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drek231 [11]
3 years ago
8

If h(x)=3^x-7 find h(4) show all work

xFormula1" title="h(x) = {3}^{x} - 7" alt="h(x) = {3}^{x} - 7" align="absmiddle" class="latex-formula">
Mathematics
2 answers:
natta225 [31]3 years ago
8 0
H(x) = (3^x) - 7
h(4) = (3^4) - 7 ... replace every x with 4; then use PEMDAS to simplify
h(4) = 81 - 7 
h(4) = 74

Answer: 74

Side Note: 3^4 means we have four copies of '3' being multiplied together
3^4 = 3*3*3*3 = 9*9 = 81

Svetach [21]3 years ago
3 0
Just substitute 4 for x in the given equation:

h(4) = 3^4 - 7 = 81 - 7 = 74 (answer)
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