Answer:
4) 91.75
Step-by-step explanation:
7x+20+9x-4=180
16x=164
x=10.25
7(10.25)+20=
71.75+20=91.75
vẽ tam giác ABC biết BC=3cm góc A=35 độ góc B=65 độ
Answer:
Here we have:
p(m) = 2m^2 - 4m + 3
And we want to find p(13)
This means that we just need to replace all the m's by the number 13 in the equation, so we get:
p(13) = 2*(m = 13)^2 - 4*(m = 13) + 3
p(13) = 2*(13)^2 - 4*13 + 3
= 338 - 52 + 3 = 289
You can see that none of the options matches this, so maybe the equation or some other part of the question is written incorrectly, but here you have at least the general way of solving these type of problems.
