answers
Answer:
Step-by-step explanation:
The ratio of red beads to blue beads on a necklace is 4:7. What fraction of the beads are blue?
Answers
Answer:
fraction of blue beads = 7/(4+7)
= 7/11
Answer:
3:5
Step-by-step explanation:
find a common numeral
Jordan has $20 to share among three people Jordan types 20÷3 into his calculator and gets 6.666666667 where should Jordan round
Answers
Answer: to the nearest tenth i believe, 6.8
Step-by-step explanation:
The round off should be ones place.
What is Rounding Off?Rounding off means a number is made simpler by keeping its value intact but closer to the next number. It is done for whole numbers, and for decimals at various places of hundreds, tens, tenths, etc.
Given:
20÷3
The resulting value is 6.666666667.
So, divide the money it should be round off to ones place to get a whole number which can make it easy to divide.
Hence, the round off should be ones place = 7
Learn more about rounding off here:
https://brainly.com/question/13391706
#SPJ4
Matrix addition is shown here.
-5 -4 t
W -6 -2
3 -2 3
+
-5 z 11
=
21
-4 2-1
-9 7 s
Enter the value of s, t, w and z
Answers
Answer:
I haven't learned matrix sorry
Julie has a dog that just had a litter of puppies. She has been observing the puppies for 3 weeks. Her teacher assigned homework that required her to create a scientific experiment. Because she likes the puppies so much she decided to make her experiment about them. Julie wrote a question that she could investigate when she was doing the experiment. Which is an acceptable hypothesis for the experiment?
Answers
Answer:
Step-by-step explanation:
The tree diagram represents an
experiment consisting of two trials.
(PICTURE INCLUDED FOR BETTER CONTEXT) urgent pls help
Answers
Answer:
answer is in photo.
Green one is main answer and blue one is formula
INSTRUCTIONS: This is a numerical series. Find the missing item
10.0.18 0.36 0.72|?|2.88
A. 0.9
B. 1.26
C. 1.44
D. 1.62
Answers
Answer: C. 1.44
Step-by-step explanation:
Each number gets multiplied by 2, so it's an exponential series in a way.
You must multiply .72 by 2 to get 1.44.
Solve for h. s=6πsh+6πs²
I got h=1/6π-s but it says the answer is correct but the format is not, ideas?
Answers
Answer:
Try h=(1-6πs)/6π
Step-by-step explanation:
That's the same answer in another format
in a certain country, 40% of registered voters are reublicans, 45% are democrats, and 15% are indepdents. what is the probability that a randomly selected voter opposes the bill
Answers
Find the length of AB
Answers
Answer:
52
Step-by-step explanation:
AB is the hypotenuse of the right triangle
sin34 = opp/hyp = 29/hyp
hyp = 29/sin34 = 51.860457849...
Answer:
[tex]let \: |ab| \: be \: x \\ \\ \frac{ \sin(90) }{x} = \frac{ \sin(34) }{29} \\ x \sin(34) = 29 \sin(90) \\ x = \frac{29 \sin(90) }{ \sin(34) } \\ x = 51.86(2.d.p) \\ |ab| = 51.86[/tex]
Please help me I don’t understand how to do it. If you can please use a data table to explain how to do it.
Answers
Answer:
The 70% mixture makes up 0.7 liters of the solution whereas the 60% mixture makes up 2.8 liters of the solution.
Step-by-step explanation:
Let us have x liters of the .7 mixture and y liters of the .6 mixture.
We want total liters to be 3.5 which means we need x+y=3.5 . I don't like the decimal in the equation so I'm going to multiply both sides by 10: 10x+10y=35
We also need the .7x+.6y=.62(3.5) . I hate the decimal business going on in this question so I'm going to multiply by 1000 which gives 700x+600y=62(35) .
So we have the system
700x+600y=62(35)
10x+10y=35
I'm going to setup this up for linear combination/elimination.
Multiply bottom equation by 60.
700x+600y=62(35)
600x+600y=60(35)
Subtract equations (bottom from top):
(700-600)x+(600-600)y=35(62-60)
Simplify:
100x+0y=35(2)
100x=70
Divide both sides by 100:
x=70/100
x=7/10
Going back to x+y=3.5 along with x=7/10 or .7 liters to find y.
y=3.5-x with x=.7
y=3.5-0.7
y=2.8
The 70% mixture makes up 0.7 liters of the solution whereas the 60% mixture makes up 2.8 liters of the solution.
Pic added.
Another way to do problem:
.7x+.6(3.5-x)=.62(3.5)
Multiply and distribute:
.7x+2.1-.6x=2.17
Combine like terms on left:
.1x+2.1=2.17
Subtract 2.1 on both sides:
.1x=.07
Multiply both sides by 10:
x=0.7 liters
Now the other acid solution is 3.5-0.7 which is 2.8 litera.
2+3+4+6+6+5+8+9+4+3+5+8+9=
Answers
Answer:
72
Step-by-step explanation:
5,9,15,21,26,34,43,47,50,55,63,72
Answer: it's 72
ok!! hope it helps
Which of the following is an example of a complex number that is not in the set of real numbers?
A) -7
B)
[tex]2 + \sqrt{3} [/tex]
C) 4+9i
D)
[tex]\pi[/tex]
Answers
Answer:
C
Step-by-step explanation:
By convention, it is C.
B is irrational but still real
D is irrational but still real
A is an integer which is real.
Answer: 4 + 9i
On edge2020.
Find the coordinates of the point P that lies along the directed line segment from A(-2,5) and B(2,-3) and partitions the segment in the ratio of 4 to 1.
A (1.6, -1.2)
B (1, 4.5)
C (1.2, -1.4 )
D (9, -2)
Part B
Find the coordinates of the point P that lies along the directed line segment from A(-3,-4) and B(5,0) and partitions the segment in the ratio of 2 to 3.
Group of answer choices
(-2.4, 0.2)
(0.2, -2.4)
(-0.2, 0.4)
(-0.4, 6)
Answers
Answer:
help
Step-by-step explanation:
What’s the answer for 5g=20
Answers
PLZZ HELP ME (50 POINTS)
Answers
Answer:
x = w / 57r is the answer
Please help me with this math question, try and explain it too if possible so I can understand.
Answers
Answer:
UW = 67
Step-by-step explanation:
In order to find UW, we need to add UV and VW because them together makes the entire line, also known in this problem as UW. This is our equation:
UV + UV = UW
This is the equation if you plug the numbers:
19 + 4x - 20 = 6x - 35
Combine like terms to make it easier to do the math:
4x - 1 = 6x - 35
Then do the math:
(4x - 4x) -1 = (6x - 4x) - 35
-1 = 2x - 35
(-1 + 35) = 2x (- 35 + 35)
34 = 2x
34/2 = 2x/2
x = 17
Then you plug in x for the UW expression:
6x - 35
6(17) - 35
102 - 35
67
UW = 67
4. 2) 836
does anyone know this?
Answers
Answer:
418
Step-by-step explanation:
2) 836 = 836/2
=418
•°•2) 836=418
Answer:
836/2=418,Hope it helps.
Solve (x + 5)2 = 48.
Answers
Answer:
x = -5 ±4sqrt(3)
Step-by-step explanation:
(x + 5)^2 = 48
Take the square root of each side
sqrt((x + 5)^2) = ±sqrt(48)
x+5 = ±sqrt(16*3)
x+5 = ±4sqrt(3)
Subtract 5 from each side
x = -5 ±4sqrt(3)
"Write two equations: one parallel, one perpendicular to (5,-2) y= 1/5x-3
Write in the form y=mx±b,y=mx±b (first the parallel, then the perpendicular)"
Answers
Answer:
For parallel:
gradient is 1/5
[tex]y = mx + c[/tex]
consider (5, -2):
[tex] - 2 = ( \frac{1}{5} \times 5) + c \\ - 2 = 1 + c \\ c = - 3[/tex]
[tex]{ \boxed{ \bf{equation : y = \frac{1}{5}x - 3 }}}[/tex]
For perpendicular:
gradient, m1:
[tex]m _{1} \times m_{2} = - 1 \\ m _{1} \times \frac{1}{5} = - 1 \\ \\ m _{1} = - 5[/tex]
gradient = -5
[tex]y = mx + c \\ - 2 = (5 \times - 5) + c \\ - 2 = - 25 + c \\ c = 23[/tex]
[tex]{ \boxed{ \bf{equation :y = - 5x + 23 }}}[/tex]
Answer:
Parallel: [tex]y=\displaystyle \frac{1}{5}x-3[/tex]
Perpendicular: [tex]y=-5x+23[/tex]
Step-by-step explanation:
Hi there!
What we must know:
Slope intercept form: [tex]y=mx+b[/tex] where m is the slope and b is the y-intercept (the value of y when the line crosses the y-axis)Parallel lines always have the same slopePerpendicular lines always have slopes that are negative reciprocals (ex. 2 and -1/2, -6/7 and 7/6)Finding the Parallel Line
[tex]y=\displaystyle \frac{1}{5} x-3[/tex]
Given this equation, we can identify that its slope (m) is [tex]\displaystyle \frac{1}{5}[/tex]. Because parallel lines always have the same slope, the slope of the line we're currently solving for would be [tex]\displaystyle \frac{1}{5}[/tex] as well. Plug this into [tex]y=mx+b[/tex]:
[tex]y=\displaystyle \frac{1}{5}x+b[/tex]
Now, to find the y-intercept, plug in the given point (5,-2) and solve for b:
[tex]-2=\displaystyle \frac{1}{5}(5)+b\\\\-2=1+b\\-2-1=b\\-3=b[/tex]
Therefore, the y-intercept is -3. Plug this back into [tex]y=\displaystyle \frac{1}{5}x+b[/tex]:
[tex]y=\displaystyle \frac{1}{5}x+(-3)\\\\y=\displaystyle \frac{1}{5}x-3[/tex]
Our final equation is [tex]y=\displaystyle \frac{1}{5}x-3[/tex].
Finding the Perpendicular Line
[tex]y=\displaystyle \frac{1}{5} x-3[/tex]
Again, the slope of this line is [tex]\displaystyle \frac{1}{5}[/tex]. The slopes of perpendicular lines are negative reciprocals, so the slope of the line we're solving for would be -5. Plug this into [tex]y=mx+b[/tex]:
[tex]y=-5x+b[/tex]
To find the y-intercept, plug in the point (5,-2) and solve for b:
[tex]-2=-5(5)+b\\-2=-25+b\\-2+25=b\\23=b[/tex]
Therefore, the y-intercept is 23. Plug this back into [tex]y=-5x+b[/tex]:
[tex]y=-5x+23[/tex]
Our final equation is [tex]y=-5x+23[/tex].
I hope this helps!
What is 5.67 written in standard form?
Answers
Answer:
0.567 X 10
Step-by-step explanation:
5.67 in standard form is 0.567
The coordinates of point T are (0,5). The midpoint of ST is (5,-2). Find the coordinates of point S.
Answers
Answer:
(10, -9)
Step-by-step explanation:
Xs = 5 -(0-5) = 5+5 = 10
Ys = -2 -(5-(-2)) = -2 - 7 = -9
so, the coordinates of point S => (10, -9)
Answer:
S(10, -9)Step-by-step explanation:
Use midpoint formula and assume S(x, y):
(0 + x)/2 = 5 ⇒ x / 2 = 5 ⇒ x = 10(5 + y)/2 = -2 ⇒ 5 + y = -4 ⇒ y = -4 - 5 ⇒ y = -9Is [tex] \frac{1}{ \sqrt{5} } [/tex] a rational or a non-rational number
Answers
Answer:
yes it is a rational number..
1/root 5 = root 5/5(multiplication of root 5 on numerator and denominator
Find the length of segment GH.
21
12
F
Answers
Answer:
GH = 9
Step-by-step explanation:
FH=FG+GH
21= 12+GH
GH = 21-12 =9
I hope I helped you^_^
what is the 30th square number
plz tell the answer
Answers
Answer:
900
.........................
Answer:
900
Step-by-step explanation:
30 square is like 30×30=900
if(2x-y)=4 then (6x-3y)=?
Answers
Answer:
12
Step-by-step explanation:
(2x-y)=4
Multiply the first equation by 3
3*(2x-y)=3*4
6x -3y = 12
Please Help Me Do This I cant understand it no matter how hard I try. (Problem in the image)
Answers
Answer:
7.3
Step-by-step explanation:
The length of AB is found using the distance formula
We need to know the coordinates of A and B
A = (-5,-4) and B = (-3,3)
The distance is
d = sqrt ( (y2-y1)^2 + (x2-x1)^2)
= sqrt( (3 - -4)^2 +(-3 - -5)^2)
= sqrt( (3+4)^2 +(-3+5)^2)
= sqrt(7^2+2^2)
= sqrt(49+4)
= sqrt(53)
=7.280109889
To the nearest hundredth
=7.3