The simplified form of given expression is 
<em><u>Solution:</u></em>
Given that we have to simplify the expression
<em><u>Given expression is:</u></em>

We can simplify the expression by multiplying each term in first bracket with each term term in second bracket


Simplify the above expression by multiplying the numbers in each term and adding the coefficients of like variables in each term

Combine the like terms


Thus the expression is simplified
Answer:
17
Step-by-step explanation:
Pythagorean theory baby! Okay so the Pythagorean theory is a² + b² = c² so lets draw a triangle and label our sides. So we know 8² + 15² = c² so I'm going to find the square root of all of our numbers. We get 64 + 225 = c² so then add 64 + 225 = 289 then I take the square root of 289 which equals 17 . This answer also makes sense because out hypotenuse should always be bigger then the legs.
I'm pretty sure thats right, Hope this helps.
Answer:

Step-by-step explanation:
The figure consists of 2 rectangles.
<u>Rectangle 1 Area:</u>
Length = 5 cm
Width = 2 cm
Area = Length * Width
A = 5 * 2
A = 10 cm²
<u>Rectangle 2 Area:</u>
Length = 4 cm
Width = 2 cm
Area = 2 * 4
A = 8 cm²
<u>Area of the whole figure:</u>
= Rectangle 1 + Rectangle 2
= 10 + 8
= 18 cm²
![\rule[225]{225}{2}](https://tex.z-dn.net/?f=%5Crule%5B225%5D%7B225%7D%7B2%7D)
Hope this helped!
<h3>~AH1807</h3>
Answer:
7. Height = 21 in
8. Height = 13 cm or 130 mm
Step-by-step explanation:
7.
½ × 5 × height = 52.5
height = 21 in
8.
23 mm ÷ 10 = 2.3 cm
½ × 2.3 × height = 14.95
height = 13