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mash [69]
3 years ago
15

How many real solutions does the equation y2− 8y + 16 = 0 have?

Mathematics
1 answer:
saveliy_v [14]3 years ago
4 0
We can solve this equation by completing the square. Notice that 4*2=8 and 4^{2}=16. Therefore, we can turn y^{2}-8y+16=0 into (y-4)^{2}=0. y, in this equation, only has one real solution: 4. So your answer would be (B).
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Plz help due tonight
rusak2 [61]

Answer:

The bottom left square of the triangle in 90 degrees always so take 90 + 40 giving you 130,

a Triangle has 180 degrees in total so 180 -130 = 50 degrees for the last side

5 0
2 years ago
Read 2 more answers
Michelle deposited $1,385 into a savings account with a simple interest rate of 2.89% per year. If Michelle does not touch the f
aniked [119]

Answer:

$1,665.19

Step-by-step explanation:

Interest=PRT/100 where P is the principal amount deposited by Michelle, R is the rate offered per year in terms of percentage, T is the period in years

Substituting P for $1385, T for 7 years, R for 2.89% we obtain interest as follows

Interest=$1,385*2.89*7 years/100=$280.1855

Balance after 7 years will be the sum of principal amount and interest gained

Balance=$1,385+$280.1855 =$1,665.1855

Rounding off to 2 decimal places

Balance=$1665.19

Therefore, Michelle's balance is $1,665.19

4 0
3 years ago
If the length of a diagonal of a square is a, what is the length of its side
tankabanditka [31]
The same as the diagonal of a square.
Hope this helped!
8 0
4 years ago
An integer is 5 more than 4 times another. If the product of the two integers is 51, then find the integers.
Yakvenalex [24]

Answer:

  • <u>3 </u><u>and</u><u> 17</u> are required integers

Step-by-step explanation:

  • Let one integer be x
  • And other integer be y

x = 4y + 5

xy = 51

<u>According to </u><u>question </u><u>:</u>

➞ (4y + 5)y = 51

➞ 4y² + 5y = 51

➞ 4y² + 5y - 51 = 0

➞ 4y² + 17y - 12y - 51 = 0

➞ y (4y + 17) - 3(4y + 17) = 0

➞ (y - 3)(4y - 17) = 0

➞ y - 3 = 0

➞ <u>y = 3</u>

Hence,

➞ <u>y = 3</u>

➞ x = 4y + 5

➞ x = 4 (3) + 5

➞ x = 12 + 5

➞<u> </u><u>x = 17</u>

∴ The required integers are <u>3 and 17</u>

7 0
2 years ago
Which of the following equations correctly represents the law of sines?
nignag [31]
It seems as if D is the answer
The law of sines is usually written as
[sin (A) / a] = [sin (B) / b] which can be manipulated algebraically as
[b * sin (A) / sin (B)] = a


8 0
3 years ago
Read 2 more answers
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