Right triangle XYZ has a right angle at vertex Y and a hypotenuse that measures 24cm. Angle ZXY measures 70.
1 answer:
Draw (see attachment)
so we can see we might want to find YZ or XY
sin(70°)=opositeside/hypotnuse=YZ/24
cos(70°)=adjacentside/hypotonuse=XY/24
alrighty
sin(70°)=YZ/24
cos(70°)=XY/24
to solve for each side, multiply both sides of both by 24
24sin(70°)=YZ
24cos(70°)=XY
use your calculator
YZ≈22.5526 cm
XY≈8.20848 cm
so we can see we might want to find YZ or XY
sin(70°)=opositeside/hypotnuse=YZ/24
cos(70°)=adjacentside/hypotonuse=XY/24
alrighty
sin(70°)=YZ/24
cos(70°)=XY/24
to solve for each side, multiply both sides of both by 24
24sin(70°)=YZ
24cos(70°)=XY
use your calculator
YZ≈22.5526 cm
XY≈8.20848 cm
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Answer:
Option d - Equality
Step-by-step explanation:
To find : What sign of a null hypothesis must always include?
Solution :
The Null hypothesis is defined as a statement about the population that either is believed to be true or is used to put forth an argument unless it can be shown to be incorrect beyond a reasonable doubt.
The Null hypothesis represent by
always has a symbol with an equal in it.
Therefore, Option d is correct.
Equality sign of a null hypothesis must always include.
Answer:
Step-by-step explanation:
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