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defon
3 years ago
9

given the vector with a manitude of 9m at an angle a of -80 degrees, decompose this vector into two vector components oarallel t

o the x axis with a slope of
Mathematics
1 answer:
lana [24]3 years ago
3 0

Answer:

We have the magnitude, M, and the angle A.

(The angle is always measured from the +x-axis)

Then we have that:

x = M*cos(A)

y = M*sin(A)

in this case:

M = 9m

A = -80°

x = 9m*cos(-80°) = 1.562

y = 9m*sin(-80) = -8.86m

Now, the component parallel to the x axis is:

x = 9m*cos(-80°) = 1.562 m

And the slope of something parallel to the x-axis is always zero, as this is a constant line.

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Dmitry_Shevchenko [17]
She rounded to the nearest tenth.

1.45 rounded to the nearest tenth would be 1.5 and 2.38 rounded to the nearest tenth would be 2.40 (or 2/4)

Hope this helped! :)

8 0
3 years ago
Read 2 more answers
Matt buys a new fish tank. The fish tank is in the shape of a cuboid. The diagram shows water in the tank. 30 cm 30 cm 100 cm Ma
lyudmila [28]

Answer: Yes, but only if he houses 37, 38, 39, or 40 fish

Anything larger than 40 and he'll need more room.

==========================================================

Explanation:

The tank is 30 cm by 30 cm by 100 cm. The volume is 30*30*100 = 90,000 cm^3 which is shorthand for "cubic centimeters".

We're told that 1000 cm^3 = 1 liter, which means the 90,000 cm^3 converts to (90,000)/(1000) = 90 liters.

The fish tank is 90 liters.

Since 1 gallon = 4.5 liters, this means the 90 liter tank converts to 90/(4.5) = 20 gallons

----------------------------

Your teacher mentions "He can keep 2 small fish for every 1 gallon".

Since the tank is 20 gallons, that means he can keep 20*2 = 40 fish. This value is larger than 36, so Matt is correct to a point. If Matt is thinking 37, 38, 39, or 40 fish then he would be correct. If Matt is wanting more than 40 fish, then he'll need a bigger tank.

In short, he can't have any number over 36 and can only have 4 specific values (the four values mentioned earlier).

So technically, Matt is correct, but strong clarification is needed.

4 0
3 years ago
Y=x 1 2y-2x=6 i cant under stand how to do this it always confuses me please help
e-lub [12.9K]
Is the question asking you to find x?


3 0
3 years ago
On a scale 5 cm is 12 yards. If the length is 30 yards, how many cm is this on the scale?
Scorpion4ik [409]

Answer:

12.5 cm I would believe

Step-by-step explanation:

30 divided by 12 is 2.5, 5 times 2.5 is 12.5

7 0
3 years ago
I need help with this math question
Butoxors [25]

Answer:

The base would be the same since it's the same number. (Base is 7).

You would then subtract 10 by 3 and you would get 7. Answer is 7 to the power of 2.

Hope this helps (:

7 0
3 years ago
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