Answers
Answer: f (-2) 5
Your welcome
A function is a relation between two variables where one variable is the set of inputs that gives the other variables as output.
The value of the function at x = -2 is 5.
The domain of the function = 5.
The range of the function = -2.
What is a function?A function is a relation between a set of inputs called domains and it has one output called the range.
Example:
f(x) = x + 2
At x = 2,
f(2) = 2 + 2 = 4
Domain = 2
Range = 4
We have,
f(x) = x² + 4x + 9
We need to find the value of the function at x = -2.
Substitute x = -2 in f(x).
f (-2) = (-2)² + 4x(-2) + 9
f (-2) = 4 - 8 + 9
f (-2) = 5
Thus the value of the function at x = -2 is 5.
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Related Questions
Simplify: 45÷3+2×8-12+42
Show working
Answers
15+16-12+42
31-12+42
19+42
61
45divided by 3=15
15+2multiplied by 8 -12+42
First multiple 2 and 8=16
15+16-12+42
15+16=31
31-12+42
31-12=19
19+42=61
Answer is61
Please help legit things only or you get banned thanks!!!!!!!!!!!!!
Answers
Answer:
a
Step-by-step explanation:
this property states a line or shape is always equal to itself
Which set of data has the same mode and median?
A. 3, 4, 6, 7, 8
B. 3, 3, 4, 5, 5
C. 6, 7, 7, 8, 9
D. 2, 2, 3, 4, 6
Answers
Answer:
C
Step-by-step explanation:
the middle number was 7 and so was the most common number
Which equation represents a line parallel to the line shown on the graph?
A.y = 4 x minus 1
B.y = negative 4 x + three
C.y = one-fourth x + 5
D.y = negative one-fourth x minus 1
Answers
Answer:
c
Step-by-step explanation:
i took the test
Solve the equation for a, when b=4 and c=5
[tex]17+2b-4c=4(a-7)-3[/tex]
Answers
Which linear function has the same y-intercept as the one that is represented by the graph? On a coordinate plane, a line goes through points (negative 4, 0) and (0, 3). y = 2 x minus 4 y = 2 x minus 3 y = 2 x + 3
Please help
lots of points and brainliest to best answer
Answers
Answer:
y = 2 x + 3Step-by-step explanation:
Given Line passing through points (-4, 0) and (0, 3)To find A line with same y-interceptSolutionFrom the points we can see the y-intercept of the line is 3 as it passes through point (0, 3)
Answer options
y = 2 x - 4y-intercept is -4 ≠ 3, incorrecty = 2 x - 3 y- intercept is -3 ≠ 3, incorrect y = 2 x + 3 y- intercept is 3 = 3, correctAnswer:
c
Step-by-step explanation:
What does x equal to?
Answers
Answer:
Step-by-step explanation:
La X: En matemáticas la x hace referencia a una incógnita o variable. Variable quiere decir que puede tomar un valor específico dentro de conjunto. Por ejemplo, si tenemos "X+1=3" con X que pertenece al conjunto de los números enteros, la X toma el valor exacto de 2 del conjunto de los enteros.
William has finished 40 of his 50 problems for math homework. What percent of his homework is finished?
Answers
solve the equation
-61 = d + (-18)
give an explanation
Answers
Answer:
The answer is -43
Step-by-step explanation:
It is -61=d-18 (the negative and the positive create a negative)
you add 18 on both sides and you get
-43=d
Solve - (7a - 6) = -7a - 2
Answers
Answer:
Hi there
Your answer is
NO SOLUTION!
Step-by-step explanation:
-(7a-6)=-7a-2
-7a+6 = -7a -2
+7a
6=-2
-7a+6=-7a-2
statement is then 6=-2
so it’s false meaning there is no solution
Please help please help
Answers
can anyone help i don’t know how to do it and it’s GEMDAS not PEMDAS?
Answers
Answer:
GEMDAS rate. (Abbreviation) A mnemonic used to the order of operations in math problems; Grouping (such as parentheses), Exponents, Multiplication, Division, Addition, Subtraction.
Step-by-step explanation:
its pemdas just with a different name!!
do you still need help?
Which property was used to write the equation in step 2? Step 1: 5 (x minus 7) = 55. Step 2: 5 x minus 35 = 55. Step 3: 5 x = 90. Step 4: x = 18. distributive property addition property of equality subtraction property of equality division property of equality
Answers
Answer:
distributive property
Step-by-step explanation:
i took the quiz
Answer: It's A
Step-by-step explanation:
What is the reciprocal of 4/9
Answers
Answer:
9/4
Step-by-step explanation:
Take the fraction and flip it
4/9
The reciprocal is 9/4
Answer:
9/4
Step-by-step explanation:
A reciprocal is just the inverse of the number. Just flip it over.
4/9 flipped over is 9/4.
Hope this helped:)
*10 points & it’s due soon*
What is the distance between the points (82) and (7, 6) ?
A 4.1
D 17
23
D) 289
Answers
someone helpp
solve the following system of equation
Answers
Then move the -2x to the left side of the equation so you would add 2x which you would have 5x then subtract 2 to the right side so you would have -10 so then you would have 5x=-10 so x=-2 then plug in -2 to get the y which is -4 so it would be (-2,-4)
5x-2y=15 solve for y
Answers
Answer:
this should be it
Step-by-step explanation:
Can someone please give me the answers thank u !!!
Answers
Answer:
D.
Step-by-step explanation:
I have been doing this in Geometry.
We know perpendicular means opposite recipicoles and opposite slopes.
so.. the slope is 3 to get the y-intercept you do this.
(1, 2) Use the points it gave you and the slope 3 and put it is y=mx + b form
2 = 3(1) + b (I do this because I don't know what b is yet) (b = y-intercept)
2 = 3 + b (subtract 3 on both sides)
-1 = b
The equation is y = 3x - 1
Hi does anyone wanna do a math homework assignment? it involves volume and algebra (I'm in alg2/trig)
Answers
[tex]\huge\bold\green{Answer:-}[/tex]
Area. The amount of space covered by a two-dimensional object; the amount of carpet you'd need to cover a floor would depend on the floor's area.
Perimeter. The distance around a two-dimensional object; the amount of fence you'd need to surround your yard equals the perimeter of your yard. (The perimeter of a circular object is called the circumference.
Volume. The amount of three-dimensional space inside an object; the amount of liquid inside a soda can represents the can's volume.
Surface area. Measures the amount of "skin" needed to cover a three-dimensional object, neglecting its thickness; the amount of siding you'd need to completely cover a house represents the surface area of that house's walls.
Description Formula Variables
Area of a rectangle A = l · w l = length, w = width
Perimeter of a rectangle P = 2(l + w) l = length, w = width
Area of a circle A = r2 r = radius of circle
Circumference of a circle C = 2r r = radius of circle
Volume of a rectangular solid V = l · w · h l = length, w = width, h = height
Volume of a cylinder V = r2h r = radius; h = height
Surface area of a cube SA = 6l2 l = length of side
[tex]\huge\pink{₣ØⱠⱠØ₩ \: ₥Ɇ}[/tex]
EASY QUESTION JUST NEED SECOND OPINION WILL GIVE BRAINLIEST
Answers
Answer:I think that what you put is correct but I honestly have no idea. Sorry.
Step-by-step explanation:
The Distributive Property mean to multiply
the number against parenthesis by
everything inside. True or false ?
Answers
Answer:
True.
Step-by-step explanation:
Which point represents the fraction 7/10?
M
K
J
L
Answers
-7-2x=7(x+8)
What is the answer for this expression
Answers
Answer:
x=-7
Step-by-step explanation:
1. Distribute the 7 into the parenthesis: -7-2x=7x+56
2. Combine like terms by doing the opposite operation to the numbers: -7=9x+56 (added 2x to 7x)
3. Subtract 56 to each side of the equation: -63=9x
4. To isolate the variable "x," divide each side by 9: x=-7
A is opposite _________???
Answers
How many unit cubes are required to create a larger cube with edge length of 3 units? Can I also get an explanation so I know how it's done? Thanks :)
Answers
Answer:
The unit cubes that are required to create a larger cube with an edge length of 3 units is:
27 cubes.Step-by-step explanation:
To identify the number of cubes you need to create a larger cube, you must think in the number of cubes of the length (3 cubes in this case), and use the exponent 3, because you need to form a cube. Below I'll show you:
[tex]3^{3}= 27 cubes.[/tex]To understand it in a better form, suppose that you need a cube with an edge of 5 units, in that case, remember you use the number 5 how base and the exponent is 3, because is a cube, in that case, it would be:
[tex]5^{3}= 125 cubes[/tex]If it wasn't a cube but a square, you must elevate to the number 2, in the case of the cube is elevated to 3, so, the unit cubes that are required to create a larger cube with an edge length of 3 units is 27 cubes.
Find the domain and the range of the given relation
{(-6, 0), (-1,5), (9, -3), (-3,9)}
Answers
Answer:
domain: {-6, -1, 9, -3}
range: {0, 5, -3, 9}
Step-by-step explanation:
domain is the x-values and range is the y-values
can someone please help me with this question
Answers
Answer: 26322
Step-by-step explanation:
321 x 82
Answer:
26,322 is your answer.
Step-by-step explanation:
"The product" is referring to the answer of two numbers that have been multiplied together. Thus the problem is asking you to find [tex]321*82[/tex].
[tex]321*82=26322[/tex]
A taxi charges a flat rate of $3.00, plus an additional
$0.50 per mile. Carl will only take the taxi home if the cost
is under $10, otherwise he will take a bus. Carl is 15
miles from home. Explain how to write and solve an
inequality to determine if Carl will take the taxi or a bus.
HELP
Answers
Answer:he will take the bus
Step-by-step explanation:
Answer:
Let the variable x be the number of miles. Then the problem can be modeled with the inequality 0.5x + 3 < 10,="" in="" which="">x is the number of miles. To solve, first subtract 3 from each
Step-by-step explanation:
Sample Response!!
Mr. Wong wants to purchase 12 new smoke detectors for his house. Store A sells each smoke detector for $17 and Store B sells each smoke detector for $24. If Mr. Wong purchases all his smoke detectors at Store A, how much less will he spend than if he purchased all the smoke detectors at Store B?
Answers
Answer:
$84
Step-by-step explanation:
so for store A, you would do $17*12 smoke detectors, Which would give you $204. For store B you would do $24*12 smoke detectors. That is $288. Now all you do is 288-204=84. You would save $84 dollars going to store A
An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
The amount less spend by buying in store A than in store B is $84
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example: 2 + 3x + 4y = 7 is an expression.
We have,
The number of smoke detectors to be purchased.
= 12
Store A:
Cost of one smoke detector = $17
Cost of 12 smoke detectors.
= 12 x 17
= $204
Store B:
Cost of one smoke detector = $24
Cost of 12 smoke detectors.
= 12 x 24
= $288
Now,
The difference between the cost of 12 smoke detectors from store A to store B.
= $288 - $204
= $84
Thus,
The amount less spend by buying in store A than in store B is $84
Learn more about expressions here:
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find measure 6
I’ve tried twice and can’t get it
Geometry
Answers
Because i dont feel like explaining trust me
Answer:
i think this is the answer
angle 6 = 11
Step-by-step explanation: