Mathematics, 18.11.2019 09:31 Savageboyn
Galena is solving the following system. 3x+2y+3z =5 7x+y +7z=-1 4x-4y-z=-3
step 1 she multiplies equation (3) by 3 and adds it to equation (1)
step 2 she multiplies equation (3) by -7 and adds it to equation (2)
which statement explains galena’s mistake?
1 she adds equation 1 instead of equation 2 in step 1
2 she does not multiply equation 3 in step 1 by the correct value
3 she did not multiply equation 3 in step 2 by the correct value
4 she added equation 2 instead of equation 1 in step 2
Answers: 3
Mathematics, 21.06.2019 17:30
Which of the following is true about the graph of f(x)=7^x. select all that apply. a= it intercepts the x axis b=it intercepts both axis c=it intercepts neither d=it intercepts the y axis
Answers: 1
Mathematics, 21.06.2019 20:30
25) 56(1) = 5b a. identity property of addition b. identity property of multiplication c. commutative property of multiplication d. commutative property of addition
Answers: 1
Mathematics, 21.06.2019 20:30
Ametal rod is 2/5 meters long. it will be cut into pieces that are each 1/30 meters long. how many pieces will be made from the rod?
Answers: 1
Galena is solving the following system. 3x+2y+3z =5 7x+y +7z=-1 4x-4y-z=-3
step 1 she multipl...
step 1 she multipl...
Mathematics, 09.03.2021 02:40
Mathematics, 09.03.2021 02:40
Biology, 09.03.2021 02:40
Mathematics, 09.03.2021 02:40
Mathematics, 09.03.2021 02:40
SAT, 09.03.2021 02:40
Mathematics, 09.03.2021 02:40
Mathematics, 09.03.2021 02:40
Mathematics, 09.03.2021 02:40
English, 09.03.2021 02:40
Mathematics, 09.03.2021 02:40
History, 09.03.2021 02:40
Biology, 09.03.2021 02:40
Computers and Technology, 09.03.2021 02:40