1+2=3. 4/10+2/10=6/10. 3+ 6/10=3 6/10
Answer: x=-2
Y= -20
Step-by-step explanation
You replace the y in the second equation with 10x. This is because it says 10x=y
2x+10x=12x so you put that
12x=-24
To get x by its self you divide by 12.
-24 divided by 12 is -2.
Now you plug in -2 to either equation as y. I chose the first one because it's easier.
10(-2)=y
-20=y
Hello:
3x²+5x+2=0
delta = (5)²-4(3)(2)=1
x =( -5 <span>±1)/6
x= -2/3 or x=-1
t4-81=(t²)² -9² = (t²-9)(t²+9) =(t-3)(t+3)(t²+9)....(answer B)</span>
a)
the average speed, well it does 10 ft in 1.6 secs, so is simply their quotient, 10/1.6 = 6.25 ft/s on average.
b)
over the horizontal, well, it covered horizontally 9.25 ft in those 1.6 secs, so their quotient is 9.25/1.6 = 5.78125 ft/s on average.
c)
we don't know the vertical distance, but

so, it covered vertically about 3.8 ft in those 1.6 secs, so then 3.8/1.6 = 2.375 ft/s on average
"97.5" will be the American women's % having their shoe sizes that are no more than 11.33.
Given values are:
- Mean = 8.33
- Standard deviation = 1.5
Now,
= 
=
(2 above Standard deviation)
→ The data values are between 8.33 and 11.33,
= 
=
(%)
→ The data value below 11.33,
=
(%)
hence,
→ The percentage of American women will be:
= 
=
(%)
Thus the above answer is appropriate.
Learn more about empirical rule here:
brainly.com/question/18529739