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Radda [10]
3 years ago
13

The length of a rectangle is 1 ft less than double the width, and the area of the rectangle is 21 ft^2. Find the dimensions of t

he rectangle.
Mathematics
1 answer:
ICE Princess25 [194]3 years ago
4 0

Let the width be w, then length = 2w - 1

Area = length times width = w(2w - 1) = 21.

Thus, 2w^2 - w = 21 or 2w^2 - w - 21 = 0

Solving the quadratic equation gives that w = 3.5.

Therefore, width is 3.5 ft and length is 2(3.5) - 1 = 6 ft.

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Function 1
goldenfox [79]

Answer:

non linear because a line goes straight this drops back down

4 0
3 years ago
A landscaper is planting a row of 10 shrubs along the walkway shown below. There must be one shrub at the very beginning and one
rewona [7]

Answer:

9d = 36

Step-by-step explanation:

See attachment for complete question

Length = 36ft

n = 10

From the question, we understand that one shrub must be at both ends.

Taking the first as a point of reference, we're left with:

(n - 1) * distance = 36

Substitute 10 for n and d for distance

(10 - 1) * d = 36

9 * d = 36

9d = 36

Hence:

9d = 36 answers the question

4 0
4 years ago
The probability of spinning an odd number, flipping heads and then spinning a 3 is?
Olenka [21]
<h3>Answer:  5/162</h3>

===================================================

Work Shown:

A = probability of landing on an odd number

A = 5/9 because there are 5 odd numbers out of 9 total

B = probability of getting heads

B = 1/2

C = landing on 3 on the spinner

C = 1/9

Multiply the values of A,B,C

A*B*C = (5/9)*(1/2)*(1/9) = (5*1*1)/(9*2*9) = 5/162

Note: The fraction 5/162 converts to the approximate decimal 0.03086 which then converts to 3.086%, when rounding to the nearest tenth of a percent we get 3.1%

6 0
3 years ago
Imani spent half of her weekly allowance to purchase Cyberpunk 2077 . To earn more money her parents let her wash the dishes for
Sav [38]

Answer:

120

Step-by-step explanation:

75-15=60. (Edit) Just realized that she spent her allowance that week, so it would be 120 because you need to multiply.

3 0
3 years ago
Read 2 more answers
The coach of the track and field team is putting together groups of runners to run relays. Each group will need to run a race th
andrew11 [14]

Answer:

16 runner

Step-by-step explanation:

It is given that,

Each group will need to run a race that is 1/2 of a mile long. Each runner has to run 1/8 of a mile in the race.

Let there are x no of runners. ATQ,

\dfrac{1}{8}x=\dfrac{1}{2}\\\\x=\dfrac{(1/2)}{(1/8)}\\\\x=16

So, there are 16 runner that are needed for each relay race group.

4 0
3 years ago
Read 2 more answers
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