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
natta225 [31]
2 years ago
13

What is TR(39)? pls help this is going to be on my exam...

Mathematics
1 answer:
musickatia [10]2 years ago
3 0

Answer:

780

Step-by-step explanation:

So when you're adding consecutive numbers like this. 1+2+3...+39. You add 39 and 1. This is 40. 2+38 is 40. This is a pattern. Now, we do 40 multiplied by 39 and this will give you the number 1620. After this you would have to divide this product by 2. The answer will soon be 780.

You might be interested in
The function h ( x ) = 1 x − 1 h ( x ) = 1 x - 1 can be expressed in the form f ( g ( x ) ) f ( g ( x ) ) , where g ( x ) = ( x
Radda [10]

Answer: f(x) = 1^(x + 1)

Step-by-step explanation:

we have that h(x) = 1^x

and h(x) = f(g(x))

This mean that we are evaluating the function f(y) in the point y = g(x)

where g(x) = x - 1

then:

f(g(x) = f(x - 1) = h(x) = 1^x

then we should have that:

f(x) = 1^(x + 1)

then:

f(x - 1) = 1^(x - 1 + 1) = 1^x

4 0
3 years ago
How would you solve 7x + 2(x+5) < 3x-14
Daniel [21]
So first you want to start in the parentheses
x+5
so what you do is 2 times x which is 2x
2 times 5 which is ten
7x+10x <3x-14
-10× - 10x



-3x
5 0
3 years ago
In order to determine if there is a significant difference between campuses and pass rate, the chi-square test for association a
RUDIKE [14]

Answer:

57.5

Step-by-step explanation:

The expected frequency of West Campus and Failed :

Let :

Failed = F

East Campus = C

West Campus = W

Passed = P

Frequency of FnW :

[(FnE) + (FnW) * (PnW) + (FnW)] / total samples

[(52 + 63) * (63 + 37)] / 200

[(115 * 100)] / 200

11500 / 200

= 57.5

n(Failed n East campus)

5 0
2 years ago
I need help with any of these questionss
Iteru [2.4K]

Answer:

sorry hindi ko alam hirapuwu

6 0
3 years ago
Read 2 more answers
20 POINTS NEED HELP ASAP QUESTION IN PICTURE BELOW
crimeas [40]
For this case we have the following solution.
 x = gallons of water to be added
 For the 10% solution we have:
 0.1 * 8 = 0.8
 Then, for 5% we have:
 (0.8 / x + 8) = 0.05
 Rewriting:
 (0.8 / x + 8) = (5/100)
 Answer:
 An equation can be used to find x, the humber of gallons of water he should add is:
 (0.8 / x + 8) = (5/100) 
8 0
3 years ago
Other questions:
  • The least common multiple of 20, 24, and 45 is _____.<br> A. 30<br> B. 180<br> C. 360<br> D. 21,600
    13·1 answer
  • Evaluate ab for a = -2 3/4 and b= - 4/6
    9·1 answer
  • 12 ft equal how many inches​
    9·1 answer
  • Which equation represents a proportional relationship that has a constant of proportional equal to 4/5
    15·1 answer
  • Which of these transformations appear to be a rigid motion? <br> Please help me!!!!!
    11·2 answers
  • True of False:
    5·1 answer
  • One leg of a right triangle has length 7. The lengths of the other two sides are whole numbers. The length of the other leg is _
    12·1 answer
  • Which of the following is an equivalent equation obtained by completing the square of the expression below? x^2+6x−8=0 A (x+3)^2
    15·1 answer
  • Identify the terms in the expression 70 – (4 • 15).
    13·2 answers
  • Help please !!!!!!!!!!!!!
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!