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erastovalidia [21]

3 years ago

13

write an expression to describe the sequence below.Use n to represent the position of a term in the sequence, where n=1 for the

first term

1 answer:

pashok25 [27]3 years ago

3 0

Ez 400 pionts isi quadrant to tan x

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1 + 5sin^2x= 7sin^2x solve trig equation. Can you show me how to solve this trig equation?

pantera1 [17]

Answer: $x = \frac{\pi}{4}\pm k\frac{\pi}{2}\,\,\,\,\,\,k=\{0,1,2,...\}$

Step by step:

$1 + 5\sin^2x= 7\sin^2x\\\sin^2 x\rightarrow z\\1 + 5z = 7z\\2z = 1\\z = \frac{1}{2}\implies \sin^2 x = \frac{1}{2}\\|\sin x| = \frac{1}{\sqrt{2}}\\\sin x = \pm\frac{1}{\sqrt{2}}=\pm\frac{\sqrt{2}}{2}\\\implies x = \frac{\pi}{4}\pm k\frac{\pi}{2}\,\,\,\,\,\,k=\{0,1,2,...\}$

(Used a table of common angles)

8 0

3 years ago

What is the value of X that makes equation true? -5(2x - 3) + 4x = -3x + 6

Alisiya [41]

Answer:

x=3

Step-by-step explanation:

6 0

3 years ago

In ARST, m R = 92° and mZS = 71°. Which list has the sides of ARST in order from

OLga [1]

Answer:which grade are you

Step-by-step explanation:

If you are grade 7 to 9 I know

7 0

3 years ago

Pls guys help me pls :c

Vinil7 [7]

Answer: A. $x\geq21\dfrac{2}{3}$ .

Step-by-step explanation:

The given inequation: $81-1\dfrac{1}{5}x\leq55$

$\Rightarrow\ 81-\dfrac{6}{5}x\leq55$

Multiplying 5 on both the sides, we get

$5(81-\dfrac{6}{5}x)\leq5\times55\\\\\Rightarrow\ 405-6x\leq275\\\\\Rightarrow\ 6x\geq405-275\\\\\Rightarrow\ 6x\geq130\\\\\Rightarrow\ x\geq\dfrac{130}{6}\\\\\Rightarrow\ x\geq\dfrac{65}{3}\\\\\Rightarrow\ x\geq21\dfrac{2}{3}$

Hence, the inequality for x is $x\geq21\dfrac{2}{3}$ .

So, the correct option is A. $x\geq21\dfrac{2}{3}$ ..

8 0

3 years ago

What is the measure is the angle shown with the question mark?

Ilya [14]

The interior angles of a quadrilateral( 4 sided figure) add up to 360 degrees.

114 + 84 + 94 + x = 360
292 + x = 360
x = 360 - 292
x = 68 <== ur missing angle

5 0

3 years ago

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