3 years ago

Find the value of x. 6 14 3x-12 21 x = [?]

Mathematics

1 answer:

son4ous [18]3 years ago

4 0

...............................7

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0.02x = 40 what is X step by step explanation

Korolek [52]

Answer:

2000

Step-by-step explanation:

In the equation, there is 0.02 attached to the x. This means multiplication. TO get rid of the 0.02, you need to do the opposite of multiplication. That is division.

Divide both sides by 0.02.

$\frac{0.02x}{0.02} =\frac{40}{0.02}$

$x=2000$

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Which description does NOT guarantee that a quadrilateral is a square?

shutvik [7]

A. Is your answer because it’s doesn’t go that in-depth in the answer.
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4 years ago

A book is marked down by 28 percent from an original price of $19.50. What is the new price?

S_A_V [24]

Answer:

$5.46

Step-by-step explanation:

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How to convert 5/16 into a decimal

REY [17]

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Solve the quadratic equation. Show all of your steps. x 2 + 3 x − 5 = 0

AlladinOne [14]

For this case we have the following quadratic equation:

$x ^ 2 + 3x-5 = 0$

Where:

$a = 1\\b = 3\\c = -5$

We look for the solution using the following formula:

$x = \frac {-b \pm \sqrt {b ^ 2-4 (a) (c)}} {2a}$

Substituting the values:

$x = \frac {-3 \pm \sqrt {3 ^ 2-4 (1) (- 5)}} {2 (1)}\\x = \frac {-3 \pm \sqrt {9 + 20}} {2}\\x = \frac {-3 \pm \sqrt {29}} {2}$

Thus, we have two roots:

$x_ {1} = \frac {-3+ \sqrt {29}} {2}\\x_ {2} = \frac {-3- \sqrt {29}} {2}$

Answer:

$x_ {1} = \frac {-3+ \sqrt {29}} {2}\\x_ {2} = \frac {-3- \sqrt {29}} {2}$

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3 years ago