Analyze the figure and the two-column proof. Statements
ReasonS
1. AFED; AB CD
1. given
F
E
2. 2AFC and DEB are right 2.given
angles
3. 2AFC 4DEB
3. all right angles are
4. AB CCD
4. definition of
5. AB+ BC = CD + BC
5. addition property
A
B
D
6. AB+BC AC
CD +BC = BD
6. segment addition
postulate
Which statement/reason pair can be used when
proving FC EB?
7. AC BD
7. substitution property
:A AAFC
8. ACBD
8. definition of
9.

What is the value of the expression i 0 × i 1 × i 2 × i 3 × i 4? 1 –1 i –i

The ratios of boys to girls on a soccer league is 2: 5. if there are 28 boys, how many girls are playing soccer? extra points! will mark as brainiest asap

At wind speeds above 1000 centimeters per second (cm/sec), significant sand-moving events begin to occur. wind speeds below 1000 cm/sec deposit sand and wind speeds above 1000 cm/sec move sand to new locations. the cyclic nature of wind and moving sand determines the shape and location of large dunes. at a test site, the prevailing direction of the wind did not change noticeably. however, the velocity did change. fifty-nine wind speed readings gave an average velocity of x = 1075 cm/sec. based on long-term experience, σ can be assumed to be 245 cm/sec. (a) find a 95% confidence interval for the population mean wind speed at this site. (round your answers to the nearest whole number.) lower limit cm/sec upper limit cm/sec