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vlada-n [284]
3 years ago
5

Need Helpppp :) Appropriate Answers Only

Mathematics
2 answers:
enyata [817]3 years ago
6 0
Hello,
Please, see the detailed solution in the attached file.
Thanks.

zhannawk [14.2K]3 years ago
4 0
1) You have:
 Cos(50°)=adjacent/hypotenuse
 Cos(50°)=XY/8
 Solve for XY:
 XY=8Cos(50°)
 XY=8 cm
 The answer is 8 cm

 
2)The angle m∠A is:
 Cos^-1(m∠A)=8/15
 m∠A=57.76°

 The angle m∠C is:
 Sin⁻1(m∠C)=8/15
 m∠C=32.23°

 The approximate difference is:
 m∠A-m∠C≈25.53°

 The answer is: The approximate difference between m∠A and m∠C is 25.53°.
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I'd sure hope others know how to do this..
ivann1987 [24]

Answer:

omgg they literally deleted 10 x 5

Step-by-step explanation:

it's 50, I'll be the calculator fam

5 0
3 years ago
Dustin has only nickels and quarters in his piggy bank. He has 49 coins total for a combined value of $8.85. How many of each ty
eduard
Well obviously quarters equal 25 cents.  So you have to divide the 8.85 by 25 first.  That means he could have 35 quarters.  That least the rest as being dimes.  So find the remaining amount of the 8.85.  If you have 35 quarters that's $8.75.  And 8.85 minus 8.75 is 10 cents.  which would be 2 nickels.  That only adds up 37 coins.  So you break down one of the 25.  That would mean 5 more coins could be nickels.  Add 37 and 5 to get 42.   Do it again.  25 cents in nickels would be 5 more coins.  would be 46.  that would be missing 2 coins. But don't forget you're also subtracting from the 35 quarters. Now you would technically have 12 nickels and 33 quarters.  So you can do it one more time.  32 quarters means there is $8 in quarters at this point.

Now add you have 12 nickels, and you made 5 more.  That's 17 nickels.  That equals 85 cents.  So add 17 and 32 to be sure you have 49 coins, which you do. 


So 17 nickels, 32 quarters to equal 49 coins and $8.85

(sorry some of it got mixed up above because I was forgetting to subtract the quarters from the total as I changed them to nickels, so pay attention to the end)
8 0
3 years ago
In the data set below, what is the mean absolute deviation?4461526If the answer is a decimal, round it to the nearest tenth.mean
bixtya [17]
I assume that the numbers are: 4,4,6,1,5,2,6
If so, then the MAD is 1.43

To find the MAD, you first find the mean of the list. It is 4.
Then find the absolute difference of each number from the mean.

Those values are: 0,0,2,3,1,2,2
Now find the mean of those numbers and you have about: 1.43
5 0
3 years ago
Help help help help help
e-lub [12.9K]

Answer: E: 100%

Step-by-step explanation:

If the class average is currently 70% and she wants to increase it by 10% every week for 3 weeks, 10×3=30% and 70+30= 100%.

PS- It would mean the world to me if you could mark me brainliest!

I am not a professional, I am simply using prior knowledge!

7 0
2 years ago
What is the equation of the line shown in this graph?
Grace [21]

Answer:

x=-2

Step-by-step explanation:

It is a straight line when x=-2 :)

8 0
3 years ago
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