Answer:
i got -2x - x - 7
Step-by-step explanation:
if im wrong sorry
I’m pretty sure it’s
6x-10y+x^2-21
Unless I read it wrong then sorry
Answer:
38.5sqft
Step-by-step explanation:
If we have the 2 shorter sides of a right triangle, we can compute the area as:
A = ab/2
A = 7ft * 11ft / 2 = 77sqft/2 = 38.5sqft
Answer:
Step-by-step explanation:
Ally gives her sister = 1/5 stickers
Ally gives her cousin = 1/5 of the remainder stickers
Assume Number of sticker Ali has = 1
Remainder after giving stickers to her sister = 1 - 1/5 = 4/5
Number of stickers she gave her sister = 
=
Sticker she has = 
=
=
Sticker left with Ally is equal to .
Answer:
The geometric mean of the measures of the line segments AD and DC is 60/13
Step-by-step explanation:
Geometric mean: BD² = AD×DC
BD = √(AD×DC)
hypotenuse/leg = leg/part
ΔADB: AC/12 = 12/AD
AC×AD = 12×12 = 144
AD = 144/AC
ΔBDC: AC/5 = 5/DC
AC×DC = 5×5 = 25
DC = 25/AC
BD = √[(144/AC)(25/AC)]
BD = (12×5)/AC
BD= 60/AC
Apply Pythagoras theorem in ΔABC
AC² = 12² + 5²
AC² = 144+ 25 = 169
AC = √169 = 13
BD = 60/13
The geometric mean of the measures of the line segments AD and DC is BD = 60/13
