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3 years ago

In a sport competition Alyssa was penalized -16 points in each of the 4 events how many points was she penalized in each event?

Mathematics

1 answer:

borishaifa [10]3 years ago

5 0

-4 because -16-4=-4. Negative and a positive make a negative

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How do you convert joules to kJ

jek_recluse [69]

Answer:

Divide by 1000.

Step-by-step explanation:

For example, 1 joule is 0.001 kilo joule.

1 divided by 1000 is 0.001.

If there were 30 joules, there would be 0.032 kilo joules.

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2 years ago

Which expression could be used to model the total cost for producing ballon banquets

bearhunter [10]

I believe the answer would be c

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3 years ago

I need help with this. Plz help me?

avanturin [10]

The answer is 110 because 40+30=70 and when you add 110 you get 180 so that is the answer

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3 years ago

Brainlist if you get it right

denpristay [2]

Experimental probability: 10/50

Percentage: 20%

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3 years ago

Three forces act on a hook. Determine the magnitude of the resultant of the force.

Novay_Z [31]

Use Hooke's law... (just kidding)

Break down each force vector into horizontal and vertical components.

$\vec F_1=(1000\,\mathrm N)(\cos30^\circ\,\vec x+\sin30^\circ\,\vec y)\approx(866.025\,\mathrm N)\,\vec x+(500\,\mathrm N)\,\vec y$

$\vec F_2=(1500\,\mathrm N)(\cos160^\circ\,\vec x+\sin160^\circ\,\vec y)\approx(-1409.54\,\mathrm N)\,\vec x+(513.03\,\mathrm N)\,\vec y$

$\vec F_3=(750\,\mathrm N)(\cos195^\circ\,\vec x+\sin195^\circ\,\vec y)\approx(-724.444\,\mathrm N)\,\vec x+(-194.114\,\mathrm N)\,\vec y$

The resultant force is the sum of these vectors,

$\vec F=\displaystyle\sum_{i=1}^3\vec F_i\approx(-1267.96\,\mathrm N)\,\vec x+(818.916\,\mathrm N)\,\vec y$

and has magnitude

$|\vec F|\approx\sqrt{(-1267.96\,\mathrm N)^2+(818.916\,\mathrm N)^2}\approx1509.42\,\mathrm N$

The closest answer is D.

5 0

3 years ago