30 POINTS! RIGHT ANSWERS ONLY! PLEASE! Thank you, explanation is optional.

Mathematics

2 answers:

Len [333]3 years ago

4 0

Answer:

16+x=30 x=14

Step-by-step explanation:

GaryK [48]3 years ago

3 0

Answer: First question : 14

Second question : x(2x + 3x)

Third Question : 11

Fourth Question : 4/12

Fifth Question : m = 30 x 2w

Step-by-step explanation:

First question : If you add 16 to 14 you get 30 so 14 is X

Second question : I don't know how to explain

Third Question : If you subtract 11 from 25 you get one number lower than 15, the question says < and the smaller number eats the larger number so if you subtract 11 from 25 you get 14 and 14 is smaller than 15

Fourth Question : I'm not good at explaining fractions

Fifth Question : When you get to the 2nd week you have 30, then you basically multiply by 2 from 30 and on the 4th week you get 60

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PolarNik [594]

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3 years ago

Cos(theta)= -.9041, 180degress< theta <270degress

AVprozaik [17]

Answer:

$\theta=205.298^o$

Step-by-step explanation:

We know

$cos\theta=-.9041$

in the third quadrant $180^o$

We use a scientific calculator to find the inverse cosine of -0.9041 to find

$\theta=154.702^o$

Since this angle is not in the required quadrant we must find the other angle who has the same cosine. The required angle is equidistant from the found value from the 180 degrees angle, so our solution is

$\theta=180^o+(180^o-154.702)=205.298^o$