The diameter of a circle is 4 feet. What is the circumference?
d=4 ft
Give the exact answer in simplest form.
I need the answers
Answers
Answer: 4π
Step-by-step explanation: C= 2πr; 2r=d; C=dπ; C=4π!
Answer:
4π ft
Step-by-step explanation:
C = 2πr (Circumference formula for a circle)
diamater = 4, so diamter = 2 x radius, 4 = 2 x r , so r = 2
Use formula:
C = 2π(2) = 4π
4π ft (Exact answer)
Related Questions
Determine the projection of u=1.6i+3.3j in the v=-2.1-.5j direction.
A.8i+.2j
B.2.3i+.5j
C. -.6i-1.3j
D. -1.2i-1.1j
Answers
Answer:
[tex]0.80i +0.2j[/tex]
Step-by-step explanation:
The projection of u on v is expressed as;
[tex]proj_{v} u = \dfrac{u*v}{|v|^2} * v[/tex]
Given
u=1.6i+3.3j
v=-2.1i-.5j
u*v = (1.6i+3.3j )*(-2.1i-0.5j )
u*v = 1.6i(-2.1i) + 3.3j(-0.5j)
u*v = -3.36 - 1.65
u*v = -5.01
|v|² = (√(-2.1)²+(-0.5)²)²
|v|² = (-2.1)²+(-0.5)²
|v|² = 4.41+0.25
|v|² = 4.66
Substitute into the formula;
[tex]= \frac{1.71}{-5.01} * (-2.1i - 0.5j)\\= -0.3413 (-2.1i - 0.5j)\\= 0.8i + 0.17j\\= 0.80i +0.2j[/tex]
Write the percent as a fraction and as a decimal.
5% tax
Fraction (simplified) -
Decimal -
Answers
Answer:
Fraction = [tex]\frac{1}{20}[/tex] and Decimal = 0.05
Step-by-step explanation:
Percent means, some number over a hundred.
in this case we have 5%
[tex]\frac{5}{100} = \frac{1}{20}[/tex]
and for decimal form we just move the decimal 2 places to the left because our denominator is a 100 and we get 0.05.
PLEASEEEEEEEEEEEEEEE HELPPPPPPPPPPPPPPPPPPPPPPP
Answers
85 + x = 131
-85. -85
x= 46
HELP PLEASE 50 POINTS
expression with its simplified form.
Answers
which of the following segments is a diameter of 0?
Answers
Answer:
ZX
Step-by-step explanation:
A cube. Point B is the top right point of the top face. Point A is the bottom left point of the bottom face and point C is the top right point of the bottom face. Diagonals are drawn from B to A and from A to C. Side B C is 10 inches long, and Side A B is StartRoot 300 EndRoot inches long. What is the length of Side A C? 14 in. StartRoot 200 EndRoot in. StartRoot 290 EndRoot in. 20 in.
Answers
Answer:
the answer is b
Step-by-step explanation:
i just did the assignment
Answer:
b
Step-by-step explanation:
In comparison to where would be
located on a number line?
A.closer to 0
B.the same point
C.closer to 1
D.at 0
Answers
HEY GUYS COULD YOU HELP ME WITH THESE TWO QUESTIONS!!! DON'T WORRY YOU'LL GET YOUR POINTS!!
Answers
Answer:
i am unsure
Step-by-step explanation:
I HEART POINTS
x-y=12
Substitute: x-(94-x)=12
Distribute: x-94+x=12
Simplify: 2x=106
Solve: x=53
Plug x back into equation
x-y=12
53-y=12
y=41
x= 53, y=41
Second Question:
8+x=y
x+y = 66
Substitute: x+8+x =66
Simplify: 2x+8 =66
Solve : x=29
Plug x back into equation
x+y=66
29+y=66
y = 37
x=29, y=37
if ur lucky u get 25 points!
Answers
Answer:
What do you mean lucky?
Answer:
Yes
Step-by-step explanation:
I need help with this plssss
Expert plsss help meeeee
Answers
Answer: 350
Step-by-step explanation:
Answer:
1,283 m3
Step-by-step explanation:
Ok so the volume formula is:
V = π×r² × h/3π (pi) = 3.14
² = power of two so that number times that number
Example:
3² = 3 × 3 = 9
To find the radius since the diameter is given divide by 2:
14 / 2 = 7
Next we solve the equation:
V = 3.14 × 7² × 25/3 = 1282.817
To round to the neareast whole number 1,283
9. Find x. Round answer to nearest whole number.
A) 58
B) 59
C) 60
D) 61
Answers
Answer:
the answer. is 60 because you round of 64
hi hottie, pls help me !
Mrs. St. Louis purchased an iPhone 12 Pro. The decreasing value of her phone, after t years, is modeled by the function V(t)=1,200(0.65)^t
Fill in the numbers from the options to correctly complete the statements interpreting this function.
The phone initially cost $______
The value of the phone is depreciating at a rate of _____ % each year.
Answers
Answer:
1200
0.65
The answers are in the function
Please help! I don't know where to start
Answers
Answer:
First find the sum of 15 n-1
Step-by-step explanation:
then you can continue to 2n-1
Find the distance between the points (–10,3) and (–2,3).
Answers
Answer:
8
Step-by-step explanation:
10 - 2
For 2 + 5(x-3) > 3x + 11, the answer is x>
Answers
Answer:
x >12
Step-by-step explanation:
2 + 5(x-3) > 3x + 11
Distribute
2 + 5x - 15 > 3x+11
Combine like terms
5x -13 > 3x+11
Subtract 3x from each side
5x-13-3x> 3x+11-3x
2x-13 > 11
Add 13 to each side
3x-13+13> 11+13
2x> 24
Divide by 2
2x/2 > 24/2
x >12
Please help me, I’m struggling.
A: 116 square cm
B: 106 square cm
C: 143 square cm
Answers
Answer:
The answer is A. 116 square cm
Step-by-step explanation:
What is the slope of the line graphed in this grid? Help.
Answers
Answer:
A slope of 2/3
Step-by-step explanation:
if you look at the line, starting at the y axis, then just count up 2 and over three, in other graphed lines, just start at the y axis and try to find where the line crosses a specific point, then calculate the rise/run.
What is the product of (3y^-4)(2y^-4)?
Answers
Answer:
6/ y^8
Step-by-step explanation:
Find the derivative of f(x) = 8x + 4 at x = 9. (6 points)
Answers
Answer:
f(x) = 76
Step-by-step explanation:
All you do is plug-in for x: (x = 9)
f(x) = 8x + 4
f(x) = 8(9) + 4
f(x) = 72 + 4
f(x) = 76
trish wants to buy x oranges and y mangoes which she intends to carry in her bag. Her bag has space for only 6 fruits. Write an inequality to represent this information.
Answers
Answer:
x + y [tex]\leq 6[/tex]
Step-by-step explanation:
The amount of Oranges (x) and the amount of Mangoes (y) will add up to be less than or equal to 6.
This condition is represented by the inequality x + y ≤ 6
What is inequality?In mathematics, inequalities specify the connection between two non-equal numbers. Equal does not imply inequality. Typically, we use the "not equal sign ()" to indicate that two values are not equal. But several inequalities are utilized to compare the numbers, whether it is less than or higher than.
In this case, Trish wants to buy x oranges and y mangoes, and she intends to carry them in her bag.
Her bag can hold a maximum of 6 fruits.
Since she wants to buy both types of fruit, the total number of fruits must be less than or equal to 6.
The inequality to represent this situation is:
x + y ≤ 6
This inequality represents that the sum of the number of oranges and mangoes Trish buys should be less than or equal to 6, which is the maximum number of fruits her bag can hold.
Learn more about inequalities here:
https://brainly.com/question/30231190
#SPJ3
Can someone match all of these definitions to all five words for me? I’m very confused but I’ll mark brainlist if you do at least 4! Please and thanks
Answers
Solution: Any value for a variable that makes the equation true.
Reciprocal: Focuses on the use of multiplication and division
Coefficient: A number that is multiplied by a variable in an algebraic expression is a coefficient
Term: A term of an algebraic expression is a number, variable, or product of numbers and variables
Base: The base of a power is the factor that is multiplied repeatedly in the power.
Hope this helps, and have a great day!
Answer:
Solution: any value for a variable that makes an equation true
Reciprocal: focuses on use of multiplication and division
Coefficient: A number being multiplied by a variable in an algebraic expression
Base: the base of a power is a factor that is multiplied repeatedly in power
u got the term definition right
Step-by-step explanation:
I NEED HELP WITH MATH PLS
screenshot is posted below
Answers
Answer: The correct answer is A or B
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Step-by-step explanation:
what is m (angle) 2 if m (angle) 4 = 120°?
Answers
Answer:
if 4 is 120° then 2 is also 180° since they are opposite angles.
Can someone help me with this. Thank you.
Answers
Answer:
All are true
Step-by-step explanation:
2) True
3) True
4) True
Aidan bought a pizza cut into 5 slices. If he ate one slice for lunch, what percentage of the pizza remained uneaten?
Answers
Answer:
80%
Step-by-step explanation:
You started of with 5/5 once one slice was eat it became 4/5
you must then convert 4/5 into a percent
To convert a fraction to a percent, divide the numerator by the denominator. Then multiply the decimal by 100.
so 4 divided by 5 =0.8
0.8 x 100= 80
80%
Can someone help me out please.
Answers
Answer:
area = (10 x 19) - (0.5 x 19 x 5) = 142.5 in²
Step-by-step explanation:
Answer:
142.5 in^2
Step-by-step explanation:
Area of trapezoid= a + b / 2 · h (a and b are bases of the trapezoid)
A= 5 + 10 / 2 · 19
A= 15 / 2 · 19
A= 7.5 · 19
A= 142.5 in^2
This is just one way to do it. There are many more ways.
Find the Surface area of the following figure below
Answers
Answer:
495
Step-by-step explanation:
Base area = 11*11 = 121
Lateral area = (11*4)*17/2 = 11*2*17 = 374
121+374=495
Triangle area is A = 1/2*B*H (B meaning base and h meaning height)
Rectangle area is A = L * W (L meaning length and W meaning width)
So the you have triangles with a base of 11 and height of 17 so 11*17*(1/2). That value times 4 because there are 4 of them so you get. 374 meters^2
Then you have the rectangle which is 11*11 so 121 add that to 374 and you get 495 meters^2 so the surface area is 495 meters^2 if I did it correctly.
3x+4y=-12 x-y=10 using elimination no links or download
Answers
Answer:
x = 4, y = -6
Step-by-step explanation:
Elimination Method
3x + 4y = -12 ---- (1)
x-y = 10 ---- (2)
(2) x 4:
4(x) 4(-y) = 4(10)
4x - 4y = 40 ---- (3)
(1) + (3):
3x + 4y + (4x - 4y) = -12 + 40
3x + 4y + 4x - 4y = 28
7x = 28
x = 28/7
x = 4
Sub x = 4 into (2):
(4) - y = 10
-y = 10 - 4
-y = 6
y = -6
Please help!!!!! 8th grade mathHint not A
Answers
Answer:
c
Step-by-step explanation:
it passes vertical line test and is linear
Answer:
C
Step-by-step explanation:
The answer is C. Hoped it helped.
PLEASEEE EEEEENSDNN’SJSJ I STG PLEASE HELP ME
Answers
Rhombuses and parallelograms are always quadrilaterals, having four sides.
However, they both don't always have equal side lengths, although sometimes they do.
I hope this helps ^^