1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ratelena [41]
3 years ago
10

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

Mathematics
1 answer:
IrinaVladis [17]3 years ago
5 0
The formula for the triangular sequence is Xn=n(n+1)/2

So X25=25(25+1)/2=325
You might be interested in
The ratio of violinists to cellists in the school orchestra must always be 7:3. If the school orchestra has 21 violinists, what
Papessa [141]

Given:

Violinists : Cellists = 7:3.

Number of violinists in the school orchestra = 21

To find:

The combined number of cellists and violinists.

Solution:

Let the number of violinists and cellists in the school orchestra are 7x and 3x respectively.

Then, combined number of cellists and violinists is

\text{Combined number of cellists and violinists}=7x+3x

\text{Combined number of cellists and violinists}=10x      ...(i)

Number of violinists in the school orchestra = 21

7x=21

Divide both sides by 7.

x=3

Now, the combined number of cellists and violinists is

\text{Combined number of cellists and violinists}=10(3)    [Using (i)]

\text{Combined number of cellists and violinists}=30

Therefore, the combined number of cellists and violinists is 30.

5 0
3 years ago
Can someone please help solve 2-7!!! I will give brainliest!!!
patriot [66]
Question 2 is 19.4 I hope I helped!
8 0
3 years ago
Read 2 more answers
If g(x) = -5x + 13, find g(-1)
givi [52]

To solve this problem, we must substitute the value of -1 in for x in the function. This means that for every x there is in the equation, we must substitute the value -1 in for it in order to find the value of g(-1). This is modeled below:

g(x) = -5x + 13

g(-1) = -5(-1) + 13

Next, we must simplify using the order of operations. PEMDAS outlines this concept, telling us to simplify parentheses first, exponents next, then multiplication and division, and finally addition and subtraction. In this case, we will solve the multiplication and then the addition, as modeled below:

g(-1) = -5(-1) + 13

g(-1) = 5 + 13

g(-1) = 18

Therefore, your answer is 18.

Hope this helps!

5 0
3 years ago
Which number in the set {6, 12, 18, 36} satisfies the equation 6x - 18 = 54?
Sergeeva-Olga [200]

Answer:

Here we can go for trial and error,

Taking x=6

So equation will be 6*6-18 which gives 18

and is not equal to 54

So it's, not 6

Trying 12

6*12-18

Which is 54 and so correct answer is x=12

3 0
2 years ago
In right triangle ABC with right angle C, the length of AB is 31 and the length of BC is 14. Find the measure of angle B. Round
aksik [14]

Answer:

1. Sine

2. 14.1

3. Cosine

4. 63.2

5. 418

> Just took it, your welcome :)

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • --2m + 4n2 for m = -6 and n=-5<br> Evaluate the expression
    7·1 answer
  • I will mark you brainliest! How much money did Nikki orginally invest?
    14·2 answers
  • A particle moves along a straight line with equation of motion s = f(t), where s is measured in meters and t in seconds. Find th
    14·1 answer
  • 5. Chloe has 20 unit cubes How many different rectangular prisms can she build with the cubes?
    9·1 answer
  • The table shows values of a function f (x) . HELP
    5·1 answer
  • line c passes through the origin and has a slope of -7.Write an equation like y=mx+b.If theres enough information if not explain
    7·2 answers
  • consider the equation a(4-x) =-3x + b What values of a and b make the solution of the equation x = -5
    15·1 answer
  • Please help me on this question I really need help. :,)
    11·1 answer
  • A group of 15 people are ordering pizza each person wants 2 slices and each pizza has 3 slices how many pizzas should they order
    7·1 answer
  • Canceling units is also called: a. changing the value c. multiplication b. unit analysis d. making connections
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!