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3 years ago

Quadratic equations by factoring! im terrible at math someone dumb this down for me!

Mathematics

1 answer:

AleksAgata [21]3 years ago

5 0

Answer:

hi leo mill

Step-by-step explanation:

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Paraphin [41]

The correct answer is 3x+90=180

Because you add the 2x and the x and you get 3x then there is a 90 degree angles so you add that and =180

Once you put it in the equation you can subtract 90 from 180 and you get 90 which you then divided by 3x and x equals 30

4 0

3 years ago

Have a free brainliesttttttttttttttttttt

lilavasa [31]

Ok me pls thank you so much you are a heavenly angel

7 0

3 years ago

You are given the parametric equations x=2cos(θ),y=sin(2θ). (a) List all of the points (x,y) where the tangent line is horizonta

vladimir1956 [14]

Answer:

The solutions listed from the smallest to the greatest are:

x: $-\sqrt{2}$ $-\sqrt{2}$ $\sqrt{2}$ $\sqrt{2}$

y: -1 1 -1 1

Step-by-step explanation:

The slope of the tangent line at a point of the curve is:

$m = \frac{\frac{dy}{dt} }{\frac{dx}{dt} }$

$m = -\frac{\cos 2\theta}{\sin \theta}$

The tangent line is horizontal when $m = 0$ . Then:

$\cos 2\theta = 0$

$2\theta = \cos^{-1}0$

$\theta = \frac{1}{2}\cdot \cos^{-1} 0$

$\theta = \frac{1}{2}\cdot \left(\frac{\pi}{2}+i\cdot \pi \right)$ , for all $i \in \mathbb{N}_{O}$

$\theta = \frac{\pi}{4} + i\cdot \frac{\pi}{2}$ , for all $i \in \mathbb{N}_{O}$

The first four solutions are:

x: $\sqrt{2}$ $-\sqrt{2}$ $-\sqrt{2}$ $\sqrt{2}$

y: 1 -1 1 -1

The solutions listed from the smallest to the greatest are:

x: $-\sqrt{2}$ $-\sqrt{2}$ $\sqrt{2}$ $\sqrt{2}$

y: -1 1 -1 1

6 0

3 years ago

For problem number four on the paper I’m confused I don’t know how to do the table with decimals can someone please explain how

Lostsunrise [7]

Answer:

$7.00

Step-by-step explanation:

$2.10 \div 6 = 0.35$

4a) 1 oz of coffee is equal to 0.35c, which is consistent with everything in the table.

4b)Knowing this, if we have 20 oz of coffee, and we multiply it by 0.35, we will get how much it costs for this cup.

20*0.35 = 7.00

Hope this makes sense and feel free to ask questions!

6 0

2 years ago

Help plsssssssssssss????

nikklg [1K]

Answer:

y=2/3+11

Step-by-step explanation:

5 0

3 years ago

Quadratic equations by factoring! im terrible at math someone dumb this down for me! ​

Quadratic equations by factoring! im terrible at math someone dumb this down for me!