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3 years ago

What is the positive solution to this equation 4x^2+12x=135

Mathematics

1 answer:

Stels [109]3 years ago

5 0

Answer:

answer for the equation is 6.75

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Work out the third term of the sequence with nth term 3(n+2).<br><br>

Anon25 [30]

Answer:

Step-by-step explanation:

n = 3

3(n + 2) = 3(3+2) = 3*5 = 15

6 0

3 years ago

Read 2 more answers

PLEASE HELPPP ILL GIVE BRAINLIESTTTT!!!!

Travka [436]

Answer:

Isosceles triangle, <A=22°, <B=136°, <C=22°

Step-by-step explanation:

Look in the file :) Promise its safe and I'm not a bot.

AB and BC are legs of the triangle and AC is called the base of the triangle, <A and <C are acute angles while <B is an obtuse angle.

Have a nice day! :)

-Vana

7 0

3 years ago

If tan theta = 10/13 and cos theta > 0 then sin2theta is what ?

svetoff [14.1K]

$sin2\alpha = \frac{260}{269}$

<u>Step-by-step explanation:</u>

We have , $Tan\alpha = \frac{Perpendicular}{Base} = \frac{10}{13}$ ,

We know that $sin\alpha = \frac{Perpendicular}{Hypotenuse} = \frac{Perpendicular}{\sqrt[2]{(Perpendicualr)^{2} + (Base)^{2})} }$

Substituting values of P & B , $sin\alpha = \frac{10}{\sqrt{10^{2} + 13^{2}} } = \frac{10}{\sqrt{269} }$

Now , $sin2\alpha = 2sin\alpha cos\alpha = 2sin\alpha \sqrt{1 - (sin\alpha)^{2} }$

⇒ $sin2\alpha =$ $\frac{10}{\sqrt{269} }$ × $\sqrt{1 - (\frac{10}{\sqrt{269} })^{2} }$ ×2

⇒ $sin2\alpha = \frac{20}{\sqrt{269} }( \sqrt{\frac{269 - 100}{269} } )$

⇒ $sin2\alpha = \frac{20}{\sqrt{269} }( \sqrt{\frac{169 }{269} } )$

⇒ $sin2\alpha = \frac{260}{\sqrt{269} }( \sqrt{\frac{1}{269} } )$

⇒ $sin2\alpha = \frac{260}{269}$

6 0

3 years ago

If my car averages 27 miles to the gallon, how many miles can I drive on3/4 tank of gas

AURORKA [14]

Answer:

20.25 miles

Step-by-step explanation:

If your car travels 27 miles on a full tank of gas, then your car will travel $27\cdot\frac{3}{4}$ miles on $\frac{3}{4}$ tank of gas.

$27 \cdot 0.75 = 20.25$

I hope this helped!

7 0

3 years ago

Fill in the bubble next to all the doubles facts you could use to find the sum of 3+2? () 1+1

TiliK225 [7]

Answer:

(4) 2+2

(6) 3+3

(10) 5+5

Step-by-step explanation:

Easy as points if you ask me

5 0

3 years ago