Answer:
Option B. [tex]tan(2\theta)= -\frac{336}{527}[/tex]
Step-by-step explanation:
we know that
[tex]tan(2\theta)= \frac{sin(2\theta)}{cos(2\theta)}[/tex]
[tex]sin(2\theta)=2(sin(\theta))(cos(\theta))[/tex]
[tex]cos(2\theta)=cos^{2}(\theta)-sin^{2}(\theta)[/tex]
[tex]cos^{2}(\theta)+sin^{2}(\theta)=1[/tex]
we have
[tex]sin(\theta)=\frac{24}{25}[/tex]
step 1
Find the value of cosine of angle theta
[tex]cos^{2}(\theta)+sin^{2}(\theta)=1[/tex]
[tex]cos^{2}(\theta)+(\frac{24}{25})^=1[/tex]
[tex]cos^{2}(\theta)=1-\frac{576}{625}[/tex]
[tex]cos^{2}(\theta)=\frac{49}{625}[/tex]
[tex]cos(\theta)=\frac{7}{25}[/tex]
The value of cosine of angle theta is positive, because angle theta lie on the I Quadrant
step 2
Find [tex]sin(2\theta)[/tex]
[tex]sin(2\theta)=2(sin(\theta))(cos(\theta))[/tex]
we have
[tex]sin(\theta)=\frac{24}{25}[/tex]
[tex]cos(\theta)=\frac{7}{25}[/tex]
substitute
[tex]sin(2\theta)=2(\frac{24}{25})(\frac{7}{25})[/tex]
[tex]sin(2\theta)=\frac{336}{625}[/tex]
step 3
Find [tex]cos(2\theta)[/tex]
[tex]cos(2\theta)=cos^{2}(\theta)-sin^{2}(\theta)[/tex]
we have
[tex]sin(\theta)=\frac{24}{25}[/tex]
[tex]cos(\theta)=\frac{7}{25}[/tex]
substitute
[tex]cos(2\theta)=(\frac{7}{25})^{2}-(\frac{24}{25})^{2}[/tex]
[tex]cos(2\theta)=(\frac{49}{625})-(\frac{576}{625})[/tex]
[tex]cos(2\theta)=-\frac{527}{625}[/tex]
step 4
Find the value of [tex]tan(2\theta)[/tex]
[tex]tan(2\theta)= \frac{sin(2\theta)}{cos(2\theta)}[/tex]
we have
[tex]sin(2\theta)=\frac{336}{625}[/tex]
[tex]cos(2\theta)=-\frac{527}{625}[/tex]
substitute
[tex]tan(2\theta)= -\frac{336}{527}[/tex]
By using the Pythagorean identity and the double angle identity for tangent, it is found that the value of tan 2θ when sin θ =24/25 and 0 ≤ θ ≤ π/2 is -527/336.
Explanation:In the field of Mathematics, particularly in trigonometric equations, the problem given is asking for the value of tan 2θ, given that sin θ=24/25 and 0 ≤ θ ≤ π/2.
Firstly, we can find cos θ by using the Pythagorean identity sin²θ + cos²θ = 1. This gives us cos θ = sqrt (1 - sin²θ) = sqrt (1 - (24/25)²) = 7/25.
Then, knowing that tan θ = sin θ/cos θ, we can plug in these values to get tan θ = (24/25) / (7/25) = 24/7. Finally, using the double angle identity for tan (tan 2θ = 2 tan θ / (1 - tan²θ)), we can find that tan 2θ = 2(24/7) / (1 - (24/7)²) = -527/336.
So, the exact value of tan 2θ when sin θ =24/25 and 0 ≤ θ ≤ π/2 is -527/336, which is answer option A.
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Ahmet rents a piano for $35 per month. He earns $25 per hour giving piano lessons to students. He wants to know
how many hours of lessons per month he must give to earn a profit of $440.
Which answer describes the correct solution for the situation?
it will cost a student $165^ 1/5 per lesson
It will take 19 days of lessons
It will take 16^1/5 days of lessons.
It will take 19 hours of lessons.
it will cost a student $19 per lesson
it will take 16^1/5 hours of lessons
Answer:
25h-35=440
440+35=25h
475=25h
475÷25=h
h=19
19 hours
It will take 19 hours of lessons.
An equation is formed of two equal expressions. The answer describes the correct solution for the situation It will take 19 hours of lessons. The correct option is D.
What is an equation?An equation is formed when two equal expressions are equated together with the help of an equal sign '='.
Given that Ahmet rents a piano for $35 per month. He earns $25 per hour giving piano lessons to students. Therefore, the profit earned by Ahmet will be,
Profit = Total Earning - Expenditure
Profit = Total Earning - Cost of renting the piano
Profit = $25x - $35
Where x represents the number of hours
Now, since Ahmet wants to earn a profit of $440, this month. Therefore, we can write,
$440 = $25x - $35
$440 + $35 = $25x
$475 = $25x
x = $475 / $25
x = 19
Thus, Ahmet needs to give 19 hours of lessons in order to earn $440 profit.
Hence, the answer describes the correct solution for the situation is It will take 19 hours of lessons.
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Simplify(x^2/3)^4/5
Answer:
Step-by-step explanation:
Note that (x^a)^b = x^ab.
Thus, (x^2/3)^4/5 = x^(2/3 * 4/5) = x^(8/15)
To simplify the expression (x^2/3)^4/5, multiply the exponents and provide the resulting exponent x^8/15.
Explanation:To simplify the expression (x2/3)4/5, we can use the rule of exponents which states that when raising a power to another power, we multiply the exponents. In this case, the exponent 4/5 applies to both the x and the 2/3. Multiplying the exponents gives us 2/3 * 4/5 = 8/15. Therefore, the simplified expression is x8/15.
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Which expression is equivalent to
For this case we must indicate an expression equivalent to:
[tex]x ^ {- \frac {5} {3}}[/tex]
By definition of power properties we have to:
[tex]a ^ {- 1} = \frac {1} {a ^ 1} = \frac {1} {a}[/tex]
Then, we can rewrite the expression as:
[tex]\frac {1} {x ^ {\frac {5} {3}}}[/tex]
We also have that by definition of properties of powers it is fulfilled that:
[tex]\sqrt [n] {a ^ m} = a ^ {\frac {m} {n}}[/tex]
Then, the expression is like:
[tex]\frac {1} {\sqrt [3] {x ^ 5}}[/tex]
ANswer:
Option B
need help, what is the answer???
Answer:
x = 14 and z = 96
Step-by-step explanation:
The 2 marked angles are vertical and congruent, hence
9x - 42 = 5x + 14 ( subtract 5x from both sides )
4x - 42 = 14 ( add 42 to both sides )
4x = 56 ( divide both sides by 4 )
x = 14
Hence 5x + 14 = (5 × 14) + 14 = 70 + 14 = 84°
z and 5x + 14 form a straight angle and are supplementary, hence
z + 84 = 180 ( subtract 84 from both sides )
z = 96
Translate this sentence into an algebraic equation.
9 more than the product of 4 and x is 20.
Answer:
4x + 9 = 20
Step-by-step explanation:
4x + 9 = 20 is the pertinent equation.
9 more than (this means the same thing as addition or sum, so replace this with an addition sign) the product of (product of means that it's multiplying two numbers together. In this case the two numbers are 4 and x) 4 and x is (this is another word for equal to, so replace with an equal sign) 20
This said the algebraic equation is:
9 + 4x = 20
Hope this helped!
~Just a girl in love with Shawn Mendes
Find the angle between u = (8.- 3) and v = (-3,- 8) Round to the nearest tenth of a degree.
a. 180
c. 0
b. 90
d. 450
Answer:
90°Step-by-step explanation:
First you must calculate the module or the magnitude of both vectors
The module of u is:
[tex]|u|=\sqrt{(8)^2 + (-3)^2} \\\\|u|=\sqrt{64 + 9}\\\\|u|=8.544[/tex]
The module of v is:
[tex]|v|=\sqrt{(-3)^2 + (-8)^2} \\\\|u|=\sqrt{9 + 64}\\\\|u|=8.544[/tex]
Now we calculate the scalar product between both vectors
[tex]u*v = 8*(-3) + (-3)*(-8)\\\\u*v = -24+ 24=0[/tex]
Finally we know that the scalar product of two vectors is equal to:
[tex]u*v = |u||v|*cos(\theta)[/tex]
Where [tex]\theta[/tex] is the angle between the vectors u and v. Now we solve the equation for [tex]\theta[/tex]
[tex]0 = 8.544*8.544*cos(\theta)\\\\0 = cos(\theta)\\\\\theta= arcos(0)\\\\\theta=90\°[/tex]
the answer is 90°
Whenever the scalar product of two vectors is equals to zero it means that the angle between them is 90 °
Answer:
B
Step-by-step explanation:
edge answer
find the value of x. the diagram is not to scale
180° - 113° - 53° = 14°
The answer is b. 14
What would you have to do to change 10 cubic feeet into cubic inches
Answer:
You would multiply by 1728.
So 10 cubic feet = 10 * 1728 = 17,280 cubic inches.
Step-by-step explanation:
There are 12 inches in a foot so there are 12^3 = 1728 cubic inches in a cubic foot.
Final answer:
To convert 10 cubic feet to cubic inches, multiply the volume in cubic feet (10) by the conversion factor of 1,728 to get 17,280 cubic inches.
Explanation:
To change 10 cubic feet into cubic inches, you need to use the conversion factor that 1 cubic foot equals 1,728 cubic inches (since 1 foot equals 12 inches, cubing both sides gives us 123 = 1,728). You then multiply the volume in cubic feet by this conversion factor.
Here is the calculation step by step:
Start with the volume in cubic feet: 10 cubic feet.
Multiply this amount by the conversion factor to get the volume in cubic inches: 10 cubic feet * 1,728 cubic inches/cubic foot = 17,280 cubic inches.
So, 10 cubic feet is equal to 17,280 cubic inches.
for which rational expression is 8 an excluded value ? check all that apply
Answer:
The correct answer options are C. [tex]\frac{x^2+5}{x-8}[/tex] and D. [tex]\frac{x^2-x-56}{x^2-64}[/tex].
Step-by-step explanation:
The values which make the denominator equal to zero are called the excluded values.
Here, we can substitute 8 for x and check if it makes the denominator 0.
[tex]\frac{x-8}{x+8} = \frac{8-8}{8+8} =\frac{0}{16} =0[/tex]
[tex]\frac{x-2}{x^2-4} = \frac{8-2}{8^2-4} =\frac{6}{60} =\frac{1}{10}[/tex]
[tex]\frac{x^2+5}{x-8} = \frac{8^2+5}{8-8} =\frac{69}{0}[/tex]
[tex]\frac{x^2-x-56}{x^2-64} = \frac{8^2-8-56}{8^2-64} = \frac{0}{0} =0[/tex]
[tex]\frac{8x^2-2}{x^2-16} = \frac{8(8)^2-2}{8^2-16} =\frac{510}{48}[/tex]
Answer:
C. x^2+5/x-8
D. x^2-x-56/x^2-64
Step-by-step explanation:
just did the assignment and can confirm the answer above me is correct
Find the difference.
(8ab+a+2) - (3ab+6)
Answer:
5ab+a-4
Step-by-step explanation:
A new video game is expected to sell 100 copies the first hour at a local game store. After that, the sales will follow the function s(x) = 12(x − 1) where x is the number of hours. What is the function that shows total sales, including the first hour?
Answer:
T(x) = 88 + 12x
Step-by-step explanation:
Givens:
1st hour = 100 copies
subsequent hours s(x) = 12( x - 1), where x is number of hours
Let total sales be represented by T(x)
Total sales, T(x)
= sales in first hour + sales in subsequent hours
= 100 + 12 (x - 1)
= 100 + 12x - 12
= 88 + 12x
Answer: Total sales function is [tex]S(x)=88+12x[/tex]
Step-by-step explanation:
Since we have given that
Number of copies the first hour he sell at a local game = 100
Sales function is expressed as
[tex]s(x)=12(x-1)=12x-12[/tex]
so, function that shows total sales including the first hour is given by
[tex]S(x)=100+s(x)\\\\S(x)=100+12x-12\\\\S(x)=88+12x[/tex]
Hence, total sales function is [tex]S(x)=88+12x[/tex]
the perimeter of a triangle is 12cm. which one of the following is not possible sides of a trianglr? a)1 b)5 c)6 d)none of thish
Perimeter of triangle = 3(side)
P = 3(s)
12 = 3s
12/3 = s
4 = s
I think there is a typo in your post.
The question should be: WHICH ONE OF THE FOLLOWING IS A POSSIBLE SIDE OF THE TRIANGLE?
In that case, 4 cm is the answer. However, 4 cm is not listed among the choices. So, choice d is the answer.
If one of the longer sides is 6.3 centimeters, what is the length of the base
Answer: 3.1 cm
Step-by-step explanation:isosollese triangle has 2 equal sides that are longer than legnth of base
perimiter=15.7
equation is 2a+b=15.7
so if the longer side is 6.3, wat is legnth of base
we know that identical sides are bigger so 6.3 is one of the identical sides
2a means the 2 idneical sides
2(6.3)+b=15.7
12.6+b=15.7
subtract 12.6 from btohs ides
b=3.1
answer is base=3.1 cm
Fill out the following chart to find the temperatures for t=12 (noon) and t=24 (midnight).
Answer:
t(12)=40 t(24)=-3.2
Step-by-step explanation:
t(12)=40 because, if you replace 12 with t in the equation, everything but 40 cancels out.
t(24)=-3.2 because, if you plug in 24 for t it will be the same as the first equation where t is 0.
The graph of f(x) = |x| is reflected across the x-axis and translated to the right 6 units. Which statement about the domain and range of each function is correct?
A: Both the domain and range of the transformed function are the same as those of the parent function.
B: Neither the domain nor the range of the transformed function are the same as those
of the parent function.
C: The range but not the domain of the transformed function is the same as that of the parent function.
D: The domain but not the range of the transformed function is the same as that of the parent function.
Answer: (D) The domain but not the range of the transformed function is the same as that of the parent function.
Step-by-step explanation: Because domain is on the X-axis, and the graph would go infinitely, the domain would not change. The range would change from X>0 to X<0.
Answer:
The answer is The domain of the transformed function is the same as the parent function, but the ranges of the functions are different
I took test on edg 2020 and i got right believe me
Step-by-step explanation:
Sarah Jones earns $525 per week selling life insurance for Farmer’s Insurance plus 5% of sales over $5,750. Sarah’s sales this month (four weeks) are $20,000. How much does Sarah earn this month?
Answer:
$2,812.50
Step-by-step explanation:
Let
y ----> amount that Sarah earn this month
x ----> amount of sales over $5,750
we know that
5%=5/100=0.05
The linear equation that represent this situation is
y=4(525)+0.05(x)
Find the value of x
x=20,000-5750=$14,250
substitute
y=4(525)+0.05(14,250)=$2,812.50
Sarah Jones earned $9,725 this month.
Explanation:Sarah Jones earns $525 per week selling life insurance for Farmer’s Insurance plus 5% of sales over $5,750. Sarah’s sales this month (four weeks) are $20,000. To find out how much Sarah earns this month, we need to calculate her base salary and her commission earned from sales over $5,750:
Step 1: Calculate Sarah's base salary for 4 weeks: $525 per week * 4 weeks = $2,100 Step 2: Calculate Sarah's commission on sales over $5,750: ($20,000 - $5,750) * 5% = $7,625 Step 3: Add Sarah's base salary and commission: $2,100 + $7,625 = $9,725Therefore, Sarah earns $9,725 this month.
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what is the slope of the line that contains the points (-2,7) and (2,3)
The formula for slope is
[tex]\frac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex]
In this case...
[tex]y_{2} =3\\y_{1} =7\\x_{2} =2\\x_{1} =-2[/tex]
^^^Plug these numbers into the formula for slope...
[tex]\frac{3-7}{2 - (-2)}[/tex]
[tex]\frac{-4}{4}[/tex] -------------------> Simplifies to -1
^^^This is your slope
Hope this helped!
~Just a girl in love with Shawn Mendes
2^a = 5^b = 20^c, express c in terms of and b
Answer:
c=ab/(2b+a)
Step-by-step explanation:
20^c = 4^c * 5^c
20^c= (2^2)^c * 5^c
20^c= (2 )^(2c) * ( 5 )^c
Raise both sides to power a
20^(ca)=(2^a)^(2c) * (5 )^(ac)
20^(ca)=(20^c)^(2c) * (5 )^(ac)
Raise both sides to power b
20^(cab)=(20)^(2c^2b)*(5^b)^(ac)
20^(cab)=20^(2c^2b) * (20^c)^(ac)
20^(cab)=20^(2c^2b) * 20^(ac^2)
Rewriting using law of exponents on right hand side
20^(cab)=20^(2c^2b+ac^2)
Now bases are same so that means the exponents have to be the same, that is we have:
cab=2c^2b+ac^2
assuming c is not 0, divide by c on both sides
ab=2cb+ac
Factor the right hand side
ab=c(2b+a)
Divide both sides by (2b+a)
c=ab/(2b+a)
C is expressed in terms of b as c = [tex](5^b) / 2.[/tex]
To express c in terms of b in the equation [tex]2^a = 5^b = 20^c[/tex], we need to use the property of exponents that states:
[tex]a^(m * n) = (a^m)^n[/tex]
Let's first express [tex]20^c[/tex] in terms of 2 and 5:
[tex]20^c = (2^2 * 5)^c = 2^(2c) * 5^c[/tex]
Now, we have the equation:
[tex]2^a = 5^b = 2^(2c) * 5^c[/tex]
Since the bases (2) and (5) are equal, the exponents must also be equal:
a = 2c
Now, we can express c in terms of b:
Divide both sides of the equation by 2:
c = a/2
Since we know that a = [tex]5^b[/tex], we can substitute it into the equation:
[tex]c = (5^b) / 2[/tex]
So, c is expressed in terms of b as c = (5^b) / 2.
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G is between E and H, and F is the midpoint of EG. If FH=11 and FG=4 , find EH
Answer: 15
Step-by-step explanation:
Answer:
Step-by-step explanation:
EH =15
What is the graph of f(x)=x^2-2x+3
Answer:
The graph in the attached figure
Step-by-step explanation:
we have
[tex]f(x)=x^{2}-2x+3[/tex]
This is the equation of a vertical parabola open upwards
The vertex is a minimum
The vertex is the point (1,2)
The y-intercept is the point (0,3)
The function does not have x-intercepts
see the attached figure
HELP ASAP I NEED IT NOW
Choose all the answers that apply. Sex-linked disorders _____.
affect males more than females
affect females more than males
can be carried by females, without being expressed
are always expressed in males
are caused by genes carried on the X and Y chromosomes
Answer:
affect males more than females
can be carried by females, without being expressed
are caused by genes carried on the X and Y chromosomes
Step-by-step explanation:
21. The members of a book club are
33, 33, 38, 35, 57, 37, and 40
years old. To the nearest tenth, what
is the mean of this data set with and
without the outlier?
A 36, 38.8
C 39, 36
B 39, 30.9
D 45.5, 30.9
Answer:
C
Step-by-step explanatio
33 + 33 + 38 + 35 +37 + 40 + 57 = 273
273 / 7 = 39
33 + 33 + 38 + 35 +37 + 40 = 216
216 / 6 = 36
The mean (average) of the data set without the outlier is 36 and including the outlier is 39. The outlier here being the value 57 which deviates most from the other values in data set.
Explanation:To find the mean (or average) of a data set, you add all the values together and then divide by the count of the values.
Firstly, for the mean without the outlier, we add 33+33+38+35+37+40 = 216, which we then divide by the 6 values, giving us 36. So, the mean without considering the outlier is 36.
For the mean considering all values including the outlier (57), calculate 33+33+38+35+57+37+40 = 273, then divide by the 7 values, which gives us approximately 39. The answer to the nearest tenth is 39.0. Therefore, the mean of this data set with the outlier is 39.0 and without the outlier is 36.0.
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Can someone PLEASE help me with my assignment? PLEASE?
I've been asking several times and I didn't get any help.
I'm sorry if it sounds like I'm begging, but I just want to finish this and understand how to solve this problem. I've been googling the topic for my assignment and for some reason, I can't find ANY problem that's similar to my homework. It's very frustrating. This has been going on for several hours and I need help.
I would really, REALLY appreciate it.
* I need help with the second picture. I attached the first one for context.
Step-by-step explanation:
Let's start with the y-intercept. (0, 50) is shifted 10 units to the right and becomes (10, 50). Next, we know the slope is 5. We can use this to plot more points, or we can use it to write an equation in point-slope form:
y - 50 = 5 (x - 10)
y - 50 = 5x - 50
y = 5x
So the new y-intercept is (0, 0).
What this means is that Jeremy's savings account will be worth $50 in ten years.
If we compare the new y-intercept to the old one, we see that the 10 unit shift to the right is the same as a 50 unit shift down. Shifting graph B up 50 units will bring us back to the original graph.
If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=
[tex]f^{-1}(7)=\dfrac{7-1}{3}=\dfrac{6}{3}=2[/tex]
The inverse of a function is f⁻¹(7) equals 2.
The correct option is B.
To find the value of f⁻¹(7), we need to substitute 7 into the inverse function f⁻¹(x) = x - 1/3.
f⁻¹(7) = (7 - 1)/3
f⁻¹(7) = 6/3
Since 6 divided by 3 is equal to 2, we have:
f⁻¹(7) = 2
Therefore, f⁻¹(7) equals 2.
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an energy plant is looking into putting in a system to remove harmful pollutants from its emissions going into Earth's atmosphere. The cost of removing the pollutants can be modeled using the function C = 25000P/100 -P what is the vertical asymptote?
Answer:
The vertical asymptote is at P = 100
Step-by-step explanation:
* Lets explain what are the vertical asymptotes
- Vertical asymptotes are vertical lines which correspond to the zeroes
of the denominator of a rational function
- Vertical asymptotes can be found by solving the equation n(x) = 0
where n(x) is the denominator of the function t(x)/n(x)
- Note: this only applies if the numerator t(x) is not equal zero for the
same value of x
# Example: to find the vertical asymptote to [tex]f(x)=\frac{3x-1}{x-5}[/tex]
put the denominator x - 5 = 0, and solve it
the value of x = 5, then the vertical asymptote is at x = 5
* Lets solve the problem
- The equation of the cost is [tex]C=\frac{25000P}{100-P}[/tex]
∵ The denominator of C is (100 - P)
- To find the vertical asymptote equate the denominator by zero
∴ 100 - P = 0 ⇒ add P for both sides
∴ P = 100
∴ There is a vertical asymptote at P = 100
* The vertical asymptote is at P = 100
This question is the on I need help with
let's recall that there are 16oz in 1 lbs, so then 12lbs is 12*16 = 192oz, plus 5, that makes it 197oz, so then 12lb 5oz is really 197oz.
likewise, 7lb is 7*16 = 112oz, plus 10 that makes it 122oz.
197 - 122 = 75 oz
and 75 oz is just 16+16+16+16+11, 4lbs and 11 oz.
The label on the car's antifreeze container claims to protect the car between −40°C and 140°C. To covert Celsius temperature to Fahrenheit temperature, the formula is C=5/9(F-32). Write a compound inequality to determine the Fahrenheit temperature range at which the antifreeze protects the car.
The Fahrenheit temperature range at which the antifreeze protects the car, converted from Celsius, is -40°F ≤ F ≤ 284°F.
Explanation:To convert the Celsius range to a Fahrenheit range, you can use the conversion formula, F = (9/5)*C + 32. Using this formula, for -40°C the Fahrenheit equivalent would be F = (9/5)*(-40) + 32 which equals -40°F, and for 140°C the Fahrenheit equivalent would be F = (9/5)*(140) + 32 = 284°F. Therefore, the compound inequality representing the Fahrenheit temperature range at which the antifreeze protects the car is -40°F ≤ F ≤ 284°F.
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What are the excluded values? m+5/mn+3m
values that are excluded from the domain of a rational expression are values that make the denominator 0, since if that's so, the rational will be undefined. That happens when the denominator is zero out, let's do so
[tex]\bf mn+3m=0\implies m(n+3)=0\implies \begin{cases} m=0\\ n=-3 \end{cases}[/tex]
so, if ever m = 0, the denominator will become 0 and the rational becomes undefined, and whenever n = -3, the same will happen to the rational, thus those values are excluded.
Final answer:
The excluded values for the expression (m + 5) / (mn + 3m) are m = 0 and n = -3, as these would make the denominator equal to zero, which is undefined.
Explanation:
The question appears to relate to the concept of excluded values in an algebraic expression, specifically one that involves division by a variable term. The excluded values are the values that the variables cannot take on because they would make the denominator equal to zero, which is undefined in mathematics. However, the given information seems to be related to physics, particularly quantum mechanics, which involves quantum numbers and the Pauli exclusion principle. It is important to have the correct expression to identify the excluded values properly. Assuming the expression is (m + 5) / (mn + 3m), we need to determine the values of m and n that would make the denominator zero.
To find the excluded values for the variable m and n, we need to set the denominator equal to zero and solve for the variables:
mn + 3m = 0
m(n + 3) = 0
From this, we can see that m must not be zero, and when m is not zero, n must not be -3. Therefore, the excluded values are m = 0 and n = -3.
Evaluate 7+ (-4x^2) for x = 0
If x is zero then you must replace x with zero and use the rules of PEMDAS (Parentheses, Exponent, Multiplication, Division, Addition, Subtraction) to solve
7 + (-4(0)^2)
7 + (-4(0))
7 + 0
7
If x is 0 then the expression equals 7
Hope this helped
~Just a girl in love with Shawn Mendes
Answer:
[tex]\boxed{7}[/tex]
X=0 is 7.
7 is the correct answer.
The answer should have a positive sign.
Step-by-step explanation:
Order of operations
Parenthesis
Exponent
Multiply
Divide
Add
Subtract
from left to right.
Distributive property: a(b+c)=ab+ac
[tex]7+(-4x^2)[/tex]
[tex]7+-4x^2[/tex]
[tex]7-4*0^2[/tex]
Do exponent.
[tex]0^2=0*0=0[/tex]
[tex]7-0=7[/tex]
7 is the correct answer.
Hope this helps you!
Thanks!
Have a nice day! :)
-Charlie
A line passes through (–7, –5) and (–5, 4).Write an equation for the line in point-slope form.
Rewrite the equation in standard form using integers.
Answer:
[tex]\large\boxed{y-4=\dfrac{9}{2}(x+5)}\\\boxed{9x-2y=-53}[/tex]
Step-by-step explanation:
The point-slope form of an equation of a line:
[tex]y-y_1=m(x-x_1)[/tex]
m - slope
The formula of a slope:
[tex]m=\dfrac{y_2-y_1}{x_2-x_1}[/tex]
We have the points (-7, -5) and (-5, 4).
Calculate the slope:
[tex]m=\dfrac{4-(-5)}{-5-(-7)}=\dfrac{9}{2}[/tex]
Put it and coordinates of the point (-5, 4) to the equation:
[tex]y-4=\dfrac{9}{2}(x-(-5))[/tex]
[tex]y-4=\dfrac{9}{2}(x+5)[/tex] → the point-slope form
Convert to the standard form Ax + By = C :
[tex]y-4=\dfrac{9}{2}(x+5)[/tex] multiply both sides by 2
[tex]2y-8=9(x+5)[/tex] use the distributive property
[tex]2y-8=9x+45[/tex] add 8 to both sides
[tex]2y=9x+53[/tex] subtract 9x from both sides
[tex]-9x+2y=53[/tex] change the signs
[tex]9x-2y=-53[/tex] → the standard form