3 years ago

PLZ HELP ME!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!:(

1 answer:

8 0

Sorry for taking so long, it wont let me type a while ago. I have it all fix now hehe. I took a picture of my work, ask me if you still don’t understand.

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Solve for A ? <br><br> Anyone willing to help me :)

GrogVix [38]

Answer:

Step-by-step explanation:

Use the cosine law:

$BC^2=AB^2+AC^2-2(AB)(AC)\cos(\angle A)$

We have:

$BC=a\\\\AB=4\\\\AC=3\\\\m\angle A=32^o\to\cos32^o\approx0.848$

Substitute:

$a^2=4^2+3^2-2(4)(3)(0.848)\\\\a^2=16+9-20.352\\\\a^2=4.648\to a=\sqrt{4.648}\\\\a\approx2.2$

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Juli2301 [7.4K]

Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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3 years ago

Simplify The Expression<br> (2n−9)−5(−2.4n+4)

Jlenok [28]

Answer:

14n-29

Step-by-step explanation:

Remove the unnecessary parenthesis around the (2n-9)

(2n-9)-5(-2.4n+4)

Distribute the -5 into the -2.4n+4

2n-9-5(2.4n+4)

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Combine like terms

2n-9+12n-20

14n-9-20

14n-29

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Marlow wants to know how many students in his school enjoy watching the TV news. He asks all 27 students in his art class and fi

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Yes it’s valid because he asked all 27 students In his art class

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