Free Points?
I Don't Under Stand The Image Above
Answer: This question will probable get deleted because some AshHole is gonna report it (I know from experience), but I still am gonna do this because who doesn't like free points!!!
Solve the given equation for z :
2iz - 5 + i = i - (z - 2i )
2iz - 5 = 2i - z
(2i + 1) z = 2i + 5
z = (2i + 5)/(2i + 1)
z = (2i + 5)/(2i + 1) × (2i - 1)/(2i - 1)
z = (4i ² + 10i - 2i - 5) / (4i ² - 1)
z = (8i - 9)/(-5)
z = 9/5 - 8/5 i
Then
w = z - 1 + i = 4/5 - 3/5 i
Answer:
No
Step-by-step explanation:
18-6=12
-18+6=-12
It is the opposite because rather than subtracting from a positive, you're adding to a negative.
Hope this helps :)
3.Which type of variables are usually on the x-axis and represent input?
4.Which type of slope is represented on a graph as a horizontal line?
5.Find the slope of 2x + 4y = 12
(and the pic is a different question)
And for the very last pic there is a passage to go with it so here it is!
10. A study was done to investigate the use of text messaging over time. The table shows the relationship between the number of years after 2005 and the number of text messages an average person sent monthly.
Step-by-step explanation:
a, b, c are real number
Then,
Always True statements are -
Answer:
ABC are real numbers
Step-by-step explanation:
AB = GI
BC = HI
DE = HI
m∠B = m∠D = m∠I
Which triangles must be congruent?
ΔABC and ΔDEF only
ΔGHI and ΔABC only
none of the triangles
ΔABC, ΔDEF, and ΔGHI
Answer: ΔABC, ΔDEF, and ΔGHI
Step-by-step explanation:
Given: In ΔABC, ΔDEF, and ΔGHI:
AB = DF AB = GI
BC = HI DE = HI
m∠B = m∠D = m∠I
In ΔABC and ΔGHI
AB = GI [given]
BC = HI [given]
m∠B = m∠I [given]
[ here m∠B and m∠I are the included angle of ΔABC and ΔGHI]
∴ ΔABC ≅ ΔGHI [by SAS congruence postulate]
In ΔABC and ΔDEF
AB = DF [given]
BC = DE [ Since BC = HI and DE = HI so by transitive property BC = DE]
m∠B = m∠D [given]
[ here m∠B and m∠D are the included angle of ΔABC and ΔDEF]
∴ ΔABC ≅ ΔDEF [by SAS congruence postulate]
Now, since ΔABC ≅ ΔGHI and ΔABC ≅ ΔDEF
⇒ ΔGHI ≅ ΔDEF [transitive property]
Hence, all the given triangles ΔABC, ΔDEF, and ΔGHI are con gruent to each other.