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3 years ago

6/x = 2x+4/5

Mathematics

2 answers:

melamori03 [73]3 years ago

8 0

Answer:

5x² + 2x - 15 = 0

Step-by-step explanation:

Given

$\frac{6}{x}$ = 2x + $\frac{4}{5}$

Multiply through by 5x ( common denominator )

30 = 10x² + 4x ( subtract 30 from both sides )

0 = 10x² + 4x - 30 ( divide through by 2 )

0 = 5x² + 2x - 15 , that is

5x² + 2x - 15 = 0

qwelly [4]3 years ago

4 0

Answer:

x^2+2x-15=0

Hope it helped u if yes mark me BRAINLIEST!

Tysm!

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10+x=19 need your help

Effectus [21]

Answer:

Step-by-step explanation:

10+x=19

move 10 over the =

x =19-10

x=9

6 0

3 years ago

Read 2 more answers

-11.3 is rational or irrational ? explain? 0.083 and 2.1371938 to please if its not much to ask?

zloy xaker [14]

Ignore the - sign for now. 11.3 = 11.3 113
------- = ----------
1 10

Since this is the ratio of two integers, 11.3 is rational. So is 11.3.

83
If you really mean <span>0.083, this is rational: it is ---------
1000

If y ou meant </span><span>0.083333333 ... , that's also rational: 1/12 is equivalent.</span>

3 0

2 years ago

PLZ SHOW THE WORK!!

STALIN [3.7K]

between -4 &4 is 0 it's equal

Step-by-step explanation:

i can't show it but I can tell u da answer

3 0

2 years ago

The equation h(t)= -16t^2+864t models the path of a rocket shot into the air. After how many seconds does the rocket hit the gro

Vika [28.1K]

Answer:

t = 54 seconds

Step-by-step explanation:

The equation that models the path of a rocket into the air is given by :

$h(t)= -16t^2+864t$

It is required to find the time after which the rocket will hit the ground. When it hits the ground, the height of the rocket will becomes zero. It means,

h(t) = 0

i.e.

$-16t^2+864t=0\\\\16t(-t+54)=0\\\\16t=0, -t+54=0\\\\t=0\ and\ t=54\ s$

It means after 54 seconds, the rocket will hit the ground.

8 0

3 years ago

According to the general equation for conditional probability, if P(A n B) = 3/10 and P(B)= 2/5 what is p(alb)

Natali5045456 [20]

Answer:

P(A given B) = 3/4

Step-by-step explanation:

As we know that it is conditional probability, where the probability of an event depends on the event that has certain probability of occurrence.

The formula for conditional probability is:

P(A given B) = P(A ∩B) / P(B)

Where a and B are events. The probability of event B is known and we also know probability of A∩B

So, putting the values in the formula:

$P(A\ given\ B) = \frac{P(A and B)}{P(B)}\\= \frac{\frac{3}{10} }{\frac{2}{5} } \\=\frac{3}{10} *\frac{5}{2}\\=\frac{3}{4}$

So, the probability of A given B is 3/4 ..

3 0

3 years ago