**Answer:**

5 x 7=35

**Step-by-step explanation:**

**Option B**

**48th term of arithmetic sequence is -152**

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**Solution:**</u></h3>

Given that a arithmetic sequence has explict formula,

To find: **48th term of the arithmetic sequence**

The nth term of arithmetic sequence can be found by substituting the required value of n in the explict formula

So 48th term of the arithmetic sequence can be found by substituting n = 48 in explict formula

Plug in n = 48

On solving we get,

Thus 48th term of arithmetic sequence is -152

Divide the perimeter by 3 to find the side length.

Since the formula for the are of a triangle is

1/2 * b * h the height must be found.

If a perpendicular line is drawn from the apex of the triangle, a right triangle is formed with a base of 5 and a hypotenuse of 10. Also since it originally was equilateral the base angle is 60 degrees. The rules for finding lengths of sides of equal. Triangles is long leg = sqrt3 * short leg

the height is the long leg so the height is 5sqrt3.

A=(1/2)(10)(5sqrt3)= 25sqrt3

**Answer:**

A) 13,564

**Step-by-step explanation:**

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