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3 years ago

Please check my answers. Thanks

Mathematics

1 answer:

vaieri [72.5K]3 years ago

5 0

1) should be second option

CD→

2) None of these

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Which point is on the graph of a direct variation equation in which k=0.4?

vladimir2022 [97]

Answer:

B. (10,4)

Step-by-step explanation:

Let x be the independent variable and y represents the dependent variable in the graph,

∵Graph represents the direct variation,

⇒ y ∝ x

⇒ y = kx

Where, k is the proportionality constant.

Here, k = 0.4,

⇒ Equation that shows in the graph would be,

y = 0.4x

At (4, 10),

10 = 0.4(4) ( False ),

⇒ (4, 10) is not in the graph.

At (10, 4),

4 = 0.4(10) ( True )

⇒ (10, 4) is on the graph.

At (0.04, 10),

10 = 0.4(0.04) ( false )

⇒ (0.04, 10) is not on the graph.

At (10, 0.04),

0.04 = 0.4(10) ( false )

⇒ (10, 0.04) is not on the graph.

8 0

3 years ago

At the gym Merl swims every 6 days, runs every 4 days and cycles every 16 days. If she did all 3 activities today in how many da

garri49 [273]

Answer:

48 days

Step-by-step explanation:

Swim = every 6 days

Run = every 4 days

Cycles = every 16 days

Find the lowest common multiple of 6, 4 and 16

6 = 6, 12, 18, 24, 30, 36, 42, and 48

4 = 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48

16 = 16, 16, 32, 48, 64, 80, 96, 112, 128, 144, 160

The LCM of 6, 4 and 16 is 48

Therefore,

If she did all 3 activities today, she will do all 3 activities again in the next 48 days

8 0

3 years ago

PLEASE HELP

Mkey [24]

Answer:

1) 3,6,9

2) the pattern will keep growing around 3 multiple

3) the next pattern is 12,15

8 0

3 years ago

6. Solve the problem.

Assoli18 [71]

Answer: 32

Step-by-step explanation:

we have in this case right triangle with a leg equal to 24 and a hypotenuse equal to 40

c^2=a^2+b^2

40^2=24^2+b^2

b^2=1600-576=1024

b=sqrt1024=32

4 0

3 years ago

X ^ 2 + y ^ 2 + 6y - 67 = 2y - 6x; circumference

garri49 [273]

Answer:

(x+3)^2+(y+2)^2=80

Step-by-step explanation:

7 0

2 years ago