1.  Indica el número de cifras significativas que poseen los siguientes números y explica debidamente las reglas aplicadas:             a. 0037900,25    b. 23,909000                                   c. 000,0009200100    d. 39,00×10-4

2. Especifica los siguientes números:   a. A  3 cifras significativas: 489,50065

                                                                    b . A una (1) cifra significativa: 78345,65

                                                                    c . A dos (2) cifras decimales: 5,697200

3. Escribe los siguientes números, primero a notación científica y luego determina sus cifras significativas:

               a. 672,000        b. 4003,007        c. 0902,0        d. 0,2030

ayudenme plis. ​

The level of co2 emissions, f(x), in metric tons, from the town of fairfax x years after they started recording is shown in the table below. x 2 4 6 8 10 f(x) 26,460 29,172.15 32,162.29 35,458.93 39,093.47 select the true statement.

What is the ratio of the length of an object in yards to the length of the same object in miles?

In δabc shown below, ∠bac is congruent to ∠bca: triangle abc, where angles a and c are congruent given: base ∠bac and ∠acb are congruent. prove: δabc is an isosceles triangle. when completed (fill in the blanks), the following paragraph proves that line segment ab is congruent to line segment bc making δabc an isosceles triangle. (4 points) construct a perpendicular bisector from point b to line segment ac . label the point of intersection between this perpendicular bisector and line segment ac as point d: m∠bda and m∠bdc is 90° by the definition of a perpendicular bisector. ∠bda is congruent to ∠bdc by the definition of congruent angles. line segment ad is congruent to line segment dc by by the definition of a perpendicular bisector. δbad is congruent to δbcd by the line segment ab is congruent to line segment bc because consequently, δabc is isosceles by definition of an isosceles triangle. 1. corresponding parts of congruent triangles are congruent (cpctc) 2. the definition of a perpendicular bisector 1. the definition of a perpendicular bisector 2. the definition of congruent angles 1. the definition of congruent angles 2. the definition of a perpendicular bisector 1. angle-side-angle (asa) postulate 2. corresponding parts of congruent triangles are congruent (cpctc)