245.34 is 174% of 141 :)
(1.74*141=245.34)
It helps to remember that "of" in math means to multiply. That's helped me for years.
Answer:
x=70
Step-by-step explanation:
Angle 1 will be 90° when it subtends a 180° arc. That means the sum of 100° and (x+10) must be 180°, so (x+10) = 80°.
We assume this is intended to mean ...
... (x +10)° = 80° . . . . . note the ° symbol added outside parentheses
... x +10 = 80 . . . . . divide by °
... x = 70 . . . . . . . . .subtract 10
_____
If the intent is (x+10°) = 80°, then x=70°.
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<em>Comment on the numbers here</em>
Units need to be properly specified in problems of this nature. <em>As written</em>, we probably should assume that 10 is <em>radians</em>, and x is a large negative number, about -8.60374 (radians), or -492.958°.
A number of radians is a "pure number." It has <em>no units</em>. The term "radians" is used to signify that the number is considered to be an angle measure.
The total population in the region is 942000
<u>Step-by-step explanation:</u>
Radius of the region= 10 miles
Population density= 1500 per square mile
Area of the region = 2π(r x r)
= 2π(10 x 10)
=2(3.14) (100)
= 628 square miles
Population = 1500 x 628
= 942000
The total population in the region is 942000
Answer:
69a-10
Step-by-step explanation:
