jaleewoodyard1
09.01.2020 •
Mathematics
What's the value of 6x to the second power +4x+8, when x=7
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Ответ:
6(49)+28+8=y
294+28+8=y
330=y
Ответ:
6(7^2) +4(7)+8
6(49)+28+8
294+28+8
294+36
330
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Ответ:
Kyle invested 5,800 at 10% and 5,400 at 7%.
Step-by-step explanation:
Let x be the amount Kyle invests in the 10% account.
0.1x + 0.07(11200 - x) = 958
0.1x + 784 - 0.07x = 958
0.03x = 174
x = 5800