Answer:

Step-by-step explanation:
Given: 
To find: angle to the nearest degree
Solution:
A triangle is a polygon that has three sides, three angles ,and three vertices.
Trigonometry explains the relationship between the sides and angles of the triangle.
The angle can be expressed in two forms: degrees or radians.

Answer:
x=4
Step-by-step explanation:
It's a parallel line so the equation is
100+19x+4=180
19x=180-100-4
19x=76
x=76/19
x=4
Answer:
okay so each cookie costs 1.15 and the equation is (2.80 divided by 7) + 0.75 = c
Step-by-step explanation:
Hope that helps:)
Answer:
5x+3
Step-by-step explanation:
Rewrite the expression to 20x^2-3x-9/4x-3
Factor 20x^2+12x-15x-9/4x-3
Factor 4x*5x+3-3(5x+3)/4x-3
Factor (5x+3)*(4x-3)/4x-3
Solution then becomes 5x+3 as stated above
![\cfrac{\sqrt{36}\cdot 3^2-\sqrt[3]{-64}}{2^2}\implies \cfrac{\sqrt{6^2}\cdot 3^2-\sqrt[3]{(-4)^3}}{2^2}\implies \cfrac{6\cdot 3^2-(-4)}{2^2} \\\\\\ \cfrac{6\cdot 9-(-4)}{4}\implies \cfrac{54-(-4)}{4}\implies \cfrac{54+4}{4}\implies \cfrac{58}{4}](https://tex.z-dn.net/?f=%5Ccfrac%7B%5Csqrt%7B36%7D%5Ccdot%203%5E2-%5Csqrt%5B3%5D%7B-64%7D%7D%7B2%5E2%7D%5Cimplies%20%5Ccfrac%7B%5Csqrt%7B6%5E2%7D%5Ccdot%203%5E2-%5Csqrt%5B3%5D%7B%28-4%29%5E3%7D%7D%7B2%5E2%7D%5Cimplies%20%5Ccfrac%7B6%5Ccdot%203%5E2-%28-4%29%7D%7B2%5E2%7D%20%5C%5C%5C%5C%5C%5C%20%5Ccfrac%7B6%5Ccdot%209-%28-4%29%7D%7B4%7D%5Cimplies%20%5Ccfrac%7B54-%28-4%29%7D%7B4%7D%5Cimplies%20%5Ccfrac%7B54%2B4%7D%7B4%7D%5Cimplies%20%5Ccfrac%7B58%7D%7B4%7D)
notice, PEMDAS
groups first, then Exponents, then Multiplication and Division from left-to-right, then Addition and Subtraction from left-to-right last.