Answer:
C. 44 cm, 30cm, and 16 cm
Step-by-step explanation:
Sana nakatulong
Answer:
The probability mass function of random variable X which represents the number of blue marbles drawn in 2 draws with replacement.
X | P(X)
0 | 0.390625
1 | 0.46875
2 | 0.140625
The probability of drawing exactly one blue marble = 0.46875
0.46875 as a simplified fraction is ------ 15/32
Step-by-step explanation:
A=5i+2j
B=2i-3j
C=-8i+3j
we find the vectors of AB, BC & AC:
AB=(2-5)i+(-3-2)j=-3i-5j
BC=(-8-2)i+(3-(-3))j=-10i+6j
AC=(-8-5)i+(3-2)j=-13i+j
now if the dot product of two of these vectors result in zero, it means that those vectors (representing the triangle sides) are perpendicular to each other (which means triangle ABC is a right-angled triangle)
let's try:
AB.BC=(-3)(-10)+(-5)(6)=30-30=0
thus the triangle ABC is a right-angled triangle.
<span>http://www.dictionary.com/browse/similar
This should help</span>