Answer:
c
Step-by-step explanation:
Answer:
35.26°
Step-by-step explanation:
If a cube has side length x
diagonal of the face = x×√2
The diagonal of the cube = x × √3
the angle between them is an acute angle in a right triangle,
opposite = x , adjacent = x×√2 , hyp. = x×√3
sin(angle) = x / ( x×√3
)
angle = sin^(-1) ( 1/√3) = 35.26
Answer:
3.9 pints
Step-by-step explanation:
Given:
Caroline uses 6.5 pints of blue paint and white paint to paint her bedroom walls.
2/5 of this amount is blue paint, and the rest is white paint.
To find :
How many pints of white paint did she use to paint her bedroom walls?
Solution:
Caroline uses pints of blue paint and white paint = 6.5
Amount of blue paint out of 6.5 pint = ![\frac{2}{5} of 6.5 = \frac{2}{5}\times6.5](https://tex.z-dn.net/?f=%5Cfrac%7B2%7D%7B5%7D%20of%206.5%20%3D%20%5Cfrac%7B2%7D%7B5%7D%5Ctimes6.5)
= ![\frac{13}{5} = 2.6](https://tex.z-dn.net/?f=%5Cfrac%7B13%7D%7B5%7D%20%20%3D%202.6)
Amount of blue paint = 6.5 - 2.6 = 3.9 pints
Therefore, 3.9 pints of white paint she used to paint her bedroom walls.
Answer is second choice (b)
when a pair of parallel lines are intersected by a third line, the alternate interior angles are congruent