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White raven [17]
3 years ago
7

Plz help ill give u brainlist

Mathematics
1 answer:
mafiozo [28]3 years ago
8 0
Area of 1 triangle = 1/2 x 26 x 22.5 = 292.5 yd²

Area of 4 triangles = 292.5 x 4 = 1170 yd²

Answer: 1170 yd²
You might be interested in
Annie’s change purse contained 5 quarters 8 dimes and 8 nickels if Annie chose 2 coin randomly without replacing them in her pur
Bogdan [553]
<h3>Answer:</h3>

2/15

<h3>Explanation:</h3>

There are 8C2 = 28 ways to choose 2 dimes from the 8 dimes in Annie's purse. There are 21C2 = 210 ways to choose 2 coins from the 21 coins in Annie's purse.

Of the 210 ways to choose 2 coins, 28 of the choices will result in 2 dimes being chosen. The probability of choosing 2 dimes is 28/210 = 2/15.

_____

<em>Comment on nCk</em>

The number of ways to choose k objects from n, when order does not matter, is ...

... n!/(k!(n -k)!)

For the computations above, we have ...

... 8C2 = 8·7/(2·1) = 28

... 21C2 = 21·20/(2·1) = 210

8 0
3 years ago
Help after this I only have 5 points
Lena [83]

We break all the bracket out :

-0.75 + 2/5 + 0.4 - 3/4

2/5 = 0.4
-3/4 = -0.75
So, we have : -0.75 + 0.4 + 0.4 - 0.75
= (-0.75 - 0.75) + (0.4 + 0.4) = -1.5 + 0.8 = -0.7

3 0
2 years ago
Please answer correctly !!!! Will mark Brianliest !!!!!!!!!!!!!! Show your work !!!!!!!!!!!
GalinKa [24]

Answer: umm

Step-by-step explanation: uhhhh ok their no work

7 0
2 years ago
How would you characterize the relationship between salary and employee satisfaction scores? Explain.
Llana [10]
Thje more the salary was, the more stisfactory ocurred.
8 0
3 years ago
WILL GIVE BRAINLIEST HELP!!
Lera25 [3.4K]
Answer is : \sqrt[4]{5}

Explanation: 
\frac{ \sqrt[4]{400}}{ \sqrt[4]{5}} = \frac{ \sqrt[4]{4*5*5*2*2} }{\sqrt[4]{5}}

= \frac{\sqrt[4]{5*5*2*2*4}}{\sqrt[4]{5}} =  \sqrt[4]{5*2*2*4}

= \sqrt[4]{5*2*2*4} =  \sqrt[4]{80} 
= \sqrt[4]{2*2*2*2*5}
= \sqrt[4]{2^{4}} \sqrt[4]{5}
= \sqrt[4]{5}


5 0
3 years ago
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