Step-by-step explanation:
I think you did not copy the correct information of your answer options here.
because, as you wrote the 4 options, none of them are correct.
remember, the area of a triangle is base times height divided by 2
A = (b × h) / 2
given the numbers in the problem statement
b = 5, h = 8
A = (5 × 8) / 2 = 40 / 2 = 20
you need to pick the answer option in your original document that would lead to 20.
none of the 4 options you gave me here would result in 20. so, there must be something wrong with them.
Answer:
t = 130s
Step-by-step explanation:





If the speed signal sent was actually less, meaning that it would take more time to signal arrives from Earth to Mars. The lower the speed, the higher the time.
Answer: The length of LK is 40.
Step-by-step explanation:
LK = 6x+10
KM = 2x+8
LM = 58
so
LM = LK + KM
or, 58 = 6x+10+2x+8
or, 58 = 8x + 18
or, 58-18 = 8x
or, 8x = 40
so, x = 5
now
LK = 6x + 10
= 6*5+10
= 30 +10
= 40
we need a picture so we can help you