PLEASE HELP ASAP 15 BRAINLY POINTS1) (multiple answers pick two) Does the equation represent a direct variation? If so, identify the constant of variation.
17y = 85x
A) Yes
B) No
C) 5
D) 1/5
2) Determine whether the relationship is a direct variation.
X : 3, -1 , -4
Y : -6, 2, 8
A) yes
B) No
3) Is the relationship shown a direct variation? (it's not absolute value is a table chart)
| X | Y |
| -2 | 5 |
| 1 | 3 |
| 4 | 1 |
A) yes
B) No
4) Determine whether the relationship is a direct variation.
------------------------------
| X | 6 | 9 | 17 |
-------------------------------
| Y | 13.2 | 19.8 | 37.4 |
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A) yes
B) no
5) Determine which equation does NOT represent a direct variation.
A) 6x - y = 0
B) y = 4x + 1
C) y = -2x
D) y = 1/3x
6) (multiple answer pick 2) Tell whether the equation represents a direct variation. If so identify the constant of variation. y + 3x = 0
A) Yes
B) No
C) -3
D) 1/3
E) 3
Answers
1.) The answer is (B) No, because direct variation is written as y = kx, but the problem was not written that way.
2.) Answer: Yes; if you write x = ky, you will find that each x value given multiplied by a common k equals a corresponding y value.
3.) Answer: No; each x value does not multiply by a constant k to get the y values.
4.) Answer: Yes; each x value multiplies by 2.2 to get each corresponding y value.
5.) Answer: B; this is the only one that isn't or can't be written in y = kx form.
6.) Answer: Yes & -3; y + 3x = 0 can be written as y = -3x, which is a direct variation equation. The constant is just the -3.
1) b
2) no
3) c
4) a
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Answer:
9,540,000 square miles
= 17,210,000
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Answer:
3.2x + 0.8y ≤ 50
Step-by-step explanation:
Mr. Ishimoto ordered math books and workbooks for his class.
Weight of each math book = 3.2 pounds
number of math books ordered = x
so, total weight of math books = 3.2x
Weight of each workbook = 0.8 pounds
number of workbooks ordered = y
so, total weight of workbooks = 0.8y
Since the total weight of the box of books cannot be more than 50 pounds, the equation would be
3.2x + 0.8y ≤ 50
Answer: B
Step-by-step explanation:
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=cos x + (cos 180)(cosx) +sin(180)(sinx))
=cos x+{-1(cos x)+0(sinx)
Note cos 18
= cos x-cos x
=0
Answers
If you look at the angle, it is bisected equally - meaning the ray separating it is a bisector. (The two triangles are similar by angle-angle similarity.) Since the line is a bisector, you simply divide 13 by 2 to get 6.5.
OX = 6.5
13=DX,
OX = 0.5*DX
13*0.5=6.5