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2 years ago

Is 7x=-6y a direct variation?

Mathematics

1 answer:

7nadin3 [17]2 years ago

7 0

X and Y can almost be any number and long as the statement 'equal to' is true the equation is correct.

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Please help with this if you don’t know don’t answer

astraxan [27]

Answer:

3\16

Step-by-step explanation:

movement of snail per hour,1/8×3/2=3/16

5 0

2 years ago

Help plssss!!! Giving. 10 pointsssssss

gayaneshka [121]

Answer:

its 34

Step-by-step explanation:

8 0

2 years ago

The number 42 is increased to 46. what is the percentage by which the number was increased?

Arte-miy333 [17]

Answer:

9.52% ( to 2 dec. places )

Step-by-step explanation:

Calculate the percentage increase using

percent increase = $\frac{increase}{original}$ × 100%

increase = 46 - 42 = 4, hence

percent increase = $\frac{4}{42}$ × 100% ≠ 9.52%

7 0

2 years ago

Which function describes the arithmetic sequence shown?

Shkiper50 [21]

Answer: C.) f(x) = -2x + 5

If you start from x=1, you will see the patter follows -2x + 5

-2(1) +5 = -2+5 = 3
-2(2)+ 5 = -4 + 5 = 1
-2(3) + 5= -6 +5 = -1
And so on...

3 0

3 years ago

Read 2 more answers

Winning the jackpot in a particular lottery requires that you select the correct four numbers between 1 and 42 and, in a separa

NARA [144]

Answer:

$\dfrac{1}{3,357,900}$

Step-by-step explanation:

There are

$C^{42}_4=\dfrac{42!}{4!(42-4)!}=\dfrac{42!}{4!\cdot 38!}=\dfrac{38!\cdot 39\cdot 40\cdot 41\cdot 42}{2\cdot 3\cdot 4\cdot 38!}=39\cdot 10\cdot 41\cdot 7=111,930$

different ways to select the four numbers between 1 and 42. Only one of this ways is correct (successful to win).

There are 30 different ways select the single number between 1 and 30. Only one of them is correct.

The probability of winning the jackpot is

$\dfrac{1}{111,930}\cdot \dfrac{1}{30}=\dfrac{1}{3,357,900}$

4 0

2 years ago

Read 2 more answers