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
algol13
3 years ago
5

Input: 15 , Output: 5, Input: 9, Output: -1. What would be the rule now ?

Mathematics
1 answer:
Alex_Xolod [135]3 years ago
8 0

Answer:

Subtract 10

Step-by-step explanation:

The first option, "take the ones digit", is obviously incorrect because the ones digit of 9 is not -1. The second one is incorrect because you are dividing by 2 and then adding 5. Dividing odd numbers by 2 will give you a decimal and a decimal plus an integer (the integer is 5 in this case) will still be a decimal (provided that the decimal is not an integer as well). However, both of the outputs are integers, so we know that the second one is wrong. The third one is wrong as well because 9 / 3 = 3, not -1. The last one is correct because 15 - 10 = 5 and 9 - 10 = -1.

You might be interested in
Find the measure of each side of this triangles. Answer in exact form. ​ Find x and y
Firdavs [7]

Answer:

x = 24/√3

4√3 = y

Step-by-step explanation:

We are given that this is a right triangle as well as two angles and a side.

Given that the angles in a triangle add up to 180 degrees, and a right angle is 90 degrees, we can say that the missing angle is equal to

(180-90-30)  = 60 degrees

Next, given sohcahtoa, we can say that

sin(30) = opposite/hypotenuse = y/x

cos(30) = adjacent/hypotenuse = 12/x

tan(30) = opposite/adjacent = y/12

We want to only have one variable per equation so we can solve for the variable, so we can use

cos(30) = 12/x and tan(30) = y/12

Starting with cos(30) = 12/x, we can multiply both sides by x to remove the denominator to get

cos(30) * x = 12, and divide both sides by cos(30) to isolate the x and get

x = 12/cos(30). Next, cos(30) = √3/2, so we have

x = 12/(√3/2)

x = (12/1) / (√3/2)

x = (12/1) * (2/√3)

x = 24/√3

For y, we have

tan(30) = y/12

multiply both sides by 12 to isolate the y and remove the denominator

tan(30) * 12  = y

√3/3 * 12 = y

√3 * 4 = y

4√3 = y

4 0
3 years ago
Jennifer left her house at 6:45 AM. It took her eight minutes 45 seconds to walk to the bus stop. She waited 3 3/4 Minutes for t
Kisachek [45]

Answer:

Step-by-step explanation:

7:05am

8 0
3 years ago
If two lines intersect, then their intersection is exactly one point. ...draw a sketch to illustrate
Lostsunrise [7]
Just sketch two lines crossing each other like a street intersection.
4 0
3 years ago
Complete the table for the given rule. Rule: y=x-1/4
mash [69]

Answer:

i don't see the question, but i can help you

Step-by-step explanation:

8 0
3 years ago
In a bag of 100 marbles comprised of many colors, 25 are blue. suppose marbles are selected at random.
satela [25.4K]

Solution: The number of ways we can arrange 3 blue marbles if a set of 5 marbles is selected is:

\binom{5}{3}=\frac{5!}{(5-3)!3!}

                          =\frac{120}{2 \times 6}

                          =\frac{120}{12}=10

Therefore, there are 10 ways we could arrange 3 blue marbles.

3 0
3 years ago
Other questions:
  • An open box is formed by cutting squares with side lengths of 3 inches from each corner of a square piece of paper. what is a si
    12·1 answer
  • Which of the following is a logarithmic function?<br>y = log3x<br>Y=3^x<br>y = x + 3<br>y= x^3​
    10·2 answers
  • Rita and Bernie both play the same online game. In today's play, Rita earns 6 points 3 times and loses 4 points twice.
    11·1 answer
  • Writing Trigonometric Ratios -
    12·2 answers
  • -5x-4=? a.1 b.-1 c.20 d.-20
    7·1 answer
  • A physics lab group was conducting an experiment to determine the length of a spring when different objects of varying weight we
    15·2 answers
  • There are 17 kids who want to have a turn on the merry-go round. If 9 kids, at most, can ride the merry-go round at one time, ho
    9·2 answers
  • Colin invests £5000 into his bank account.
    9·1 answer
  • Find the value of x
    12·2 answers
  • On the last chemistry exams a student scored 83, 89, and 92. What score must the student earn on the next exam to have an averag
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!