1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
NeX [460]
3 years ago
8

What is the circumference of a 8 ft circle

Mathematics
1 answer:
Len [333]3 years ago
3 0
The circumfrence of an 8ft circle is 8 x 3.14 = 25.12ft. Hope this helps!
You might be interested in
The ratio of boys to girls in Mr. Hakeem's class is 64. If there are 18 boys, how many girls
Bad White [126]

Answer: C. 12 girls

Step-by-step explanation:

6 0
3 years ago
Meredith was paid $18 for recycling 30 pounds glass. What is this rate payment
hammer [34]

$1.67 for each pound of glass

3 0
3 years ago
Question 28 (1 point)
aniked [119]

Answer:

+ 16

Step-by-step explanation:

x² - 8x = - 10

to complete the square

add ( half the coefficient of the x- term )² to both sides

x² + 2(- 4)x + (- 4) = - 10 + (- 4)²

x² - 8x + 16 = - 10 + 16

thus 16 is added to both sides to complete the square

4 0
2 years ago
Find the equation, (f(x) = a(x - h)2 + k), for a parabola containing point (2, -1) and having (4, -3) as a vertex. What is the s
Nataliya [291]

Answer:

f(x)=\frac{1}{2}x^2-4x+5

Step-by-step explanation:

A parabola is written in the form

f(x)=a((x-h)^2+k) (1)

where:

h is the x-coordinate of the vertex of the parabola

ak is the y-coordinate of the vertex of the parabola

a is a scale factor

For the parabola in the problem, we know that the vertex has  coordinates (4,-3), so we have:

h=4 (2)

ak=-3

From this last equation, we get that a=\frac{-3}{k} (3)

Substituting (2) and (3) into (1) we get the new expression:

f(x)=-\frac{3}{k}((x-4)^2+k) = -\frac{3}{k}(x-4)^2 -3 (4)

We also know that the parabola  contains the point (2,-1), so we can substitute

x = 2

f(x) = -1

Into eq.(4) and find the value of k:

-1=-\frac{3}{k}(2-4)^2-3\\-1=-\frac{3}{k}\cdot 4 -3\\2=-\frac{12}{k}\\k=-\frac{12}{2}=-6

So we also get:

a=-\frac{3}{k}=-\frac{3}{-6}=\frac{1}{2}

So the equation of the parabola is:

f(x)=\frac{1}{2}((x-4)^2 -6) (5)

Now we want to rewrite it in the standard form, i.e. in the form

f(x)=ax^2+bx+c

To do that, we simply rewrite (5) expliciting the various terms, we find:

f(x)=\frac{1}{2}((x^2-8x+16)-6)=\frac{1}{2}(x^2-8x+10)=\frac{1}{2}x^2-4x+5

6 0
3 years ago
The length of a rectangle is 9.7cm more then 4 times the width. If the perimeter of the rectangle is 91.4cm, what are the dimens
Ksju [112]
The dimensions are Width of the rectangle = 7.2 cm
Length of the rectangle = 4x + 9.7
                                      = 28.8 + 9.7
                                      = 38.5 cm. thats all
4 0
3 years ago
Other questions:
  • the total number of tourists to an amusement park in the past year is 12,000,000 when rounded to the nearest million.The number
    11·1 answer
  • Find the greatest common factor of 3y2 - 4y. Type an expression for the greatest common factor in the space provided. Type only
    11·1 answer
  • What is the value of 5 to the power of 4 over 5 to the power of 6?
    12·2 answers
  • PLEASE HELP ME!! I need this answered right now
    8·2 answers
  • Yesterday, Bridget's Snack Shack went through 2 bottles of ketchup. If they used 2 3/5 times
    13·1 answer
  • The formula V=lwh is used to calculate the volume of a rectangular prism. What is the equation solved for h?
    15·2 answers
  • Can anyone help me with this question
    7·1 answer
  • 1400 divided by 32 Banana anan
    7·1 answer
  • Simplify by using order of operations: 22−(8∙1)÷(6−4)−2
    10·1 answer
  • Multiply. Write the answer in the simplest form.<br><br> 4/7 x 4 3/8 x 5/6
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!