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
elena55 [62]
3 years ago
7

1/1×3+1/2×4+1/3×5 +...+1/18×20=Please, help me. ❣️​

Mathematics
1 answer:
Sedaia [141]3 years ago
6 0

Answer:3.1944

Step-by-step explanation:

(1÷1×3)+1÷(2×4)+1÷(3×5)+1÷(18×20)

You might be interested in
I have to explained it in words pls help
lys-0071 [83]

9514 1404 393

Answer:

  • slope: cost per mile
  • y-intercept: fixed base cost

Step-by-step explanation:

The y-intercept is the value of y when x=0. The problem statement tells you that x is the number of miles driven, and y is the rental cost.

When the number of miles driven is zero, the rental cost is ...

  y = 2.25×0 +70

  y = 70

The cost of renting the truck is $70 when it isn't driven anywhere. The y-intercept ($70) is the basic, fixed cost of truck rental.

__

If x=1 (1 mile driven), then 2.25 is added to the cost of the truck rental. The slope (2.25) is the cost per mile driven. (That mileage cost is added to the basic rental cost.)

6 0
2 years ago
I will mark brainlest, please help me! I'm just so confused.
zimovet [89]

Answer:

every new hour, the previous amount of bacteria is multiplied by four.

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Solve the equation below for x.
Oksi-84 [34.3K]
Answer: X=290/13.....
6 0
3 years ago
Read 2 more answers
What are the values for y when x is 2, 4, and 6?<br> y = 20x + 7
Mrrafil [7]
Wait what’s the value of x?
8 0
1 year ago
Read 2 more answers
Find the area of the shaded region. The graph to the right depicts IQ scores of adults, and those scores are normally distribute
balu736 [363]

Answer:

The area of the shaded region is 0.9082.

Step-by-step explanation:

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value, which is the area of the shaded region, is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 100, \sigma = 15, X = 120

Area of the shaded region:

pvalue of Z

Z = \frac{X - \mu}{\sigma}

Z = \frac{120 - 100}{15}

Z = 1.33

Z = 1.33 has a pvalue of 0.9082

So

The area of the shaded region is 0.9082.

4 0
3 years ago
Other questions:
  • Patti green and her husband are purchasing a condominium for $123,000. They have $15,000 for a down payment. What is the amount
    15·1 answer
  • Simplify 15.6 divided by negative 3..<br><br> −5.6<br><br> 5.6<br><br> −5.2<br><br> 5.2
    8·2 answers
  • Examine the two-step equation.
    14·1 answer
  • HELP ASAP PLEASE!!! Explain how you will benefit most from improving your math skills.
    10·1 answer
  • Please help. I know the second one has a right angle so I could solve that but the other two I'm so confused haha. Please help :
    13·1 answer
  • Solve: x=4+(4x-4)1/2
    15·2 answers
  • Find the area of a rectangle with dimensions 3/8 ft x 3/4 ft.
    13·1 answer
  • Tammy received a $70 gift card for a coffee store. She used it in buying some coffee that cost $8.41 per pound. After buying the
    14·1 answer
  • PLEASE ANSWERRRRRRRRRRRRR
    8·1 answer
  • Lisa is currently taking physics as one of her electives in school. her grade at the end of the year is determined by the averag
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!