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
Svet_ta [14]
3 years ago
10

Select all that apply.

Mathematics
2 answers:
Ad libitum [116K]3 years ago
4 0

Answer:

  • Options 1 and 3 are direct variation

Step-by-step explanation:

<u>Direct variation is:</u>

  • y = kx

<u>Options:</u>

1.

  • y = -x, k = -1, yes

2.

  • y = 2x + 3, not a direct variation, no

3.

<u>Try the input/output to determine the direct variation:</u>

  • 4 = 3k
  • k = 4/3

<u>Verify the other pairs:</u>

  • x = 6, y = 6(4/3) = 8
  • x = 9, y = 9(4/3) = 12
  • x = 12, y = 12(4/3) = 16
  • x = 15, y = 15(4/3) = 20

This is also a direct variation

Ulleksa [173]3 years ago
3 0

Answer:

1 and 3

Step-by-step explanation:

You might be interested in
Rewrite 1−2 sin ^2 (22.5∘) using a double-angle identity.
attashe74 [19]
Using the identity :

Cos (2a) = 1-2 Sin^2(a)

Therefore :<span>1−2 sin ^2 (22.5∘) = Cos(2a)
                                                = Cos (2 * 22.5) = Cos 45</span>
3 0
4 years ago
music store bought a CD set at a cost of ​$10. When the store sold the CD​ set, the percent markup was 10​%. Find the selling pr
dolphi86 [110]

Answer:

11

Step-by-step explanation:

10 percent of 10 is 1 so add that to 10 and you have your price

7 0
3 years ago
Please help!!! Will mark brainliest answer if correct!!!! 
AlekseyPX

Answer:

x=4 and y=2

Step-by-step explanation:

Name the triangles as ABC and DEF,

Now, since both the triangles are congruent by HL rule, therefore

3y=x+2                      (1)

and x=y+2                (2)

Substituting the value of  x=y+2  in equation (1), we get

3y=y+2+2

2y=4

y=2

Therefore, Putting y=2 in equation (2),

x=4

6 0
4 years ago
Isolate the x <br>3x+3y=-3
kirza4 [7]

Answer:

Step-by-step explanation:

3x + 3y = -3    given

3x = -3y - 3   subtract 3y from both sides

x = -y -1        divide everything by 3

hope this helps <3

3 0
3 years ago
True or false : The function shown has an absolute Minimum
MakcuM [25]

Answer:

Cannot be determined

Step-by-step explanation:

You cannot assume the function travels down infinitely, because the function is not given to you. The graph could go up down left or right for all you know, you just cannot see it.

4 0
3 years ago
Read 2 more answers
Other questions:
  • Brandon's backpack weighs 3140 grams. brandon
    6·2 answers
  • Find the area of the figure
    8·1 answer
  • The most important job of promotional material is to give you accurate information about a product. TRUE or FALSE
    5·1 answer
  • What is 6% of 24,300
    10·2 answers
  • If you are paid $238.74 for 211 2 hours of work, what amount should you be paid for 34 hours of work at this same rate of pay?
    9·1 answer
  • Choose the graph of the following equation 64(x+1)^2+36y^2=48^2
    10·1 answer
  • Helpppppppppppppp:))))
    14·1 answer
  • Which statements are true about the fully simplified product of (b minus 2 c)(negative 3 b + c)? Select two options. The simplif
    11·2 answers
  • Find the midpoint of PQ
    13·1 answer
  • A triangle has sides with lengths of 5 meters, 12 meters, and 13 meters. Is it a right triangle?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!