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2 years ago

Helpppppp ill mark u brainlest

Mathematics

2 answers:

marshall27 [118]2 years ago

5 0

Answer:

See below ~

Step-by-step explanation:

Part (A) :

⇒ aₙ = aₙ₋₁ + 1/2

⇒ Each consecutive term follows this recursive rule

Part (B) :

With each term number increase of 1, the term value increases by 1/2.

Allushta [10]2 years ago

4 0

Answer:

an=a+(n-1)d

part B is 1

Step-by-step explanation:

please mark me as brainlest

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The sum of the roots of the equation x 2 + x = 2 is:

julsineya [31]

Hello :
x²+x - 2 =0
a=1 b=1 c = -2
The sum of the roots is : S = -b/a
S = - 1/1 = -1

4 0

3 years ago

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(cotx+cscx)/(sinx+tanx)

Butoxors [25]

Answer: $\bold{\dfrac{cot(x)}{sin(x)}}$

Step-by-step explanation:

Convert everything to "sin" and "cos" and then cancel out the common factors.

$\dfrac{cot(x)+csc(x)}{sin(x)+tan(x)}\\\\\\\bigg(\dfrac{cos(x)}{sin(x)}+\dfrac{1}{sin(x)}\bigg)\div\bigg(\dfrac{sin(x)}{1}+\dfrac{sin(x)}{cos(x)}\bigg)\\\\\\\bigg(\dfrac{cos(x)}{sin(x)}+\dfrac{1}{sin(x)}\bigg)\div\bigg[\dfrac{sin(x)}{1}\bigg(\dfrac{cos(x)}{cos(x)}\bigg)+\dfrac{sin(x)}{cos(x)}\bigg]\\\\\\\bigg(\dfrac{cos(x)}{sin(x)}+\dfrac{1}{sin(x)}\bigg)\div\bigg(\dfrac{sin(x)cos(x)}{cos(x)}+\dfrac{sin(x)}{cos(x)}\bigg)$

$\text{Simplify:}\\\\\bigg(\dfrac{cos(x)+1}{sin(x)}\bigg)\div\bigg(\dfrac{sin(x)cos(x)+sin(x)}{cos(x)}\bigg)\\\\\\\text{Multiply by the reciprocal (fraction rules)}:\\\\\bigg(\dfrac{cos(x)+1}{sin(x)}\bigg)\times\bigg(\dfrac{cos(x)}{sin(x)cos(x)+sin(x)}\bigg)\\\\\\\text{Factor out the common term on the right side denominator}:\\\\\bigg(\dfrac{cos(x)+1}{sin(x)}\bigg)\times\bigg(\dfrac{cos(x)}{sin(x)(cos(x)+1)}\bigg)$

$\text{Cross out the common factor of (cos(x) + 1) from the top and bottom}:\\\\\bigg(\dfrac{1}{sin(x)}\bigg)\times\bigg(\dfrac{cos(x)}{sin(x)}\bigg)\\\\\\\bigg(\dfrac{1}{sin(x)}\bigg)\times cot(x)}\qquad \rightarrow \qquad \dfrac{cot(x)}{sin(x)}$

6 0

4 years ago

Please help with this problem:

Olegator [25]

He added 8 to both sides. He did the write thing.

6 0

3 years ago

Someone please helppp ! i’ll give brainliest to the right answer !

Nuetrik [128]

Answer:

The function is 2 I believe

Step-by-step explanation:

6 0

3 years ago

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Suppose y varies directly with x, and y = 8 when x = –6. What direct variation equation relates x and y? What is the value of y

Agata [3.3K]

Given:
y varies directly with x
y = 8 when x = -6

what is the value of y when x = -2?

y = kx

we need to get the constant of variation.
8 = k(-6)
8/-6 = k
4/-3 = k or - 1 1/3

y = -4/3 (-2)
y = (-4*-2) / 3
y = 8 / 3
y = 2 2/3 OR 2.67

The correct answer is Choice B. y = -1.33x ; 2.67

4 0

3 years ago