Option 1. is obtained by eliminating the parameter.
Step-by-step explanation:
Step 1:
We have that and
Take as equation 1.
Assume is equation 2.
We need to determine a value that is equivalent to t so it can be substituted in equation 2.
Step 2:
If we square equation 1, we get
So we have a value that can replace t, so we substitute this is equation 2.
so
which is the first option.
Answer:
DF = 5
m∠B = 100°
Step-by-step explanation:
It is assumed that ΔABC ≅ ΔDEF
So at this point, all of the measurements that is in one Δ, it also shares the measurements to the other Δ.
AC ≅ DF
DF = 5
AC = 5
m∠B ≅ m∠E
m∠E = 100°
m∠B = 100°
14 times 0.999 blank 14
probably it is a relation symbol
=
>
<
<u>>
<</u>
so we know that x times 1=x
therefor
x times (less than 1)<x
0.999 is less than 1
0.999<1
therefor
14 times 0.999<14
blank is <
Answer:
x=28
Step-by-step explanation:
1/2x - 3 = 11
Add 3 on both sides
1/2x = 14
Multiply 2 on both sides x=28