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
NeX [460]
3 years ago
14

HELP!! I NEED THIS QUICKLY

Mathematics
1 answer:
Elza [17]3 years ago
6 0

Answer:

A and D

Step-by-step explanation:

We are given that

(3/4,2/3),(1/4,1),(1,1/2) and (1/2,1)

x_1=\frac{3}{4}

y_1=\frac{2}{3}

x_2=\frac{1}{4},y_2=1

x_3=1,y_3=\frac{1}{2}

x_4=\frac{1}{2},y_4=1

k=\frac{1}{2}

Direct proportion:

\frac{x}{y}=k

Inverse proportion:xy=k

\frac{x_1}{y_1}=\frac{3}{4}\times \frac{3}{2}=\frac{9}{8}\neq \frac{1}{2}

Therefore, it is not in direct proportion.

\frac{1}{4\times 2}=\frac{1}{8}\neq\frac{1}{2}

\frac{1}{\frac{1}{2}}=2\neq \frac{1}{2}

x_1y_1=\frac{3}{4}\times \frac{2}{3}=\frac{1}{2}

x_2y_2=\frac{1}{4}\times 2=\frac{1}{2}

x_3y_3=1\times \frac{1}{2}=\frac{1}{2}

x_4y_4=\frac{1}{2}\times 1=\frac{1}{2}

Therefore, xy=k=\frac{1}{2}

Hence, the given points form an inverse variation .

xy=\frac{1}{2}

y=\frac{1}{2x}

Option A and D is true.

You might be interested in
Beverley has quarters and dimes in her pocket. She has 21 coins with a total value of $3.00. How many of each type of coin does
kondaur [170]

Answer:

Step-by-step explanation:

If all 21 coins were dimes, she'd have $2.10. But she has 90 more cents than that. Now for each coin that's a quarter, not a dime, she has 15 cents more. 90/15= 6. So there are 6 quarters, and 21-6 = 15 dimes.

Now we do it backwards to see if it's right. 6 quarters is $1.50, 15 dimes is $1.50, add those together and you get $3. So it's right. 6 quarters, 15 dimes.

6 0
2 years ago
Mrs. Chambers wrote a check to Lana Stewart for babysitting services in the amount of $24.50. Write the check's amount in word f
Alenkasestr [34]

Answer:

twenty four dollars and 50/100

5 0
2 years ago
Help me with this please
nalin [4]
This is incorrect. X can be negative, making the expression on the left less than 0. If x were -10, then:
3 x -10 + 1 > 0
-30 + 1 > 0
-29 > 0
Is NOT true.
5 0
3 years ago
Is 5 1/2 the same as 5 1/2
crimeas [40]
Answer: B- no
Hope this helped
5 0
2 years ago
Read 2 more answers
1 The legs of a triangle are 6 cm and 8 cm. The hypotenuse is 14 cm. Is it a right triangle?
Vitek1552 [10]

Answer:

this is not a right triangle

Step-by-step explanation:

^  = squared

The formula forthe Pythagorean theorem is    a^+ b^   = c^

If this is a right triangle this must be true

6^ +    8^   =   14^

36 + 64 =  196

100  is not equal to 196

So this is not a right triangle

3 0
3 years ago
Other questions:
  • How would you solve this by elimination?
    10·1 answer
  • What two ratios are equivalent to 5:9
    15·2 answers
  • Which of the following options have the same value as 62% of 45?
    6·1 answer
  • Plz help will give brainiest to the first person who answers this correctly plz helpppp!!!!
    15·1 answer
  • Compare the outliers and interquartile ranges (IQRs) for the data sets. Which
    6·1 answer
  • The expression 17x is equivalent to the expression x 7.
    8·1 answer
  • How do you write 199.4% as a decimal?
    11·2 answers
  • Mr. Fry is building a fence around his pool.
    6·2 answers
  • E) Write
    10·1 answer
  • ✓ 1 N 3 4 5 6 Conv A rectangular field is 300 meters long and 250 meters wide. What is the area of the field in square kilometer
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!