3 years ago

If using the method of completing the square to solve the quadratic

Mathematics

1 answer:

In-s [12.5K]3 years ago

4 0

Answer:

100

Step-by-step explanation:

20/2= 10 and 10 squared is 100 but you have to move the -6 to the opposite side

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Which expression does the graphic represent? 8 positive tiles. 1 tile is crossed out. 7 minus 1 7 minus (negative 1) 8 minus 1 8

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Answer:

7-(-1)

Step-by-step explanation:

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at the craft store , alan bought a bag of orange and green marbles. the bag contained 25 marbles, and 40% of them where orange.

Kazeer [188]

Answer:

There are 10 orange marbles

Step-by-step explanation:

There are 25 marbles in the bag

40% are orange

To determine the number of orange marbles, we multiply the total number of marbles by the percent that are orange

25 *40% = number of orange marbles

25*.40

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Each leg of 45 degree -45 degree -90 degree triangle measure 12 cm what is the length of the hypotenuse

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A = b = 12 cm

<span>Pythagorean theorem
</span>
$a^2+b^2=c^2\\\\ c^2=a^2+a^2\\\\ c^2=2a^2\\\\ c=\sqrt{2a^2}$

$c=a\sqrt2$ formula

$c=12\sqrt{2} \ (cm)$ <-- Answer

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4 years ago

What is an simplified expression for 8a-(-3-5a)-2a?

bogdanovich [222]

Answer:

The answer is 11a+3

Step-by-step explanation:

Simplify the terms.

8a+3+5a-2a

Combine like terms.

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11a+3

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3 years ago

How many are 15 x 15 ?

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Answer:

225

Step-by-step explanation:

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