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3 years ago

I really need help with these questions, i don’t even have a clue how to do these.

Mathematics

1 answer:

Anuta_ua [19.1K]3 years ago

3 0

Answer:

231

Step-by-step explanation:

because the whole circle has an area of 360 so on the right side there is half and a little more so you would cut it in half so you have 180 and on the right side you still have a little left so thats about 10 so now you have 190 then you add 21 +20 you have 41 +190 =231 hope this helps

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Thepotemich [5.8K]

Answer:

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Step-by-step explanation:

a polynomial equation of the second degree.

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3 years ago

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3 years ago

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Solve the system of equations using subtraction. 4x - 2y = 10 4x + y = 19

Alex777 [14]

Answer:

y=3 x=4

Step-by-step explanation:

4x - 2y = 10

4x + y = 19

-3y=-9

the 4x canceled out.

y=3

plug in y into one of the equations

4x + 3 = 19

4x=16

x=4

Hope this helps!

If not, I am sorry.

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2 years ago

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An airplane flies due north from ikeja airport for 500km.It then flies on a bearing of 060 from a further distance of 300km befo

Nata [24]

Answer:

482 km

63.94 degrees

Step-by-step explanation:

to solve this question we will use the cosine rule. For starters, draw your diagram. From point A, up north is 500km and 060 from there, another 300. If you join the point from the road junction back to the starting point, yoou have a triangle.

Cosine rule states that

C = $\sqrt{A^{2} + B^{2} -2AB cos(c) }$