shygrl05
22.08.2019 •
Mathematics
Jordan solved the equation −7x + 25 = 48; his work is shown below. identify the error and where it was made. −7x + 25 = 48 step 1: −7x + 25 − 25 = 48 − 25 step 2: −7x = 23 step 3: negative seven times x over seven = twenty-three over seven step 4: x = twenty-three over seven
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Ответ:
He should have divided by -7 to get rid of the negative sign as well in the -7.
Hope this helps :)
Ответ:
4 square units
Step-by-step explanation:
If you draw it out on a coordinate plane, DG is your height and it is 2 units. DE is one of your bases and it is 3 units. Lastly GF is one of your bases and it is 1 unit. Plug these 3 measurements into the trapezoid area formula, and voila you get 4 square units! Hope this helps :)