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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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Find the area of the shaded regions. Give your answer as a completely simplified exact value in terms of π (no approximations).
Elan Coil [88]

Answer:

(40/3)*pi

Step-by-step explanation:

lets first find the area of the little circle

A=pi*r^2

A=pi*3^2

A=9pi

Now, lets find the area of the big circle

A=pi*r^2

A=pi*(3+4)^2

A=pi*7^2

A=49pi

now lets subtract the area of the little circle from the area of the big circle

49pi-9pi=40pi, now we found the area of the "bagel)

lets find what portion of the bagel is the shaded region

120/360=1/3

now lets multiply the bagel area by the fraction

40pi*(1/3)=

(40/3)*pi   or  (40*pi)/3

4 0
2 years ago
What is the slope of the line that passes through (4, 12) and (5, 16)?
Alex
The slope is 4/1 aka 4!
4 0
2 years ago
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The sum twice a number and 7, OMG I NEED HELP WITH THIS QUESTION SO I won't FAIL the test grades are due tomorrow
ZanzabumX [31]

The value of the sum of twice a number and 7 is 17.

<h3>What is an expression?</h3>

An expression is used to show the relationship between the variables that are given.

Let the number in this situation be 5. This will be illustrated as:

2n + 7

where n = number = 5

= 2n + 7

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= 10 + 7

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Therefore, the number is 17.

Learn more about numbers on:

brainly.com/question/24644930

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6 0
1 year ago
Richard purchased some books for $9.25 each. He paid a total of $46.25. If b is the number of books, which equation can be used
tamaranim1 [39]

Answer:

9.25b=46.25

Step-by-step explanation:

9.25b=46.25/:9.25

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7 0
3 years ago
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k0ka [10]

Answer:

Took FLVS test and got it right

A. y=x, x-axis, y=x, y-axis.

Step-by-step explanation:

Took FLVS test and got it right

A. y=x, x-axis, y=x, y-axis.

8 0
2 years ago
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