Mathematics, 04.07.2019 13:40 justinhk10
Consider the diagram and the paragraph proof below. given: right △abc as shown where cd is an altitude of the triangle prove: a2 + b2 = c2 because △abc and △cbd both have a right angle, and the same angle b is in both triangles, the triangles must be similar by aa. likewise, △abc and △acd both have a right angle, and the same angle a is in both triangles, so they also must be similar by aa. the proportions and are true because they are ratios of corresponding parts of similar triangles. the two proportions can be rewritten as a2 = cf and b2 = ce. adding b2 to both sides of first equation, a2 = cf, results in the equation a2 + b2 = cf + b2. because b2 and ce are equal, ce can be substituted into the right side of the equation for b2, resulting in the equation a2 + b2 = cf + ce. applying the converse of the distributive property results in the equation a2 + b2 = c(f + e). which is the last sentence of the proof? a. because f + e = 1, a2 + b2 = c2. b. because f + e = c, a2 + b2 = c2. c. because a2 + b2 = c2, f + e = c. d. because a2 + b2 = c2, f + e = 1.
Answers: 1
Mathematics, 21.06.2019 23:50, dbag1162
The federal reserve controls certain interest rates in the united states. investors often try to speculate as to whether the federal reserve will raise or lower rates and by how much. suppose a company conducts extensive interviews with financial analysts, and as a result, predicts that "thefed" will increase rates by an average of 0.25 percentage points every six months for the forseeable future. which type of equation could be used to model the predicted interest rates over the next several years, assuming no other significant changes? a) a linear equation b) a quadratic equation c) a polynomial equation d) an exponential equation
Answers: 3
Mathematics, 22.06.2019 03:00, Suhayb981
Plzz ! if you were constructing a triangular frame, and you had wood in the length of 4 inches, 4 inches, and 7 inches, would it make a triangle? would you be able to create a frame from these pieces of wood? yes or no? = explain your mathematical thinking/show your work:
Answers: 1
Mathematics, 22.06.2019 04:00, icantspeakengles
The school board administered a math test to all students in grade 66 at high achievers charter school and determined that 15\%15% of them were below grade level in math. based on this data, which of the following conclusions are valid? choose 1 choose 1
Answers: 2
Consider the diagram and the paragraph proof below. given: right △abc as shown where cd is an altit...
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