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Viktor [21]
3 years ago
8

Why is y=-9x proportional?

Mathematics
1 answer:
Triss [41]3 years ago
7 0
Y = -9x is proportional because its in the format y = kx
if you graph this equation youll see that it is a straight line that passes through the origin

i hope this helps!!
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Erin is considering joining one of 2 clubs. Club A has no registration fee, but charges $105 per month. Club B charges members $
inn [45]

Answer:

4 months

Step-by-step explanation:

<u>Club A</u>

<em>registration fee: </em>$0

<em>monthly fee</em>: $105

<em>After</em><em> </em><em>every</em><em> </em><em>month</em><em>,</em><em> </em><em>the</em><em> </em><em>total</em><em> </em><em>cost</em><em> </em><em>increases</em><em> </em><em>by</em><em> </em><em>$</em><em>1</em><em>0</em><em>5</em><em>.</em>

month 0: $0

month 1: $105

month 2: $210

month 3: $315

month 4: $420

month 5: $525

month 6: $630

<u>Club</u><u> </u><u>B</u>

<em>registration</em><em> </em><em>fee</em><em>:</em><em> </em><em>$</em><em>375</em>

<em>monthly</em><em> </em><em>fee</em><em>:</em><em> </em><em>$</em><em>8</em><em>0</em>

<em>Notice how</em><em> </em><em>Club</em><em> </em><em>B's</em><em> </em><em>total</em><em> </em><em>reaches</em><em> </em><em>Club</em><em> </em><em>A's</em><em> </em><em>total</em><em> </em><em>after</em><em> </em><em>2</em><em> </em><em>months</em><em>.</em>

month 0: $375

month 1: $455

month 2: $535

month 3: $615

month 4: $695

3 0
4 years ago
If a = 5, b = 2, c = 4, then 6ab - 2c =<br><br> 628<br> 52<br> 2<br> 60
barxatty [35]

Answer:

52

Step-by-step explanation:

Where you see the letters substitute with the number.

6(5)(2) - 2(4)

60 - 8

=52

8 0
2 years ago
Read 2 more answers
Find the surface area of a cone with radius 5 ft and height 21 ft substitute pi for 3.14​
Kryger [21]

Answer:

<u>417.4ft^2</u>

Step-by-step explanation:

Surface area of a cone = πr(r+√r²+h²)

r is the radius

h is the height

Substitute

Surface area of a cone = π(5)(5+√5²+21²)

Surface area of a cone = πr(5+√25+441)

Surface area of a cone = π(5)(5+21.59)

Surface area of a cone = 3.14*5*26.59

Surface area of a cone <u>= 417.4ft^2</u>

<u>Hence the surface area of the cone is 417.4ft^2</u>

4 0
3 years ago
A bag contains 4 red marbles, 8 blue marbles and 3 green marbles. If three marbles are drawn out of the bag, what is the probabi
3241004551 [841]

4 Red + 8 Blue + 3 Green = 15 Total Marbles

(4/15) * (3/14) * (2/13) = 0.0087912088

Nearest 1000th = 0.009

Answer: 0.009

7 0
4 years ago
Find the slope please help!
Sidana [21]

Answer:

4.5 is the answer 9/2=4.5

Step-by-step explanation:

4 0
3 years ago
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