Answer:
x + 2(2x-4) = 10
Step-by-step explanation:
Here in this question, we want to select which is the correct answer if we substitute for the value of y in the second equation, using the first.
In the first, we have;
y = 2x -4
Now, let’s input this value of y into the second equation.
By direct substitution, what we have is the following;
x + 2y = 10
—-> x + 2(2x -4) = 10
Answer:
3/6 + 1/3
Step-by-step explanation:
20/24 can be devided top and bottom by 4 which would equal 5/6, if you add 3/6 + 1/3 also equals 5/6.
Answer:
2,13×10^-3
213×1/10^3; express to positive product
213/10^3; calculate
213/1000; evaluate
=0.213
So the vertex, exactly between the focus and directrix, must be at <span>(h, k) = (1,
–2)</span><span>.</span>
Oooh, looks fun
ok
erm
we might want to know some properties


if

where a=a, then assume m=n

so



minus 17*2^x both sides

use u subsitution, u=2ˣ

solve

or

ac method
2 times 8=16
what 2 number multiply to get -17 and add to get 16
-16 and -1
2u²-1u-16u+8=0
(2u²-1u)+(-16u+8)=0
u(2u-1)+(-8)(2u-1)=0
(u-8)(2u-1)+0
u-8=0
u=8
2u-1=0
2u=1
u=1/2
now
u=2ˣ
8=2ˣ

3=x
and


-1=x
x=-1 and 3
neat problem