Q 6.5-6.7 - I R I = to compare the intensity of her scream I to the threshold of hearing I 6 A treasure chest is said to be from the second century

Honors Algebra 2 Name ________________________ Quiz 6.5 – 6.7 Period _____ Date ______________ For problems 1 – 3, solve to the nearest hundredth. 1. 14 6 5 x - = 2. 2 2 3 96 x e + = 3. ( 29 ln 3 2ln 4 x + = 4. Find the pH of chicken eggs to the nearest tenth if the hydrogen ion concentration in moles per liter is about 8 1.6 10 . - × Use log . pH H +   = -   5. Mrs. Keeney set the world record for screaming when she reminded her students, “DON’T forget ± !” at a relative intensity, R , of 128 decibels. Use 0 10log

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Unformatted text preview: I R I = to compare the intensity of her scream, I , to the threshold of hearing, I . 6. A treasure chest is said to be from the second century B.C.E. Tests show that it contains 92% of its original carbon-14. Could it be that old? Use ( 29 .00012 t N t N e-= . 7. Tommy deposits $2000 into an account that earns 11.6% interest. Calculate the amounts that he would have after 10 years if interest is compounded quarterly and continuously....
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