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3 years ago

5

Evaluate tan(cos^-1(-15/17))

2 answers:

lara [203]3 years ago

8 0

-8/15. Hope this helps:)

IrinaK [193]3 years ago

7 0

The answer is -8/15. This is a for sure correct answer.

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3<br> (<br> x<br> +<br> 7<br> )<br> <<br> 7<br> (<br> x<br> +<br> 2<br> )

Gre4nikov [31]

3(x+7)<7(x+2)

Inequality Form: x>7/4
Interval Notation: (7/4, infinity)

5 0

2 years ago

Trevor took one of his friends out to lunch. The lunches cost $248.40 and he paid 12.5% sales tax. If Trevor left a 15% tip on t

bixtya [17]

He paid ...

-- The cost of the lunches (100% = 1.00 of it)

-- 15% of the cost as a tip (15% = 0.15 of it)

-- 12% of the cost as sales tax (12% = 0.12 of it)

Total that he paid = (1.00 + 0.15 + 0.12) = 1.27 of $248.40

= $315.47 .

Trevor is one generous guy !

4 0

2 years ago

PLEASE HELP ME!!!!!!

Sonja [21]

Answer:

$\huge \red{ c_3 = - 1}$

Step-by-step explanation:

$c_1 = 1 \\ \\ c_n= - 2c_{n-1}+5 \\ \\ c_2 = - 2c_{2-1}+5 \\ \\ c_2 = - 2c_{1}+5 \\ \\ c_2 = - 2(1)+5 \\ \\ c_2 = - 2+5 \\ \\ \huge \purple{c_2 =3} \\ \\ c_3 = - 2c_{3-1}+5 \\ \\ c_3 = - 2c_{2}+5 \\ \\ c_3 = - 2(3)+5 \\ \\ c_3= - 6+5 \\ \\ \huge \red{ c_3 = - 1}$

6 0

3 years ago

Solve for x. Round your answer to the nearest tenth.

zlopas [31]

Answer:

By Pythagorean theorem:

$c^2=a^2+b^2$

$x=\sqrt{15^2+33^2}$

$x=36.25$

$x=36.3$

7 0

2 years ago

Please helppp!!!!!!!

rjkz [21]

Answer:

66

Step-by-step explanation:

5 0

2 years ago