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kolbaska11 [484]
3 years ago
8

9. If the area of a square is given by the polynomial 4x2 – 36x + 81, then which of the

Mathematics
1 answer:
AnnyKZ [126]3 years ago
3 0

Answer:

If the area of a square is given by the polynomial 4x2 – 36x + 81, then which of the

following expressions represents the length of one side of the square?

A 2x -9

B

2x + 9

C 4x - 18

D 4x + 18

Step-by-step explanation:

answer 4x+18

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NEED HELP IN THREE MATH QUESTIONS
RUDIKE [14]
I can'r see the problem
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3 years ago
X + y = 152,<br><br> 8.5x + 12y = 1,656<br><br> How many hats were sold?
Elodia [21]

Answer:

x = 48 and y = 104

Step-by-step explanation:

Given equations are:

x+y = 152\\8.5x+12y=1656

From equation 1:

x = 152-y

Putting the value of y in equation 2

8.5(152-y)+12y = 1656\\1292-8.5y+12y = 1656\\3.5y+1292 = 1656\\3.5y = 1656-1292\\3.5y = 364\\\frac{3.5y}{3.5} = \frac{364}{3.5}\\y = 104

Now we have to put the value of y in one of the equation to find the value of x

Putting y = 104 in the first equation

x+y = 152\\x+ 104 = 152\\x = 152-104\\x = 48

Hence,

The solution of the system of equations is x = 48 and y = 104

The value of variable which was assumed for number of hats, is the total number of hats.

6 0
2 years ago
What is 0.33333333333 as a fraction?
m_a_m_a [10]
0.333.... as a fraction is 1/3.
3 0
3 years ago
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In Jamie's town, there are 42,812 adults and 12,358 children. About how many more adults than children are in Jamie's town?
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Answer:

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subtraction on a calculator

42812-12358=30454

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Kevan is 8
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I think this is the answer.
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