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Vladimir [108]
3 years ago
6

With a rectangle length of 309 cm.and width of 249cmdoes it have the perimeter of 1500 cm?

Mathematics
1 answer:
horsena [70]3 years ago
7 0
1116 is the perimeter it has. The formula for perimeter is 2l+2w=p
so when you plug the numbers in you get 2(309)+2(249)=1116. So it does not have a perimeter of 1500 cm.
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MakcuM [25]

Answer:

N: n = 5 sides

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circumradius: R = 19.7351 m

Area: A = 926.03 m2

perimeter: P = 116 m

interior angle: x = 108 °

exterior angle:  y = 72 °

Description:

We use the calculations on the shape 16 and 23.2. Side length is 23.2. Pi is 16. calculate the numbers and all the answers are added above.

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8 0
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Alexus [3.1K]

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Step-by-step explanation:

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2 years ago
The length of a rectangle is 5 more than the width. The perimeter is 120. What is the length, width, and area? Please HELP
Ad libitum [116K]

Answer:

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width is w

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P = 2( l+w) , substitute l for 5+w

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5 0
2 years ago
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Answer: 1:  x=3, x=1

2:  x= -5

3:  There are 2 real solutions.

4:  There are 2 real solutions.

5:  There are no real solutions.

6.  There is 1 real solution.

7.  

8.  x= -6, x = -2

9.  x = -1/6, x=1

10.  

Explanation:

1.  The quadratic formula is

Substituting our known information we have:

2.  Rewriting the quadratic in standard form we have x²+10x-25=0. Substituting this into the quadratic formula gives us:

3.  The discriminant is b²-4ac.  For this problem, that is 20²-4(-4)(25)=400--400=800.  Since this is greater than 0, there are 2 real solutions.

4.  The discriminant in this problem is 7²-4(2)(-15)=49--120=49+120=169.  This is greater than 0, so there are 2 real solutions.

5.  The discriminant in this problem is 1²-4(-2)(-28)=1-224=-223.  Since this is less than 0, there are no real solutions.

6.  If the discriminant of a quadratic is 0, then by definition there is 1 real solution.

7.  Rewriting the quadratic we have 3x²-4x-2=0.  Using the quadratic formula we have:

8.  Factoring this trinomial we want factors of 12 that sum to 8.  6*2 = 12 and 6+2=8, so those are our factors.  This gives us:

(x+6)(x+2)=0

Using the zero product property we know that either x+6=0 or x+2=0.  Solving these equations we get x= -6 or x= -2.

9.  Factoring this trinomial we want factors of 6(-1)=-6 that sum to -5.  (-6)(1)=-6 and -6+1=-5, so this is how we "split up" the x term:

6x²-6x+1x-1=0

We group together the first two and the last two terms:

(6x²-6x)+(1x-1)=0

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6x(x-1)+(1x-1)=0

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6x(x-1)+1(x-1)=0

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(x-1)(6x+1)=0

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10.  Substituting our information into the quadratic formula we get:

Step-by-step explanation:

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2 years ago
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Sergeeva-Olga [200]

Answer:

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Explanation:

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Given: \triangle TRE has vertices T(3,6) , R(-3,10) and E(-9,4).

Here, line TM is a median of triangle TRE where M is the midpoint of RE.

The midpoint of  M of the line segment from R(-3,10)  to E(-9,4) is;

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Therefore, the coordinate of point M is, (-6,7).

7 0
2 years ago
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