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Harrizon [31]
3 years ago
15

Change the subject of the equation v = u + at to a.

Mathematics
1 answer:
emmasim [6.3K]3 years ago
8 0
<h3>Answer ↓</h3>

<h3>Calculations ↓</h3>

In order to make a the subject of this equation , we need to get a by itself .

The current equation is :

v = u + at

Subtract u on both sides :

v-u=at

Now, divide by t on both sides :

v-u/t=a

<h3>So the formula looks like ↓</h3>

\boxed{\\\begin{minipage}{3cm}Equation \\ a=$\displaystyle\frac{v-u}{t} $ \\ \end{minipage}}

hope helpful ~

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Two ships set sail in different directions from the same place. Tyler's ship sail 35 miles while Noah's ship sails for 42 miles.
earnstyle [38]

Answer:

<em>The angle between their paths when they started is 93°.</em>

Step-by-step explanation:

<u>The Law of Cosines</u>

It relates the length of the sides of a triangle with one of its internal angles.

Let a,b, and c be the length of the sides of a given triangle, and x the included angle between sides a and b, then the following relation applies:

c^2=a^2+b^2-2ab\cos x

When the two ships travel in different directions from the same point in the plane, they form an angle we called x in the image below.

Tyler's ship sails a=35 miles and Noah's ship sails for b=42 miles. At some time they are c=56 miles apart.

Since we know the values of all three side lengths, we solve the equation for x:

\displaystyle \cos x=\frac{a^2+b^2-c^2}{2ab}

Substituting values:

\displaystyle \cos x=\frac{35^2+42^2-56^2}{2(35)(42)}

Calculating:

\displaystyle \cos x=-\frac{147}{2940}=-\frac{1}{20}

Computing the inverse cosine:

x = \arccos(-0.05)

x \approx 93^\circ

The angle between their paths when they started is 93°.

6 0
3 years ago
Who invented mathematics and what year was it invented?
ValentinkaMS [17]

it was invented in 500b.c. when there were dinosaurs <span />
8 0
3 years ago
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I don’t know how to do the problem
ahrayia [7]
Gotta move that b to the side ya dig
5 0
3 years ago
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
Svetach [21]

Answer:

I forgot the answer from the last 4 versions of this question!!!!

Step-by-step explanation:

4 0
3 years ago
This is a new version of the question. Make sure you start new workings.
cestrela7 [59]

Answer:

8.5 cm

Step-by-step explanation:

It was a very easy question if I am wrong so sorry i tried my best to answer this question

8 0
2 years ago
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