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Eva8 [605]
3 years ago
6

a railway car is 3.2m in diameter and 17.2m long. estimate the cost of painting the outside of the railway car, if a can of pain

t covers an area of 40m squared and costs $35
Mathematics
1 answer:
yaroslaw [1]3 years ago
7 0
The awnser would be 43.768
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M∠A = 75 + 5x
Firlakuza [10]

Answer:

See below

Step-by-step explanation:

For a parallelogram m < A = m < C so:-

75 + 5x = 87 + 3x

2x = 12

x = 6  

and m< A = 75 + 30 = 105

and m < C = 87 + 18 = 105

Now if the other 2 angles are  = 75 degrees( that is the same side angles add up to 180 degrees) we have proved that it is a parallelogram.

m < B = m < D

111 - 6x = 39 + 6x

-12x = -72

x = 6

m < B = 111 - 36 = 75 and m < D = 39 + 36 = 75

So this has been proved.

6 0
3 years ago
What is the difference, in meters, between the length of the longest line and the length of the shortest line?
ivolga24 [154]

Answer:

Range = 3.169m

Step-by-step explanation:

Given

See attachment for complete question

Required

Determine the difference between the shortest and the longest

This question implies that we calculate the range.

Range = Longest - Shortest

From the table, we have:

Longest = 8.7m

Shortest = 5.531m

So, we have:

Range = 8.7m- 5.531m

Range = 3.169m

5 0
3 years ago
What is an equation for the translation of (x – 2)2 + (y + 1)2  = 16  by 3 units left
Akimi4 [234]
Answer: ( x + 1)² + (y - 4)² = 16

Explanation:

1) The given equation,  ( x - 2)² + (y + 1)² = 16, represents a circumference with center (2,-1) and radius √16 = 4.

1) The translation will not modify the radius of the circunference, siince translations are rigid transformations.

2) The translation 3 units to the left and 5 units upward certainly will move the center of the circunference.

This is how:

(x,y) → (x - 3, y + 5)

(2, -1) → (2 - 3, - 1 + 5) = (- 1, 4)

3) Then, keeping the same radius and being the center (-1,4), the equation of the circumference after the translation will be:

( x + 1)² + (y - 4)² = 16 ← answer


6 0
3 years ago
Classify each polynomial by its degree and number of terms
Soloha48 [4]
You have that:

 1) 7x/4+3 (Name using degree: First degree polynomial),(Name using number of terms:binomial)

 2) 5.2x^2-4x+2.5 (Name using degree: Quadratic polynomial),(Name using number of terms:trinomial)

 3) 3/5 (Name using degree: zero degree polynomial),(Name using number of terms:monomial)

 4) 0.75x^2 (Name using degree: Quadratic degree polynomial),(Name using number of terms:monomial).
6 0
3 years ago
Read 2 more answers
Pls help :(((((((((((((((((((((
Free_Kalibri [48]

Answer:

1

Step-by-step explanation:

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4 0
3 years ago
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