A fountain is made up of two semicircles and a quarter circle. Find the perimeter of the fountain. If each of the semi circles have a diameter of 10ft

39.29 ft

Step-by-step explanation:

We are made to know that the fountain contains two semi circles and a quarter-circle.

This means the fountain contains a total of 1+1/4 = 1.25 circles

Interestingly, the circles are similar and have the same diameter.

Now the perimeter of a circle with diameter 10ft is simply πd = 10 π

Now, since we have a total of 1.25 circles, the total perimeter would be 1.25 * 10 π = 12.5 π ft

With π as 22/7, the actual value of the perimeter would be 39.29 ft

15

step-by-step explanation:

we are given the following expression and we are to solve it and find the product:

-13 × (-5)

solving the given expression in the standard order of solving a mathematical expression, beginning with the opening of brackets and then multiplying the terms and changing their signs.

-3 × -5 = 15 (answer is positive because when negative is multiplied with negative, it gives a positive answer)

29.5977692753

step-by-step explanation: