Answer:
A.
Step-by-step explanation:
Each mark represent 0.1 unit, so if you count from 0 to you get 0.5 that is exactly the same that (for convention the left of the 0 is taken as negative and the right as positive).
It would be take upto 999 revolutions.
<em>Let try to solve it,</em>
Let n represent number of revolutions.
We are asked to find the number of revolutions it will take for a car wheel of diameter 30 in. to travel a distance of one mile.
1 mile = 63360 inches.
We will use circumference of circle formula to solve our given problem.
Circumference = pi*d , where, D represents diameter of circle.
Now, we will set the product of n and circumference of circle equal to 63360 inches as:
pi*22*n= 63360
n= 63360*7/ 22*22
n= 443520/444
n= 998.91
Therefore It would be take upto 999 revolutions.
Learn more about Circumference of circle on:
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Answer:
Area= 70x^3y^2
Perimeter = 20x^2 + 14 xy^2
Step-by-step explanation:
Area is just multiplying the length and width, I multiplied the constants first which gets us 70 then multiplied the variables, they combine however only the x's can be multiplied to each other which results in 70x^3y^2 . The perimeter you just multiply the length by two and the width by two, they are separate because the variables when added to each other do not combine.
7,14,21,28,35,42,49,56,63,70,77,84,91,<span>98,105,112,119,126,133,140,147,154,161,168 that is multiples of 7
</span>20<span>, 40, 60, 80, 100, 120, 140 that is some multiples of 20
</span>hope it helps you
Answer:
-10 and -5
Step-by-step explanation:
Add -10 and -5 and you get -15, multiply the two and you'll get positive 50, because multiplying two negative numbers gives you a positive number, in this case 50.