10. Evaluate: 3 27 + 9 729 .
a. 2
b. 4
c. 6
d. 8
11. Find the exact value of 4 64 + 3 9 − 25 625 .
a. 3
b. 4
c. 5
d. 6
12. What is the value of 3 8 512 ?
a. 7
b. 8
c. 9
d. 10
13. What is the magnitude in the Richter scale of an earthquake that released
1014
joules of energy?
a. 3.6
b. 5.1
c. 6.4
d. 7.2
14. The decibel level of sound in a certain forest is 10-7 watts/m2. What is the
corresponding sound intensity in decibels?
a. 4
b. 5
c. 6
d. 7
15. A solution contains hydrogen ion concentration of 1 x 10-11 moles per liter.
Calculate its pH value.
a. 11
b. 10
c. 9
d. 8
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Answer:
10.d 8
11.a 3
12. b 8
13.b 5.1
Step-by-step explanation:
Step-by-step explanation:
a. 2
b. 4
c. 6
d. 8
11. Find the exact value of 4 64 + 3 9 − 25 625 .
a. 3
b. 4
c. 5
d. 6
12. What is the value of 3 8 512 ?
a. 7
b. 8
c. 9
d. 10
13. What is the magnitude in the Richter scale of an earthquake that released
1014
joules of energy?
a. 3.6
b. 5.1
c. 6.4
d. 7.2
14. The decibel level of sound in a certain forest is 10-7 watts/m2. What is the
corresponding sound intensity in decibels?
a. 4
b. 5
c. 6
d. 7
15. A solution contains hydrogen ion concentration of 1 x 10-11 moles per liter.
Calculate its pH value.
a. 11
b. 10
c. 9
d.