Answer:
x = -10
Step-by-step explanation:
y = 2x + 5
-15 = 2x + 5
-20 = 2x
-10 = x
Answer:
C. 19.4
Step-by-step explanation:
c=a2+b2−−−−−−√
a=162+112−−−−−−−−√
c=256+121−−−−−−−−√
c=377−−−√
c=19.4165
Yes because there is an invisible one in fron to y
1y means 1 times y
basically you can multiply 1 times anything and it will remain the same so therefor
y=1y=(1)(y)=(1)(1)(y)=(1)(1)(1)(y)=(1)(1)(1)(1)(1)(1)(1)(1)(1)(1)(1)(y) etc
so basically he is correct since y=1y so therefor
y+4=1y+4
subtract 4 from both sides
y=1y
subsitute
y=1y
1y=1y
true
Answer:B.3.53
Step-by-step explanation:29x3=.87 79x4=2.46 add them to get 3.53
Hope it helps.