Hello :
the terme general is : an = a1 +(n-1)d
a11 = a1+(11-1)×5
a11 = -12+50
a11 = 38
<span>the sum of the first 11 terms is : S11 = (11/2)(a1+a11)
</span>S11 = (11/2)(-12+38)
S11 = 143
Answer: 4
Step-by-step explanation:
Similar triangles that have a scale ratio other than 1 are not congruent triangles.
The true statement about the proportions of the sides is 
The scale ratio is given as: 5 : 2
And the corresponding sides are given as:
- AB and DE.
- BC and EF.
- CA and FD.
The above highlights mean that,

Hence, the true statement is 
Read more about similar triangles at:
brainly.com/question/14285697
Answer:
You do (Keep, Change, Flip)
so you keep 9/4
Then change the division sign to multiplication sign
Finally flip the next fraction (10/3) becomes 3/10
9/4 * 3/10 = (9*3)/(4*10) = 27/40
Answer:
Part A)
x+y=80
y=x+20
B)
30 minutes
C)
no
If Pam was to spend 60 minutes practicing dance, then she would only get 20 minutes of math. 60-20=40. She would be practicing dance 40 minutes more than math, not just 20.