Determine the domain of the function. f as a function of x is equal to the square root of x plus three divided by x plus eight times x minus two.
All real numbers except -8, -3, and 2
x ≥ 0
All real numbers
x ≥ -3, x ≠ 2
Answer:
\(\huge \boxed{{x\geq -3, \ x \neq 2}}\)
Step-by-step explanation:
The function is given,
\(\displaystyle f(x)=\frac{\sqrt{x+3 }}{(x+8)(x-2)}\)
The domain of a function are all possible values of x.
There are restrictions for the value of x.
The denominator of the function cannot equal 0, if 0 is the divisor then the fraction would be undefined.
\(x+8\neq 0\)
Subtract 8 from both parts.
\(x\neq -8\)
\(x-2\neq 0\)
Add 2 on both parts.
\(x\neq 2\)
The square root of x + 3 cannot be a negative number, because the square root of a negative number is undefined. x + 3 has to equal to 0 or be greater than 0.
\(x+3\geq 0\)
Subtract 3 from both parts.
\(x\geq -3\)
The domain of the function is \(x\geq -3\), \(x\neq 2\).
The domain of the given function will be x ≥ -3 and x ≠ 2.
What is the domain of a function?The entire range of independent input variables that can exist is referred to as a function's domain or,
The set of all x-values that can be used to make the function "work" and produce actual y-values is referred to as the domain.
As per the data given in the question,
The given expression of function is,
f(x) = \(\sqrt{\frac{x+3}{(x-8)(x-2)} }\)
The fraction would indeed be undefined if the base of the function were equal to zero, which is not allowed.
x + 8 ≠ 0
x ≠ -8
And, x - 2 ≠ 0
x ≠ 2
Since the square root of a negative number is undefined, x+3 cannot have a negative square root. x+3 must be bigger than zero or identical to zero.
So,
x + 3 ≥ 0
x ≥ -3
So, the domain of the function will be x ≥ -3 and x ≠ 2.
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The area of a rectangle is 135 square units. Its length measures 9 units. Find
the length of its diagonal. Round to the nearest tenth of a unit.
Answer:
Length = 9 units
Area = 135 square units
Area = Length x Breadth
135 = 9 x Breadth
Breadth = 15units
\(By \ pythagorean \ theorem\\\\Diagonal ^ 2= Length^2 + Breadth^2\\\\\)
\(= 9^2 + 15^2 \\= 81 + 225 \\=306\)
\(Diagonal = \sqrt{306} = 17.49\)
Diagonal = 17.5 units
Rounding to the nearest tenth of a unit, the length of the diagonal of the rectangle is approximately 17.5 units.
To find the length of the diagonal of a rectangle, we can use the Pythagorean theorem, which states that in a right-angled triangle, the square of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the other two sides.
In this case, the length of the rectangle is given as 9 units, and we need to find the length of the diagonal.
Let's assume the width of the rectangle is 'w'.
We know that the area of a rectangle is given by the formula: length × width = area.
So, 9w = 135
Dividing both sides of the equation by 9, we get: w = 15.
Now, we have the length (9 units) and the width (15 units) of the rectangle.
Using the Pythagorean theorem, we can find the length of the diagonal (d):
d² = 9² + 15²
d² = 81 + 225
d² = 306
Taking the square root of both sides, we get:
d ≈ √306 ≈ 17.5
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Find the volume of the cone that sits on top of the cylinder
Answer:
Vc = (π/3)✓17 ≈ 4.12 ft³
Step-by-step explanation:
h = ✓(4²+1²)
h = ✓17
V = πr²h/3
V = π(1)²✓17/3
V = (π/3)✓17 ≈ 4.12
Can you find the surface area of a rectangular prism 2,3,4
Answer:
48
Step-by-step explanation:
4*2*3 for the 4 flaps
2*4*3 for the 2 tops
(4*2*3) + (2*4*3) = 48
Answer:
52 square inches
Step-by-step explanation:
to find the surface area of a rectangular prism the formula is
S.A.=2(l*w+l*h+w*h)
2(4*3+4*2+3*2)
=52 square inches
here l is length w is width and h is height
what is mathematics??
what are logarithmic functions??
Answer:
In mathematics, the logarithm is the inverse function to exponentiation. That means the logarithm of a given number x is the exponent to which another fixed number, the base b, must be raised, to produce that number x.
Step-by-step explanation:
Which rectangle will have the largest area?
l = 9 cm, w = 7 cm
l = 6 cm, w = 12 cm
l = 6 cm, w = 10 cm
l = 8 cm, w = 8 cm
A basket had 15 mangoes. A monkey came and took
away two-fifths of the mangoes. How many mangoes
were left in the basket
Answer: There are 9 mangoes left in the basket.
Step-by-step explanation:
(2/5) * 15 = 6.
15 - 6 = 9.
What is y 6=2(y+2)
HELP ME PLEASE
"If 54 oranges costs find the cost - Of 3 I
oranges
Answer:
Step-by-step explanation:
Cost of 3 oranges = cost of 54 oranges / 18
Evaluate 79-4*6+12/3
Answer:
59 (the answer should have a positive sign.)Step-by-step explanation:
To solve this problem, you have to solve with order of operations.
Order of operations stands for:
PEMDAS
Parentheses
Exponents
Multiply
Divide
Add
Subtract
Do multiply.
79-4*6+12/3
4*6=24
Rewrite the problem down.
79-24+12/3
Divide.
12/3=4
79-24+4
Add and subtract.
79-24=55
55+4
55+4=59
\(\sf\boxed{59}\)
As a result, the final answer is 59.
the diffrence of 54 and 32 mutlipted by the diffrence of 8 and 5
Answer:
66
Step-by-step explanation:
the difference of 54 and 32 is 54 - 32 = 22
the difference of 8 and 5 is 8 - 5 = 3
then
22 × 3 = 66
HELP ASAP PLS
a survey asked two age groups about the car color that they most preferred. the results are down in the table below. which car color eat most preferred by people ages 16-24 and what is the relative frequency within this age group?
A.) Blue, 71.4%
B.)Red, 60.6%
C.)Blue, 26.8%
D.)33.9%
Answer:
I believe that the answer is B.
Step-by-step explanation:
You can automatically elleminate A bc blue is not larger that red so it is down to C and D. C and D is to small of a percentage bc it would more than likely be one of the smaller numbers on there but red is the largest number in the chart.
So that is why my answer is B.
You select a marble without looking and then put it back. If you do this 12 times, what is the best prediction possible for the number of times you will pick an orange marble?
Let's assume the probability of picking an orange marble is p, then the best prediction for the number of times you will pick an orange marble can be estimated as:
Best prediction = p × 12
If you select a marble without looking and put it back, the probability of picking an orange marble remains the same for each draw. Without any additional information about the marbles and their colors, we cannot make a specific prediction about the number of times you will pick an orange marble.
However, we can make an estimate based on probability. If we assume that the marbles are evenly distributed and there are n marbles in total, with k of them being orange, then the probability of picking an orange marble on each draw is k/n.
Since you are drawing 12 times, we can estimate the number of times you may pick an orange marble based on this probability. The best prediction possible would be the expected value, which is calculated by multiplying the probability of success (picking an orange marble) by the total number of trials (12).
Expected value = Probability of success × Total number of trials
Let's assume the probability of picking an orange marble is p, then the best prediction for the number of times you will pick an orange marble can be estimated as:
Best prediction = p × 12
However, without knowing the actual number of orange marbles and the total number of marbles, we cannot provide an accurate estimate for the best prediction.
To make a more precise prediction, it is necessary to have information about the distribution of marble colors or conduct further experiments to
determine the actual probabilities of selecting an orange marble.
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WILL GIVE BRAINLIEST What is the perimeter of the track, in meters? Use π = 3.14 and round to the nearest hundredth of a meter. plz help me
Answer:
P ≈ 317.08 m
Step-by-step explanation:
Circumference: C = πd
Step 1: Find circumference of both domes
C = π(50)
Since it's a dome, we divide by 2
50π/2 = 25π
Since we have 2 domes, we simply multiply by 2 again
25π(2) = 50π
Step 2: Find perimeter of track
50π + 80(2)
P = 50π + 160
P = 317.08 m
I need the answer:’)
Answer:
its D
Step-by-step explanation:
calculator
Describe the slope of the line
Find the slope
m=??
Answer: 2.333333...
Step-by-step explanation:
If we apply rise over run, we see that it rises 3.5 spaces, and runs 1.5, which means that \(m = \frac{rise}{run} = \frac{3.5}{1.5} = 2.33333...\)
Naji is trying to draw an isosceles triangle. He is
given point A at (-4,-2) and point B at (2,-2).
Plot these two points, then help Naji make the
isosceles triangle ABC by ploting point C. Give
your coordinates for point C. It must be on the
grid provided.
Answ
Step-by-step explanation:wirugf4
This morning, the cafe served 8 coffees in all, 75% of which were regular. How many regular coffees did the cafe serve?
Answer:
6 regular coffees. Thank it if its helpful, thank you!
Step-by-step explanation:
75% of 8 is 6
Reasoning:
75/100*8/1=600/100
600/100=6!
Answer:
Regular coffee served by cafe = 75%* 8
= 75/100*8 = 6 coffees
Step-by-step explanation:
9. The music boosters have their year-end banquet at a hotel that charges $750. The president of the boosters tips the banquet team 20%. What is the total amount spent?
Answer:
900
Step-by-step explanation:
Convert the 20% to a decimal multiply 750 by .20 to get 150 than add 750+150 to get 900
On Monday 2/3 of the team practiced, Tuesday 7/8, Wednesday 1/2, and Thursday 3/4. On which day were the most team members present at practice?
Answer:
Tuesday
Step-by-step explanation:
Arrange the following numbers from smallest to largest: 3.04, 3
10
3.024
Answer:
3, 3.024, 3.04, 10
I'm sorry if I misunderstood.
Good luck mate! :)
Please add Brainliest if you'd like, not that it matters.
Remember to try your best every day!
I really need help!!!!!!!!!!!!!!!!!!
Answer:
eyehehbr bdbbdbd 112
Step-by-step explanation:
add
dixg
hgfg kggg by
jhggg
1. Four family members attended a
family reunion. The table below
shows the distance each person
drove and the amount of time each
person traveled.
Family Reunion Travel:
•Name
Hank
Laura
Nathan
Raquel
•Distance
176 miles
150 miles
112.5 miles
286 miles
• Travel Time
3 hours 12 minutes
2 hours 30 minutes
2 hours 15 minutes
4 hours 24 minutes
If each person drove at a constant rate, who drove the fastest (in miles per hour)?
A. Hank
B. Laura
C. Nathan
D. Raquel
If each person drove at a constant rate, the person who drove the fastest (in miles per hour) is: C. Nathan.
What is speed?In Mathematics and Science, speed is the distance covered by a physical object per unit of time. This ultimately implies that, speed can be measured by using the following unit of measurement;
Miles per hour (mph).Kilometers per hour (kph).Meter per seconds (m/s).How to calculate the speed?In Mathematics and Science, the speed of any a physical object can be calculated by using this formula;
Speed = distance/time
For Hank, we have:
Speed = 176/3.2 = 55 miles per hour.
For Laura, we have:
Speed = 150/2.5 = 60 miles per hour.
For Nathan, we have:
Speed = 112.5/2.25 = 50 miles per hour (Fastest).
For Raquel, we have:
Speed = 286/4.4 = 65 miles per hour.
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Divide of a right angle into two parts such that the number of English minutes in one to the
number of French seconds in the other part as 27 : 2500.
Answer:
π/3 radians, 3600 English minutesπ/6 radians, 333,333 1/3 French secondsStep-by-step explanation:
An English minute is (1/60)(π/180) radian = π/10800 radian.
A French second is (1/100)(1/100)(π/200) radian = π/2000000 radian.
So, the ratio of angle sizes in common units will be ...
27(π/10800) : 2500(π/2000000) = (2/800) : (1/800) = 2 : 1
Since the total of these ratio units is 2+1 = 3, we need to divide the right angle into 3 parts. The English part will be 2 of those; the French part will be 1 of them. A 1/3 part of a right angle is π/6 radians, so the right angle division will be ...
English : French = π/3 radians : π/6 radians
= 3600 English minutes : 333,333 1/3 French seconds
= 27 : 2500
Arrange the steps in order to simplify the expression
Answer:
Step-by-step explanation:
For step explanation:
1. write the problem
2. distinguishing the neg sign
3. distributing 3
4. moving like terms next to each other through commutative property
5. Combining like terms
6. getting rid of parentheses
An architect wants to build a scale model of a building that is in the shape of a rectangular prism. The building has a height of 500 ft., a width of 120 ft., and a length of 600 ft.The scale model is 1% of the size of the building based off its length and width, so the length of the scale model is and the height of the scale model is .
Height: 5ft.
Legnth: 6ft.
Width: 1.2 ft.
1% of 500 is 5ft
1% of 600 is 6ft
1% of 120 is 1.2ft
Please help! I need this answer fast!
Frank left his house at 7 am and drove to the airport at a speed of 50 mph. Lance left his house at 6 am and drove to the same airport at a speed of 55 mph. Frank's house is 150 miles from the airport and Lance's house is 220 miles from the airport.
At what time did Lance arrive at the airport?
Answer:
87
Step-by-step explanation:
Answer: 10:00 AM
This is the answer, and it’s correct. I did this problem and it’s 10:00 AM
The mean numbers of hours of part time work per week for a sample of 521 college students is 27 if the margin error for the population mean with a 95% confidence interval is 1.2 construct a 95% confidence interval for the mean number of hours of part time work per week for all college students
Answer:
fh
Step-by-step explanation:
PLEASE HELP ME
PLEASE BE CORRECT WHEN ANSWERING
9514 1404 393
Answer:
1/3
Step-by-step explanation:
The scale factor is the ratio of image lengths to original lengths.
B'C' = 1 unit
BC = 3 units
The scale factor is B'C'/BC = 1/3.
_____
Additional comment
The center of dilation in this figure is 3 units below D' on the same vertical line. (It is 1 unit off the bottom of the grid shown.)
Lynnetta gets paid weekly for completing household chores. The amount of money she earns for doing dishes, D, is approximately Normally distributed with a mean of $53 and a standard deviation of $3.60. The amount of money she earns for doing laundry, L, is approximately Normally distributed with a mean of $47 and a standard deviation of $4.10. Assume that D and L are independent random variables. What is the probability that Lynnetta will earn more than $110 in a randomly selected week?
Answer:
0.034
Step-by-step explanation:
cuz i missed it