Answer:
Surface area is the total area of the surface of a three-dimensional object.
Step-by-step explanation:
For example,
Like a cubes surface area is the area of all the faces added together
<span>To answer this question, you need to make a list of the condition that has to be met.
To made it easier, let say for number 54,321 = ed,cba
a=1 (oneth)
b=2</span>(tenth)<span>
c=3(hundreth)
d=4(thousanth)
e=5(tenthousanth)
Condition that doesn't refer each other should be put on top
1. The number has seven digits.
</span><span>2. None of the digits are zero
</span>3. The number is between 1,000 and 10,000 (mean e=1 or e=0. notice that e can be 0 because it the last digit so it if it 0 then it won't be written)<span>
Then the condition that refers each other should be:
4. The digit in the tenths place is %150 of the digit in the thousands place.(b= 1.5d)
5. The digit in the hundredths place is 6/5 of the sum of the digits in the tenths place and the digit in the thousands place.[c= 6/5(b+d)]
6. The sum of all the digits in the number is 17. (a+b+c+d+e=17)
Inserting number 4 into number 5 would result
c=6/5(1.5d+d)
c= 6/5(2.5d)
7. c=3d
From here you can convert b into d(equation 4) and convert c into d(equation 7). If you insert both into equation 6 it would be:
a+(1.5d)+(3d)+d+e= 17
a+ 5.5d+e=17
</span>From equation 4 (b= 1.5d) it is clear that d cannot be an odd number because the result will have 0.5(digit shouldn't have fraction).
<span>From this point, it is clear that d should be 2 because 3 would result in 0.5 number and >4 will exceed 17 and 1 are odd number. (remember no 0 allowed).
</span><span>Put d=2 into equation 7 will result:
</span>a+ 5.5(2)+e=17<span>
a+e= 17-11
a+e=6
since e possibility only 0 and 1, then a possibility is only 5 or 6. The list would be:
12,635
2,636
</span>
Answer: (6,-3)
Explanation:
(1) 2
x-3y=21
(2) y
=
3
−
x
Substituting eq 2 in eq 1
2
x
−
3
(
3-x)=21
2
x-9+3x=21
5
x
−
9
=
21
5
x
=
30
x
=
6
Put x=
6 in eq 2 we get,
y
=3
−
6
y
=
−
3
Solution : (
6
,
−
3
)
Step-by-step explanation:
In the picture it shows which quadrant is which. Now we can just mark the dots to figure it out using this representation.
W: quadrant 3
M: x axis
C: quadrant 1
K: quadrant 4
Hope that helps!