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Ber [7]
3 years ago
9

Bianca calculated the height of the equilateral triangle with side lengths of 10. Then, she used the formula for area of a trian

gle to approximate its area, as shown below. Calculate the area of the equilateral triangle using the formula for area of a regular polygon, and compare it to Bianca’s answer. The apothem, rounded to the nearest tenth, is ---units. The perimeter of the equilateral triangle is ---units. Therefore, the area of the equilateral triangle is---- , or approximately 43.5 units2. The calculated areas are---
Mathematics
2 answers:
tekilochka [14]3 years ago
6 0
2.9
30
1/2(2.9)30
the same. despite different formulas.
give me brainliest pls
DanielleElmas [232]3 years ago
5 0

Answer:

1) - A. 2.3

2) - C. 30

3) - A. 1/2(2.9)(30)

4) - D. The same, despite using different formulas.

Just took quiz.

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Elden [556K]
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8 0
3 years ago
A grasshopper jumps from the ground. The path of the grasshopper is modeled by the equation y=−0.5x2+8x where x is the horizonta
Marysya12 [62]
Please use " ^ " to indicate exponentiation:  <span>y=−0.5x^2+8x 

Examining this function, we see that its graph is a vertical parabola opening down.

You did not supply instructions for this problem.
However, one could guess that you might want to find the highest point of the grasshopper's path.  To do this, find the vertex:  Find the x value defined by 

x = -b/(2a).  Here, a= -0.5 and b= 8.  Thus, the vertex is at x = -8/(2[-0.5]), or 

x -8/(-1) = 8 units.  The corresponding y value is then 

y =  </span><span>−0.5*8^2+8(8)  = -0.5(64) + 64, or 32 units.</span>
6 0
3 years ago
Eight figures are below. Which ones are convex polygons?
Nataly_w [17]

Answer:

A, C, D, F, G. I believe so?

7 0
3 years ago
4. f(x) =-2x+7 Find Range
vlada-n [284]
It’s gonna be all real numbers (-infinity, infinity) because it goes through all the points. And because there’s no restrictions
8 0
3 years ago
Can you help me solve this please step by step
eimsori [14]
First, the values of 2sqrt(3) or 3sqrt(3) are not even twice the length of the given base, 3.

Next, I would say that 6 is the better answer than 12, assuming that the triangle is”drawn-to-scale”.

Finally, I think the hypotenuse is 6.

8 0
2 years ago
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