a) ¿Cuántas décadas han transcurrido desde 1917 hasta 2020

Answers

Answer 1
Han transcurrido 103 décadas

Related Questions

At a zoo, 7 monkeys ate 35 bananas in one day. At
this rate how many bananas could 21 monkeys
eat in one day?



SUM! HELPPPPPPPPP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!ASAPPPP

Answers

Answer: 105

Step-by-step explanation: 35 divided by 7 = 5 , so one monkey eats 5 bananas. 21 x 5 = 105

Hope this helps!

Answer:

105 bannanas

Step-by-step explanation:

Because if 21 is 3 times more than 7 then you have to multiply 35 times 3 to get the amount of bannanas 3 times more monkeys can eat.

Have a great day!

Question 3: On a recent math quiz, 20 of the 32 students who took the
quiz used a pen and the rest used a pencil. Which of the following is the
ratio of the students who used a pen to those who used a pencil? *
5 to 3
5 to 8
8 to 5
O 13 to 8

Answers

Answer:

5 to 8

Step-by-step explanation:

bc u divide the numerator and denominator by 4

89,235 written in expanded form? (2 points)

a
8 x 10,000 + 9 x 1,000 + 2 x 100 + 3 x 10 + 5 x 1

b
8 x 10,000 + 9 x 1,000 + 2 x 100 + 3 x 10 + 5 x 5

c
8 x 100,000 + 9 x 10,000 + 2 x 1,000 + 3 x 100 + 5 x 10

d
8 x 80,000 + 9 x 9,000 + 2 x 200 + 3 x 30 + 5 x 5

Answers

A because, all the numbers multiplied by those factors equals their spot in the number

Why is pi named pi? I like pie tho.....

Answers

Answer:

it was first called "pi" in 1706 by William Jones, because pi is the first letter in the Greek word perimitros, which means "perimeter."

The sum of two numbers is 47. The greater number is 9 more than the smaller number. Which equation can be used to solve for the smaller number? x + (x + 9) = 47 x − (x + 9) = 47 x(x + 9) = 47 x(x − 9) = 47

Answers

I believe the correct answer from the choices listed above is the first option. The equation that can be used to solve the problem would be x + (x + 9) = 47.

The sum of two numbers is 47. ---> x + y = 47 where x is the smaller number and y is the larger.  

The greater number is 9 more than the smaller number.  -----> y = x + 9  

x + ( x + 9 ) = 47

Answer:

x + (x + 9) = 47

Step-by-step explanation:

This equation can be used to solve for

This equation can be used to solve forthe smaller number.

ANSWER ASAP GIVING BRAINLIEST!
A chemical reaction in a light stick causes it to give off a glowing green light. Explain why the reaction is endothermic or exothermic.

Answers

Answer:

The chemical reaction is due to chemical change in the chemicals within the light stick so it shows off color.

Step-by-step explanation:

The chemicals in the light stick interact with each other. This cause them to come together and give off a color of light.

Some one please answer

Answers

Answer:

A and D

Step-by-step explanation:

0.45 - 0.23 = 0.22

0.45(8) = 3.60

What is the base and height of this parallelogram?

Answers

I would say height is 3 and base is 2
Let me know if it was right!
Answer: base 2, height 3 i think

Please answer. Have to find what numbers make that equation true

Answers

Answer:

(x+8y)(x-8y)

Step-by-step explanation:

8 squared is 64 and so is y for y^2.

One positive and a negative turns into a negative, so that's why it's only one.

can u pls help me with this question ​

Answers

Answer:

A is correct

Step-by-step explanation:

Answer:

it's A -2/9

Step-by-step explanation:

it's A

it's A

What is the answer to 5/8 + 1/2

Answers

Answer:

9/8 or 1 1/8

Step-by-step explanation:

Answer:

9/8 or  1  1/8

Step-by-step explanation:

find common denominator, its 8 for this problem so put [tex]\frac{1}{2} = \frac{4}{8}[/tex]

[tex]\frac{5}{8} +\frac{4}{8} = \frac{9}{8}[/tex]

Here is a list of numbers 15 6 8 7 12 1 5 8 4 3 state the median

Answers

Answer:

The median is 6.5

A credit card offer comes in the mail with the bold print "0% A.P.R. for New Accounts." Which important piece of information should you find before thinking about signing up?

Answers

"What is the A.P.R. after the introductory period ?" you find before thinking about signing up.

An introductory APR seems to be a special rate of interest offered by credit card providers to prospective clients for something like a predetermined period of months following opening a bank account.Numerous credit cards provide promotional APRs upon expenditures buying products, debt transfers, or sometimes both. Such rate was considerably cheaper than the estimated APR, typically as minimal as 0%.

Thus the response above is right.

Learn more about credit cards here:

https://brainly.com/question/14829559

c) The first five terms of a sequence are shown below; 13, 9, 5, 1, -3 . Find the nth term of this sequence​

Answers

Answer:

-7

Step-by-step explanation:

because they are going down by 4. So just subtract 4.

Carol bought a coloring book. It is 11 inches long and 8 inches wide. What is the diagonal length of the book?

Answers

Answer:

13.6 inches

Step-by-step explanation:

We can use Pythagorean theorem: [tex]c=\sqrt{a^{2} +b^{2} }[/tex]

Let c be the diagonal length, a for length, and b for width.

Substitute the values.

[tex]c=\sqrt{11^{2}+8^{2} }[/tex]

c=13.6 inches

(X+y)^16 what is the answer


Answers

Use the Binomial Theorem to expand.

Which expression is
equivalent to 25x + 12 ?

Answers

Answer:

Step-by-step explanation:

What are the choices?

Subtract 8 from me. Then add 21. If you divide me by 4 and add 21 you get 29. What number am I?

Answers

Answer:

19

Step-by-step explanation:

x - 8 + 21 ÷ 4 + 21 = 29

x - 8 + 21 ÷ 4 = 29 - 21

                     = 8

x - 8 + 21 = 8 x 4

              = 32

x - 8 = 32 - 21

       = 11

x = 11 + 8

  = 19

Therefore the number is 19. A bit confusing to me at first but I solved it :)

2. Select the solution for the system of linear equations y = 3x + 4 and y = x + 2.
A. (-1,1)
B. (1,-1
C. (-1,-1)
D. (1,1)

Answers

Brainliest please I’m tryna rank up

HELP 50 POINTS

Could I get like an explanation so I know how to do this since its 50 points?

Answers

Answer: #2

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

The accompanying data represent the miles per gallon of a random sample of cars with a three-cylinder, 1.0 liter

engine.


32.7, 35.7, 38.0, 38.7, 40.1, 42.3, 34.3, 36.2, 38.1, 39.0, 40.6, 42.9, 34.5, 37.4, 38.3, 39.4, 41.4, 43.4, 35.3, 37.6, 38.5, 39.7, 41.7, 48.9





(a) Compute the z-score corresponding to the individual who obtained 38.1 miles per gallon. Interpret this result.


The z-score corresponding to the individual is __ and indicated the date value is __ standard decoration(s) __(below/above) the __(mean/median)

(b) Determine the quartiles.

(c) Compute and interpret the interquartile range, IQR.

(d) Determine the lower and upper fences. Are there any outliers?

Answers

Answer:

A) Z = -0.24

We can interpret this as the z-score corresponding to the individual who obtained 38. 1 miles per gallon is -0.24.

B) Q1 = 36.8 and Q3 = 41

C)IQR = 4.2

This means that the distance between the first and third quartile is 4.2

D) LF = 30.5 and UF = 47.3

the only outlier is 48.9 which is more than UF

Step-by-step explanation:

We are given the data representing the miles per gallon of a random sample of cars with a three-cylinder as;

32.7, 35.7, 38.0, 38.7, 40.1, 42.3, 34.3, 36.2, 38.1, 39.0, 40.6, 42.9, 34.5, 37.4, 38.3, 39.4, 41.4, 43.4, 35.3, 37.6, 38.5, 39.7, 41.7, 48.9

Sum of data is;

ΣX = 32.7 + 35.7 + 38.0 + 38.7 + 40.1 + 42.3 + 34.3 + 36.2 + 38.1 + 39.0 + 40.6 + 42.9 + 34.5 + 37.4 + 38.3 + 39.4 + 41.4 + 43.4 + 35.3 + 37.6 + 38.5 + 39.7 + 41.7 + 48.9 = 934.7

Formula for mean is;

μ = ΣX/n

μ = 934.7/24

μ = 38.95

Formula for sample standard deviation of is;

s = √[(1/(n - 1))Σ(X - μ)²]

From online calculator, we have a value of;

s = 3.505

A) Formula for z-score is;

Z = (x - μ)/s

We are given x = 38.1

Thus;

Z = (38.1 - 38.95)/3.505

Z = -0.24

We can interpret this as the z-score corresponding to the individual who obtained 38. 1 miles per gallon is -0.24.

B) Arranging the set of given values in ascending order, we have;

32.7, 34.3, 34.5, 35.3, 35.7, 36.2, 37.4, 37.6, 38.0, 38.1, 38.3, 38.5, 38.7, 39.0, 39.4, 39.7, 40.1, 40.6, 41.4, 41.7, 42.3, 42.9, 43.4, 48.9

Number of data; n = 24

First quartile is;

Q1 = ((n + 1)/4)th = ((24 + 1)/4)th = 25/4 = 6.25th term

Thus, we will find the average of the 6th and 7th term;

Q1 = (36.2 + 37.4)/2

Q1 = 36.8

Similarly;

Q3 = ¾(n + 1)th = ¾(24 + 1)

Q3 = ¾ × 25 = 18.75th term

Thus, we will find the average of the 18th and 19th term.

Q3 = (40.6 + 41.4)/2

Q3 = 41

C) Formula for inter quartile range is;

IQR = Q3 - Q1

IQR = 41 - 36.8

IQR = 4.2

This means that the distance between the first and third quartile is 4.2

D) Formula for lower fence is;

LF = Q1 - (1.5 × IQR)

LF = 36.8 - (1.5 × 4.2)

LF = 30.5

Formula for upper fence is;

UF = Q3 + (1.5 × IQR)

UF = 41 + (1.5 × 4.2)

UF = 47.3

Now, an outlier will be any values in the given set less than LF or more than UF.

From the given set, the only outlier is 48.9 which is more than UF

A plane flies at a steady rate of 40 mph while a second plane flies at a steady rate of 100 mph. The planes are 200 miles apart and fly directly toward each other. In how many hours will they meet?
plz help
times almost up

Answers

Answer:

The time the two planes will meet is 1.43 hours

Step-by-step explanation:

Given;

speed of the first plane in positive direction, = 40 mph

speed of the second plane in negative direction(opposite direction) = -100 mph

distance between the two planes = 200 miles

Let the time the two planes will meet = t

the position of the first plane at this time "t" = 40t

the position of the second plane at this time "t" = -100t

(40t)>--------------------------------<(-100t), this space between them is 200 miles.

Thus, the difference in the distance they traveled before meeting should be equal to 200 miles.

40t - (-100t) = 200

40t + 100t = 200

140t = 200

t = 200 / 140

t = 1.43 hours

Therefore, the time the two planes will meet is 1.43 hours

Let z = 19 + i and w = 4 + 10i.

What is the first step in determining zw?

Replace i2 with –1.
Multiply z by the conjugate of w.
Apply the distributive property or FOIL.
Combine the corresponding real and imaginary parts.

EDGE

Answers

In the first step apply the distributive property or FOIL to find zw. Option C is correct.

Given that,
Let z = 19 + i and w = 4 + 10i.
The first step is to be determined.

What is a complex number?

The number that constitute of real and imaginary numbers are called a complex numbers. Complex number is represents as z = a + ib, where a = real number and bi = imaginary number

z = 19 + i and w = 4 + 10i
in order to find the product of complex numbers z and w following are the steps,
z.w =   ( 19 + i )( 4 + 10i )

Step ⇒ 1
Applying distributive law,
   z.w = 19 * ( 4 + 10i ) + i * ( 4 + 10i )
Step ⇒ 2
opening the parenthesis,
z.w = 19 * 4 + 19*10i + i * 4 + i * 10i
similarly, further steps are
z.w = 76 + 190i +4i + 10i²
since i² = -1
z.w = 76 + 194i - 10
z.w = 66 + 194i

Thus, in the first step apply the distributive property or FOIL to find zw. Option C is correct.


Learn more about complex numbers here: https://brainly.com/question/28007020

#SPJ2

Answer:

C

Step-by-step explanation:

Apply the distributive property of FOIL

3. (05.05)
Which of the following inequalities matches the graph? (1 point)
x<2
y>2
x<2
x>2

Answers

Answer:

The inequality x>2 matches the graph.

Step-by-step explanation:

From the graph, it is clear that the shaded graph is heading towards the +ve infinity from the x > 2.

If the inequality includes < or >, we graph the equation as a dotted line.

From the graph, the dotted line indicates that x=2 is not included in the solution of the inequality.

so the interval of the domain of the inequality is: (2, ∞)

Therefore, the inequality x>2 matches the graph.

13/15 X 8 give your answer as a mixed number

Answers

Answer:

6.93 so in a mixed number is 693/100

HELP ME PLEASE!!! A Kite flying in the air has a 12 feet line attached to it. It's line is pulled and cast an 11 feet shadow. Find the height of the kite. If necessary round your answer to the nearest 10th

Answers

Step-by-step explanation:

By Pythagoras' theorem,

12^2 = 11^2 + height^2

height = ±√12^2 - 11^2 (rej -ve value since height > 0)

height = 16.279 (5sf) = 16.3 (nearest tenth place)

Topic: Pythagoras theorem

If you like to venture further, do check out my insta (learntionary) where I regularly post useful math tips! Thank you!

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Question Help
As part of a research project, the blood pressures of 2000 patients in a hospital are recorded. The systolic blood pressures (given in millimeters) have
an approximately normal distribution with mean y = 122 and standard deviation o = 15. Use the 68-95-99.7 rule to complete the following.
(a) Estimate the number of patients whose blood pressure was between 92 and 167 millimeters.
(b) Estimate the number of patients whose blood pressure was between 92 and 137 millimeters.

Answers

17.4567778844444456899776654

these bugs are not drawn up to scale what does that mean

Answers

It means that they do not have the proper proportions that they normally would in real life. The drawing might be larger or smaller than the bugs but even then it might have the proper proportions, it is only when it has incorrect proportion sizes, that is is considered "not to scale"

I hope this helps :)

Answer:

That means if you measure the bugs from the chart/paper/assignment, the real bugs aren't that size.

Hope that helps and have a great day!

(If you have any questions let me know)

transversal t cuts parallel lines r and s which angles must be congruent to 2?

Answers

r and s are parallel lines so the angle 2 and 6 are called, corresponding angles 2 and 3 are opposite angle but 3 and 7 are also interior corresponding angles so 7 and 3 are congruent, and so are 7 and 2 .

the angles must be congruent to 2 are 3, 6 , 7

Answer:

r and s are parallel lines so the angle 2 and 6 are called, corresponding angles 2 and 3 are opposite angle but 3 and 7 are also interior corresponding angles so 7 and 3 are congruent, and so are 7 and 2 .

the angles must be congruent to 2 are 3, 6 , 7

Step-by-step explanation:

g One card is selected randomly from a standard​ 52-card deck. a. What is the probability of drawing a ​

Answers

Answer:

Probability [Getting a red card] = 1/2

Step-by-step explanation:

Given:

Total number of cards = 52

Find:

Probability [Getting a red card]

Computation:

Total number of red cards = 26

Probability [Getting a red card] = 26/52

Probability [Getting a red card] = 1/2

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