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lana66690 [7]
3 years ago
10

A bag of marbles contains 4 green marbles

Mathematics
1 answer:
antoniya [11.8K]3 years ago
5 0

Well then the bag contains 4 green marbles

Hope this helped

Also the bag is a size XXS

You might be interested in
If 3 * 9 + 2y = 47 what is the value of y
docker41 [41]
Answer: 10

Why?
3*9+2y=47
3*9= 27
27+2y=47
47-27= 20
2y=20
20/2=10
Y=10

Hope this helps :D
6 0
3 years ago
The sum of the squares of three consecutive integers is 194. What are the integers?
Grace [21]
Consecutive integers are 1 apart
they are
x,x+1,x+2
the sum of their squares is 194

x²+(x+1)²+(x+2)²=194
expand
x²+x²+2x+1+x²+4x+4=194
x²+x²+x²+2x+4x+1+4=194
3x²+6x+5=194
minus 5 from both sides
3x²+6x=189
3(x²+2x)=189
divide both sides by 3
x²+2x=63
minus 63 from bot sides
x²+2x-63=0
what 2 numbers multiply to get -63 and add to get 2
-7 and 9
(x-7)(x+9)=0
set each to zero

x-7=0
x=7

x+9=0
x=-9

for x=7
x+1=8
x+2=9

for x=-9
x+1=-8
x+2=-7

the integers are 7,8,9 or -9,-8,-7
4 0
3 years ago
Given: Rectangle ABCD, DE = CF,<br> Prove:<br> AADF ABCE
siniylev [52]
Give more points, please.
8 0
3 years ago
Hannah purchased three items at the store for $7.05, $8.12, and $3.97. She paid for
vichka [17]

Answer:

She should receive $30.86

Step-by-step explanation:

$7.05 + $8.12 + $3.97 =19.14

50 - 19.14 = 30.86

6 0
3 years ago
Find sin(x/2), cos (x/2), and tan(x/2) from the given information.
zhannawk [14.2K]

Step-by-step explanation:

sin(x/2) = sqrt((1 - cos(x))/2)

cos(x/2) = sqrt((1 + cos(x))/2)

tan(x/2) = sin(x/2)/cos(x/2)

sin(x) = 15/17

so, we can assume the Hypotenuse of the right-angled triangle is 17, the vertical leg is 15.

via Pythagoras we get the 3rd, horizontal side :

17² = 15² + side²

289 = 225 + side²

64 = side²

side = 8

cos(x) = 8/17

sin(x/2) = sqrt((1 - 8/17)/2) = sqrt(9/34) = 3/sqrt(34) =

= 0.514495755...

cos(x/2) = sqrt((1 + 8/17)/2) = sqrt(25/34) = 5/sqrt(34) =

= 0.857492926...

tan(x/2) = 3/sqrt(34) / 5/sqrt(34) = 3/sqrt(34) × sqrt(34)/5 =

= 3/5 = 0.6

6 0
2 years ago
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