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8_murik_8 [283]
3 years ago
13

How much of the sphere do you have to paint red so that no matter ow you put a cube in it, some corner touches red?

Mathematics
1 answer:
Triss [41]3 years ago
4 0

Explanation:

To achive that you have to piant a ring in red, which will have its big diameter equal to the sphere diameter and its small diameter equal to the cube diagonal.

The diagonal of the cube can be calculated using Pithagoras:

D^2=L^2+L^2

Where D is the diagonal and L is the side of the cube

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Sarah Jones earns $640 per week selling life insurance for Farmer’s Insurance plus 5% of sales over $5,750. Sarah’s sales this m
Alex_Xolod [135]

Answer:

$2560+$1100=$3660

Step-by-step explanation:

$640×4=$2560 if the month is over and she is due a payment

5%×$22000=$1100 of sales if they are to be considerred and paid every month

3 0
3 years ago
X and Y are continuous values, both measured to 2 significant figures. X=230 and Y=400. work out the greatest possible value of
kirill115 [55]
"Two significant figures" means that a digit after the second one could actually be anything ... it wasn't measured. 'X' could be anything from 230 to 239. 'Y' could be anything from 400 to 409. The greatest possible value of that fraction is. (239)/(409 squared) .
8 0
3 years ago
Randy spins the arrow on a spinner with 5 equal sections labeled A,B,C,D, and EVEN. Then ,he rolls a 6-sided number cube with si
aivan3 [116]
You have 1 out of 5 chances to get a A in the spinner 
<span>You have a 1 out of 6 chances to get a 4 </span>
<span>1/5 times (x) 1/6 = 1/30</span>
8 0
3 years ago
Read 2 more answers
A pair of numbers that has the sum of 12 and a difference of eight
anygoal [31]

Answer:

2 ; 10

Step-by-step explanation:

a + B = 12

a - B = 8

a = 12 - B

(12 - B) - B = 8

a = 12 - B

12 - 2B = 8

B = 2

A = 10

7 0
2 years ago
What is the perimeter of RSTUV?
MrMuchimi

Answer:

this should be 132 units   i hope this helps!   :)

Step-by-step explanation:

so these figures are similar

we are given 3 side measurements on one, and 3 on the other

we know that side BA is 10 units, and that SR which is the same side, is 14 units

we can conclude that they added 4 units to this side

so with the other side lengths that we are given we can figure out what the length of the perimeter of RSTUV is

10 + 4 = 14

15 + 4 = 19

28 - 4 = 24  

42 - 4 = 38

25 + 4 = 29

42 TU

28 UV

19 VR

14 SR

29 ST

add all the side together to get 132 units

3 0
3 years ago
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