Question

Brainly stars please answer de do its very urgent I need your helps please .​

Answer 1

$\huge{\red{\mathfrak{heyya \: mate}}}$

14. 4:9

15. i have some doubt

16. $\small{circumference \: of \: the \: circle = 22 cm}$

$2\pi \: r = 22$

$\pi \: r = 11$

$r = 11 \times \frac{22}{7}$

$r = 34.5cm$

17. favourable outcomes = 2

total outcomes = 7

$p(getting \: a \: vowel)= \frac{2}{7}$

18. solve it by using BPT.

19. Given,

15cotA=8

$cotA=\frac{15}{8}$

=> tanA= 8/15

-------(tanA=1/ cotA )

We know that,

tanθ= adjacentSide/oppositeSide

Consider the attached figure, triangleABC

From Pythagoras theorem,

${AC}^{2} = {AB}^{2} + {BC}^{2}$

AC^2 =8/2 +15/2

=64+225=289

AC=17

cosA= Hypotenuse/adjacentSide

= AC/AB

= 17/8

secA= 1/cosA

= 17/8

sinA= Hypotenuse/oppositeSide

= AC/BC

= 17/15

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