Gorychka440 Gorychka440

15-07-2014
Mathematics

Answered

Find the value of sec 38 ° to 4 decimal places.

A1.6243
B0.7880
C0.6157
D1.2690

Verified Answer :

15-07-2014

secd(38)
= 1/cosd(38)
= 1/sqrt[1-sind^2(38)] because cos^2(x) + sin^2(x) = 1
cos(30) = sqrt(3)/2 = 0.8660
cos(45) = 0.707
so cos(38) can be assumed to some where around 0.8
= 1/0.8
= 1.25

Therefore D is correct answer

Answer Link

Related Questions

What was the primary way the farms in the south differed from those in the north

If fx and f1x are inverse functions of each other and fx2x5 what is f18

where is the numerator in a fraction and where is the denominator

Divide Draw a quick picture 143 divided by 11

the earths crust is part of which sphere

Is the equation below written in standard form If not select which explanation best applies to why the equation is not written in standard form 2x3y5 athe requi

I need to find the noun in this nexts 10 sentences 1 Andrew is eating a peach 2 Chester flew a kite in the park 3 The clock was broken 4 Mr Jones corrected the

Which is this style of poetry The bees take flight With my thoughts and dreams The distant buzz is all that remains haiku free verse concrete none of these

Why does Primary succesion occur faster than Secondary succesion

what is 1 12 of 4000

Web Analytics Made Easy - Statcounter