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3 years ago

If x is 6, then 7x =

Mathematics

1 answer:

Lana71 [14]3 years ago

3 0

I think it's 42 since 7x6=42

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The standard form of the equation of a circle is (x−3)2+(y−1)2=16.

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$Use:(a-b)^2=a^2-2ab+b^2\\\\(x-3)^2+(y-1)^2=16\\\\x^2-2\cdot x\cdot3+3^2+y^2-2\cdot y\cdot1+1^2=16\\\\x^2-6x+9+y^2-2y+1=16\\\\x^2+y^2-6x-2y+10=16\ \ \ |-16\\\\\boxed{x^2+y^2-6x-2y-6=0}$

8 0

3 years ago

Read 2 more answers

We just saw an example of "Survival of the fittest" with the rabbits that survived. We often use this as an expression to descri

GarryVolchara [31]

Answer:

If only the fittest survive in certain enviorments other animals have to evolve to live in different places

Step-by-step explanation:

3 0

2 years ago

At Elisa's printing company, there are two kinds of printing presses: Model A, which can print 70 books/ day, and model B, which

Dmitrij [34]

Answer:

9 Model As.

Step-by-step explanation:

Let A represent Press A and let B represent Press B.

So, they own 14 total presses. This means that:

$A+B=14$

They can print 905 books per day, in other words, since A prints 70 per day and B prints 55 per day:

$70A+55B=905$

This is now a system of equations. Solve by substitution. From the first equation, subtract B from both sides:

$A=14-B$

Substitute this into the second equation: "

$70(14-B)+55B=905$

First, we can divide everything by 5 to simplify things:

$14(14-B)+11B=181$

Distribute the left:

$196-14B+11B=181$

Combine like terms:

$-3B+196=181$

Subtract 196 from both sides:

$-3B=-15$

Divide both sides by -3

$B=5$

So, the company has 5 Model B presses.

Which means that the company has 14-5 or 9 Model A presses.

And we're done!

3 0

3 years ago

I need help asap thxss

s2008m [1.1K]

Answer: the first choice

4 0

3 years ago

Read 2 more answers

How many acute angles are in an acute triangle?

Leokris [45]

Answer:

Three acute angles.

Explanation:

There are always three acute angles in an acute triangle.

8 0

3 years ago