${ \sf{ \red{using \: pythagoras \: theorem}}} \\ \\ { \sf {(20)}^{2} - {(16)}^{2} = {x}^{2} } \\ \\ { \sf{400 - 256 = {x}^{2} }} \\ \\ { \sf{144 = {x}^{2} }}$

${ \sf{x = \sqrt{144} }} \\ \\ { \boxed{ \boxed{ \green{x = 12}}}}$

option (C)

8 0

3 years ago

Write the missing number that makes each equation true. Show your work. __ - 4 = 16 - 5

aivan3 [116]

it is 15 cuz 15-4=11 and ,16-5=11

6 0

3 years ago

Read 2 more answers

What do the following two equations represent? · Y-3 = 2(2-3) · y + 5 = 2(2 + 1)

solong [7]

Answer: A

Y-3 = 2(2-3) y=1

y−3=2(2−3)

Step 1: Simplify both sides of the equation.

y−3=2(2−3)

y+−3=−2

y−3=−2

Step 2: Add 3 to both sides.

y−3+3=−2+3

y=1

Step-by-step explanation: y + 5 = 2(2 + 1) y+5=2(2+1)

y=1

8 0

3 years ago