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Blizzard [7]
4 years ago
12

I really need help with this

Mathematics
1 answer:
stealth61 [152]4 years ago
7 0

Answer:

100

Step-by-step explanation:

To complete the square, you have to add (\frac{b}{2})² to each side.

So, -20 divided by 2 is -10. -10 squared is 100, so add 100 to both sides of the equation to complete the square.

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In Which Quadrant is this true
34kurt

Given:

\sin \theta

\tan \theta

To find:

The quadrant in which \theta lie.

Solution:

Quadrant concept:

In Quadrant I, all trigonometric ratios are positive.

In Quadrant II, only \sin\theta and \csc\theta are positive.

In Quadrant III, only \tan\theta and \cot\theta are positive.

In Quadrant IV, only \cos\theta and \sec\theta are positive.

We have,

\sin \theta

\tan \theta

Here, \sin\theta is negative and \tan\theta is also negative. It is possible, if \theta lies in the Quadrant IV.

Therefore, the correct option is D.

5 0
3 years ago
Spiral Homework<br>Chapter 3 Lesson 5<br>-ach expression.<br>2. 3(-3) + 17<br>5. -21(3) + (-19)​
tankabanditka [31]

2. 3(-3)+17=8

3. -21(3) + (-19)=-82​

Step-by-step explanation:

We need to solve the following expressions.

2. 3(-3)+17

Solving we get:

3(-3)+17\\=-9+17\\=+8

5. -21(3)+(-19)​

Solving we get:

-21(3) + (-19)\\=-63+(-19)\\=-63-19\\=-82

Keywords: Integers

Learn more about Integers at:

  • brainly.com/question/10435816
  • brainly.com/question/8301701

#learnwithBrainly

6 0
3 years ago
Factor x3 + 3x2 + 2x completely.
daser333 [38]

Answer:

The answer to the first answer is:

B:  x(x + 1)(x + 2)

The second answer to the next part is:

C:  -2, -1, 0

Step-by-step explanation:

on edg... Good Luck!!!

6 0
4 years ago
I’m trying to find the 6 ratios in this.
dlinn [17]

Our 6 ratios:

10/24

10/26

24/26

24/10

26/10

26/24

5 0
3 years ago
If 9a+8b+9c=-9 what is 81c+72b+ 81a
vivado [14]
The answer is -234 

Have a fantastical day
4 0
3 years ago
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