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2 years ago

Pleaseeeeeee helppppppp

Mathematics

1 answer:

Alina [70]2 years ago

7 0

Answer:

what is the substitution method???

Step-by-step explanation:

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2 log x + log 11 WILL MARK BRAINLIEST

tester [92]

Answer:

$log(11 {x}^{2} )$

Step-by-step explanation:

$2logx + log11 \\ \\ = log {x}^{2} + log11 \\ \\ = log( {x}^{2} \times 11) \\ \\ = log(11 {x}^{2} )$

3 0

2 years ago

What is the value of cos θ given that (-2, 9) is a point on the terminal side of θ?

liq [111]

Answer:

a) cosθ = $\frac{-2\sqrt{85} }{85}$

Step-by-step explanation:

Step(i):-

Given point ( x , y ) = ( - 2 , 3 )

We know that the polar co-ordinates

x = r cos θ and y = r sinθ

where $r = \sqrt{x^{2} +y^{2} }$

$r = \sqrt{(-2)^{2} +(9)^{2} } = \sqrt{4+81} = \sqrt{85}$

Step(ii):-

x = r cos θ

cosθ $= \frac{x}{r}$

cosθ = $\frac{-2}{\sqrt{85} } = \frac{-2}{\sqrt{85} } X \frac{\sqrt{85} }{\sqrt{85} }$

cosθ = $\frac{-2\sqrt{85} }{85}$

3 0

2 years ago

Need help immediately

Tanzania [10]

Answer:

52,5°

Step-by-step explanation:

0,5 × (135 - 30)

= 0,5 × (105)

= 52,5°

7 0

2 years ago

Can y’all please help. I will send points if you want me to.

suter [353]

Answer:

the third one has a 2 acute angles 2 abuse angles and the x value is 110

Step-by-step explanation

the x value has to be bigger then 90 degree angles because it is a abuts angle and the 57 angle is a acute angle

8 0

3 years ago

There are 80 skittles in a bag you pick a handful of 12 purple 6 orange 3 red 5 green 4 yellow. How many red skittles do you exp

frozen [14]

Answer

Step-by-step explanation

there is 15 of each color 3 take away 15 equals 12 red skittles left

7 0

2 years ago