Use the pair of functions to find f(g(x)) and g(f(x)). Simplify your answers.
f(x)= 1= ² + 4
X-4
To find f(g(x)), we need to substitute g(x) into the function f(x). Given that g(x) = x - 4, we substitute it into f(x) as follows:
\(f(g(x)) = f(x - 4) = (x - 4)^2 + 4\)
To simplify this expression, we can expand the square:
\(f(g(x)) = (x - 4)(x - 4) + 4\\ = x^2 - 8x + 16 + 4\\ = x^2 - 8x + 20\)
Therefore, f(g(x)) simplifies to\(x^2 - 8x + 20.\)
Next, let's find g(f(x)). We substitute f(x) into the function g(x):
\(g(f(x)) = g(1/x^2 + 4) = 1/x^2 + 4 - 4\\ = 1/x^2\)
Hence, g(f(x)) simplifies to 1/x^2.
In summary, f(g(x)) simplifies to\(x^2 - 8x + 20\), and g(f(x)) simplifies to 1/x^2.
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rationalise the denominator
6/3√7
Answer:
Step-by-step explanation:
=6/3\(\sqrt{7}\) *3\(\sqrt{7}\)/3\(\sqrt{7}\)
=6*3\(\sqrt{7}\)/(3\(\sqrt{7}\))^2
=18\(\sqrt{7}\)/9*7
=18\(\sqrt{7}\)/63
=2\(\sqrt{7}\)/7
Which of the following is an example of an irrational number? Question 5 options: A) 3∕4 B) C) D) 74∕99
Answer:
happy to help, but c and d are not included in your question
Translate and solve: 518% of what number is 3885?
Answer:The answer is 750
Step-by-step explanation:3885 of 750 can be written as:
3885/ 750
To find percentage, we need to find an equivalent fraction with denominator 100. Multiply both numerator & denominator by 100
3885/750 × 100/100= (3885 × 100) over 750) × 1 over 100= 518/100
Therefore, the answer is 518%
If you are using a calculator, simply enter 3885÷750×100 which will give you 518 as the answer.
$2.86 $6.35 $1.78 $0.46 + $0.62
Answer:
$12.07
Step-by-step explanation:
Add all the numbers and this is the sum.
Two pieces of equipment were purchased for a total of $2000. If one piece cost $810 more than the other, find the price of the less expensive piece of equipment.
Answer:
595.
Step-by-step explanation:
Take $2000 and subtract $810 from it. You now have the total of the two pieces of equipment without the extra pricing. You should get $1,190. Then divide that number by 2. You will get $595.
1st Piece of Equipment = $595
2nd Piece of Equipment = $1,405
2nd Piece is $810 more expensive and the two pieces combined is $2,000.
You put $939 into an investment at 8% for 6 years. What will the balance be at the end of 6 years?
Answer:
At simple interest it will be 939+939×6×0.08=$1389.72.
Step-by-step explanation:
HELP ME PLS!!!!
a circle has been divided into 36 equal angles what is the measure of each angle?
Answer:
10°
Step-by-step explanation:
360/36 = 10
Determine how long it will take for a principal amount of $1,500 to become double its initial value when deposited into an account paying interest at a rate of 13%, continuously compounded.
A.
5.33 years
B.
6.32 years
C.
11.25 years
D.
14.33 years
c is incorrect
A box contains 54 coins which are either 20-cent coins or 50-cent coins. If the total value of all the coins is $20.70, find the number of 20-cent coins in the box. LOF 1 11.
Number of 20-cent coins in the box are 33.
1. Let's assume the number of 20-cent coins to be x and the number of 50-cent coins to be y.
2. We can set up two equations based on the given information:
- x + y = 54 (since the total number of coins in the box is 54)
- 0.20x + 0.50y = 20.70 (since the total value of all the coins is $20.70)
3. We can multiply the second equation by 100 to get rid of the decimals:
- 20x + 50y = 2070
4. Now, we can use the first equation to express y in terms of x:
- y = 54 - x
5. Substitute the value of y in the second equation:
- 20x + 50(54 - x) = 2070
6. Simplify and solve for x:
- 20x + 2700 - 50x = 2070
- -30x = -630
- x = 21
7. Substituting the value of x back into the first equation:
- 21 + y = 54
- y = 33
8. Therefore, there are 21 20-cent coins and 33 50-cent coins in the box.
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20) Jermaine's goal is to eat 25 grams of protein each day. If Jermair meets his goal, how many grams of protein will he have eaten after 30 days
Answer:750 grams
Step-by-step explanation:
25*30=250 grams after 30 days
Please help me RANDOM ANSWERS WILL BE REPORTED
Answer:
About 51 miles per hour
Step-by-step explanation:
What is the product of x(x+1)?
Select all expressions equivalent to
532
20
202
124
55
51.43
5.43
What is the answer help
Answer: 162°
Step-by-step explanation:
To find the answer to this question, we need to find what 45% of 360 degrees (a circle) is.
First, a percent divided by 100 becomes a decimal.
45% / 100 = 0.45
Next, "of" means multiplication in mathematics.
0.45 * 360 = 162
The central angle will be 162°.
82,964 round to the nearest ten thousand
Answer:
83,000
Step-by-step explanation:
Rounding to the nearest thousand requires you to look at the hundreds place. If it is iver 5, then round your thousandths place up 1. If it is lower than 5, you keep the thousand at the current number.
Y=2x 2 -6x find the value
Answer:
Y=-4x 2
Step-by-step explanation:
What is the average rate of change for this quadratic
function for the interval from x=2 to x = 4?
A. 12
B. -6
C. -12
D. 6
-10-
Click here for long description
SUBMIT
The average rate of change of the function over the interval is -6
Finding the average rate of changeFrom the question, we have the following parameters that can be used in our computation:
The graph
The interval is given as
From x = 2 to x = 4
The function is a quadratic function
This means that it does not have a constant average rate of change
So, we have
f(2) = -3
f(4) = -15
Next, we have
Rate = (-15 + 3)/(4 - 2)
Evaluate
Rate = -6
Hence, the rate is -6
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PLEASE PLEASE HELP
What is the slope of the line that passes through the points (-1, 2) and (-4, 3)?
을
-3
\( \begin{cases} (-1, 2) \\ (-4, 3) \end{cases}\)
Calculate and find the slope by using rise over run formula with two given points.\(m = \frac{dy}{dx} = \frac{y_2-y_1}{x_2-x_1}\)
Substitute the coordinate points in.
\(m = \frac{3 - 2}{ - 4 - ( - 1)} \\ m = \frac{1}{ - 4 + 1} \longrightarrow \frac{1}{ - 3} \\ m = - \frac{1}{3} \)
Hence, the value of m is - 1/3.
Slope-intercept\(y = mx + b \\ \sf{where \: \: m \: \: = \: \: slope}\)
Answer\( \large\boxed{m = - \frac{1}{3} }\)
differentiate of the following w.r.t.
give me this answer i mark u brainlist
Answer:
\(\frac{dy}{dx}=\frac{4}{3}x^{1/3}+e^x +\cos x\)
Step-by-step explanation:
\(\frac{d}{dx} x^{4/3}=\frac{4}{3}x^{1/3} \\ \\ \frac{d}{dx} e^x=e^x \\ \\ \frac{d}{dx} \sin x=\cos x \\ \\ \therefore \frac{dy}{dx}=\frac{4}{3}x^{1/3}+e^x +\cos x\)
Find the value of y so that the distance between the points (4.7 and 0.6) is equal to 5
Answer:
you now if you wont to find the value you can type distance calculator and see the points
Step-by-step explanation:
A 30 foot ladder is placed against a vertical wall so that the base of the ladder is 10 feet from the base of the wall. How far up the wall does the ladder reach?
Answer:
the answer is approximately 28.28
Step-by-step explanation:
you use the pythagorean theorem to find the last length. I could explain it further, but you can take my word for it, its correct. I double checked.
What is the least common denominator of 1/12 and 5/6
Answer:
12
Step-by-step explanation:
if this helped, please mark me as brainliest thank you!
12,
The multiples of 12 are 12,24,36,48,60,72
6,
The multiples of 6 are 6,12,18,24,30,36
After checking the numbers, the least multiple shared by the denominators is 12.
LCD = 12.
Determine a series of transformations that would map Figure X onto Figure Y.
Check the picture below.
You have $1,085. Then you received $2,946 from an uncle. How much money do you have now?
$4,031
1,085 + 2,946 = 4,031
Amy wants to save $500 to buy a TV. She saves $17 each week. The amount, A (in dollars), that she still needs after w weeks is given by the following function.
A (w) = 500 - 17w
(a). How much money does Amy still need after 7 weeks?
(b). If Amy still needs $211, how many weeks has she been saving?
After 7 weeks she would have the total of 119$
A. $381
B. 17 weeks
500-211=289/17=17
Game Stop is selling a video game for 15% off $35.
Answer:
School related questions please
Step-by-step explanation:
And thanks for telling me
A man is in a lighthouse tower that is 65 ft. He spots a ship at sea at an angle of depression of 20°. How far is the ship from the base of the lighthouse to the nearest foot?
Answer:
24 feet
Step-by-step explanation:
distance away is x
tan(20)=x/65
65*tan(20)=x
x=23.65806... feet
round to the nearest foot
x=24
Which function is most likely increasing quadratically
f(x) is the quadratic function that is increasing quadratically, while g(x) is the exponential function.
To determine which function is most likely increasing quadratically, we can compare the differences between consecutive values of f(x) and g(x).
Looking at the values of f(x), we can see that the differences between consecutive values are as follows:
6 - 3 = 3
11 - 6 = 5
18 - 11 = 7
27 - 18 = 9
The differences between consecutive values of f(x) are increasing by 2 each time. This suggests that f(x) is likely increasing quadratically.
On the other hand, looking at the values of g(x), we can see that the differences between consecutive values are as follows:
9 - 3 = 6
27 - 9 = 18
81 - 27 = 54
243 - 81 = 162
The differences between consecutive values of g(x) are increasing significantly with each step. This indicates that g(x) is likely increasing exponentially rather than quadratically.
Therefore, based on the differences between consecutive values, it is most likely that f(x) is the quadratic function that is increasing quadratically, while g(x) is the exponential function.
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The complete question:
The table below shows the values of f(x) and g(x) for different values of x. One of the functions is a quadratic function, and the other is an exponential function. Which function is most likely increasing quadratically?
x f(x) g(x)
1 3 3
2 6 9
3 11 27
4 18 81
5 27 243
Fred is standing at a point looking north. He walks on a bearing 056° for 9.8km before stopping. He then walks an additional 3.5 km on a bearing of 112° before stopping to rest. (a) Find out how far he is away from his start point using sine or cosine rule (b) Determine the area of the enclosed shape (c) Draw neat labeled scale diagram of the same
The area of the enclosed shape is about 14.47 km^2.
We are given that;
056° for 9.8km and 3.5 km on a bearing of 112°
Now,
We can see that the enclosed shape is a triangle with sides 9.8 km, 3.5 km, and z km, and angles 56°, 112°, and y°. We can use the fact that the sum of angles in a triangle is 180° to find y:
y = 180° - 56° - 112°
y = 12°
Now we can use the cosine rule to find z:
z^2 = 9.8^2 + 3.5^2 - 2(9.8)(3.5)cos(12°)
z^2 ≈ 101.87
z ≈ 10.09
Therefore, Fred is about 10.09 km away from his start point.
To find the area of the enclosed triangle, we can use the sine rule to find x, the height of the triangle:
sin(56°) = x/9.8
x = 9.8 sin(56°)
x ≈ 8.27
The area of a triangle is given by half the base times the height, so:
A = (1/2)(3.5)(8.27)
A ≈ 14.47
Therefore, by trigonometric ratios the answer will be 14.47 km^2.
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