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ahrayia [7]
3 years ago
5

There are 22 chairs in the classroom. 7 of the chairs are wood. The rest are plastic. How many chairs are plastic

Mathematics
1 answer:
timama [110]3 years ago
5 0

Answer:

15

Step-by-step explanation:

22-7=15

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Math help please i will mark brainliest!!!!!
mel-nik [20]

Answer:

The second choice is the correct one.

Step-by-step explanation:

20x^4 - 45x^2

GCF is 5x^2, so the factors are:

5x^2( 4x^2 - 9)

Now 4x^2 - 9 is the differencr of 2 squares:

4x^2 - 9 = (2x + 3)(2x - 3)>

4 0
3 years ago
Percy said that any real number for k would cause the system of equations to have no solution. Explain the error in Percy’s stat
MatroZZZ [7]

Answer:

Except k=7, any real number for k would cause the system of equations to have no solution.

Step-by-step explanation:

In general a system of equations can be represented as ax+by=c and dx+ey=f. In order this system of equations to have NO SOLUTIONS a/d=b/a≠c/f. In our example a=6, b=4, c=14, d=3, e=2 and f=k. To apply the formula above, 6/3=4/2≠14/k. Hence k≠7. It can be concluded that except k=7, any real number for k would cause the system of equations to have no solutions.

Just for information, if k=7 the system will have infinitely many solutions.

5 0
2 years ago
Read 2 more answers
Rope A is longer than rope C but shorter than rope B rope d is shorter than rope c
liberstina [14]

Answer:

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4 0
2 years ago
Rewrite the following expression in logarithmic form and use that to solve for the variable. Show all work done in this process.
Llana [10]

Answer:

ln(e^x)=ln(3)

x=1.099

Step-by-step explanation:

You have the following exponential expression:

2e^x=6

You need to divide both sides of the equation by 2:

\frac{2e^x}{2}=\frac{6}{2}\\\\e^x=3

Now apply the function Natural logarithm to both sides of the function:

ln(e^x)=ln(3)

Note that now the exponential function is transformed into a logarithmic function.

By definition:

ln(e^x)=x Because the base of the Natural logarithm is the Euler's number "e".

Then you can solve for "x":

x=ln(3)\\x=1.099)

7 0
2 years ago
Segment FG begins at point F(-2,4) and ends at point G(-2,-3). The segment is translated by and then reflected across the y axis
svet-max [94.6K]
Segment  F'G'  is 7 units long,
just like segment  FG is .

Dilation is the only transformation
that changes the size of anything.

Translation and reflection don't change anything
except the locations of things.
8 0
2 years ago
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