Answer:
Step-by-step explanation:
This is a linear function with y-intercept (0, 8) and slope 2.5.
Answer:
the third one 10 cm, 9cm 9cm
Answer:
The solution is (-2,4)
Step-by-step explanation:
We'll solve the system
2x+5y=16
-5x-2y=2
using elimination by addition and subtraction.
Let's eliminate x first. To do this, multiply the first equation by 5 and multiply the second equation by 2. We get:
10x + 25y = 80
-10x - 4y = 4
----------------------
21y = 84. Thus, y = 84/21 = 4.
Subbing 4 for y in the second equation, we get
-5x -2(4) = 2, or
-8 - 2 = 5x, or
-10 = 5x. Thus, x = -10/5 = -2.
The solution is (-2,4)
Answer:
The last one
Step-by-step explanation:
in the second part, x2 could to pull out as x
I'll solve problem 3 (I think it's what you're asking)
All the ones you answered on problem 3 are correct.
I'll solve the rest
c) KM = 26
The diagonals of a rectangle are congruent.
If the measure of one diagonal is 26 (which is 13 + 13), the other one is 26.
d) m∠KLM = 90
It's a rectangle! It's supposed to have 4 corners with right angles.
∠KLM is a corner of the rectangle
f) m∠LJM = 22
Subtract 68 from 90 since you know ∠LJK = 68
90 - 68 = 22
Question 1, 2, and 4 is a bit hard to see.
Have an awesome day! :)
