WILL GIVE BRAINLY IF CORRECT PLEASE HELP

Mathematics

2 answers:

balandron [24]3 years ago

6 0

Answer:

7 ⋅ 2 ⋅ y = 2 ⋅ 7 ⋅ y

14 ⋅ y = 14 ⋅ y

14 ⋅ y = 14y

Step-by-step explanation:

Mnenie [13.5K]3 years ago

5 0

Answer:

Step-by-step explanation:

7(2y) = (7×2)y

Put the 7×2 in the box with parentheses around it. Put the y in the second box.

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The area of the following equilateral triangle is 62.4 square feet that is he height

Vikentia [17]

The height of this triangle would be 10.4

In order to find this, you first must find the length of the sides. Using a manipulated formula for area of an equilateral triangle, we can determine the lengths of the side. Below if the formula.

S = $\frac{2}{3}3^{\frac{3}{4}} \sqrt{A}$

In this, S is the length of the side and A is the area. So we plug in and get:

S = $\frac{2}{3}3^{\frac{3}{4}} \sqrt{62.4}$

S = $\frac{2}{3}3^{\frac{3}{4}} 7.89$

S = 12

Now that we have the side as 12, we can use the Pythagorean Theorem to find the height. If you split a equilateral triangle down the middle, you are left with two right triangles. Using this right triangle, the hypotenuse would be 12, the first leg would be 6 (half of the base) and the height would be the other leg. So we plug in and solve.

$a^{2} + b^{2} = c^{2}$