Next Pretest: Equations and Inequalities
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2.
Select the correct answer from each drop-down menu.
Rewrite the formula for area of a circle to find the radius of a circle.
V. If
The area of a circle (A) is given by the formula A = 772 where ris the circle's radius. The formula to find ris
A = 54 centimeters and T = - 2 ris
v centimeters.
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Mary used 1/7 of a spool of ribbon to complete 4 projects. she used the same amount of ribbon on each project. how much ribbon did she use on each project?

Kayla wants to find the width, ab, of a river. she walks along the edge of the river 65 ft and marks point c. then she walks 25 ft further and marks point d. she turns 90° and walks until her location, point a, and point c are collinear. she marks point e at this location, as shown. (a) can kayla conclude that δ and δ are similar? why or why not? (b) suppose de = 15 ft. what can kayla conclude about the width of the river?

3x + 4y = 5 x- 3y = -7 solve by substitution