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Lostsunrise [7]
4 years ago
8

How would you write 0.3y + 1.2 = –0.4x in standard form?

Mathematics
1 answer:
statuscvo [17]4 years ago
8 0
Multiply both sides by 10.

3y + 12 = 4x

subtract 12 and 4x from both sides.

-4x + 3y = -12
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What is a base of 3 with an exponent of-3??<br>​
DaniilM [7]

Answer:

The answer is 1/27

Step-by-step explanation:

3^-3 can be written as 1/3^3 and 3^3 = 3x3x3= 27

Therefore, the answer is 1/27.

8 0
2 years ago
Read 2 more answers
What is the explicit formula for the sequence 10, 15, 22.5, 33.75, …?
Flura [38]

Answer:

Step-by-step explanation:

Since there's no one one number you can add to one number in the sequence to get to the next number, this is not arithmetic. It must be geometric. We need then to find the common ratio. Let's start with the first 2 numbers, find a ratio, and then use it to test for accuracy.

10x = 15 and

x = \frac{15}{10}=\frac{3}{2} If this is in fact a geometric sequence witha common ratio of 3/2, we should be able to multiply 15 by 3/2 to get to the next number in the sequence. Let's try it out:

15(\frac{3}{2})= \frac{45}{2}=22.5 Good. So the common ratio is 3/2. The formula for an explicit geometric formula is

A_n=a_1(r)^{n-1 where a1 is the first number in the sequence and r is the common ratio. Filling in:

A_n=10(\frac{3}{2})^{n-1

8 0
3 years ago
What is the area of a square with a side of 8x^7 y^3
sukhopar [10]
Area of a square with side s is \sf{s^2}

In your question, the side or s is: \sf{8x^7y^3}

And so the area of a square with that side length would be:

\sf{(8x^7y^3)^2}

And using this formula: \sf{(a^b)^c =a^{b\times c}}

We get that the area is:

\sf{(8x^7y^3)^2 = 8^2 x^{7\times 2} y^{3\times 2}}

And simplifying that we get the final answer as:

\huge{\boxed{\bf{Area=64x^{14}y^{6}}}}
4 0
3 years ago
Is the point (3, 11) a solution for the linear equation 1/3x + y = 12? Explain.
PtichkaEL [24]

9514 1404 393

Answer:

  yes

Step-by-step explanation:

The point is on the line.

The coordinate values satisfy the equation:

  1/3x + y = 12

  1/3(3) + 11 = 12 . . . substitute for x and y

  1 + 11 = 12 . . . . . . . true

Any point that satisfies the equation is a solution. (3, 11) is a solution.

5 0
3 years ago
HELP PLSS ITS FOR MATHHH
Cerrena [4.2K]

Answer:

Number 4

Step-by-step explanation:

I have done this quiz before, and that is what it looks like

I don't know if I am right, but good luck!

4 0
3 years ago
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