21 times 21 Is equal to 441
Answer:
100%
Step-by-step explanation:
6 possibilities: 3 odd and 3 even
P(odd or even) 6/6= 100%
Answer:
c (2,3,-2)
Step-by-step explanation:
3x+y+z = 7
x+3y-z =13
y = 2x-1
Add the first two equations together to eliminate z
3x+y+z = 7
x+3y-z =13
----------------------
4x+4y = 20
Divide by 4
4x/4 + 4y/4 = 20/4
x+y = 5
We know y = 2x-1. substitute this into the equation
x+ (2x-1) = 5
Combine like terms
3x-1 =5
Add 1 to each side
3x-1+1 =5+1
3x=6
Divide by 3
3x/3 = 6/3
x=2
Now we can find y
y = 2x-1
y = 2(2)-1
y =4-1
y= 3
We know x and y, now we need to find z
3x+y+z = 7
3(2) +3 +z = 7
6+3+z =7
9+z=7
Subtract 9 from each side
(-9+z =7-9
z=-2
So x=2,y=3 =-2
(2,3,-2)
Answer:
They both have a rattle
(Letter by letter for each box)
Step-by-step explanation:
All you are doing is turning the fractions into percentages or decimals, and the percentages into fractions or decimals. You also convert the shaded shapes into fractions, decimals, or percents.
For example, 1/2= 50%, 20%=.2, and .5=50%.
I hope I helped!! If you need me to explain more just let me know!
7) Draw a quadrilateral with 1 pair of parallel side. What special quadrilateral have you drawn?
Properties of a quadrilateral:
1) has four sides or edges
2) has four vertices or corners
3) interior angles add up to 360°
US definition: A trapezoid is a quadrilateral that has 1 pair of parallel sides.
UK definition: A trapezium is a quadrilateral that has 1 pair of parallel sides.
