3 years ago

Please show work for questions 6 and 14

Mathematics

1 answer:

maxonik [38]3 years ago

6 0

Actually I had learnt this but.....do u want a formula ?

You might be interested in

Instructions:Select the correct answer.

Taya2010 [7]

Bro its D i got it right

4 0

3 years ago

This is pre calculus please help !Describe three ways to determine the measure of segment YZ.

Dmitry [639]

(1) Using trigonometric ratios:
$sin(30) = \frac{YZ}{50}$
$YZ = 25$

(2) Using Pythagoras' Theorem:
$cos(30) = \frac{XY}{50}$
$50cos(30) = XY$
$50^{2} - 50^{2}cos^{2}(30) = YZ^{2}$
$2500 - 2500cos^{2}(30) = YZ^{2}$
$YZ = 25$

(3) Using sine rule:
$\frac{50}{sin(90)} = \frac{YZ}{sin(30)}$
$50 = \frac{YZ}{sin(30)}$
$50sin(30) = YZ$
$YZ = 25$

7 0

3 years ago

Read 2 more answers

684303 rounded to nearest thousand

horsena [70]

684,000. This should give you the correct answer as the 4 is the thousands place. Good luck :D

3 0

3 years ago

What’s 3 times 72 in expanded Form?

Dominik [7]

200+ 10 + 6= 216

...........................................

4 0

3 years ago

Read 2 more answers

Simplify.<br> 4/x^2-35 - 1/x+5

Oksana_A [137]

If I understand your question well, I suppose you mean $\frac{4}{ x^{2} -35} - \frac{1}{x+5}$
$\frac{4}{ x^{2} -35} - \frac{1}{x+5} = \frac{4}{(x+5)(x-7)}- \frac{1}{x+5} \\ = \frac{1}{x+5}( \frac{4}{x-7}-1) \\ = \frac{1}{x+5}( \frac{4}{x-7}- \frac{x-7}{x-7}) \\ = \frac{1}{x+5}( \frac{4-x+7}{x-7}) \\ = \frac{1}{x+5}( \frac{11-x}{x-7}) \\ = \frac{11-x}{ x^{2} -35}$

6 0

3 years ago