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2 years ago

12

You can make one square with four toothpicks. Show how you can make two squares with 10 toothpicks and five squares with 12 toot

hpicks please help

1 answer:

dsp732 years ago

4 0

Answer:

by doing it the same way you did with the first one.

Step-by-step explanation:

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Moira solved a problem on the board. What error did Moira make and how can she correct it?

Sati [7]

Answer:

C

Step-by-step explanation:

What you do on one side of the equation, you do to the other. She added 10x on the right side and subtracted 10x on the left when she should have added 10x on both sides.

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3 years ago

The rent for an apartment goes down by $35 per month.<br><br> What integer represents the situation?

Liula [17]

are there any options? or no

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2 years ago

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What is the inverse of the function f(x) = 2x + 1?

BaLLatris [955]

Answer:

$f^{-1} = \frac{x-1}{2}$

Step-by-step explanation:

$f(x) = 2x+1$

<em>Replace it with y</em>

$y = 2x+1$

<em>Exchange the values of x and y</em>

$x = 2y+1$

<em>Solve for y</em>

$x = 2y+1$

<em>Subtracting 1 from both sides</em>

$2y = x-1$

<em>Dividing both sides by 2</em>

$y = \frac{x-1}{2}$

<em>Replace it by </em> $f^{-1}$

So,

$f^{-1} = \frac{x-1}{2}$

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3 years ago

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Some hot dogs come in packages of 8. Why would a baker of hot dogs buns package 7 hot dog buns to a package?

Solnce55 [7]

It would either be that they Miss-counted the hot dog buns that they put into each pack or that they put 7 buns on purpose

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2 years ago

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Use the quadratic formula to solve the equation. If necessary, round to the nearest hundredth.

Rzqust [24]

Answer:

a = 6 or 9

Step-by-step explanation:

The "a", "b", and "c" of the quadratic formula are the coefficients of a², a, and the constant term in the given equation:

... a = 2, b = -30, c = 108

Then the quadratic formula tells you the solutions are ...

... (-b ± √(b² -4ac))/(2a)

... = (-(-30) ± √((-30)² -4(2)(108)))/(2(2))

... = (30 ± √(900 -864))/4

... = (30 ± √36)/4

... = (30 ± 6)/4 = {24, 36}/4

... = {6, 9}

_____

The <em>a</em> variable should not be confused with the "a" that is used to name the coefficient of the square of the variable in the quadratic formula. If it is too confusing, rewrite one or the other. For example, you could write ...

... The solution to pa² +qa +r = 0 is ... a = (-q ± √(q²-4pr))/(2p)

where p=2, q=-30, r=108 in the given equation.

5 0

3 years ago