2 years ago

Help please :))10 points

Mathematics

1 answer:

DaniilM [7]2 years ago

6 0

Answer:

54 -3n²

Step-by-step explanation:

The square of a number (n) is represented by n². Three times that value is represented by 3n².

The relation "a is subtracted from b" is represented as ...

b - a

When 3n² is subtracted from 54, the appropriate representation is ...

54 -3n²

You might be interested in

Please help with question 7 and 8 also 9

noname [10]

I think it would be B but I’m not sure for number 7

5 0

2 years ago

Help 15 pts. Please answer asap

marta [7]

Answer:

D. $4\sqrt{a^{2}+b^{2}}$

Step-by-step explanation:

We can see the shape can be cut into 4 right triangles. We can use pythagoreans theorem to find the length of the hypotenuse.

The distance from 0 to a represents one side, and the distance from 0 to b represents the other side.

$a^{2} +b^{2} =C^{2}$

(C represents the hypotenuse)

So the hypotenuse can be written as $\sqrt{a^{2} +b^{2} }$

Since four of these lines make up the perimeter,

the total perimeter will be $4\sqrt{a^{2}+b^{2}}$

4 0

2 years ago

Read 2 more answers

Help me pleaseeeeee!!!!!!

Lelu [443]

I believe it is B. You should be correct

7 0

2 years ago

Read 2 more answers

A student finishes the first half of an exam in the time it takes him to finish the second half. If the entire exam takes him an

strojnjashka [21]

Part 1 took 30 minutes and part 2 took 30 minutes

8 0

2 years ago

Okay hear this someone came into my shop and stole $100 without my knowledge they came back to the store and spent $70 in items

hodyreva [135]

You lost thirty dollars

4 0

2 years ago

Read 2 more answers

Help please :))10 points​

Help please :))10 points