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ratelena [41]
2 years ago
10

What is the 29th sequence in the triangular number sequence a.k.a the pascals sequence

Mathematics
1 answer:
IrinaVladis [17]2 years ago
5 0
The formula for the triangular sequence is Xn=n(n+1)/2

So X25=25(25+1)/2=325
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Help with some math homework? The area of a triangle is 110 square inches. the height of the triangle is 8 less than 3 times its
Alenkasestr [34]
A = h x b; where A = area of a triangle; h = height of the triangle; b = base of the riangle;
So, we have the equation : 110 = (3b - 8)b;
We solve the equation 3b^2 - 8b - 110 = 0;
The positiv solution  is b = 7.53 cm;
h = 3 x 7.53 - 8;
h = 14.59 cm;
3 0
3 years ago
Kelly rows a boat at the rate of 7040 yards per hour. How fast did Kelly row in miles?
irakobra [83]

Answer:

4 mph

Step-by-step explanation:

yard → mile = divide the length value by 1760

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6 0
3 years ago
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pychu [463]

Answer:

x=16°

Step-by-step explanation:

5*x-30=2*(x+18)

For the second, I'd say it is:

5*x-30=2*x+18  

Let's solve both.  

5*x-30=2*(x+18)

5x-30=2x+36

3x=66

x=22  

5*x-30=2*x+18

3x+48

x=16°

8 0
3 years ago
Find the measure of the exterior angle.
miss Akunina [59]

Answer:

120 degrees! (line) or 300.

Step-by-step explanation:

All lines are 180 degrees, this triangle is congruent, so all sides are 60 degrees. 180 minus 60 is 120.

If it's a measure of a 360 degree angle, using 2 lines from the triangle, then you take 60 away from 360. A circle formed with that angle at it's radius would be 300 degrees.

4 0
2 years ago
Read 2 more answers
What do I do I’m lost I need help?
ale4655 [162]

Answer:

27

Step-by-step explanation:

the sequence is 4 added to each number. 4 added to 23 is 27

8 0
2 years ago
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