Which expressions are equivalent to 35+30s-45t35+30s−45t35, plus, 30, s, minus, 45, t?

The correct option is B. and C. .

Step-by-step explanation:

Consider the provided expression.

Option (A):

Open parenthesis.

Which is not equal to the provided expression.

Option (B)

Open parenthesis.

35+30s-45t

Which is equal to the provided expression.

Option (C)

Open parenthesis.

Which is equal to the provided expression.

Option (D) 

Which is not equal to the provided expression.

Option (E)

Open parenthesis.

Which is not equal to the provided expression.

Hence, the correct option is B. and C. .

pentagon

step-by-step explanation:

the coordinates   a(5, -2), b(3,-1),c(-4,-4) d(-3,8) and e(-1,4) forms the vertices of the polygon when they are connected in order.

in order to classify that which polygon is it with the given coordinates, first count the number of vertices and then count the number of sides it can make with these vertices.

since, the given coordinates have five vertices, therefore, it will make five sides. moreover, pentagon is regular in nature therefore it will be convex.

now, a polygon with five sides is known as pentagon, therefore, the given polygon is the pentagon.

the answer is 24

step-by-step explanation: