3 years ago

Plz hepl meeeeeeeeeeeee

Mathematics

1 answer:

Ira Lisetskai [31]3 years ago

7 0

Answer:

5 students

Step-by-step explanation:

2/3 of 30 = 20 students

1/4 of 20 = 5 students

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I need help on this ASAP!!

vazorg [7]

The answer is 16 units
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3 years ago

When a car is first observed it has a speed of 20 ms-1. after a time of 10 S it is observed that the speed is 50 MS-1

Lesechka [4]

Answer:

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Step-by-step explanation:

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3 years ago

Find the length of DE. Round to the nearest hundredth. (Picture included)

LenKa [72]

Notice the picture
we have, the opposite side
the angle
and we want the hypotenuse

so recall your SOH CAH TOA $\bf sin(\theta)=\cfrac{opposite}{hypotenuse}
\qquad \qquad 
% cosine
cos(\theta)=\cfrac{adjacent}{hypotenuse}

\\ \quad \\\\
% tangent
tan(\theta)=\cfrac{opposite}{adjacent} =$

which one has all that? low and behold, is Ms Sine,
so let's bother Ms Sine

$\bf sin(\theta)=\cfrac{opposite}{hypotenuse}\implies sin(27^o)=\cfrac{18}{hypotenuse}
\\\\\\
hypotenuse=\cfrac{18}{sin(27^o)}$

make sure your calculator is in Degree mode, since the angle here is in degrees, as opposed to Radian mode