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2 years ago

Can someone help me with 5 and 6? How do I put it? Will mark brainliest!

Mathematics

2 answers:

OverLord2011 [107]2 years ago

8 0

5.)you write 2+3 (less than symbol) y

6.)then, y+2 $\geq$ 6

Hope this helps you out some!

n200080 [17]2 years ago

5 0

Answer:

2 + 3 < y

y + 2 ≥ 6

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The value pi/4 is a solution for the equation 3 sqrt 2 cos theta+2=-1

natulia [17]

Answer:

<h2>FALSE</h2>

Step-by-step explanation:

$3\sqrt2\cos\theta+2=-1\\\\\text{Method 1}\\\\\text{Put}\ \theta=\dfrac{\pi}{4}\ \text{to the equation and check the equality:}\\\\\cos\dfrac{\pi}{4}=\dfrac{\sqrt2}{2}\\\\L_s=3\sqrt2\cos\dfrac{\pi}{4}+2=3\sqrt2\left(\dfrac{\sqrt2}{2}\right)+2=\dfrac{(3\sqrt2)(\sqrt2)}{2}+2\\\\=\dfrac{(3)(2)}{2}+2=3+2=5\\\\R_s=-1\\\\L_s\neq R_s\\\\\boxed{FALSE}$

$\text{Method 2}\\\\\text{Solve the equation:}\\\\3\sqrt2\cos\theta+2=-1\qquad\text{subtract 2 from both sides}\\\\3\sqrt2\cos\theta=-3\qquad\text{divide both sides by}\ 3\sqrt2\\\\\cos\theta=-\dfrac{3}{3\sqrt2}\\\\\cos\theta=-\dfrac{1}{\sqrt2}\cdot\dfrac{\sqrt2}{\sqrt2}\\\\\cos\theta=-\dfrac{\sqrt2}{2}\to\theta=\dfrac{3\pi}{4}+2k\pi\ \vee\ \theta=-\dfrac{3\pi}{4}+2k\pi\ \text{for}\ k\in\mathbb{Z}\\\\\text{It's not equal to}\ \dfrac{\pi}{4}\ \text{for any value of }\ k.$

7 0

2 years ago

I need help with 1 & 2 tyvm

BabaBlast [244]

Answer:

1. x=17.5

2. x=77

Step-by-step explanation:

1. -x=-3x+35

=2x=35

x=17.5

2. -x/7+8=-3

=-x/7=-11

=-x=-77

x=77

5 0

2 years ago

Read 2 more answers

During a volleyball training session, Keela drank twice as much water as Carol, and Xavier drank 100 mL more water than Keela. B

vladimir2022 [97]

Answer:

580ml

Step-by-step explanation:

Let The quantity of water drank by Carol be x

Now given that Keela drank twice as much water as Carol which means the quantity of water drank by Keela is 2x

Also given that Xavier drank 100 mL more water than Keela which means the quantity of water drank by Xavier is 2x+100

Total water consumed by all the three is 3 litres=3000 ml

Total water drank = Water drank by Keela + Water drank by Xavier +Water drank by carol

3000=x+2x+2x+100

5x=2900

x=580ml

Carol drank 580ml of water.

5 0

3 years ago

What's the square root of 5

Alenkinab [10]

Answer:

the square root of 5 2.236

4 0

2 years ago

Read 2 more answers

Problem 1: 2x > 4x - 6<br> problem 2: -3r < 10 - r<br> problem 3: 5c - 4 > 8c + 2

Trava [24]

<span>Problem 1: 2x > 4x - 6
2x < 6
x < 3

problem 2: -3r < 10 - r
-2r < 10
r > -5

problem 3: 5c - 4 > 8c + 2
3c < -6
c < -2</span>

8 0

3 years ago