Answer:
x=18
Step-by-step explanation:
all the interior angles in a pentagon = 540. use to interior angle theorem. then just add all the angles up and make them = to 540 like this: 540=95+90+(7x-4)+(3x+23)+(9x-6). then solve using algebra
Given:
Total Yogurt =
cups
Yogurt required for each smoothie =
cup
To find:
The number of smoothies that Paisley can make with the yogurt.
Solution:
We know that,

Substituting the given values, we get






Therefore, the number of smoothies is 12.
Answer: 
Explanation:
The equation is:

The term on the left consists of a product of two different factors: therefore, this product can be zero if either the first term (2x-5) or the second term (3x-1) is equal to zero.
This means that we can solve separately for the two terms:

Solving the first equation:

Solving the second equation:

If sin x = 12/37, we have to find cos x.
The identity:
sin² x + cos² x = 1
( 12/37)² + cos² x = 1
144 / 1369 + cos² x = 1
cos² x = 1 - 144/1369
cos² x = 1369/1369 - 144/1369
cos² x = 1225 / 1369
cos x = +/- √ 1225/1369 = +/- 35/37
Answer:
A ) cos ? = +/- 35 over 37
Using I forgot who's thingummy math thing
change sign thing
ah, descartes rule of signs, thank you google
replace x with -x
simplify
count the number of times the sign changes between terms
if the number is 2 or more, keep subtracting 2 until you reach 0 or 1
so
if we replace x with -x we get
-x^5+2x^3+7x^2-2x-2
(-), (+), (+), (-), (-)
2 changes
2-2=0
so 2 or 0 possible negative real roots