If h(x)=6-x, what is the value of (h•h) (10)?

Mathematics

1 answer:

butalik [34]3 years ago

8 0

Answer:

Step-by-step explanation:

h(x) = 6 - x

h.h = (6 - x)²

h.h = x² - 12x + 36

h.h(10) = 10² - 12(10) + 36 = 16

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John took all his money from his savings account. He spent $110 on a radio and 4/11 of what was left on presents for his friend

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Answer:

$1210

Step-by-step explanation:

Let x be total amount

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$420=\frac{3}{5}\left(\frac{7}{11}x-70\right)\\\Rightarrow \left(\frac{7}{11}x-70\right)=\frac{2100}{3}\\\Rightarrow \frac{7}{11}x-70=700\\\Rightarrow \frac{7}{11}x=770\\\Rightarrow x=1210$