Answer:

Step-by-step explanation:

To simplify this expression, first use the distributive property to distribute
.

Simplify.

Combine like terms,
and
.

The simplification of
is
.
I hope this helps ^^
Good luck
Answer:
124°
Step-by-step explanation:
cos X = (11²+7²-16²)/2(11)(7)
= (121+49-256)/154
= -86/154
= -0.5584
X = cos~¹ -0.5584 = 124°
Both the x and y have to be greater than zero so you need to add two inequalities, x>0, y>0
The Traingle XYZ and ACB are similar triangles. tanX = tanA = 5 over 2 and 5 tenths,
AC = 2 * XY; CB = 2 * YZ
<h3>What is an equation?</h3>
An equation is an expression that shows the relationship between two or more variables and numbers.
Triangle XYZ was dilated by a scale factor of 2 to create triangle ACB, hence XYZ and ACB are similar triangles.
Angles Y and C both measure 90 degrees, and angles A and X are congruent. Hence:
tanX = tanA = 5 over 2 and 5 tenths
AC = 2 * XY; CB = 2 * YZ
Find out more on equations at:
brainly.com/question/2972832
#SPJ1
Fgemgwgeafkeqjdajsfjfsmgdmdgmsgm