All categories

2 years ago

Which of the following expressions is equal to -4x^2-36

Mathematics

2 answers:

Svet_ta [14]2 years ago

6 0

What expressions? Will edit when I get it

Aliun [14]2 years ago

5 0

Answer: (-4x+12i)(x+3i)

Step-by-step explanation: for apex

You might be interested in

Find the circumference of the circle. Round your answer to two decimal places if necessary <br> 4cm

ratelena [41]

Answer:

I think its 12.56

Step-by-step explanation:

Multiply 4 and 3.14(thats pi)

7 0

2 years ago

(csc x - 1) (csc x + 1)

victus00 [196]

<h2>Explanation:</h2>

Here we have the following expression:

$(csc x - 1) (csc x + 1)$

So we need to extend this. Remember that the difference of squares tells us:

$(a-b)(a+b)=a^2-b^2$

So here:

$a=cscx \\ \\ b=1$

Thus:

$(csc x - 1) (csc x + 1)=csc^2x-1 \\ \\ \\ But: \\ \\ cscx=\frac{1}{sinx} \\ \\ \\ Then: \\ \\ csc^2x-1=\frac{1}{sin^2x}-1=\frac{1-sin^2x}{sin^2x}=\frac{cos^2x}{sin^2x}=cot^2x \\ \\ \\ Finally: \\ \\ \boxed{(csc x - 1) (csc x + 1)=cot^2x}$

4 0

3 years ago

Pleaseeeee answer I will mark brainliest for best answer ^>^

Orlov [11]

Answer: 7.6

Explanation:

8 0

2 years ago

Read 2 more answers

If p percent = 30 percent ,CP =RS1000, SP =? profit amount =?

lubasha [3.4K]

yes I am not I can always count on me and I can always count on

5 0

2 years ago

What angles make a triangle? Like, I know 180 is one, but is that it?

VARVARA [1.3K]

Answer:

The right triangle has one 90 degree angle and two acute (< 90 degree) angles. Since the sum of the angles of a triangle is always 180 degrees... The two sides of the triangle that are by the right angle are called the legs... and the side opposite of the right angle is called the hypotenuse.

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers