MATHEMATICS MIDDLE SCHOOL

The top letter is “L”
Please help!! Answer correctly and no guessing, please!
jcherry99 avatar

Answers

Answer 1
Answer:

The first thing you must do is find KL. You use a^2 + b^2 = c^2 to do that.

Then you find the various sines and cosines and Tangents of the angles involved.

Step One

Find KL

a^2 + b^2 = c^2

c = 219

b = 178

a = ??

219^2 = 178^2 + a^2

47061 = 31684 + a^2

a^2 = 48061 - 31684

a^2 = 127.97

Step Two.

Find the sines and cosines of J and L

Choice A

Sin(J) =opposite/hypotenuse =   127/219 = 0.5799

Cos(L) = adjacent/hypotenuse = 127/219 = 0.5799

Conclusion Sin(J) = Cos(L) A is not true. Neither is bigger than the other.

Choice B

Choice B does exactly what Choice A did. The Sin of L is the same thing as the cos(J).

Choice C

C can't be true.

Tan(J) = opposite / Adjacent. = 127/178

Tan(L) = opposite / Adjacent = 178/127

One is larger than 1 and the other one is less than 1. They use the same values but in a different order.

D

We discussed this for choice A. So D is the correct answer
Answer 2
Answer:

First you need to find out what K and L's angle is

Step #1: Finding L's angle number

to do this you are going to subtract  219-178=?

answer should be 41.

Step #2: Desiding if J is Larger than L

Is 219 Larger than 41? or is 41 larger than 219?

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HELP ME FAST PLEASE, PLEASE

What is 402 rounded to the nearest ten

Answers

402  rounded to the tenth 
 4 would be your hundredth 
0 would be your  tenth 
2 would be your ones 
if your trying to figure out the tenth because it's a zero, it will still be zero 
your answer is 0 

How do I do this please show your work

Answers

g + 2g = 3g

r - 4r = -3r

47% of 70 estimated ????? help pleazzz

Answers

In summary, you just multiply the percentage (move the decimal twice to the left) by the amount, which is 70 in this case.

0.47 x 70 = 32.9

PLEASE HELP ME!!! VDUE AT 9 O'CLOCK !!!!!The coordinates below represent two linear equations.

How many solutions does this system of equations have?

Line 1
x y
–4 3
–2 4
Line 2
x y
0 8
2 6


A.
0

B.
exactly 1

C.
exactly 2

D.
infinitely many

Answers

I believe the answer is B. I graphed it and there was only one intersecting point

Explain how to subtract 247 from 538

Answers

Answer:

291

Step-by-step explanation:

subtract 247 from 538

In general, subtract a from b is written as b-a. 'a' is get subtracted from b

subtract 247 from 538

we need to subtract 247 from the number 538

So it can be written as

538-247=291

When we subtract 247 from 538 we got 291

subtract 247 from 538 gives us 291
You just subtract as normal:

247 - 538 =

But since 247 is smaller than 538, your answer will be negative 

247 - 538 = -291

What is 12/28 in smpilest form

Answers

3/7.. cause you divide by the greater common factor so you don't have to do much work..cause when you divide the numerator by 4 you get 3.. and if you divide the denomerater by 4 you get 7
it is 4 i believe
Hope this helps ;-)
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