"The number 39 is equal to"
39=
"thirteen subtracted from an unknown number"
r-13
Putting it together you have:
39=r-13
Answer:
Step-by-step explanation:
For angle C,
cos(∠C) = 
= 0.97
sin(∠C) = 
= 0.26
tan(∠C) = 
= 0.27
Therefore, from the triangle ABC,
cos(∠A) = cos(90° - ∠C)
= sin(∠C)
= 0.26
sin(∠A) = sin(90 - ∠A)
= cos(∠A)
= 0.97
tan(∠A) = 
= 3.73
Angle 
A 0.26 0.97 3.73
Answer:
4 1/2 hours
Step-by-step explanation:
To find how long, multiply the length of time in hours by the number of cakes. 1 cake takes 3/4 of a an hour so 6 cakes will take
3/4 * 6 = 18/4 = 4 2/4
4 2/4 simplifies to 4 1/2 hours.
X² + 5x - 24 = 0
x² - 3x + 8x - 24 = 0
x(x-3) + 8(x-3) = 0
(x+8)(x-3) = 0
x+8 = 0 or x-3 = 0
x = -8 x = 3
Answer: x=-8, x=3
A mathematical equation is an expression containing at least one variable and an equals sign with a mathematical expression on each side of it.
