3 years ago

If y varies directly with x, and y=-1 when x=3

Mathematics

1 answer:

UNO [17]3 years ago

4 0

Answer:

where da question at

Step-by-step explanation:

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Which expression is equivalent? (42x−5y−4z3)−2 A) 256x10y8z6 B) 256 x10y8z6 C) x10y8 256z6 D) y8 256x10z6

Natasha_Volkova [10]

The best answer is c

6 0

3 years ago

A video game has 25 levels. At level one, a player has 5 points. Each additional level increases the player's points by 10. If

ozzi

Answer:

B. (3,25)

Step-by-step explanation:

x = level of the video game

y = number of points

At level 1, a player has 5 points.

At level 2, the player has 5 + 10 = 15 points

Therefore, we can use the function notation this way:

f(x) = 5x + 10

The only ordered pair given that is from this function is:

B. (3,25)

f(3) = 5 * 3 + 10

f(3) = 15 + 10 = 25

The remaining three don't represent this function.

3 0

3 years ago

Please help equation below

qaws [65]

Answer:

3y √21 + 2 y√15

Step-by-step explanation:

To simply, we open up the bracket

We have this as;

√(189y^2) + √60y

= 3y √21 + 2 y√15

7 0

2 years ago

the art teacher is sending home a total of 3,150 projects before winter break if each of her 150 students had the same number of

Alenkinab [10]

Answer:

21 projects each

Step-by-step explanation:

3150 ÷150

4 0

3 years ago

Solve: 3x−5 = 9. A. x = −3 B.x = 2 C.x = 7 D.x = 8

Alina [70]

Answer:

Step-by-step explanation:

$3x-5=9$

$3x-5+5=9+5$

$3x=14$

$\frac{3x}{3}=\frac{14}{3}$

$x=\frac{14}{3}$

x ≈ 4.66667

4 0

3 years ago

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