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mamaluj [8]
3 years ago
5

A student concludes that the solution to the equation ( 2×+1+3=0 is×=4

Mathematics
1 answer:
Slav-nsk [51]3 years ago
4 0

Answer:

x = -2

Step-by-step explanation:

2x + 1 + 3 = 0

2x + 4 = 0

x = -2

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Simplify -6 to the power of 2 divided by 12- 2(-7).
Ilia_Sergeevich [38]

Answer: 18

Step-by-step explanation: -36 / -2 simply

3 0
4 years ago
Please help, thank you! ​
DochEvi [55]

we know angle RLP= 100⁰

also

angle RLP+ angle RLB=180⁰(Linear pair)

=>100⁰+angleRLB= 180⁰

=> angle RLB=80⁰

since BR and LR are equal, angle RBL and angle RLB are equal

therefore angle RBL is also equal to 80⁰

using angle sum property of triangles we know that the sum of all angles in a triangle is equal to 180⁰

=>angle BRL+angle RBL+angle RLB= 180⁰

=> angle BRL+80⁰+80⁰=180⁰

=>angle BRL = 180⁰-160⁰

=>angle BRL= 20⁰

I'm sorry it took me some time I'm a slow typer

4 0
3 years ago
Read 2 more answers
the second term in a geometric sequence is 12. the fourth term in the same sequencce is 4/3. what is the common ratio in this se
nordsb [41]
Geo is
an=a1r^(n-1)

2nd term is 12
4th term is 4/3

a2=a1r^(2-1)=12
a2=a1r=12

a4=a1r^(4-1)=4/3
a4=a1r^3=4/3

we have
a1r=12 and a1r^3=4/3
(a1r^3)/(a1r)=r^2=(4/3)/12=1/9

1/9=r^2
sqrt oth sides
1/3=r

the common ratio is 1/3
5 0
4 years ago
How do I find a remainder whoth slot of numbers​
Aleonysh [2.5K]
Huh?? I’m confused about the question
8 0
3 years ago
I beg for help where are the geniuses?
KatRina [158]

Answer:

CB = sqrt62

Step-by-step explanation:

The pythagorean theorem will help with this! First take triangle ACD, AD^2 + CD^2 = AC^2. Plug in, AD^2 + 16 = 25. AD^2  = 9. AD = 3. I'm not exactly sure how to find DB, but I can assume it's double of AD< so 6. We know CD is 4, so  4^2 + 6^2 = CB^2. 16 + 36 = CB^2. CB = sqrt62

Sorry if this isn't exactly right, there's no exact way to find DB.

7 0
3 years ago
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