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3 years ago

Solve 6x = 4x^2 using the quadratic formula

Mathematics

1 answer:

Oksi-84 [34.3K]3 years ago

7 0

6's x = 0 and 4's x = 3/2 (put 3 over 2 so it marks as a fraction)

plz mark brainliest

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Evaluate the following expression for y=25 and g=5<br><br>8(y÷g)-4y÷g+9<br><br>

Lorico [155]

Answer:

Step-by-step explanation:

7 0

2 years ago

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Pls help me with this

katovenus [111]

Answer:

5.85

Step-by-step explanation:

100%-> 6.50

100%-10% = 90 %

90%-> 6.50/100 x 90

=5.85

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2 years ago

4) Graph f(x) 2(3)*. Compare the graph to the

Naddik [55]

Answer it is 65

Step-by-step explanation:

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3 years ago

The manager wants to advertise that anybody who isn't served within a certain number of minutes gets a free hamburger. But she d

aksik [14]

Answer:

The number of minutes advertisement should use is found.

x ≅ 12 mins

Step-by-step explanation:

(MISSING PART OF THE QUESTION: AVERAGE WAITING TIME = 2.5 MINUTES)

For such problems, we can use probability density function, in which probability is found out by taking integral of a function across an interval.

Probability Density Function is given by:

$f(t)=\left \{ {{0 ,\-t$

Consider the second function:

$f(t)=\frac{e^{-t/\mu}}{\mu}\\$

Where Average waiting time = μ = 2.5

The function f(t) becomes

$f(t)=0.4e^{-0.4t}$

The manager wants to give free hamburgers to only 1% of her costumers, which means that probability of a costumer getting a free hamburger is 0.01

The probability that a costumer has to wait for more than x minutes is:

$\int\limits^\infty_x {f(t)} \, dt= \int\limits^\infty_x {}0.4e^{-0.4t}dt$

which is equal to 0.01

Solve the equation for x

$\int\limits^{\infty}_x {0.4e^{-0.4t}} \, dt =0.01\\\\\frac{0.4e^{-0.4t}}{-0.4}=0.01\\\\-e^{-0.4t} |^\infty_x =0.01\\\\e^{-0.4x}=0.01$

Take natural log on both sides

$ln (e^{-0.4x})=ln(0.01)\\-0.4x=ln(0.01)\\-0.4x=-4.61\\x= 11.53$

<h3>Results</h3>

The costumer has to wait x = 11.53 mins ≅ 12 mins to get a free hamburger

3 0

2 years ago

What is the value of x then find the messures of Angles M and N

AveGali [126]

Answer:

x=32

Step-by-step explanation:

sum of interior angles of a triangle = 180

add up all angles and equate to 180

(4x-13)+(x+18)+15=180

5x=160

x=160/5=32

x+18 = 32+18 = 50

4x-13 = 4x32-13 = 128-13 = 115

add up all to check whether ans = 180; 15+50+115=180

3 0

3 years ago

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