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4 years ago

I really don’t know this

Mathematics

1 answer:

mrs_skeptik [129]4 years ago

3 0

Answer:

Step-by-step explanation:

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What is 12 over 24 simplified?

Jet001 [13]

Answer:

1 over 2

Step-by-step explanation:

Just divide the lesser value until you have 1. Then divide the greater value by that number. Example:

2 over 6

Divide by 2

It becomes 1 over 3.

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3 years ago

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viktelen [127]

Answer:

just crop it ok

Step-by-step explanation:

I'm not sure ok

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3 years ago

Solve for p 2p - 5 = 9

Anestetic [448]

Answer:

p = 7

Step-by-step explanation:

2p - 5 = 9

(remove the 5 from each side by adding)

2p=14

(divide by 2 to isolate the variable)

p=7

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3 years ago

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How do you simplify 4/5

Sladkaya [172]

4/5 is in its simplest form.

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3 years ago

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On a cold day, hailstones fall with a velocity of 2i − 6k m s−1 . If a cyclist travels through the hail at 10i m s−1 , what is t

Paraphin [41]

Answer:

The velocity of the hail relative to the cyclist is $V_{hc}=-8\hat{i}-6\hat{k}$

The angle at which hailstones falling relative to the cyclist is $\theta = 36.86^\circ$

Step-by-step explanation:

Given : On a cold day, hailstones fall with a velocity of $2\hat{i}-6\hat{k}\text{ m/s}$ . If a cyclist travels through the hail at $10\hat{i} \text{ m/s}$ .

To find : What is the velocity of the hail relative to the cyclist and At what angle are the hailstones falling relative to the cyclist?

Solution :

The velocity of the hailstone falls is $V_h=2\hat{i}-6\hat{k}\text{ m/s}$

The velocity of the cyclist travels through the hail is $V_c=10\hat{i} \text{ m/s}$

The velocity of the hail relative to the cyclist is given by,

$V_{hc}=V_h-V_c$

Substitute the value in the formula,

$V_{hc}=2\hat{i}-6\hat{k}-10\hat{i}$

$V_{hc}=-8\hat{i}-6\hat{k}$

So, The velocity of the hail relative to the cyclist is $V_{hc}=-8\hat{i}-6\hat{k}$

Now, The angle of hails falling relative to the cyclist is given by

$\theta = \tan^{-1}(\frac{-6}{-8})$

$\theta = \tan^{-1}(\frac{3}{4})$

$\theta = 36.86^\circ$

So, The angle at which hailstones falling relative to the cyclist is $\theta = 36.86^\circ$

4 0

4 years ago