Provide mssing statements and missing reasons for the proof of the theorem,“Corresponding altitudes of congruent triangles are congruent.”Given: 
; 
and 
Prove: 
S1. 
R1.S2. 
and 
R2.S3. R3. GivenS4. 
and 
are rt. 
R4.S5. R5. All right angles are congruent.S6. 
R6.S7. R7.
What will be an ideal response?
R2. CPCTC
S3. 
and 
R4. Perpendicular lines form right angles.
S5. 
R6. AAS
S7. 
R7. CPCTC
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Determine whether a linear or quadratic function would be a more appropriate model for the graphed data. If linear, tell whether the slope should be positive or negative. If quadratic, decide whether the coefficient 
of x2 should be positive or negative. DENTAL FLOSS USE 
Years since 1990
A. Linear; positive B. Quadratic; negative C. Linear; negative D. Quadratic; positive
Rewrite the given expression using an appropriate variable. Use the first letter of the given word as the variable.99 - (Years)
A. Y ÷ 99 B. 99 ? Y C. 99 - Y D. 99 + Y
Solve the equation.5n = 15
A. n = 5 B. n = 15 C. n = 10 D. n = 3
Solve.Given log102 = 0.3010 and log103 = 0.4771, evaluate log10 6.
A. 0.7781 B. 0.1436 C. 0.9030 D. 0.9542