MATHEMATICS MIDDLE SCHOOL

3s4t + 3s3t – 6s2t

I raised the points for this question, its hard I know but I need help!

Answers

Answer 1
Answer: I believe the answer is 5t
6s7t-6s2t = 5t 
Answer 2
Answer: I also think the answer would be 5t
6s7t-6s2t = 5t 
It looks correct to me!

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Segments AB, DC and Ec intersect at point C. Angel DCE measures 148. Find the value of x.

Answers

The image is attached.

Answer:

x = 16°

Step-by-step explanation:

Segment AB, segment DC and segment EC all intersect at point C.

Here, we are told angle DCE measures 148°.

This is a semi-circle, and the total angle of a semi-circle is 180°.

Which means, x+x+148 = 180

Solving for x, we have:

x+x+148 = 180

2x + 148 = 180

2x = 180 - 148

2x = 32

x = (32)/(2)

x = 16°

The value of x is 16°

Final answer:

To find the value of x, we need to deduce the measurements of angles formed by the intersecting segments. By applying the properties of angles in triangles and parallel lines, we can determine that x equals 32 degrees.

Explanation:

Let's name the point of intersection as M. Since segments AB, DC, and EC intersect at point C, it means that point C is common to all three segments.

Given that angle DCE measures 148 degrees, it means that angle DCM (formed by segments DC and EC) is also 148 degrees. We know that the sum of angles in a triangle is 180 degrees.

Therefore, angle CMD (formed by segments DC and AB) is equal to 180 - 148 = 32 degrees. Since segments DC and AB are parallel, angle CMD is also equal to angle ACB.

Hence, the value of x is 32 degrees.

Learn more about Angles and Intersecting Segments here:

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The weight limit on a bridge is 5 tons what is this weight in pounds

Answers

well 2,000 pounds = 1 ton so 2,000 * 5 = 10,000
Its 10,000 one ton is 2,000 2,000×5=10,000

Height of a triangle with base 5m and area 20m2

Answers

Since the "base of a triangular sail is 5m shorter than its height", we have the equality  

 Start with the formula for the area of a triangle 


 Plug in , , and  


 Multiply both sides by 2 


 Distribute 


 Subtract 36 from both sides 



 Factor the right side (note: if you need help with factoring, check out this solver) 



Now set each factor equal to zero: 
 or  

 or  Now solve for x in each case 


So our possible answers are 

 or  


However, since a negative height doesn't make sense, our only solution is  



So the height is 9 m 

Now subtract 5 from the height to get the base 


 


So the base is 4 m 



Check: 


 Start with the formula for the area of a triangle 


 Plug in , , and  


 Multiply 


 Divide. Since the two sides of the equation are equal, this verifies our answer. 
If you have a triangle with a base of 5m and an area of 20m2, to find the height begin with the formula of the area of a triangle.

A=1/2bh

Then, plug in your known numbers

20m2=1/2h(5m)

What I do next, is I work backwards by dividing the are by 1/2, which equals 40. All that is left to do, is divide this number, 40, by 5 to find the height.

40/5=8

Therefore, the height of the triangle is 8m

What is the estimated sum of 3829+4346+6354 rounded to the nearest hundred?

Answers

okay if u add 3829+4354+6354=14529 if u look 5 its on hundredths place so look to the right if its 5 or more than bump it up if its not than put zero the answer for this is 14500 hope this help:)
3829 = 3800

4346 = 4300

6354 = 6400

3800 + 4300 + 6400 = 14500

HOPE THIS HELPED
:)

How does the bridge type relate to the distance it can span?

Answers

The shape of the bridge and the structure helps bear all of the weight needed to hold on a bridge.

Our school swimming pool is 25 m long . If our coach wants us to swim 3 kilometers how many lengths of pool will we need to swim?

Answers

1km=1000m

3km=1000*3=3000m

3000m/25m=120lengths

Answer=120 lengths
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