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3 years ago

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Each table in a classroom is 100cm long and 50cm wide. what is the area of each table? there are 16 tables in the classroom. wha

t is the total area of the tables in the classroom in square meters?

1 answer:

lord [1]3 years ago

3 0

Answer:

A

Step-by-step explanation:

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ASAP NEEEEED HELLLLLLLLLP PLZZZ

nadya68 [22]

T = 5 a
i = 4% aa
j = 1200
c = ...
j = cit/100
c = 100j / it
c = 100*1200 / 4*5
c = 120000 / 20
c = 12000/2
c = 6000

montante

M = c+j
M = 6000+1200
M = 7200

7 0

3 years ago

5. Find the discriminant of 15x2 = 4x – 1 and describe

diamong [38]

Answer:

a) The discriminant of the equation = - 44

b)The nature of the roots will be imaginary.

c) $x = \frac{2 +\sqrt{11} i}{15} or, x = \frac{2 - \sqrt{11} i}{15}$

Step-by-step explanation:

Here, the given expression is $15x^{2} = 4x -1$

or, $15x^{2} - 4x + 1 = 0$

Now the discriminant (D) of a quadratic equation $ax^{2} +b x + c = 0$

D = $b^{2} - 4ac = (-4)^{2} - 4(15) (1) = 16 - (60) = -44$

Hence, the discriminant of the equation = - 44

As D< 0, so the roots will be imaginary.

Now,by quadratic formula : $x = \frac{-b \pm \sqrt{b^{2} - 4ac} }{2a}$

So, here $x = \frac{-(-4) \pm \sqrt{D} }{2a} = \frac{4 \pm \sqrt{(-44 )} }{30}$

So, either $x = \frac{4 + \sqrt{(-44 )} }{30} or, x = \frac{4 - \sqrt{(-44 )} }{30}$

or, $x = \frac{2 +\sqrt{11} i}{15} or, x = \frac{2 - \sqrt{11} i}{15}$

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3 years ago

How do I put y=90-15x in standard form

lisabon 2012 [21]

The standard form: Ax + By = C

y = 90 - 15x <em>add 15x to both sides</em>

<h3>15x + y = 90</h3>

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3 years ago

A loss of 500 in stock market is worse than a gain of $200

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700 stock market is worse than gain

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Tommy has 5 jars of marble. Each Jar is filled 2/3 with marbles. How many full Jars does tommy have? Make a model and shade in t

ivann1987 [24]

5 / ( 2 / 3 ) = 7.5

7 full jars

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2 years ago