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lara31 [8.8K]
3 years ago
12

Forgot to add attachment :'> ight 7th grade math 25 points each thank you

Mathematics
1 answer:
ad-work [718]3 years ago
7 0

Answer:

-7 and -5

Step-by-step explanation:

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I need help on these problems I'm not good in mathematics
Monica [59]
Well u could make a tree with the 2 numbers on top so one of the numbers on one tree and the other number on the other and then make a triangle so if the 2 numbers are 12 and 8 then you would put 8 on one and 12 on the other and then put a triangle under the 2 numbers and then lis the 2 numbers that multiply to get those answers so for 8 it would be 2 and 4 you would circle the 2 because it has nothing that can be multiplied to get it and keep going with 4 and get 2 and 2 and then circle the 2s then make a table and put the 2 2s in one column and then put the other 2 in another column then bring one number down from each column and multiply them together and you will get your answer if there are all different numbers then put them in all separate columns. Hope this helped!
7 0
4 years ago
Draw algebra tile models to prove that 4+8x and 4(2x+1) are equivalent
irina [24]
4*(2x+1)=(2x+1)+(2x+1)+(2x+1)+(2x+1)=
2x+2x+2x+2x+1+1+1+1=
=8x+4
I hope this is ok !
4 0
4 years ago
Rewrite for two solutions: (x – 3) = 11, –(x – 3) = 11  
ANEK [815]

Answer:

x= 14, x=-14

Step-by-step explanation:

All you have to do is combine like-terms:

x-3=11

x=11+3, x=14

and,

-x-3=11

-x=11+3

-x=14 multiply by -1 so x can be positive,

x=-14

<em>Hope this helped and plz mark as brainliest!</em>

<em></em>

<em>Luna G.</em>

3 0
4 years ago
At Ole's Waffle Shop there are 81 dirty coffee mugs and 9 clean coffee mugs. How many total mugs are there?
Luden [163]
90. 9. 81 hope this helps
8 0
3 years ago
Solve for x in the triangle<br> A 25.6<br> B 27.8<br> C 45.6<br> D 64.4
labwork [276]

Answer:

The measure of angle x is 64.4\°

Step-by-step explanation:

To find the measure of angle X, apply the law of cosines

The law of cosines states that

c^{2}=a^{2}+b^{2}-2(a)(b)cos(C)

In  this problem we have

a=19\ cm

b=25\ cm

c=24\ cm

C=x\°

substitute

24^{2}=19^{2}+25^{2}-2(19)(25)cos(C)

576=986-950cos(C)

cos(C)=(986-576)/950

C=arccos[(986-576)/950]=64.4\°

Therefore

The measure of angle x is 64.4\°

7 0
4 years ago
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