3 years ago

What is the Value of X please help!

Mathematics

1 answer:

Brums [2.3K]3 years ago

4 0

Answer:

x = 7cm

Step-by-step explanation:

$\frac{36}{6} = \frac{42}{x}\\\\6 = \frac{42}{x}\\\\x = \frac{42}{6} = 7$

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3X squared plus 2X equals -4 number of solutions

PIT_PIT [208]

Answer:

The given equation has two solutions i.e $\frac{-1+\sqrt{13} }{3}$ , $\frac{-1-\sqrt{13} }{3}$

Step-by-step explanation:

The given expression as :

3 x² + 2 x - 4

For the quadratic equation in the form of a x² + b x + c , the value of x

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

Or, x = $\frac{-2\pm \sqrt{2^{2}-4\times 3\times (-4)}}{2\times 3}$

Or, x = $\frac{-2\pm \sqrt{4 + 48}}{6}$

or, x = $\frac{-2\pm \sqrt{52}}{6}$

∴ x = $\frac{-1\pm \sqrt{13}}{3}$

Or, x = $\frac{-1+\sqrt{13} }{3}$ , $\frac{-1-\sqrt{13} }{3}$

Hence The given equation has two solutions i.e $\frac{-1+\sqrt{13} }{3}$ , $\frac{-1-\sqrt{13} }{3}$ Answer

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Investors buy a studio apartment for $150,00. Of the amount, they would have a down payment of $30,000. Their down payment is wh

devlian [24]

Answer:20% , 35%

Step-by-step explanation:

30000/150000=0.2*100=20%

52500/150000=0.35*100=35%

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3 years ago

Commission earned is 6% at a show store; original cost of shoes: $125

oksian1 [2.3K]

125 x .06 = 7.5

6% of $125 is $7.50

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4 years ago

the difference of two number is 28 if the larger number is three time of the smaller find the number

Elza [17]

Set up an equation:

3x - x = 28

Simplify:

2x = 28

Divide both sides by 2

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Find the value of the greater root of x2 - 13x + 12 = 0.

JulsSmile [24]

The answe has to be d

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4 years ago

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