Answer:
3x
Step-by-step explanation:
Combine Like Terms:
=3x+5x+−5x
=(3x+5x+−5x)
=3x
Hope it helps :)
Answer:
sqrt(181)
Step-by-step explanation:
sqrt (9^2 + 10^2)
The density of the block of iron in
is equal to 7,880.
<u>Given the following data:</u>
- Volume of block = 0.4

To calculate the density of the block of iron in
:
<h3>What is density?</h3>
Density can be defined as mass all over the volume of an object or body. Thus, density is equal to mass per unit volume of an object.
<h3>How to calculate
density</h3>
Mathematically, the density of a substance is given by this formula;

Substituting the parameters into the formula, we have;

Density = 7,880 
Read more on density here: brainly.com/question/13833323
Answer:
x = 2
Step-by-step explanation:
Note that 25 = 5² , then
= 5²
Since the bases on both sides are 5 then equate the exponents
6 - 2x = 2 ( subtract 6 from both sides )
- 2x = - 4 ( divide both sides by - 2 )
x = 2
You have a rectangle and 2 triangles:
rectangle = 12 *6 = 72
larger triangle on left, find the base:
base = 6 / tan(45) = 6
area = 1/2 x b x h = 1/2 x 6 x 6 = 18
smaller triangle:
area = 1/2 x b x h
1/2 x 2 x 6 = 6
total area:
72 +6 +18 = 96 cm^2