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
TiliK225 [7]
2 years ago
15

There are seven roads that lead to the top of a hill. How many different ways are there to reach the top and come back ( you don

t have to go on the same road there and back)?
Mathematics
1 answer:
Setler [38]2 years ago
8 0

Answer:

49 different ways

Step-by-step explanation:

If there are seven roads that lead to the top, you have seven possible choices to go to the top of the hill.

Then, to come back to the start, you also have seven possible choices (seven roads), and you can pick any road.

So, if you have seven ways to go up and seven ways to go down, the number of different ways of going to the top and coming back is the product of these numbers of possible choices.

N(total) = N(up) * N(down)

N(total) = 7 * 7

N(total) = 49 different ways

Brainliest pls and tysm!

You might be interested in
The graph of the equation y = m^x passes through the point
Alexeev081 [22]

The graph of the equation y = m^x passes through the point (1, m)

<h3>Equation of a graph</h3>

Given the equation of a graph expressed as y = m^x

We need to determine the coordinate point that lies on this graph.

If x = 1, substitute into the formula to have:

y =m^1

y = m

Hence the required coordinate will be (1, m)

Learn more on equation of graph here: brainly.com/question/24894997

3 0
1 year ago
My brother is in 6th grade and needs help with his math. I tried to help but I can't find any answers on it.
In-s [12.5K]

Answer:

Question 1) 17.4

Question 2) 1.7

Question 3) 2.8

Question 4) 8.6

Step-by-step explanation:

Mean absolute deviation is the average distance between the data points from the set to the mean point of the data set. It shows the variability in data or how much the data points are spread.

method to calculate Mean absolute deviation:

a. calculate mean

b. calculate absolute deviation of each data point

c. add all the deviations

d. divide absolute deviation by number of points

mean absolute deviation = ∑lx_{i}-xl / n

The given problem has four sub-parts

Solution 1:

Mean= (78+99+90+80+55+56+102+88+60+42)/10

            =  750/10

            =  75

Mean absolute deviation= ( I 78-75 I + I 99-75 I+I 90-75 I + I 80-75 I +

                                             I 55-75 I + I 56-75 I + I 102-75 I + I 88- 75 I +

                                             I 60-75 I + I 42-75 I) /10

         =  (174)/10

        =  17.4

Solution 2:

Mean = (10+13+7+12+9+8+12+10+11+13)/10

              =  (105)/10

              = 10.5

Mean absolute deviation = ( I 10-10.5 I + I 13-10.5 I + I 7-10.5 I + I 12-10.5 I +

                                              I 9-10.5 I + I 8-10.5 I + I 12-10.5 I + I 10-10.5 I +

                                               I 11-10.5 I + I 3-10.5 I) /10

       =   17/10

       = 1.7

Solution 3:

Mean= (1+7+10+5+3+3+6+12+9+4)/10

            =  60/10

            =  6

Mean absolute deviation  = ( I 1-6 I + I 7-6 I + I 10-6 I + I 5-6 I + I 3-6 I +

                                               I 3-6 I + I 6-6 I + I 12- 6 I + I 9-6 I + I 4-6 I) /10

         = (28)/10

        =  2.8

Solution 4:

Mean= (30+46+25+45+18+25+15+32+40+24)/10

            =  300/10

            =  30

Mean absolute deviation  = ( I 30-30 I + I 46-30 I + I 25-30 I + I 45-30 I +

                                               I 18-30 I + I 25-30 I + I 15-30 I + I 32-30 I +

                                               I 40-30 I + I 24-30 I) /10

         = (86)/10

        =  8.6

!

8 0
3 years ago
Evaluate 9 ÷ 3[(18 − 10) − 22].
dlinn [17]

Answer:

-42

Step-by-step explanation:

3 0
3 years ago
A standard deck of 52 playing cards contains four of each numbered card 2–10 and four each of aces, kings, queens, and
DerKrebs [107]

Answer:

A standard deck of 52 playing cards contains four of each numbered card 2–10 and four each of aces, kings, queens, and jacks. Two cards are chosen from the deck at random.

Which expression represents the probability of drawing a king and a queen?

StartFraction (4 P 1) (3 P 1) Over 52 P 2 EndFraction

StartFraction (4 C 1) (3 C 1) Over 52 C 2 EndFraction

StartFraction (4 P 1) (4 P 1) Over 52 P 2 EndFraction

StartFraction (4 C 1) (4 C 1) Over 52 C 2 EndFraction

it is D

Step-by-step explanation:

3 0
3 years ago
I need help on this pls
tresset_1 [31]

Answer:

Hello!

1 on the left in vertical and 1 on the right is adjacent hope that helps.

5 0
2 years ago
Other questions:
  • Pls help asap...urgently help needed!!!<br>tia
    15·1 answer
  • A car travels 24 miles every half hour. how fast is it going?
    5·1 answer
  • As Jackson built a square fence around his garden, he wondered how much he would have to pay if he increased the length of each
    15·1 answer
  • I need help please and thank you
    7·1 answer
  • PLEASE HELP ASAP!!! ILL MARK BRAINLIEST!!
    14·2 answers
  • (5x2 + 2x + 11) - (7 + 4x - 2x2)
    5·2 answers
  • Jim earns $1,600 per month after taxes. He is working on his budget and had the first three categories finished. Why will he hav
    10·1 answer
  • Ronald had to drain 5,750 gallons of water out of his pool. Each day he drained 10 times fewer gallons of water than he did the
    5·2 answers
  • Find the missing length indicated<br> Please help, no links
    7·2 answers
  • X+y+(y-2)=60,1/2(x)(y-2)=120 what is x and y​
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!