allisonboggs85
28.08.2019 •
Mathematics
Check these answers include explanations whenever possible and evaluate each answer & the work. if i get something wrong, give an explanation for it and the correct answer. (questions in attachment)
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Ответ:
a2+b2=c2
b2=19^2-7^2
b=17.664
The second one is 108
Volume of a prism=base area x length
=(1/2 x12.6x1.6) x 10.75
=108.36mm3
Ответ:
2x+9
Step-by-step explanation:
If you times x by 2, you get 2x. 2x and '+9' aren't like terms so you have to separate them. You will end up with 2x+9