Seira has 11.5 yards of yarn. She uses a certain amount for a project, leaving 5.25 yards of yarn. The equation (11.5-x=5.25) represents this situation, where x is the amount of yarn Siera used for her project. How mug yarn did Sierra use for her project?

6.25 yards of yarn were used

Step-by-step explanation:

11.5 yards of yarn - 5.25 yards of yarn remaining = 6.25 yards of yarn that was used in the project.

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.