Area of triangle = 1/2 ABsinC
Since all sides are equal, it means it is an equilateral triangle
⇒All angles are 60°
Area of triangle = 1/2 ABsinC
Area of triangle = 1/2 (3.5)(3.5)sin(60°)
Area of triangle = 5.3 in²
<span>Which of the following are true:
</span>A & B are true
The product of the expressions 2 × 10⁵⁸ and 2 × 10⁻²³ in the scientific notation will be 2 × 10³⁵.
<h3>What is multiplication?</h3>
It is also known as the product. If the object n is given to m times then we just simply multiply them.
The expressions are given below.
2 × 10⁵⁸ and 2 × 10⁻²³
Then the product of the expressions will be
(2 × 10⁵⁸) × (2 × 10⁻²³) = 2 × 10⁵⁸⁻²³
(2 × 10⁵⁸) × (2 × 10⁻²³) = 2 × 10³⁵
More about the multiplication link is given below.
brainly.com/question/19943359
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Well first you get N on one side alone,
Multiply it by 7 on both sides
N = -28
That is your answer, N = -28
You can use the arithmetic sequence equation. This will tell you the number of seats in the last row
An = A1+ (n-1)d
<span>An = 4+(24-1)5 </span>
<span>An = 4 + (23)(5) </span>
<span>An = 4 + 115 </span>
<span>An = 119 </span>
Then, you take that answer and plug it to this equation: <span>Sn = n(a1 + an)/2 </span>
<span>
Sn = 24(4+119)/2 </span>
<span>Sn = 24(123) /2 </span>
<span>Sn = 1476 </span>