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anzhelika [568]
3 years ago
8

Randomly picking a green card from a standard deck of playing cards

Mathematics
1 answer:
kogti [31]3 years ago
7 0
Ace of diamonds................... but green instead of red
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Evan wants to build a rectangular enclosure for his animals. One side of the pen will be against the barn, so he needs no fence
pentagon [3]

Answer:  A.   A=(1000-2w)*w      B. 250 feet

C.  125 000 square feet

Step-by-step explanation:

The area of rectangular is A=l*w    (1)

From another hand the length of the fence is 2*w+l=1000        (2)

L is not multiplied by 2, because the opposite side of the l is the barn,- we don't need in fence on that side.

Express l from (2):

l=1000-2w

Substitude l in (1) by 1000-2w

A=(1000-2w)*w        (3)   ( Part A. is done !)

Part B.

To find the width w  (Wmax) that corresponds to max of area A   we have to dind the roots of equation (1000-2w)w=0  ( we get it from (3))

w1=0  1000-2*w2=0

w2=500

Wmax= (w1+w2)/2=(0+500)/2=250 feet

The width that maximize area A is Wmax=250 feet

Part C.   Using (3) and the value of Wmax=250 we can write the following:

A(Wmax)=250*(1000-2*250)=250*500=125 000 square feets

3 0
3 years ago
jasmine had 11 friends over at her house. everytime the doorbell rang 2 more friends arrived. the doorbell rand 3 times. how man
Lelechka [254]
I'm pretty sure the answer is 17
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3 years ago
Which shows the best use of the associative and communitive properties to make simplifying 3/4 - 5 + 9 - 2/4 + 2 easier?
Alex Ar [27]

Answer:

The Answers A.

Step-by-step explanation:

3 0
3 years ago
Monticello residents were surveyed concerning their preferences for candidates Moore and Allen in an
Svetlanka [38]
You just subtract 300 from 800 to get 500 people
8 0
3 years ago
True or false<br> The solution set of 2x+5=x-3is {-8}
irinina [24]

Answer:

True

Step-by-step explanation:

2x+5=x-3 is (-8)

This is the correct answer

3 0
3 years ago
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