Step-by-step explanation:
f(x)=3x−2 so when the variable x is replace with an actual value ( − 1 ) we get f(−1)=3(−1)−2
=−3−2
=−5
for the functions f(x) = 4x^4+4x^3-8x^2-13x-5 and g(x) = x+1, find (f/g)(x) and (f/g)(2)
Answer:
(f/g)(x) = 4x³ - 8x - 5(f/g)(2) = 11Step-by-step explanation:
f(x) = 4x⁴ + 4x³ - 8x² - 13x - 5
g(x) = x + 1
To find (f/g)(2) first find (f/g)(x)
To find (f/g)(x) factorize f(x) first
That's
f(x) = 4x⁴ + 4x³ - 8x² - 13x - 5
f(x) = ( x + 1)( 4x³ - 8x - 5)
So we have
\( (f/g)(x) = \frac{( x + 1)( 4x³ - 8x - 5)}{x + 1} \)
Simplify
We have
(f/g)(x) = 4x³ - 8x - 5To find (f/g)(2) substitute 2 into (f/g)(x)
That's
(f/g)(2) = 4(2)³ - 8(2) - 5
= 4(8) - 16 - 5
= 32 - 16 - 5
= 11
(f/g)(2) = 11Hope this helps you
14) Peter signed up for Netflix and it is charging him $10.50 per month. He only used it for 5 months before canceling because they ended his favorite shows.
14a) What expression represents the total change in the amount of money he has to pay?
10.50 x 5 would be the expression.
The answer is $52.5
Answer:
10.50 x 5 would be the expression.
The answer is $-52.5
Step-by-step explanation:
A quarterback completed 16% of his passes in a season. He completed 80 passes. How many passes did the quarterback throw?
Answer:
500
Step-by-step explanation:
100*80 is 8000, then divide it by 16
Find the circumference of the circle. Round to the nearest tenth.
A. 148.4 m
B. 169.6 m
C. 84.8 m
D. 54.0 m
Answer:
C. 84.8 m
Step-by-step explanation:
Circumference of circle = D x 3.14
D = 27 m
Let's solve
27 x 3.14 = 84.78 m
So, the circumference of the circle is C. 84.8 m
Answer:
Option C) 84.8 is the correct answer.
Step-by-step explanation:
Here we have given that the diameter of circle is 27 m and we have to find the circumference of circle. The formula to find circumference of circle is :
\(\dashrightarrow\sf{C = \pi d}\)
Where :
C = circumference π = 3.14 d = diameterThus, finding the circumference of circle by substituting the given values in the formula :
\(\dashrightarrow\sf{C = \pi d}\)
\(\dashrightarrow\sf{C = \pi \times d}\)
\(\dashrightarrow\sf{C = 3.14 \times 27}\)
\(\dashrightarrow\sf{C = 84.78 \: m}\)
\(\dashrightarrow\sf{C \approx 84.8\: m}\)
Hence, the circumference of circle is 84.8 m.
—————————————————A lot of points. PLEASE HELP! I will mark brainliest. Whoever gets it right first.
Given f(x) = X-2 and g(x)= 1/x-2 which of the following values is not in the domain of (fog)(x)?
0
1/2
2
4
Answer:
The answer is 2
Step-by-step explanation:
Edge 2021
please help!! quick hahah :)))) thanks
Answer:
\(-5\sqrt{11}+30\sqrt{6}\)
Step-by-step explanation:
He multiplied by 4 instead of 2.
Attachment is the correct way to do it.
Final answer should be:
\(-5\sqrt{11}+30\sqrt{6}\)
three sides of triangle is x cm y cm z cm its perimeter and semi perimeter
Answer:
Step-by-step explanation:
Perimeter:
\(P=(x+y+z) \ cm\)
Semi-perimeter:
\(SP=\frac{1}{2} (x+y+z) \ cm\)
Based on article 39, infer how some people had been abused by King John´s rule
Answer:King John wanted to wage a war with France to win back his ancestors land, and taxed the barons and people heavily.
Step-by-step explanation:
After a 90% reduction, you purchase a new soft drink machine on sale for $66. What was the original price of the soft drink machine?
The original price was
GEZER
Answer:
$660.
Step-by-step explanation:
So when we apply a discount to a product we multiply the price of the product (let's all is x) for the percentage of the discount (let's apply 90% as the probnlem says) so then we have the following operation:
x ⋅ (1-0.9) = y
Variable y is the price at which you bought the product, it's $66, on this case. Therefore, this is the expression we have:
x ⋅ (1-0.9) = $66
Now, to get the original value of the product (x), we solve the equation for x:
x ⋅ (1-0.9) = $66
x= $66 / (1-0.9)
x= $66 / (0.1)
x= $660
• Why did we multiply by 1-0.9?
This is because we were looking for the 10% of the original price, since it's a 90% discount. A simple way to solve the problem would've been to just divide the price by 0.1 (10%), because that's what remains after you discount 90% of the price.
-------------------------------------------------------------------------------------------
A different example would be the following:
What was the original price of a product bought for $48 if it has a 60% discount?
x is original price.
Since a 60% discount was applied, 40% of the price remains at full price. Therefore, we multiply the original price (x) by 40%:
x ⋅ 40%= $48
x= $48 / 40%
x= $48 / 0.4
x= 120
$120 was the original price.
need help with this ASAP
!!!!!!!!!!!!!!!!!!!!!!!!
The fence in dead center is about 399 feet from the third base.
What is the Pythagorean Theorem?The Pythagorean Theorem states that in the case of a right triangle, the square of the length of the hypotenuse, which is the longest side, is equals to the sum of the squares of the lengths of the other two sides.
Hence the equation for the theorem is given as follows:
c² = a² + b².
In which:
c > a and c > b is the length of the hypotenuse.a and b are the lengths of the other two sides (the legs) of the right-angled triangle.For the triangle in this problem, we have that:
The sides are d ft and 90 ft.The hypotenuse is of 409 ft.Hence the distance is obtained as follows:
d² + 90² = 409²
\(d = \sqrt{409^2 - 90^2}\)
d = 399 ft.
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Please help, I will mark you brainiest!
Answer:
20
Step-by-step explanation:
The line measures a total of 180°
So make an equation where all of the angles added together = 180
100 + 3x + x = 180
Then solve for x.
First, combine like terms.
100 + 4x = 180
Subtract 100 from both sides
4x = 80
Divide both sides by 4 to isolate x
x = 20
Solve for n.
4n + 7 = 19
n =
40% as fraction and decimal
Answer:
40% as a decimal is 0.4
40% as a fraction is 2/5
Step-by-step explanation:
Let's go over each of these step by step.
First, let's see 40% as a fraction.
Since 40% is out of 100%, we can rewrite that as 40/100.
If you want to simplify it, let's do the following.
40/100
Divide both sides by 20, and you'll end up with:
2/5.
Now, let's do 40% as a decimal.
This is pretty simple.
40% is 40/100 as said before, and to find it as a decimal,
let's divide 40 and 100.
40 divided by 20 = 0.4
Therefore, we can conclude the following:
40% as a fraction is 40/100, or 2/5.
40% as a decimal is 0.4
Hope this helped! :)
What two whole number powers of 2 does 2 5/3 come between?
The two whole number powers of 2 does 2 5/3 come between 3 and 4.
What is whole number?The number starting from 0 and running to the infinity are called whole numbers. Such as, 0,1,2,3,4,5...........
Place given number between two consecutive integers: 3 < 2 5/3 < 4
Thus, 3 <2^ (5/3) < 4.
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●
Jamie went out to her grandfather's farm.
Her grandfather has pigs and chickens on his farm.
She noticed that there were a total of 26 heads and
68 feet among them. How many chickens and how
many pigs did her grandfather have?
Answer:
8 pigs
Step-by-step explanation:
Since every animal has only 1 head, a total of 26 heads suggests that there are 26 animals in total.
Suppose all animals are chickens.
Total no. of feet = 26 chickens × 2 feet
= 52 feet
Difference in total no. of feet = 68 feet - 52 feet
= 16 feet
Difference in no. of feet each animal has
= 4 feet (a pig) - 2 feet (a chicken)
= 2 feet
∴ No. of pigs = 16 feet ÷ 2 feet
= 8 pigs
Fatoumata observes marble travel along a horizontal path at a constant rate. The marble travels 1/12 of the length of the path in 4 2/3 seconds. At that rate, how many seconds does it take the object to travel the full length?
Use the number line below to determine which of the following answer choices had statements that are all true
The choice that had statements that are all true is (a) Point B = -2 1/2, Point D = 1 3/4 and 1 3/4 > -2 1/2
How to determine the choices that had statements that are all trueThe complete question is added as an attachment
From the question, we have the following parameters that can be used in our computation:
The number line
On the number line, we have the following
A = -4
B = -2 1/2
C = 1
D = 1 3/4
When the above values are compared with the list of options, we have
Option (A) = true
This is so because in (a)
Point B = -2 1/2, Point D = 1 3/4 and 1 3/4 > -2 1/2
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36+54 as a product please help i do not have any idead of hat this is
Answer:
90
Step-by-step explanation:
What constant acceleration is required to increase the speed of a car from 30 miyh to 50 miyh in 5 seconds?
Answer:
The acceleration is 1.8 m/s^2.
Step-by-step explanation:
initial velocity, u = 30 mph = 13.4 m/s
Final velocity, v = 50 mph = 22.4 m/s
time, t = 5 s
Let the acceleration is a.
Use first equation of motion
v = u + at
22.4 = 13.4 + 5 a
a = 1.8 m/s^2
—7times(—8) help plz
Answer:
\(56\)
Step-by-step explanation:
\(-7*(-8)\)
The only one thing we have to do on this question is simplify.
\((-7)(-8)\)
And this equals
\(56\)
Now you got your answer!
Hope this helps!
The solution to the expression -7 times (-8) is 56
How to evaluate the expressionFrom the question, we have the following parameters that can be used in our computation:
-7 times (-8)
Express using product expression
So, we have
-7 times (-8) = -7 * -8
Evaluate all the products in the expression
so, we have the following representation
-7 times (-8) = 56/1
Evaluate all the quotients in the expression
so, we have the following representation
-7 times (-8) = 56
Lastly, we have
-7 times (-8) = 56
Hence, the solution is 56
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HELPPP!!!!!
A sample of an unknown liquid has a volume of 24.0 mL and a mass of 6 g. What is its density? Show your work or explain how you determined this value. (4 points)
Answer:
0.25 g/mL
Step-by-step explanation:
d=m/v
6 g / 24 mL
0.25 g/mL
both (g) and mL were only used once so the answer includes both of them
pls help marking as brainlist
Answer:
138ft^2
Step-by-step explanation:
9x2=18
10x12=120
18+120=138ft^2
4. Given quad JONE is a trapezoid.
0
N
'
s
E
m
a. ZONJ
b. If OJ NE, then OE
C. If OJ NE, then ZNEJ
Answer:
A. ONE
B. NJ
C. OJE
Step-by-step explanation:
The coordinates of the three vertices of the triangle are A (x1, y1), B (x2, y2), C (x3, y3).
Point D divides AB into internal division ratio I:k, E point divides DC internal division ratio m : k+1, find the coordinates of point E.
Really don't know how to solve this, hope someone can help, thank you very much.
Answer:
Step-by-step explanation:
Using the section formula, if a point (x,y) divides the line joining the points (x
1
,y
1
) and (x
2
,y
2
) in the ratio m:n, then
(x,y)=(
m+n
mx
2
+nx
1
,
m+n
my
2
+ny
1
)
The vertices of the triangle are given to be (x
1
,y
1
),(x
2
,y
2
) and (x
3
,y
3
). Let these vertices be A,B and C respectively.
Then the coordinates of the point P that divides AB in l:k will be
(
l+k
lx
2
+kx
1
,
l+k
ly
2
+ky
1
)
The coordinates of point which divides PC in m:k+l will be
⎩
⎪
⎪
⎪
⎨
⎪
⎪
⎪
⎧
m+k+l
mx
3
+(k+l)
(l+k)
lx
2
+kx
1
,
m+k+l
my
3
+(k+l)
(l+k)
ly
2
+ky
1
⎭
⎪
⎪
⎪
⎬
⎪
⎪
⎪
⎫
⇒(
m+k+l
kx
1
+lx
2
+mx
3
,
m+k+l
ky
1
+ly
2
+my
3
)
2
3250 m + 1,662 km =
Answer:
1,665.25 km
Step-by-step explanation:
The graph shows the speed of a car while it is
slowing down to a stop.
a) Using an appropriate triangle with two of its
vertices on the curve, estimate the distance
travelled by the car during this time.
b) Is your answer an underestimate or an
overestimate?
A gardener wants to determine which of two brands of fertilizer is best for the plants in a garden. Before using one of the fertilizers on the entire garden, the gardener decides to conduct an experiment using 28 individual plants. Which of the two plans for randomly assigning the treatments should the gardener use? Explain.
Plan A: Choose the 14 unhealthiest-looking plants. Apply Brand X fertilizer to all 14 of those plants. Apply Brand Y fertilizer to the remaining 14 plants.
Plan B: Choose 14 of the 28 plants at random. Apply Brand X fertilizer to those 14 plants and Brand Y fertilizer to the remaining 14 plants.
Plan A, because the unhealthy plants need the fertilizer the most and should be treated first
Plan B, because the sample of plants is randomly chosen
Plans A and B are equivalent because they both follow experimental design
Plans A and B are both poorly designed because there are not enough plants to test
The plans cannot be evaluated from the information given
Plan B: Choose 14 of the 28 plants at random. Apply Brand X fertilizer to those 14 plants and Brand Y fertilizer to the remaining 14 plants.
What is a sample and its types?A sample is only a small portion of the population.
Let's imagine you were interested in determining the average income for all Americans in your population.
Instead of knocking on every door in America because of time and money constraints, you decide to ask 1,000 random people. Your sample consists of these a thousand persons.
Given, A gardener wants to determine which of two brands of fertilizer is best for the plants.
And the gardener decides to conduct an experiment using 28 individual plants.
Plan A will be a biased sampling and the experiment would not yield
desired results.
Therefore, The gardener should choose 14 of the 28 plants at random. Apply Brand X fertilizer to those 14 plants and Brand Y fertilizer to the remaining 14 plants.
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In 1995, wolves were introduced into Yellowstone Park.
The function `w\left(x\right)=14\cdot1.08^{x}` models the number of wolves, `w`, in the years since 1995, `x`.
By what percent does the number of wolves change each year?
In this manner, the number of wolves changes by around 8 percentage 8% each year based on the given work.
Percent calculation.
To determine the percentage change within the number of wolves each year, we ought to look at the development rate of the work w(x) = 14 * 1.08^x.
The development rate in this case is given by the example of 1.08, which speaks to the figure by which the number of wolves increments each year. In this work, the coefficient 1.08 speaks to a development rate of 8% per year.
To calculate the percentage change, we subtract 1 from the growth rate and increase by 100 to change over it to a rate:
Percentage change = (1.08 - 1) * 100 = 0.08 * 100 = 8%.
In this manner, the number of wolves changes by around 8 percentage 8% each year based on the given work.
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What part of an hour passed from 4:30 P.M. to 4:45 P.M.?
Answer:
15 minutes it what we call it pretty sure its 10
Step-by-step explanation:
Answer:
15min or a quarter of an hour.
Step-by-step explanation: