Square ABCD and square EFGH will reflect onto themselves across 8 lines of reflection
Y = mx + b
slope(m) = -3/4
(-2,5)...x = -2 and y = 5
now sub and find b, the y int
5 = -3/4(-2) + b
5 = 3/2 + b
5 - 3/2 = b
10/2 - 3/2 = b
7/2 = b
so ur equation is " y = -3/4x + 7/2....or 3x + 4y = 14
now it is just a matter of subbing in ur answer choices to see which ones work.
3x + 4y = 14...subbing in (6,-1)
3(6) + 4(-1) = 14
18 - 4 = 14
14 = 14 (correct).....so (6,-1) is a point on ur line <==
Step-by-step explanation:
Question 5 answer:-
5 tickets for 12.50 is $2.50 each
8 tickets for20.16 is $2.52 each.
so, 5 tickets for $12.50 is the better deal
Answer:
d
This is because 7+x+1=30 (this is the equation btw).
You combine the like terms so you get 30=8+2x (7+1 and x+x)
do the equation so you get:
30=8+2x
-8 -8
22=2x
divide both sides by 2
11=x
3.
A = pi x r^2
48 = 3.141... x r^2
÷ by value of pi
15.278... = r^2
Square root the ans, to get r
Thus, R = 3.908..... So, radius is 3.9
2.
Circumference = pi x diameter
87. = 3.141... x d
÷ by value of pi
27.692............. = diameter
Radius is twice the diameter. So, divide diameter by 2 to find the radius.
27.692.....÷ 2 = 13.846...
Thus, radius is 13.8cm
Hope this helps!