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3 years ago

A rational expression has been simplified below.

Mathematics

2 answers:

gayaneshka [121]3 years ago

5 0

Answer:

all real numbers except 2

Step-by-step explanation:

Margaret [11]3 years ago

4 0

<span>The first thing to do here is simplify both sides. X=4/9 is simplified, but you can simplify the other side by canceling out the (x-2) in the numerator and denominator.

</span><span>The expression should be (x + 4)(x - 2)/9(x - 2)= (x + 4)/9. After simplification by (x - 2) , the remainder is (x + 4)/9. When x = -4, both sides equal to zero When x = 0 , both sides equal to 4/9
</span>
I hope my answer has come to your help. God bless and have a nice day ahead!

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What is the square root of (x+3)^10

Greeley [361]

It would be (x+3)^5 unless x stands for a number

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4 years ago

Use MATLAB to plot the functions u = 2 log10 (60x + 1) and v = 3 cos(6x) over the interval 0 ≤ x ≤ 2. Properly label the plot an

Rama09 [41]

Answer:

title ('Graph of Speed agaist Distance');

xlabel('Distace in miles');

ylabel('Speed in miles per hour');

legend('u','v');

x = 0: 0.01:2;

u = 2* log10(60*x + 1);

plot (x,u);

hold on

v = 2* cosd (6*x);

plot (x,v)

grid on

Step-by-step explanation:

#Define the title of the plot

title ('Graph of Speed against Distance');

#Define both the x-axis ad y-axis label of the plot

xlabel('Distance in miles');

ylabel('Speed in miles per hour');

#Define the what each plot sigifies

legend('u','v');

#Define the x-axis range of the plot

x = 0: 0.01:2;

#Define the function u and plot it on the graph

u = 2* log10(60*x + 1);

plot (x,u);

#allow another plot to be on the same graph

hold on

#Define the function v and plot it on the graph

v = 2* cosd (6*x);

plot (x,v)

#make the grid visible

grid on

8 0

3 years ago

Suppose that past history shows that 60% of college students prefer brand c cola. a sample of 5 students is to be selected. base

pickupchik [31]

The probability is 8.7%.

To find P(X<2), we find P(X = 1 or X = 0). For a binomial distribution, we use the formula
$_nC_r(p)^r(1-p)^{n-r}$

For this problem, p=0.6 and n=5:
$_5C_1(0.6)^1(1-0.6)^4+_5C_0(0.6)^0(1-0.6)^5
\\
\\_5C_1(0.6)(0.4)^4+_5C_0(0.4)^5
\\
\\ \frac{5!}{1!4!}(0.6)(0.4)^4+\frac{5!}{0!5!}(0.4)^5
\\
\\ 5(0.6)(0.4)^4+(0.4)^5
\\
\\0.0768+0.01024 = 0.08704\approx0.087=8.7%$

4 0

4 years ago

Wilcorp has 50 employees who work 40 hours a week and earn $20/hour. Fifteen employees each worked 4 hours of overtime at 50% ab

marshall27 [118]

50 employees work 40 hours/week at $20/hour.

Their combined regular hours salary is 50 * 40 * $20 = $40,000.

15 employees worked 4 hours at $30/hour.

Their combined overtime salary is 15 * 4 * $30 = $1,800.

The total payroll is the regular hours plus the overtime:

$40,000 + $1,800 = $41,800

The overtime is the following percentage of the total payroll:

$1,800/$41,800 * 100% = 4.3%

Answer: 4.3%

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3 years ago

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Romashka [77]

Answer:

10 m / minute

Step-by-step explanation:

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Displacement = 900

Time = 9 minutes

900 / 9

= 10 m / minute

3 0

3 years ago