Answer:
4
Step-by-step explanation:
thx for the points lol
The value of x in the algebraic equation is: -5/2.
<h3>How do you Find the Value of a Variable in an Algebraic Equation?</h3>
Given an algebraic equation, to find the unknown value of x, solve by isolating x in the equation.
Given:
4x + 26 = 16
Subtract 26 from both sides
4x = 16 - 26
4x = -10
Divide both sides by 4
x = -10/4
x = -5/2
Therefore, the value of x in the algebraic equation is: -5/2.
Learn more about algebraic equation on:
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5(6x+1)+3(7x+-5)
30x+5+21x+-15
51x+-10
The operation which you should do first in the Simplification of the expression -3(-5) - 16 is -3 times -5. option A
Simplification
Based on the principle of BODMAS
B = Bracket
O = of
D = Division
M = Multiplication
A = Addition
S = Subtraction
-3(-5) - 16
open parenthesis
= 15 - 16
= -1
Therefore, the operation which you should do first in the Simplification of the expression -3(-5) - 16 is -3 times -5. option A
Learn more about simplification:
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Answer:
Step-by-step explanation:
to find the surface area we need to find the followng areas:
- area of a triangle and multiply it by 4 (because there are 4 triangles)
And once we have those areas, we add them to find the surface area.
Area of the square:
the formula to find the area of a square is:
where 
is the length of the side: 
thus the area of the square is:
Area of the triangles:
the are of 1 triangle is given by
where 
is the base of the triangle: 
(the base of the triangle is the side of the square)
and 
is the height of the triangle: 
thus, the area of 1 triangle is:
the area of the 4 triangles is (we multiply by 4):
finally we add the area of the square and the area of the 4 triangles to find the total surface area:
