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andre [41]
3 years ago
6

Find the radius and the diameter to the nearest hundredth when C = 7π yd. Use 3.14 for π.

Mathematics
1 answer:
valentinak56 [21]3 years ago
5 0

Answer:

Diameter = 7

Radius = 3.5

Step-by-step explanation:

Hi! Ace here.

So, the formula to find circumference is dπ or 2rπ

So to find the diameter, you do the circumference/π

To find the radius, you'd do the circumference/2π

Plug-in those numbers and there you go!

Hope this helps, let me know if you have any questions.

I know this was a very vague explanation so I encourage you to ask any questions. Thank you!

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Does anyone know how to do synthetic division? I'm so lost.
madam [21]
For (polynomial)/(x-constant)
do

constant | coefients of polynomial
               |___________________

if write 1 for every power, if a power is missing, write 0 tehre
this is kind of complicated
so what you do is start at the top, at the first number inside that wierd thing
bring it down below the line
multiply the left number
move it up and right 1 collumn
add that collumn,  and write the sum below the line
repeat

so for  yours
(x-4) so the constant outside is 4

so
4|1  13  -64  -20  16
  |_______________

bring down the first row thing
4|1  13  -64  -20  16
  |_______________
   1

multily by 4 and move up and right
4|1  13  -64  -20  16
  |___<u>4__________</u>
   1

add
4|1  13  -64  -20  16
  <u>|___4__</u>________
   1    17

multiply and move
4|1  13  -64  -20  16
  |__<u>_4__68_</u>_____
   1    17

add
4|1  13  -64  -20  16
  <u>|___4__68______</u>
   1    17  4

multiply and move
4|1  13  -64  -20  16
  |___<u>4__68_16_</u>__
   1    17  4   

add
4|1  13  -64  -20  16
  |___<u>4__68_16</u>___
   1    17  4     -4

multiply and movie
4|1  13  -64  -20  16
  |___<u>4__68_16_-16</u>
   1    17  4     -4

add
4|1  13  -64  -20  16
  |___<u>4__68_16_-16</u>
   1    17  4     -4   0

so the coefients 1,17,4,-4,0
and since we started with 4th degree (x^4) we minus 1 (to get x^3)
1x^3+17x^2+4x-4 and 0 remainder
2nd option is your answer
5 0
4 years ago
What is the value of the expression?
Llana [10]
Answer: -9

(-3) ³= -27

6 ³/12 = 216/12 = 18
-27+18=-9
6 0
4 years ago
Factorise:<br> 3x3-3x2y+xy2-x2y
qaws [65]

3x^3-3x^2y+xy^2-x^2y

All terms have an x in them, so you factor that out first to get

x(3x^2 -4xy+y^2)

Now the 2nd degree equation will be of the form (3x- ... y)(x- ... y) and by just trying you find that the ... is just 1. So the factorization is:

x(3x - y)(x - y)

5 0
4 years ago
Can someone help me please
I am Lyosha [343]

Answer:

i believe it is Translation

Step-by-step explanation:

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7 0
3 years ago
Read 2 more answers
Original price of a sweater:19.50 discount:20 percent
dexar [7]

Answer:

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Step-by-step explanation:

if your finding the discounted price, you'd take 20% and turn it into .20 and then subtract 19.50 and .20

6 0
3 years ago
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