Answer:
-5/6
Step-by-step explanation:
Multiplying numerators and denominators to get the LCD in all fraction denominators
=−7×38×3−1×83×8+3×38×3
Then rewriting the equation with the equivalent fractions
=−2124−824+924
With like denominators we can operate on just the numerators
=−21−8+924
=−2024
Simplifying the answer
=−56
Answer:
D
Step-by-step explanation:
1 kilogram = 2.2 pounds
x kilogram = 40 pounds
2.2x = 40
x = 18.1818...
Answer: 18.18 kilograms
Answer: √7 feet
Step-by-step explanation:
Hypotenuse(h)=4ft
Base(b)=3ft
Now,Using pyhagoras theorem,
h²=p²+b²
4²=p²+3²
16-9=p²
p=√7feet
Hence, the remaining side is √7feet
ndex Notation and Powers of 10
10 to the Power 2
The exponent (or index or power) of a number says
how many times to use the number in a multiplication.
102 means 10 × 10 = 100
(It says 10 is used 2 times in the multiplication)
Example: 103 = 10 × 10 × 10 = 1,000
In words: 103 could be called "10 to the third power", "10 to the power 3" or simply "10 cubed"
Example: 104 = 10 × 10 × 10 × 10 = 10,000
In words: 104 could be called "10 to the fourth power", "10 to the power 4" or "10 to the 4"
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