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
mario62 [17]
3 years ago
14

Please Help i have a test the next day

Mathematics
2 answers:
Delicious77 [7]3 years ago
5 0

if the diameter is 4 units, then its radius is half that, or 2.

\bf \textit{area of a circle}\\\\ A=\pi r^2~~ \begin{cases} r=radius\\ \cline{1-1} r= 2 \end{cases}\implies A=\pi 2^2\implies A=4\pi \implies \stackrel{\pi =3.14~\hfill }{A\approx 12.57}

earnstyle [38]3 years ago
3 0

Answer:

12.6 ft²

Step-by-step explanation:

The formula for the area of a circle is

A = πr²

If d = 4 ft,

   r = 2 ft

  A = 3.14 × 2² = 3.14 × 4 = 12.6 ft²

You might be interested in
14
kipiarov [429]

Answer:

Jumper, y = 172

Shirt, x = - 105

Step-by-step explanation:

Let :

Shirt = x

Jumper = y

5x + 4y = 163 - - (1)

3x + 2y = 29 - - - (2)

Multiply (1) by 3 and (2) by 5

15x + 12y = 489 - - - (3)

15x + 10y = 145 - - - (4)

Subtract :

12y - 10y = 489 - 145

2y = 344

y = 344 / 2

y = 172

Put y = 172 in (3)

15x + 12(172) = 489

15x + 2064 = 489

15x = 489 - 2064

15x = - 1575

x = - 105

The values ;

Jumper, y = 172

Shirt, x = - 105

We weren't supposed to obtain a negative value, kindly check if the parameters given are correct.

5 0
3 years ago
there is an unknown number in the sequence counting backward. The number is after 48. The number is before 46. What is the unkno
Ghella [55]
The unknown number is 47.
5 0
3 years ago
15. Which number is equivalent to 0.000001: 10^6 or 10^-6? Explain how you know.<br><br> Plz help me
atroni [7]
Dannng I thought I seen this one before
3 0
3 years ago
If j= 14, find the value of 1/2j.
Yakvenalex [24]

Answer:7

Step-by-step explanation:

1/2 of j is the same as j ÷ 2

14 ÷ 2 = 7

8 0
3 years ago
A number n is increased by 8. If the cube root of that results equals -0.5, what is the value of n?
jek_recluse [69]

The cube root of (n increased by 8), or  ∛(n+8), is -0.5, or -1/2.

∛(n+8) = -1/2.  To solve this for n, cube both sides, obtaining n+8 = -1/8.

Eliminate the fraction by mult. all three terms by 8:             8n + 64 = -1

Solving for n:  8n = -65, so that n = -65/8.

8 0
3 years ago
Other questions:
  • Show how to solve 2/8 greater than 5/8
    8·1 answer
  • 30 is 6 times greather than
    8·1 answer
  • Solve 5y'' + 3y' – 2y = 0, y(0) = 0, y'(O) = 2.8 y(t) =( Preview
    13·1 answer
  • A lightbulb is installed. With probability 1/3 , it burns out immediately when it is first installed. With probability 2/3 , it
    14·1 answer
  • PLEASE HELP ASAP!!! CORRECT ANSWERS ONLY PLEASE!!!
    9·1 answer
  • Find the vertex of y=x²-6x+4
    10·1 answer
  • Need this done quick, ty!
    13·1 answer
  • I need help bc i dont understand so plz help due tomorrow
    8·1 answer
  • Can someone help with this
    15·1 answer
  • Find the possible values for k for which the line y = (1/2)x + k is tangent to<br> x^2 + y^2 = 8k.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!