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chubhunter [2.5K]
2 years ago
10

Cho m là tham số. Tìm điều kiện của m để phương trình x^2+2(m+1)+m+3=0 có nghiệm kép

Mathematics
1 answer:
madam [21]2 years ago
4 0

Answer:

1234 Get On The Dance Floor

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Find the conjugate and product of<br><br>2-i5 ​
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Answer: 2+i5,\ 29

Step-by-step explanation:

Given

Complex number is 2-i5

Its conjugate is obtained by changing the sign of the original number i.e. 2+i5

The product of the two numbers is

\Rightarrow (2-i5)(2+i5)=2^2-(5i)^2\quad \quad [(x+y)(x-y)=x^2-y^2]\\\\\Rightarrow (2-i5)(2+i5)=4-25i^2\\\\\Rightarrow (2-i5)(2+i5)=4+25=29

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If (−7, m) is on a circle with center c(3, 5) and radius 10, what is the value of m? m = 5 m equals negative five plus two squar
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{(x - 3)}^{2}  +  {(y - 5)}^{2}  = 100 \\ 100 +  {(y - 5)}^{2} = 100 \\ y = 5
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3 years ago
A square has a perimeter of 52cm , what is the area ?
UNO [17]

✧・゚: *✧・゚:*    *:・゚✧*:・゚✧

                  Hello!

✧・゚: *✧・゚:*    *:・゚✧*:・゚✧

❖ The area is 169 square cm.

Find the value of each side (a square has 4 sides so divide by 4 ):

52/4 = 13

To find the area of a square, you only need 2 sides so multiply 2 sides:

13 x 13 = 139

Area = 139 square cm

~ ʜᴏᴘᴇ ᴛʜɪꜱ ʜᴇʟᴘꜱ! :) ♡

~ ᴄʟᴏᴜᴛᴀɴꜱᴡᴇʀꜱ

4 0
2 years ago
Please for brainliest do it as quick as possible
nika2105 [10]

Answer:

54

Step-by-step explanation:

8(11 - 3) - 2(4 + 1)

11 - 3 = 8

4 + 1 = 5

8(5) - 2(5)

8 * 5 = 64

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64 - 10 = 54

8 0
3 years ago
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How to express numbers in standard notation
Ne4ueva [31]
Five Hundred is in word form to put it in standard notation, we just write he number like so 500.


3 0
3 years ago
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