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
Savatey [412]
3 years ago
5

Simplify the expression. 13 + 6(-3) + (-23)

Mathematics
2 answers:
Galina-37 [17]3 years ago
6 0
13-18-23=-28


I know this because you combine like germs
Illusion [34]3 years ago
4 0

Answer:

-28

Step-by-step explanation:

You might be interested in
Lilys car has a fuel efficiency of 8 liters per 100 kilometers.
zavuch27 [327]

100 : 8 = 12.5

12.5 Km per liter is your answer

8 0
4 years ago
Read 2 more answers
Three geometric progression's P, Q, and R, are such that there sums to infinity are the first three terms respectively of an ari
madam [21]
S= a(1-r ⁿ) /(1-r) & when r is < 1 & n →∞, the sum becomes S= a/(1-r)

Progression P is 2,1, 1/2,1/4,.. ==> r = 1/2
Sum of P when  n--> ∞ = 2/(1-1/2) ==> S =4

Progression Q is 3,1,1/3,1/9,....==> r = 1/3
Sum of Q when  n--> ∞ = 3/(1-1/3) ==> S =4.5

GIVEN THAT 4, 9/2 & X (to be calculated later is a geometric Progression, hence 9/2 - 4 = 0.5 =d (common difference , so X = 4.5+0.5 & X = 5

Sum of R =5 Then => 5=  4 /(1-r)  & r=1/5
Then the sum of R = 4/(1-1/5) ==> S of R =5



3 0
4 years ago
1. Find the mean, median, and mode of the data set.
nikklg [1K]
1. The data are
<span>75, 38, 43, 120, 65, 48, 52
Adding them and dividing by the number of data gives the mean which is 63.
Arranging them from lowest to highest and taking the middle data gives the median which is 52.
Since no data is repeated, this means that there is no mode.
The answer is
</span><span>D) mean: 63, median: 52, no mode

2.The answer is
A) mean

3. The realistic data to represent the weight of books is
A) mean </span>
8 0
3 years ago
Read 2 more answers
In the diagram below, AB is parallel to CD. What is the value of y?
timofeeve [1]

Answer:

b. 30

Step-by-step explanation:

7 0
4 years ago
Read 2 more answers
What is the completely factored form of this polynomial? 2x5 + 12x3 − 54x
Cloud [144]

Answer:

2x(x^2-3)(x^2+9)

Step-by-step explanation:

Given polynomial:

2x^5+12x^3-54x

Factor out the common term 2x:

\implies 2x(x^4+6x^2-27)

To factor the trinomial x^4+6x^2-27:

\textsf{Let }u=x^2 \implies u^2+6u-27

Factor the quadratic by finding two numbers that multiply to -27 and sum to 6:  9 and -3

Rewrite the middle term as the sum of these two numbers:

\implies u^2+9u-3u-27

Factorize the first two terms and the last two terms separately:

\implies u(u+9)-3(u+9)

Factor out the common term (u + 9):

\implies (u-3)(u+9)

Substitute back u=x^2:

\implies (x^2-3)(x^2+9)

Therefore, the factored form of the given polynomial is:

\implies 2x(x^2-3)(x^2+9)

3 0
3 years ago
Read 2 more answers
Other questions:
  • The Kingda Ka roller coaster is 456 ft tall. If you are at the top of the roller coaster and your friend is a horizontal distanc
    11·1 answer
  • What is the variance of the data set?
    8·1 answer
  • The population of a colony of mosquitoes obeys the law of uninhibited growth. If there are 1000 mosquitoes initially and there a
    9·1 answer
  • Leslie has two cups containing different-colored marbles . The first cup contains 7 pink marbles and 3 blue marbles . The second
    7·1 answer
  • The volume of a cone with a height of 6 cm is 8pie cubic centimeters. Which expression can be used to find r, the radius of the
    10·2 answers
  • Is -¼ + 2 ¼y + 2 - y equivalent to y + 2 ?
    8·1 answer
  • 3 x 5 x 5 x5 x5 x 5 x5 x5
    6·1 answer
  • A freezer's temperature is decreasing at a rate of 2° F per hour. When the temperature was first measured, it was 38° F. Write a
    13·1 answer
  • A hair stylist knows that 87% of her customers get a haircut and 40% get their hair colored on a regular basis. Of the customers
    9·1 answer
  • Eshal is ordering lunch for himself and his friends. He orders $4 worth of cheeseburgers, $7 worth of fries, $5 worth of chicken
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!