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Step2247 [10]
3 years ago
6

The width of a rectangular playground is 2x -5 feet and the length is 3x+9 feet write the polynomials that represent the area an

d the perimeter of the playground
Mathematics
1 answer:
Levart [38]3 years ago
4 0

Answer:

Part 1) A(x)=6x^{2} +3x-45

Part 2) P(x)=10x+8

Step-by-step explanation:

Let

L -----> the length of a rectangular playground

W ---> the width of a rectangular playground

we have

W=(2x-5)\ ft

L=(3x+9)\ ft

step 1

Find the area of the playground

The area of a rectangle is equal to

A=LW

substitute the given values

A(x)=(3x+9)(2x-5)\\A(x)=6x^{2} -15x+18x-45\\A(x)=6x^{2} +3x-45

step 2

Find the perimeter of the playground

The perimeter of a rectangle is equal to

P=2(L+W)

substitute the given values

P(x)=2((3x+9)+(2x-5))

P(x)=2(5x+4)

P(x)=10x+8

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8 0
3 years ago
Can anybody help me with these two questions​
sladkih [1.3K]

Answer:

#1 is 39

#2 is 10 1/2

Step-by-step explanation:

Hopefully this helped, if not HMU and I will try my best to get you a better answer!

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4 0
3 years ago
A tank containing 2.85 cube of oil how many bottles of 300 ml capacity can be filled out of it​
Ronch [10]

Answer:

9,500 bottles.

Step-by-step explanation:

1 cubic meter = 1000000 milli liters

We can convert (2.85 cubic meter) to (milli liters) as

1 cubic meter = 1000000 milli liters

2.85 cubic meter = X milli liters

If we Cross multiply and find X, we have

X milli liters = [(2.85 cubic meter × 1000000 milli liters) ] / 1 cubic meter

X= 2850,000 milli liters

Then (2.85 cubic meter) will be equal to ( 2850,000 milli liters)

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11/12 is the greatest fraction
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3 years ago
There were 6 purple socks and 4 oraange socks without looking and then another without looking (or replacing the first). What is
shusha [124]

Answer:

The probability that he picked 2 purpled socks is <u>0.33</u>.

Step-by-step explanation:

Given:

Number of purple socks, n(P) = 6

Number of orange socks, n(O) = 4

Two socks are picked without replacement.

Now, total number of socks, n(T)=N(P)+n(O)=6+4=10

Probability of picking the first cap as purple cap is given as:

P(P1)=\frac{n(P)}{n(T)}\\\\P(P1)=\frac{6}{10}=\frac{3}{5}

Since there is no replacement, the number of socks decreases by 1. Also, if the first sock picked is purple, then number of purple socks is also decreased by 1.

Therefore, probability of picking the second cap as purple cap is given as:

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Now, probability that both the picked caps are purple is given by their probability product. This gives,

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Therefore, the probability that he picked 2 purpled socks is 0.33

4 0
3 years ago
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