1 000 000
1 000 000.0
We move the decimal point to the left hand side until we have a number that is from 1 to 9.
Should we move the point.
= 1.0 * 10⁶
Answer:
L=7cm
W= 26cm
Step-by-step explanation:
Step one
Given data
let the lenght be x
L= x
W= 3x+5
P= 66
Step two:
P=2L+2W
substitute
66= 2x+2(3x+5)
66= 2x+6x+10
66= 8x+10
collect like terms
66-10= 8x
56= 8x
x= 7cm
L= 7cm
W= 3(7)+5
W= 21+5
W= 26cm
since the triangles are similar
angle DEC = 60 degrees
3 angles inside a triangle equal 180 degrees
BAC = DCE = 64
CBA = EDC = 56
DEC = 180 -56 -64 = 60 degrees
used angle-angle theorem
Answer: 9x+4
Step-by-step explanation: We take out the parentheses by multiplying both values by 2 (2 times x and 2 times 3) to get 2x-6. Now our equation is 9x+2x-6-2x+10. We can see that there is a +2x and a -2x so we just take both of them out as they cancel out each other. Now our equation is 9x -6+10. we add 10 to -6 to get +4. The result is 9x+4.