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g100num [7]
2 years ago
13

1 1 11 - + - + - 4 3 12 = ????

Mathematics
2 answers:
alekssr [168]2 years ago
5 0
Take a picture so we can see what you’re talking about
Temka [501]2 years ago
4 0

Answer:

What?

Step-by-step explanation:

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Find the area of an equilateral triangle with apothem 7 cm.
lbvjy [14]
So hmm check the picture below

using the 30-60-90 rule, we get that much.. .bear in mind, an equilateral triangle has all equal sides, and therefore, all equal angles, so each angle is 60°, run a median through it from the center, and you split it in half

\bf \textit{area of an equilateral triangle}\\\\
A=\cfrac{s^2\sqrt{3}}{4}\qquad 
\begin{cases}
s=\textit{length of one side}\\
----------\\
s=14\sqrt{3}
\end{cases}\implies A=\cfrac{(14\sqrt{3})^2\sqrt{3}}{4}
\\\\\\
A=\cfrac{14^2\cdot 3\sqrt{3}}{4}\implies A=\cfrac{588\sqrt{3}}{4}\implies A=147\sqrt{3}

8 0
3 years ago
Mr. Clifton was preparing for his upcoming birthday party. He ordered 51 white balloons and 47 red balloons. As he walked to his
Andrej [43]

Answer:

28 i think

Step-by-step explanation:

51+47=98

98-12 the ones that flew away that takes it to 86

86/3 the 3 balloons buntch than is 28

p.s. i mght of got some equations wrong but this is what i got

4 0
3 years ago
Please help no troll im really confused i'm offering 20 points
MatroZZZ [7]

Answer:

4) choice 1) 14.7 cm

5) choice 2) 14.8 cm

Step-by-step explanation:

4) 10^2 + 10^2 + 4^2 = 216

sq rt 216 = 14.7

5) 14^2 + 3^2 + 4^2 = 221

sq rt 221 = 14.86

3 0
3 years ago
What is the greatest common factor that could be used to reduce 36/90
TEA [102]
I got 18 for this one............
3 0
3 years ago
Read 2 more answers
Simplify: –3(y 2)2 – 5 6y What is the simplified product in standard form? y2 y.
s344n2d4d5 [400]

The simplified product in standard form is ..

-3y^2 + -6y + -17

Edge 2022!

6 0
2 years ago
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