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4 years ago

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:

#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!!!

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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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