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
Harlamova29_29 [7]
4 years ago
13

What number is needed to complete the pattern below 66 73 13 21 52 _1020

Mathematics
2 answers:
frosja888 [35]4 years ago
7 0

we have

66,73, 13, 21, 52, x, 10, 20

let

a1=66,a2=73,a3=13,a4=21,a5=52,a6=x,a7=10,a8=20

we know that

a2-a1=73-66\\ a2-a1=7\\ a2=a1+7

a4-a3=21-13\\ a4-a3=8\\ a4=a3+8

a6-a5=x-52\\  a6=a5+(x-52)

a8-a7=20-10\\ a8-a7=10\\ a8=a7+10

Basing on this pattern the term (x-52) should be 9

x-52=9\\ x=9+52\\ x=61

therefore

the answer is

the number needed to complete the pattern is 61

tiny-mole [99]4 years ago
4 0
The answer is 61. First is knowing the pattern. By subtracting the second number with the first then fourth number with the fifth and so on, you get.

73 minus 66 equals 7.
21 minus 13 equals 8.
xx minus 52 equals x.
20 minus 10 equals 10.

Basing on this pattern x should be 9 and you get the number xx by adding 52 and 9 which is 61.
You might be interested in
Mark records his science scores in each monthly assessment over a period of 5 months. In the first assessment he scores 76%. In
katovenus [111]

d. both a relation and a function:

Given:

Mark records his science scores in each monthly assessment over a period of 5 months. In the first assessment he scores 76%. In the second assessment he scores 73%. After that, his scores keep increasing by 2% in every assessment.

x represents the number of assessments since he starts recording and y represents the scores in each assessment.

In order for a relation to be a function the association has to be unambiguous that means that for a given input only one output can exist.If an input can have two or more outputs then you cannot determine which is the correct output for that input.

In the given situation:

x is the input that is number of assessments since mark starts recording the scores so there is only one assessment no repeating.so there is only one output.

Hence the relation is a function.

Learn more about the function here:

brainly.com/question/5975436

#SPJ1

4 0
1 year ago
A professor wants to know how undergraduate students at X University feel about food services on campus, in general. She obtains
hammer [34]

Answer:

15000

Step-by-step explanation:

Given that a professor wants to know how undergraduate students at X University feel about food services on campus, in general. She obtains a list of email addresses of all 15,000 registered undergraduates from the registrar’s office and mails a questionnaire to 300 students selected at random.

Only 150 questionnaires are returned.

So the sample size changed to 150. But population is the number of registered undergraduates which do not change.

Population size = 15000

8 0
3 years ago
30 points Help ASAP How do division properties help you evaluate expressions? Drag a word or number to the box to correctly comp
yKpoI14uk [10]

Answer:

Numerator , 0

Anything divided by 0 is always 0

Brainliest Pls

3 0
3 years ago
Hey i really need help with this. thank you:))
balandron [24]

Given:

L=2\dfrac{1}{2} ft and W=3\dfrac{2}{5} ft.

P=2L+2W

To find:

The value of P.

Solution:

We have,

P=2L+2W

Substituting L=2\dfrac{1}{2} and W=3\dfrac{2}{5}, we get

P=2\times 2\dfrac{1}{2}+2\times 3\dfrac{2}{5}

P=2\times \dfrac{2(2)+1}{2}+2\times \dfrac{3(5)+2}{5}

P=2\times \dfrac{5}{2}+2\times \dfrac{17}{5}

P=5+\dfrac{34}{5}

Taking LCM, we get

P=\dfrac{5(5)+34}{5}

P=\dfrac{25+34}{5}

P=\dfrac{59}{5}

P=11\dfrac{4}{5}

Therefore, the value of P is 11\dfrac{4}{5} ft.

7 0
3 years ago
Graph the linear equation. Find three points that solve the equation, then plot on the graph. -3y=x-6
nata0808 [166]

Answer:

Step-by-step explanation:                               x - 6

The given equation can be re-written as y = ---------                              

                                                                             -3

Arbitrarily choose x = 0.  Then:

      x - 6         0-6

y = --------- = ----------- = 2, so (0, 2) is a point on the graph which is also the                              

          -3            -3                                                                  y-intercept

Arbitrarily choose x = 6.  Then y = 0, and (6, 0) is another point on the graph                                    

                                                              which happens to be the x-intercept

arbitrarily choose x = 12.  Then y = (12 - 6) / (-3) = -2.  Then  (12, -2) is            

                                                                                  another point on the

                                                                                  graph.

Plot (12, -2), (6, 0) and (0, 2).  Draw a line through these three points.

6 0
4 years ago
Other questions:
  • -x - 2 = -44 + 5 Not sure how to do this
    6·1 answer
  • Is triangle A'B'C' a dilation of triangle ABC? Explain.
    10·2 answers
  • I need help please thank you
    12·1 answer
  • Use the inverse sine ratio when you know the length of a leg opposite the required angle. True or false
    14·1 answer
  • Suppose f and g are two functions defined on some neighbourhood of c such that lim f(x)=l and lim g(x)=m.Show that lim f(x)+g(x)
    12·1 answer
  • What is 3/7 in simplest form
    10·2 answers
  • How to solve <br><br> log 5 + 2log 2
    10·1 answer
  • what is the equation in point-slope form of the line passing through (4, 0) and (2, 6)? y = 4x − 2 y = 2x − 4 y = −3(x − 4) y =
    15·1 answer
  • Slope= 2; (14, 33)<br><br> Equation:______
    11·1 answer
  • What is the constant of proportionality in the equation 3y=2x
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!