Which of the following expressions could be used to represent "the difference between -17 and -8"?
2 answers:
Answer:
-17 - (-8)
Option 3 is correct.
Step-by-step explanation:
Phrase: "the difference between -17 and -8"
Expression: To write the phrase into algebraic form with a variable or constant.
Difference: write two number using subtraction between them.
"the difference between -17 and -8"
First number is -17 and second number is -8
Expression: -17 difference -8
Now using minus sign write as expression.
Hence, The correct expression is -17-(-8)
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Answer:
3 times more.
Step-by-step explanation:
The odds of landing a dart in any of the circles correspond to the surface area of the circle.
Calculate the surface area of both circles:
The formula for the area of a circle is .
- inner circle:
- for the outer circle, use the formula then subtract the value of the inner circle, to find the remaining area:
Calculating greater chance:
Divide the larger area by the smaller area:
That means that the area of the outer circle is 3 times larger, making it 3 times more likely to hit the outer circle. Therefore the points for hitting the inner circle should be 3 times more.