Answer:1 11/20 (I think)
Step-by-step explanation: First subtracting 3 - 2 gets you 1. so we keep that aside and do fractions. first, what do 4 and 5 have in common? They both can be turned to 20. 3/4 can be multiplied to 20 4x5(20) so we do 3x5=15 now you have 15/20. Hope this makes sense. now we do 1/5 to ?/20 5x4=20 1x4=4 so 15/20-4/20=11/20 11/20+1= 1 11/20
-Sorry if its too complicated
(undo ur answer if u trusted me before bc I messed up)
(its good now)
Answer:
x² - 2x + 1
Step-by-step explanation:
We want to express (x - 1)² as a trinomial. In other words, we want to expand this out.
(x - 1)² = (x - 1)(x - 1)
We use FOIL (First, Outer, Inner, Last). The First terms are x and x. Multiply:
x * x = x²
The outer terms are x and -1. Multiply:
x * (-1) = -x
The inner terms are -1 and x; multiply:
(-1) * x = -x
The last terms are -1 and -1; multiply:
(-1) * (-1) = 1
Add all these together:
x² + (-x) + (-x) + 1 = x² - 2x + 1
<em>~ an aesthetics lover</em>
Answer: (2a+2b,2c)
the first one
Step-by-step explanation:
you can add or subtract letter such as *a or *b so you "add" them which is 2a+2b and "y" for point B is 2c so it stays the same
sorry i such at explaining
Answer:
8.
60 * 2 + 30 = 150km
225 - 150 = 75km
50km/h and 75km, so 1.30h
1.30 + 2.30 + 0.10 = 4.10h
Im not very good at english so I dont know how to explain...
9.
1.30 - 47 = At 12.43
For triangle a use Pythagorean theorem to find the hypotenuse.
A^2+b^2=c^2
15^2+9^2=c^2
225+81=306
C^2=306
C=17.49 or square root of 306
For b) 18^2+B^2=23^2
324+B^2=529
B^2=205
B=14.32 or square root of 205
