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4 years ago

I don't understand trig at all can someone just explain how to do anyone of these

Mathematics

1 answer:

gavmur [86]4 years ago

8 0

SOH CAH TOA
s = opposite/ hypotenuse c= adjacent/hypotenuse t= opposite/adjacent

the side opposite from the angle is the " opposite "
the longest side is the "hypotenuse"
the side thats left over is the adjacent

for example for question one:
the given angle is 38 with a given opposite length of 12.5 so if you are trying to figure out the hypotenuse you'd plug into the calculator sin(38)12.5 this would give you the length of the hypotenuse. if you are trying to find the adjacent angle you would use tan(38)12.5 i hope this helps. i loved learning trigonometry in geometry!

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Can someone help me out here please.

denis23 [38]

Answer:

im sorry but i have no clue what this is:(

Step-by-step explanation:

7 0

3 years ago

Please help me , idk the answer

solmaris [256]

Hello!

The answer is 20.

On the left side of the table, you are counting by 1's so of course its going to be 0,1,2,3. Now, on the right side of the table, you are counting by 5's so its going to be 5,10,15,20.

Hope I helped!!!!

-boribaby

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4 years ago

Find the equation of the line through the point (–2, –2) that is perpendicular to the line y = 2x – 1.

lawyer [7]

Hi student, let me help you out!

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Perpendicular lines have slopes that are <u>opposite inverses </u>of each other.

The opposite inverse of 2 is $\mathrm{-\cfrac{1}{2}}$ .

Now let's stick in this number into the equation $\mathrm{y=mx+b}$ :

$\mathrm{y=-\cfrac{1}{2}x+b}$ . Let's carry out several operations to determine the y intercept.

First, let's stick in -2 for x and y (Do you remember that the line passes through (-2,-2)? We're given that piece of information.)

$\mathrm{-2=-\cfrac{1}{2}\times(-2)+b}$ .

You are probably thinking, "Why did you do that and just complicate things?" Wait for it! ^-^

Upon simplifying this, we obtain: $\mathrm{-2=1+b}$ . See, it's nice and smooth now.

One last operation remains. We need to subtract 1 from both sides: $\mathrm{-3=b}$ .

∴, the equation of the line is: $\mathrm{\underline{\boxed{y=-\cfrac{1}{2}-3}}}$

Hope this helped you out, ask in comments if any queries arise.

Best Regards!

$\star\bigstar\underline{\underline{\overline{\overline{\bold{Reach\:Far.\:Aim\:high.\:Dream\:big.}}}}}\bigstar\star$

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2 years ago

Last week Laura volunteered at the community cleanup event and her two patches for her school uniform she spent four minutes doi

kogti [31]

Answer:

12 minutes

Step-by-step explanation:

Time spent for 2 patches = 4 minutes

Time spent for 1 patch = 4 / 2 = 2 minutes

Time spent for 6 patches = 2 x 6 = 12 minutes

8 0

3 years ago

What is 90% of 50?<br> Show all work

Natali [406]

First find out what 10 percent of 50 is
Do 50/10
I got 5
Then do 5 times 9 to get your answer
You should get 45. Thanks (:

8 0

3 years ago

Read 2 more answers