1. En el Area de carpintería se elabora un proyecto de 12 puertas. En cada puerta, se usa 1 litro de preservante para proteger las maderas de la polilla; también usa 1 litro de barniz para el acabado. El litro de barniz le cuesta S/.32,80, y el litro de preservantes, S/.16,70. ¿Cuánto dinero invierte en estos materiales para las 12 puertas?

c. 27 units.

step-by-step explanation:

we are told that in circle a, ∠bae ≅ ∠dae.

we can see from our given diagram that in and ;

, as these are radii of our given circle.

therefore, by sas congruence postulate.

hence, side be will be equal to side de as corresponding parts of congruent triangles are congruent. so we can set an equation to find the value of x as:

now let us substitute x=17 in the expression for the length of be.

therefore, length of be will be 27 units and option c is the correct choice.

answer: y = -2.5x - 15

              (-6,0)

step-by-step explanation:

7

step-by-step explanation:

explanation:

remove parenthesis:

=

apply rule

=

multiply fractions:

=

=

divide:

=

mordancy.