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
Stels [109]
2 years ago
5

1+4 = 5 2+5 = 12 3+6 = 19 8+11 = ?

Mathematics
1 answer:
s344n2d4d5 [400]2 years ago
3 0

1+4=5

2+5=7

5+7=12

3+6=9

12+9=21

I do not see21 up here so please cheek your question again or please change the 19 to a 21

You might be interested in
What is 2.o85 x 10*6 in standard dorm
RSB [31]
The answer to the question is 2,085,000
8 0
2 years ago
How do I simplify the following to "a+bi" form: (1+2i)^3
damaskus [11]

Answer:

Expand it.

(1+2i)^3 is equal to (1+2i)(1+2i)(1+2i).

Multiply everything out (being sure to multiply <em>every</em> term. (1+2i) * (1+2i) = 1+2i+2i+4i^2.

i is the square root of negative one, so i^2 is just -1. 1+2i+2i-4 is what you get from the first two, so now simplify that:

1-4 + 2i+2i = (-3+4i) and now multiply that by (1+2i):

(-3+4i) * (1+2i) = -3 - 6i +4i +8i^2.

Simplify again, and the answer is: -11-2i

Step-by-step explanation:

I hope this helps - really my only tip is don't spend time thinking about what i is, that just hurts your brain. Just remember that i^2 is equal to negative one, and treat it like regular multiplication and you will be fine.

7 0
1 year ago
The perimeterhof a rectangle is 48 inches. The rectangle is twice as long as it is wide. What is the length of the rectangle?
den301095 [7]

Answer: B: 16 inches

Step-by-step explanation: dont got one

im in seventh grade :)

6 0
3 years ago
PLSSS HELP it’s half my grade
Marina86 [1]

The units are always squared.

The area can be found when given the diameter by first finding the radius.

Circumference can be used to find area.

4 0
2 years ago
Which are the better statistics to use to compare the penguin heights?
frozen [14]

Answer:

The correct options are A and B.

Step-by-step explanation:

The Penguin Heights at City view Zoo (in cm) is:

S = {35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45}

Compute the mean and median of the data:

\text{Mean}=\frac{1}{n}\sum X\\\\=\frac{1}{11}\times [35+36+37+38+39+40+41+42+43+44+45]\\\\=40

\text{Median}=[\frac{n+1}{2}]^{th}obs.\\\\=[\frac{11+1}{2}]^{th}obs.\\\\=6^{th}obs.\\\\=40

The mean and median are same.

Tis implies that the height of penguins are normally distributed.

So, either the mean or median could be the best measure of center.

Standard deviation is one of the measure of dispersion or spread of a dataset from the average value of the dataset. The standard deviation measures the absolute variability of the distribution of values.

The higher the spread or variability in the data set, the greater is the standard deviation value and thus greater will be the magnitude of the deviance of the value from their average.

Thus, the correct options are A and B.

3 0
3 years ago
Other questions:
  • A frozen food company puts 3.6 ounces of mashed potatoes in each meal. How many ounces will be put into 4 meals?
    12·1 answer
  • in sound and harmonics, the frequency of a vibrating string varies inversely to its length. A guitar string 20 inches long vibra
    7·1 answer
  • I have 20 dollars, I want to split it between 3 people? How much would each person get if they got the same equal amount?
    5·2 answers
  • Which sets of numbers are closed under subtraction?
    5·2 answers
  • If you are a driver under 21 with a breath or blood alcohol level of .05 or higher, what will you be required to do
    13·1 answer
  • Solve the exponential equation <br> 1/16=64^4x-3
    12·2 answers
  • How many roots does this graph have ?
    5·1 answer
  • The price of Stock A at 9 A.M. was​ $15.75. Since​ then, the price has been increasing at the rate of​ $0.05 per hour. At​ noon,
    13·1 answer
  • PLEASEEEEE HELPPPPP MEEEEEE ASAAPPPPPPP!!!!!!!!!!!!!!!
    14·1 answer
  • At a football game, 73% of people attending were supporting the home team, while
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!