Answers
Answer:
3pi
Step-by-step explanation:
all of the other ones are out of range
Related Questions
If f(a) = 3a – a2, which of the following are not true statements? Select all that apply. f(-5) = -40 f(4) = -4 f(-1) = 2 f(0) = 3 f(3) = 0
Answers
The true statements are f(-5) = -40, f(0) = 3 and f(3) = 0
How to determine the valueGiven the function;
f(a) = 3a – a2
For f(-5), we substitute the value of a as -5, we have
f(-5) = 3(-5) - (-5)²
f(-5) = -15 - 25
f(-5) = -40
For f(4), we have
f(4) = 3(4) = 3(16)
f(4) = 12 - 48
f(4) = -36
For f(-1), we have
f(-1) = 3(-1) - (-1)²
f(-1) = -3 - 1
f(-1) = -4
For f(0), we have
f(0) = 3(0) -(0)
f(0) = 0
For f(3), we have
f(3) = 3(3) - 3²
f(3) = 0
Thus, the true statements are f(-5) = -40, f(0) = 3 and f(3) = 0
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What is the domain of f(x)=2?
Answers
Answer:
All real numbers
Step-by-step explanation:
Domain means the valid x values. If you graph this it is a horizontal line extending to negative infinity and positive infinity where y = 2.
∠
ABC = 40° and
x
= 9 cm.
Find the length of AC.
Give your answer rounded to 1 DP.
Answers
The length of AC is 6.228 cm.
Here the angle of the triangle ∡ABC is 40°, AB = BC = 9.
We have to find the length of AC which is opposite to ∡B.
Let AB = BC = x , AC = c
From the cosine formula, we know that
[tex]c^{2}[/tex] = [tex]a^{2}[/tex] + [tex]b^{2}[/tex] - 2ab cos α
Here c is the length of the side opposite to the angle α, and a, b is the side adjacent to the angle α.
So from the cosine formula we have
[tex]c^{2}[/tex] = [tex]x^{2}[/tex] + [tex]x^{2}[/tex] -2[tex]x^{2}[/tex]cos α
[tex]c^{2}[/tex] = 2[tex]x^{2}[/tex] - 2[tex]x^{2}[/tex] cos 40°
= 2[tex]x^{2}[/tex](1- cos 40°)
= 2 ×[tex]9^{2}[/tex] ( 1 - 0.76)
= 2 × 81 × 0.24
c = 2 × 9 × 0.2×√3
=3.6 × 1.73
= 6.228cm
Therefore the length of the side AC is 6.228cm.
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1 Latisha and Maisha are twins. They have a brother who is eleven years younger than
them and an older sister who is four years older. The sum of the ages of all four siblings
is 73. Find Latisha's age.
Sum = 73
Answers
Answer: 20 years old
Step-by-step explanation:
L=Latisha's age. M=Maisha's age.
O=older sister's age. Y=Younger Brother's age
L=M since both Latisha and Maisha are twins.
Y=L-11
O=L+4
L+M+O+Y=73
L+L+L+4+L-11=73
L+L+L+L+4-11=73
4L-7=73
4L=80
L=20 years old
Please help due today
Answers
Answer:
Bars Express is less expensive and will save you one cent on shipping costs for 5 candy bars.
Step-by-step explanation:
Plug in 5 into the x values of both equations and see how much they both cost.
Uber Bars -> 3 + 1.59(5) = 10.95
Bars Express -> 0.99 + 1.99(5) = 10.94
..., -39, ______, ______, -45,....
Find the missing term
Answers
Evaluate |a| - |b|, given a = 5, b = -3, and c = -2.
1. 8
2. 7
3. 3
4. 2
Answers
Molli purchased 9 apples for $3.96. While looking at her receipt, Molli divided $3.96 by 9.
Why might Molli perform this calculation?
Answers
Answer:
To find out how much each apple cost
Step-by-step explanation:
If Molli bought 9 apples for a total of $3.96, she could divide her total by 9 to figure out how much each individual apple cost.
Select all of the terms that are "like."
x 2
2x 2 y
-xy
xy
xy 2
2xy
Answers
Answer:
x2,2x2y,xy2,-xy,xy,2xy
Find the 8th term of the arithmetic sequence 3x+13x+1, -2x+7−2x+7, -7x+13,
pls help me I will give brainlist
Answers
Answer: =38x+16.
a_{\color{red}{8}}=(\color{blue}{3x-5}) + (\color{red}{8}-1)(\color{green}{5x+3})
a
8
=(3x−5)+(8−1)(5x+3)
a_{8}=3x-5+ 7(5x+3)
a
8
=3x−5+7(5x+3)
a_{8}=3x-5+35x+21
a
8
=3x−5+35x+21
Find the (a) mean, (b) median, (c) mode.
Listed below are the highest amounts of net worth (in millions
of dollars) of all celebrities. What do the results tell us about
the population of all celebrities? Based on the nature of the
amounts, what can be inferred about their precision?
240 190 175 155 150 150 130 130 130 130
The mean is $ type your answer...
million. The median is $
type your answer...
million and the mode is $
type your answer...
million.
Answers
Answer: Mean = 158 - Median = 158 - Mode = 130
Answer: (a) mean is $158 (b) median is $150 (c) mode is $130
Step-by-step explanation:
Arrange the series:
130 130 130 130 150 150 155 175 190 240
[tex]\displaystyle\\Mean=\frac{130*4+150+2+155+175+190+240}{10} \\\\Mean=\frac{1580}{10} \\\\Mean=158\\\\Median=\frac{150+150}{2} \\\\Median=\frac{300}{2} \\\\Median=150\\\\Mode=130[/tex]
Joe has a mullet ratio of 1.5 (a) Find 2 possibilities for his hair lengths.
Answers
Mullet ratio of 1.5 is 1.8
Given:
The mullet ratio is 1.5
Rm=[tex]\frac{party}{buisness}[/tex]
Rm = 17/9
Rm=1.8
The ratio to their Mullet and several other higher-level extension questions.
Trimmed short in the front and sides, but left wild and long in the back. Mullet begins the experience with intuition, the lowest rung on the ladder of abstraction, asking students to decide using nothing more than their gut “which one is more Mullet-y” By the end, they’ve named variables and defined operations, entirely abstracting the context.
The pipe cleaner was inserted along the hair, and the students straightened it on their rulers to determine the size of the Party. The Business was often rather honest.
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solve the equation 6x = 12
Answers
Divide both sides by 6
x=2
Answer: x=2
Step-by-step explanation:
[tex]6x=12[/tex]
[tex]\frac{6}{6}x=\frac{12}{6}[/tex]
[tex]x=2[/tex]
following the finite difference process we used in lecture, use a second order difference scheme to approximate x′′(t) and rewrite this initial value problem as a linear system of equations ax
Answers
Use a second order difference scheme while adhering to the finite difference procedure we discussed in lecture, the rewritten initial value is cos(t)+C.
What is a difference equation?The k initial differences of a sequence or a function are involved in a difference equation of order k, just as the k first derivatives of a function are related in a differential equation of order k.
The two aforementioned relationships enable the transformation of a recurrence relation of order k into a difference equation of order k and, in the other direction, a difference equation of order k into a recurrence relation of order k. Every transformation is the inverse of every other transformation, and the sequences that satisfy the recurrence relation are the exact ones that provide the solution to the difference equation.
Calculations:
syms y(t) z(t)
eqns = [diff(y,t)==z, diff(z,t)==-y];
[ySol(t),zSol(t)] = dsolve(eqns)
ySol(t) = C
cos(t)+C
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3 QUESTIONS LEFT!! WILL GIVE BRAINLIEST TO PROPER ANSWER ONLY, NO SPAM
options for second drop down menu: P, K
Answers
Answer: Easy, T = VP/K
Step-by-step explanation:
1. Since you need to multiply P, making it VP = KT
2. Then, you need to divide the K, making it VP/K = T
3. So the first one is VP, the second one is K
7(3 + x) - 4(x + 1)
distributive property
Answers
Answer: 17+3x
Step-by-step explanation:
7(3 + x) - 4(x + 1)=
21+7*x-4x+(-4*1)= ==> Distribution Property
21+7x-4x+(-4)=
21+3x-4=
21-4+3x=17+3x
7(3 + x) - 4(x + 1)
Now we can distribute:
21 + 7x - 4x - 4
Now we can combine like terms:
17 + 3x
Now we flip them around; the coefficient always should come first:
3x + 17
Using the distributive property, the final expression is 3x + 17.
multiple choice question. with explanation
Answers
Answer:
(1)
Step-by-step explanation:
the sum of the 3 angles in a triangle = 180° .
consider the inner triangle where
a + b + 58° = 180° ( subtract 58° from both sides )
a + b = 122°
consider the outer triangle where
c + d + 63° = 180° ( subtract 63° from both sides )
c + d = 117°
Then
a + b + c + d = 122° + 117° = 239°
Find the perimeter of a rectangle whose width is 16 and whose length is 12 square feet
Answers
Answer:
56 square feet
Step-by-step explanation:
a rectangle has 4 sides, and two of each are the same;
12 is the length
16 is the width
12 + 12 + 16 + 16 = 56
final answer is 56 square feet
hope this helped xx
a portion of a map with cites A and B is shown. The map uses a scale of 1 inch to 30 miles a new map has a scale of 2 inches = 15 miles. how far apart are cites A and B on the new map?
Answers
1in=15 then it’s 75. For 2in=25 then it’s 62.5
The label on a car's antifreeze container claims to protect the car between −30°C and 130°C. To covert Celsius temperature to Fahrenheit temperature, the formula is C equals five ninths times the quantity F minus thirty two.. Write a compound inequality to determine the Fahrenheit temperature range at which the antifreeze protects the car.
Answers
Answer:
he. haha. shyw sjIana d auhaabab ssbajiaan s
Please tell me what order these go in
Answers
The missing reasons in the prof are:
1. Given
2. Vertical angles are congruent
3. Substitution
4. Subtraction
5. Addition
6. Division
What is the Vertical Angles Theorem?According to the vertical angles theorem, if two angles are vertical angles, then they would be congruent to each other.
The following are the missing reasons in the given proof;
1. <PAR and <TAS are vertical angles [given]
2. <PAR ≅ <TAS [vertical angles are congruent]
3. 3x + 14 = 50 - x [substitution]
4. 3x = 36 - x [subtraction]
5. 4x = 36 [addition]
6. x = 9 [division]
Therefore, the missing reasons in the prof are:
1. Given
2. Vertical angles are congruent
3. Substitution
4. Subtraction
5. Addition
6. Division
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estimate the number of gallons of gasoline consumed by the total of all automobile drivers in the u.s., per year. suppose that there are about 3 × 108 people in the united states, approximately half of the them have cars, each car drives an average of 12,000 mi per year, and consumes a gallon of gasoline for each 20 mi .
Answers
The total amount of gallons of gasoline expended by all the automobile drivers in the United States is 9 × (10)10 gallons. It is obtained using the basic concepts of word problems based on multiplication and division.
What are word problems?
Word problems are defined as mathematical problems that are completely expressed in the notation of words or language rather than numbers. Word problems can simply be based on addition, subtraction, multiplication, division, percentage, etc.
Calculation of the total amount of gasoline consumed in the US in units of gallon
According to the word problem, the total number of people in the US is 3 × (10)8
Number of people having cars = ½ × 3 × (10)8
= 1.5 × (10)8
Each car drives an average of 12000 miles per hour, so the total distance travelled by one car is 12000 miles
The distance covered by all the cars = 1.5 × (10)8 × 12000
= 1.8 × (10)12 miles
20 miles is covered in 1 gallon of gasoline
1 mile is covered in 1/20 gallon of gasoline
So, 1.8 × (10)12 miles will be covered in 1.8 × (10)12 × (1/20)
= 9 × (10)10 gallons
Hence, the gallons of gasoline required is 9 × (10)10 gallons.
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Pleas help me it would be so nice
Answers
Answer:
1. 0.003
2. 0.5
3. 0.001343
4.0.05003
5. 0.670570
6. 1.01
help me understand this
Answers
Answer:
59,049
Step-by-step explanation:
Since 3^2 is basically 3 times 3 which is 9, then what's 9 times 9, 9, 9, 9, 9 (9^5)?
Answer: 3¹⁰
Step-by-step explanation:
[tex]\displaystyle\\(3^2)^5=\\\\3^{2*5}=\\\\3^{10}[/tex]
seven times the quantity of the difference of a number cubed and eleven
write into algebraic expression
Answers
Answer:
7x(y^3-11)
Step-by-step explanation:
HELP PLS.
A line segment has an endpoint at (4, 5). If the
midpoint of the line segment is (-1,4), what is the
location of the line segment's other endpoint?
Answers
=========================================================
Explanation:
A = (4,5) is one endpoint
B = (-1, 4) is the midpoint
C = (x,y) is the other endpoint
For now, focus on the x coordinates of each point
A and C have x coordinates of 4 and x respectively
Add them up and divide in half. Set this equal to the x coordinate of B
(4+x)/2 = -1
4+x = 2*(-1)
4+x = -2
x = -2-4
x = -6 which is the x coordinate of point C
Repeat this same idea for the y coordinates
(5+y)/2 = 4
5+y = 2*4
5+y = 8
y = 8-5
y = 3 which is the y coordinate of point C
Therefore, point C is located at (-6, 3)
--------------------------
To verify the answer, you can use the distance formula to calculate the following segment lengths: AB and BC
You should find that AB = BC. This is because the midpoint splits segment AC into two smaller equal pieces.
Another way to verify the answer is to use the midpoint formula on points A(4,5) and C(-6,3). The result of using this formula should be B(-1,4) mentioned earlier.
5) {(-4, 3), (5,-9), (11, 4), (9, 6), (5, -3), (8, -9), (1,4)} ) {(6, 0), (-12, -16), (-6, 10), (20,-7)}
does this represent a function or no?
Answers
These set of figures: {(-4, 3), (5,-9), (11, 4), (9, 6), (5, -3), (8, -9), (1,4)} ) {(6, 0), (-12, -16), (-6, 10), (20,-7)} does not represent a function. Instead, it represents a set.
We are supposed to answer whether {(-4, 3), (5,-9), (11, 4), (9, 6), (5, -3), (8, -9), (1,4)} ) {(6, 0), (-12, -16), (-6, 10), (20,-7)} represents a function or not.
The answer is NO. This is not a representation of a function instead it is a representation of set.
Function: In mathematics, a function is an expression, rule, or law that establishes the relationship between an independent variable and a dependent variable (the dependent variable). For example [tex]F(x) = 2x-4[/tex] and at [tex]x=0[/tex] the value of function will be zero.Set: In mathematics, a set is a logically arranged group of items that can be represented in either set-builder or roster form.Typically, sets are denoted by curly brackets; for instance, A = {1, 2, 3, 4} is a set.
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8. Karen earned $81.00 at her job last week. Kimberly earned 33% as much money as Karen. How much money did Kimberly earn?
Answers
Answer:
$26.73
Step-by-step explanation:
Karen: $81
Kimberly: 33% of $81
33% of $81 = 0.33 × $81 = $26.73
FIRST ANSWER GETS BRAINLIEST
Answers
Answer:
The answer is 22 2/3
Step-by-step explanation:
−4 3/3 − 5/3 subtract then simplify