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Rudik [331]
3 years ago
10

I need help fast !!!

Mathematics
2 answers:
Volgvan3 years ago
6 0
The answer is D, that is negative
aivan3 [116]3 years ago
4 0

Answer:

D

Step-by-step explanation:

By definition:

rational number = fraction or decimals that are non-whole numbers

negative = well..... negative numbers have a minus (-) in front of them.

Looking at the options, only D has a fraction that has a (-).

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In ∆ABC, point D is the centroid. If (AE) ̅=15, (BF) ̅=27, and (CD) ̅=8, find the following lengths
Anna71 [15]

Answer:

5,18,12 cms are the answer.

Step-by-step explanation:

Given is a triangle ABC.  Point D is the centroid.  

E,F and G are midpoints of CB, BA and AC respectively.

AE, BF and CG are medians of the triangle.

We know that centroid divides the median in the ratio 2:1

Using this we find that AD:DE = 2:1

Or AD+DE:DE = (2+1):1

AE:DE =3:1

15:DE = 3:1 . Hence DE =5 cm.

On the similar grounds we find that DF = 1/3 BF = 9

Hence BD = DF-BF = 27-9 =18 cm

and also

CG = 3/2 times CD = 12 cm.

7 0
3 years ago
How to write (8x100,000)+4x1,000)+(6x1) in word form
BARSIC [14]

Answer:

eight hundred four thousand six or eight hundred four thousand and six

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
6x + 3y = 33 4x + y = 15 A. x = 2, y = 7 B. x = -13, y = 7 C. x = - 2 3 , y = 12 2 3 D. x = 5, y = 1
klio [65]

6x+3y=33..........(1)

4x+y=15

y=15-4x.........(2)

substitute value of y from (2) in (1)

6x+3(15-4x)=33

distribute 3 over the bracket

6x+45-12x =33

-6x=33-45

-6x=-12

x=2

plugging this value of x in equation 2 we get

15-4x=y

15-4(2)=y

y=15-8

y=7

Answer is x=2 and y=7

3 0
3 years ago
A different children's party cost £225.50 How many children were at the party?​
Alecsey [184]
Hi, I think you forgot to write a part of the problem, could you write the rest in the comments please. I would be happy to help you
8 0
3 years ago
I CANT DLEETE THIS HELP
larisa86 [58]

Answer:

u can not delete it because u already posted it the only way for it to be deleted is if u are reported for what u post then the moderators see it and make it poof

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
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