Answer:
sin75º=sin(30)º+45º)
=sin 30 cos 45+cos 30 sin 45
=1/2*√2/2+√3/2*√2/2
=√2/4+√6/4
=(√2+√6)/4
Check with calculator:
sin 75º≈0.9659
exact value=(√2+√6)/4≈0.9659
Answer:
$142.86
Step-by-step explanation:
Let the bonus be x
This implies that
Multiplying through by the L. C. M(that is 12)
Dividing through by 7
Hence her monthly bonus was $142.86
Volume = 105in³
Mass = 871.5g
To find the volume of the metal we can find the area of a base, and multiply it by the prism's width.
The base is 30cm in area, and the width is 3.5cm, which makes the volume 105in³
The mass of the doorstop can be found by just multiplying the grams per cubic centimeter by the volume, which would be 871.5g
Answer:
The answer to your question is: Salt
Step-by-step explanation:
Element: is a substance that cannot be converted into another substance.
Compound: is a substance that is formed by 2 or more elements.
Mixture: is a substance composed by 2 or more compounds.
Iron it is an element
Salt it is a compound
River sediment it is a mixture
Ocean water it is a mixture
