1. OK, we want csc A, which is 1/sin A. When we have a right triangle whose hypotenuse is the square root of two times the side, we're where the Pythagoreans were twenty five hundred years ago when they realized the diagonal of the unit square was incommensurate with the side.
In other words we have an isoceles right triangle, 45 degree angles,
and
. So
so
fourth choice.
2. AC adjacent to 23, C is a right angle because 23+67=90. We have hypotenuse AB, so
, choice four.
3. The cosine is adjacent over hypotenuse.
The sine is opposite over hypotenuse,
First choice
Answer:
yes you are right it would be 75%
Step-by-step explanation:
Answer:What is the value of the expression
What is the value of the expression
Alco
What is the value of the expression
Alco
Step-by-step explanation:What is the value of the expression
Alco
What is the value of the expression
What is the value of the expression
Alco
Answer:
4%
Step-by-step explanation:
Volume of sphere
v = (4/3)πr^3
Volume moon/ volume planet
We don't actually need the numeric value of the radius
just the 35% ratio
Radius of moon = .35 radius of planet
Vm/ Vp = (4/3)π(.35r)^3 / (4/3)π(r)^3
Cancel like terms
Vm / Vp = .35^3
Vm / Vp = 0.042875
Expressed as a percentage
Vm / Vp = 4.2875%
Rounded
Vm / Vp = 4%
Answer:
x=i√33−3,−i√33−3
hope this helps :)
Step-by-step explanation:
Subtract 5 from both sides of the equation.
(x+3)2=−28−
5 Subtract 5 from −28.
(x+3)2=−33
Take the square root of both sides of the equation to eliminate the exponent on the left side.
x+3=±√−33
Simplify the right side of the equation.
x+3=±i√33
The complete solution is the result of both the positive and negative portions of the solution.
x=i√33−3,− i√33 −3
