Answer:
d
Step-by-step explanation:
given that your slop is -4/3, plug the (x,y) point in to the equation of y = -4x/3 +b
-1 = -4 + b , b = 3
y = -4x/3 + 3
Answer:
1 : 80
Step-by-step explanation:
So you want to check Length of model : Length of real boat
50 cm : 40 m
But since the units don't match, make 40 m into 4000 cm
50 cm : 4000 cm
Divide both sides by 50 and you get
1 : 80
ANSWER
EXPLANATION
The given expression is
We factor to get,
This implies that,
We factor further to obtain,
or
There are 10 digits possible for each of the 4 places .
So the number of digits possible is 10^4 = 10,000
Answer:
It is an acute triangle.
Step-by-step explanation:
It would be much easier for you to see where I'm getting at if you draw a diagram.
Assume this triangle is labelled ABC where a = 14, b = 21, and c = 16.
cos A = (16^2 + 21^2 - 14^2)/(2(16)(21))
∠A = cos^-1(0.82291...)
∠A ≅ 34.6°
cos B = 16^2 + 14^2 - 21^2)/(2(16)(14))
∠B = cos^-1(0.024...)
∠B ≅ 56.8°
∠C = 180 - (∠A + ∠B)
∠C ≅ 56.8°
Since there is no right-angle nor is there an obtuse angle,
Therefore the triangle is an acute triangle.
