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sladkih [1.3K]
3 years ago
8

1. How many solutions are there for the equation? x2 + 16 = 8x (Points : 1)

Mathematics
2 answers:
Dmitrij [34]3 years ago
4 0
x^2 + 16 = 8x\\\\x^2-8x+16=0\\\\x^2-4x-4x+16=0\\\\x(x-4)-4(x-4)=0\\\\(x-4)(x-4)=0\\\\(x-4)^2=0\ \ \ \Leftrightarrow\ \ \ x-4=0\ \ \ \Leftrightarrow\ \ \ x=4\\\\ Ans.\ One\ solution
defon3 years ago
3 0
Every equation that has an ' x² ' in it has two solutions.

If it's a perfect square, then the solutions are equal, and they look like only 1.

Both solutions to this equation are [ x = 4 ] .
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Answer:

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Step-by-step explanation:

7 0
3 years ago
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marco needs to buy some cat food. At the nearest store, 3 bags of cat food cost 13.50. How much would Marco spend on 5 bags of c
eimsori [14]

Answer:

$22.50

Step-by-step explanation:

if 3 bags of cat food = 13.50, divide 13.5 by 3 to get the cost of one bag, which is $4.50.

since hes getting 5, we can use 13.50 once and then the price of one bag (4.5) twice for the other two.

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hope this helped :)

5 0
3 years ago
Read 2 more answers
you mix (5)/(8)of a cup of wheat flour with 1 (3)/(4)cups of white flour. Do you have enough flour for a recipe that calls for 2
swat32
5/8+1 3/4
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5 0
3 years ago
Help me! Read the question carefully
prohojiy [21]

Answer:

21mm

Step-by-step explanation:

The formula for solving the area of a rhombus is : \frac{1}{2}xy, where x and y are two intersecting diagonals.

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(6 * 7) / 2 = 21

The area of the rhombus is 21mm.

5 0
3 years ago
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