Don't worry, I had a bunch of trouble with this, too.
<span>y = x + 4
y = −2x − 2
Basically, you substitute y for x+4.
Real quick, you know how if you have a problem like, [ y = 3x + 5 ], you're told that x = 2, then solve for y? Substatute basically means replace. So when you're replacing x with 2, your substituting x for 2. The problem you've shown is just a little more complicated.
So you start with this problem:
</span>y = x + 4
y = −2x − 2
Then you replace one y with what the other one is equaled to.
So you end up with something like this:
x + 4 = −2x − 2
Then just solve :)
3x = -6
x = -2
I hope this helps! :D Feel free to ask any questions.
And please, only if you think I deserve it, it would help a bunch if you marked this answer as branliest!
Answer:
0.9608
Step-by-step explanation:
P = 56%
56% = 0.56
1-p
1-0.56
= 0.44
√p(1-p/n
= √0.56(1-0.56)/886
= √0.0002781
= 0.01667
= 0.017
0.59-0.56/0.017
= 1.76
P(z <1.76)
When we check the z table,
Probability is equal to 0.9608
First subtract 3 to both sides to isolate x
2-21-3 = -x
Now calculate what is 2-21-3.
-19-3 = -x
-22 = -x
Now divide both sides to -1 to get x positive.
-22 / -1 = -x / -1
22 = x
So x is equal to 22.
If it is right brainiest please.
Use order of operations from left to right
• and / first
+ and - second
[6•2/(-14)]. +(9•2)=
(12/-14)+18=
(-6/7)+ 18•7/7=
(-6+126)/7=
120/7
