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Klio2033 [76]
3 years ago
6

The number $12345678910111213..........979899 consists of all the integers from 1 through 99 written back to back. That's a very

big number! Is it a multiple of 9?
Mathematics
1 answer:
matrenka [14]3 years ago
6 0
No. I don't think so. Sorry if I am wrong
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4+(-3)+5+(-2)= Please show work
son4ous [18]
So, adding a negative number is the same as subtracting.

4-3+5-2

Then if you want, you can use the associative property.
(4-3)+(5-2)
1+3

4
4 0
3 years ago
Plz help me with this
goldenfox [79]
Area of triangle=1/2(base×height)
360=1/2((4x-2)(7x+5))
720=(4x-2)(7x+5)
FOIL the binomial
720=28x^2+6x-10
Bring 720 to the other side
28x^2+6x-10-720=0
28x^2+6x-730=0
Factor 2 out
2(14x^2+3x-365)=0
Factor 2(14x+73)(x-5)=0
x-5=0
x=5
It can't be 14x-73=0 because the length can't be negative.
You're welcome.
5 0
3 years ago
The volume of a right circular cone that has a height of 18.9 ft and a base with a radius of 15.8 ft.
Elden [556K]
The answer is 783.8696
6 0
3 years ago
3k^2+12k-7kn-28n square meters and a length of 3k-7n meters.
melomori [17]

Step-by-step explanation:

here ! I used the formula area = length × width

and just some algrbric expressions solving

4 0
2 years ago
Can someone please help me with atleast one and explain how to do it
Anna [14]
There's a couple ways to do this. These look like special triangles to me. Which should be the 30 60 90 triangle's which have the same ratios for their legs. The legs will always be square root three and one and the hypotenuse of two - I can't see what I'm typing for some reason so I will finish in a comment
3 0
3 years ago
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