Question

math help

Answer 1

its not a quiz! god i have proof my teacher has to use the quiz option cause our homework option hasnt worked all year so she just puts homework into quiz style

Answer 2

to calcule the EF just use the Pytaghora's theorem

Answer 3

ok EF is 8.49

Answer 4

yes you r right

Answer 5

ok how do i find d and f

Answer 6

for angles measures you can use the law of sin for example

Answer 7

ok i know the sin formula but i forget how to plug the numbers in

Answer 8

well no one is helping me

Answer 9

@imagine

Answer 10

Pythagorean theorem part:
\(c^2=a^2+b^2\)
so
\(9^2=3^2+b^2\) simplify it
\(81=9+b^2\) remove 9 from both sides
\(72=b^2\) square both sides
\(8.5=b\) this is your EF answer.

Answer 11

thanks but i also need help to find d and f

Answer 12

Angles:
\(cos^\text{-1}(\dfrac{3}{9})=D^\circ\)
solve that to find your answer for \(\angle\)D

\(sin^\text{-1}(\dfrac{3}{9})=F^\circ\)
solve that to find your answer for \(\angle\)F

Answer 13

Sorry, my wifi decided it would cut out in the middle of answering the second part.

Answer 14

its ok jus give me a second

Answer 15

for <F i got 19.5

Answer 16

<D 70.5

Answer 17

i think im wrong