So x= 3, y= 7
3/7 = 12/21
Which number times 3 is equal 12
3(4) = 12
So 7(4) = 28
X= 12 , y= 28
-3x^2+8xy+8x-4y^2+16y
hope i didnt mess up and that this hope
Answer:
B. 40
Step-by-step explanation:
It looks like a 90-degree angle so...
90 - 30 = 60
60 - 20 = 40
40 would be your final answer.
I'll walk you through the first one, and then you should be able to do the rest.
The first step is to right out your numbers from least to greatest
Problem #1: 2,4,5,6,8,10,13,17,19,20
To find the MEDIAN, you're simply crossing out a number from each end until you meet in the middle. In this case, you have an even number of data, which means once you get to the middle, you're have to find the average.
In this problem, your two middle numbers are 8 & 10. Since only one number can be the median, you add them together, and divide by 2:
8+10=18 18/2=9 < this is your middle, or MEDIAN
Next, your first and third quartiles-- they're the median of the lower half and data, and upper half.
For the lower quartile, find the mean of 2,4,5,6, and 8. again, cross out one from each side until you get to the middle. FIRST QUARTILE = 5
Do the same process for the upper half of data (10,13,17,19 & 20).
THIRD QUARTILE = 17
The MIN is the lowest number of data = 2
The MAX is the highest number of data = 20
Best of luck!
Alright, let's begin! We start with 37.8 and then divide it with..7.6! Now, we try to get the answer of that.
37.8 ÷ 7.6 = 4.973.
However, we need to bring it down to an estimate. It would then be 4.97. Although, we need to also see if our answer is correct.
4.97 × 7.6 = 37.7
There is more answers closer to the number but this should be the correct answer due to it being the answer of all the steps I used.
But wait! We need the round the answer to the nearest whole number. So, it would be 38.
So, overall, it will be 38 cotton swabs tall.
Hope this helps!
If you are needing any other help, tell me in the comments below this answer! If you want any contact tell me and I'd be glad to help.
