4.5 Negative Exponents and Reciprocals. Construct Understanding.
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4.5 Negative Exponents and Reciprocals
Construct Understanding
What is a RECIPROCAL?
Two numbers with a product of 1 are reciprocals.
4 = ∙ 1 ∙ = 1
• ==
Without a calculator, Calculate
Reciprocals!!
• = 1
Without a calculator, Calculate
Reciprocals!!= =
= =
= =
Evaluate each power without using a calculator (a and b only)
= =
POWERPOINT PRACTICE PROBLEMEvaluate each power without using a
calculator (a and b only)
Evaluate each power without using a calculator
= =
= =
= =
Evaluate each power without using a calculator
POWERPOINT PRACTICE PROBLEMEvaluate each power without using a
calculator
Paleontologists use measurements from fossilized
dinosaur tracks and the formula v = 0.155to estimate the speed at which the dinosaur travelled. In the formula, v is the speed in metres per second, s is the distance between successive footprints of the same foot, and f is the foot length in metres.
Use the measurements in the diagram to estimate the speed of the dinosaur.
Paleontologists use measurements from fossilized
dinosaur tracks and the formula v = 0.155to estimate the speed at which the dinosaur travelled. In the formula, v is the speed in metres per second, s is the distance between successive footprints of the same foot, and f is the foot length in metres.
Use the measurements in the diagram to estimate the speed of the dinosaur.
The dinosaur travelled at approximately 0.8 m/s.
Use the formula v = 0.155to estimate the speed at which the dinosaur travelled when s =
1.5 and f = 0.3.
The dinosaur travelled at approximately 1.2 m/s.
Section 4.5 HOMEWORK
OPAGES: 233 – 234OPROBLEMS: 3 – 19
QUIZOSections 4.4 – 4.5
OMonday, July 28
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