One side of a triangular garden is x feet long. The other two sides of the garden are both 5 feet less than twice the length of the first side of the garden.Part A: Write a simpiflied expression for perimeter, in feet, of the garden.

A fence is placed along the entire perimeter of the triangular garden. The roll of fencing is 40 ft long.

Part B: Write a simplified expression to show the amount of fencing, in feet, which is left from the roll of fencing.

Answers

Answer 1

Answer: I think Part A is (X x 2)-5 and Part B is 40 x 3. I'm not so sure because I'm in 5th grade and I haven't learned this yet. I hope it helps a little bit and I hope it is right.

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Use the given data to construct a confidence interval for the population standard deviation, σσ. Assume that the population has a normal distribution: The football coach randomly selected the following players and timed how long each player took to perform a certain drill. The times (in minutes) were:[10,10,15,10,11,7,5,5]Find a 95.0 confidence interval for the population standard deviation σA) 2.6194049<σ<6.43192582.6194049<σ<6.4319258B) 2.2194049<σ<6.83192582.2194049<σ<6.8319258C) 2.6194049<σ<7.43192582.6194049<σ<7.4319258D) None of These
52% of ______days is 13 days.

An airliner travels 15 miles in 2 minutes.what is its speed in miles per hour

Answers

(15 miles / 2 minutes) times (60 minutes / 1 hour) = 15 x 60 / 2 = 450 miles per hour.

Remember:

1 mile per minute = 60 miles per hour

So:

$(15 \ miles)/(2 \ min)=(15)/(2)*60=450 \ miles \ per \ hour$

Help me please seriously my work is due at 2pmThe beam from a lighthouse is visible for a distance of 14 mi. To the nearest square mile, what is the area covered by the beam as it sweeps in an arc of 270°?

The beam covers an area of _____ mi^2.

Answers

Answer:

Step-by-step explanation:

area of a circle= (pi) x r^2

a= 3.14 x 7^2

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What two numbers multiply to 64 and add up to negative 16

Answers

The two numbers multiply to 64 and add up to negative 16 are -8, -8.

What is Algebraic expression ?

Algebraic expressions are numbers expressed using letters or alphabets without specifying their values. Algebra taught us how to express unknown values using letters such as x, y, and z. There can also be a single value that is placed before and multiplied by a variable in an algebraic expression in addition to these letters, which are called variables.

Let us assume first number be = x

and, let the second number be = y

then,

multiplication of two number will be :

xy = 64...(1)

addition of two numbers will be -16 that is :

x + y = -16..(2)

we have :

(x+y)² - (x-y)² = 4xy

(x-y)² = (x+y)² - 4xy

(x-y)² = (-16)² - 4 x 64

(x-y)² = 256 - 256

(x-y)² = 0

(x-y) = 0

x = y

Now, from equation (2) we have ":

x + y = -16

x + x = -16

2x = -16

x = y= -8

Therefore, the two numbers multiply to 64 and add up to negative 16 are -8, -8.

Answers

Final answer:

The original price for which 4% equals to $3.80 is $95.00 (option c). This was calculated by dividing the given percentage amount ($3.80) by the percentage rate (0.04, which is 4% in the decimal form).

Explanation:

The question is asking us to find out what price $3.80 is 4% of. To answer this, we need to solve for the unknown price, which we'll call 'X'. In the context of this problem, we set up the equation 0.04*X = $3.80. To solve for 'X', we divide $3.80 by 0.04 to find out the original price. Therefore, X equals $95.00, which means that $3.80 is 4% of $95.00. Thus, the answer is c. $95.00.