Laurie is trying to stay within 10 feet of her current diving depth of –30 feet (with regard to sea level) so that the light is still good but she can be close to the sea life during her scuba dive. which two equations can be used to find the minimum and maximum depths laurie wants to stay between?

a. x + 30 = 10 and x + 30 = –10
b. x – 30 = 10 and x – 30 = –10
c. x + 10 = 30 and x + 10 = –30
d. x – 10 = 30 and x – 10 = –30

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.