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2 years ago

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Mathematics

1 answer:

nataly862011 [7]2 years ago

3 0

42.51 is the right answer

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I’ve got a couple trigonometry questions that I really need help on. I don’t understand them at all.

wel

Answer:

Q5. Option 1

Q7. Option 4

Step-by-step explanation:

Please see the attached pictures for full solution.

5 0

2 years ago

WILL NAME brainliest

kolezko [41]

Answer:

$x=13$

Step-by-step explanation:

By the definition of an angle bisector, we have that $8x-23=5x+16$ .

We can add $23$ to both sides to get $8x=5x+39$ .

We can then subtract $5x$ from both sides to get $3x=39$ .

We can finally divide both sides by $3$ to get $\boxed{x=13}$

7 0

3 years ago

Read 2 more answers

Find the oth term of the geometric sequence 9, -18, 36, ...

Sphinxa [80]

Answer:

2304

Step-by-step explanation:

Given :-

A geometric sequence is given to us which is 9 , -18 , 36.

And we need to find out the 9th term of the sequence. Here firstly we should find the Common Ratio and then we can substitute the respective values in the formula to find the nth term of a geometric sequence .

Common Ratio :-

$:\implies$ CR = -18÷ 9 = -2

The 9 th term :-

$:\implies$ T_n = arⁿ - ¹

$:\implies$ T_9 = 9× (-2) ⁹ - ¹

$:\implies$ T_9 = 9 × (-2)⁸

$:\implies$ T_9 = 9 × 256

$:\implies$ T_9 = 2304

Hence the 10th term is 2304.

3 0

3 years ago

Verify the following identity: (csc theta -cot theta )/(sec theta -1) A. sec theta B. cos theta C. cot theta D. sin theta

alexdok [17]

Answer:

C. cot theta

Step-by-step explanation:

(csc theta -cot theta )/(sec theta -1)

csc = 1/ sin

cot = cos / sin

sec = 1 / cos

Let x = theta

(1/ sin x -cos x / sin x )/(1/ cos x -1)

Getting a common denominator in the denominator and combining terms

(1- cos x)/ sinx / ( 1 - cos x) / cos x

(1- cosx) (1- cosx)

----------- ÷ ------------

sinx cos x

Copy dot flip

(1- cosx) cosx

----------- * ------------

sinx 1 -cos x

Cancel like terms

cos x / sin x

cos / sin = cot

cot x

cot theta

3 0

3 years ago

What’s the vertex of the graph of the function y=x^2-8x+12

myrzilka [38]

Answer:

The vertex is 4

6 0

2 years ago