Given the following functions, find the indicated values.
f(x) = 9 - 3x
(a) f(-4) (b) f(0) (c) f(2)
Answers
Answer:
hope it helped have a good day mate
Related Questions
Nancy has 1/3 of a cup of strawberries. She wants to share them with her 4 friends. How much will each of her friends get?
Answers
formulas A=bh/2 A=bh and I have 6in 4in 6in 10in and I have to find the area
Answers
Answer:
Lots of "ifs" here.
A=bh/2 is the formula for the area of a triangle.
A=bh is the formula for the area of a rectangle or a parallelogram.
If the 6 & 4 area the base & height of a rectangle, then (6)(4) = 24 in^2
If the 6 & 10 are the base and height of a triangle, then 1/2(6)(10) = 30 in^2
Step-by-step explanation:
Similar triangles are congruent.
sometimes
always
never
Answers
1/3x = 5 - 1/3x what is the solution of this equation?
Answers
2x - 15 = 0 x = 15/2 aka 7.5
Hope this helps!
-zomba
Nancy started the year with $425 in the bank and is saving $25 each week. Sam started the year with $705 but is spending S15 a week. Write a system of equations that model the following situation.
Define cach variables with a "Let" statement, write two equations, and solve completely.
Answers
Answer:
Step-by-step explanation:
Let x equal number of weeks and y equal money in the bank.
Nancy, y=425+25x
Sam, y=705-15x
The system of equations:
Nancy: [tex]y=\$425+\$25x[/tex]
Sam : [tex]y=\$705-\$15x[/tex]
Given:
Amount in Nancy's bank = $425
Amount saved by Nancy each week = $25
Amount in Sam's bank = $705
Amount spend by Sam each week = $15
To find:
The system of equations describing the given models.
Solution
1) Amount in Nancy's bank = $425
Amount saved by Nancy each week = $25
Let the number of weeks Nancy saving her money be 'x'.
Let the total amount of money in Nancy's bank after x weeks be 'y'.
[tex]y=\$425+\$25\times x\\y=\$425+\$25x[/tex]
The equation for Nancy:
[tex]y=\$425+\$25x[/tex]
2)
Amount in Sam's bank = $705
Amount spend by Sam each week = $15
Let the number of weeks Sam spending his money be 'x'
Let the total amount of money left in Sam's bank after x weeks ='y'
[tex]y=\$705-\$15\times x\\y=\$705-\$15x[/tex]
The equation for Sam:
[tex]y=\$705-\$15x[/tex]
Learn more about system of equations here:
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Correct will get brainliest!!!!!!!
Answers
Answer:
Third option is the correct answer
Step-by-step explanation:
Point T is between the point R and point S.
Choose all of the expressions that are equivalent to 1/4 + 7/8. A. 2/8+7/8 B. 4/16+15/16 C. 8/24+21/24 D. 7/32+28/32 E. 10/40+35/40
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1 10
_ X10 = __
4 40
7 35
_ X5 = __
8 40
Answer:
A & E are correct. I have the same question as you.
Step-by-step explanation:
Just trust me its a and e
Directions:
Using the digits 1 to 6, at most one time each, fill in the
boxes so that top two equations are equal and the
bottom equation has the greatest value.
You can move the numbers around on the graph to
help.
First Attempt:
column 1
column 2
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-2-1=-3
-4-(-5)=1
can someone please help me with this I'm being timed help asap
Answers
Answer:
for every x the y moves -4
Step-by-step explanation:
Solve the system by substitution.
y = 5x
y = 9x + 4
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Answer:
(-1, -5)
Step-by-step explanation:
[tex]\left \{ {{y=5x} \atop {y=9x+4}} \right.[/tex]
1. We must calculate x, for that we must substitute y, so we have:
5x=9x+4
2. Now we solve the equation.
5x-9x=4
-4x=4
x=-1
3. Now we must calculate y
y=5x
y=5(-1)
y=-5
And the answer is (-1, -5)
dfdhdbdgjkf,gdg help pls :)
Answers
Answer:
-0.8375
Step-by-step explanation:
is this a function or not
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Answer: neither are functions
Step-by-step explanation:
Please, help me!!
My answer is
g: 43
h: 137
m: 49
K: 31
But I'm not sure.
Answers
Answer:
G is correct
H is correct
M is correct
K is 131
Step-by-step explanation:
Angles in a straight line add up to 180 degrees
Answer:
g: 43
h: 137
m: 49
K: 131
Step-by-step explanation:
i got it right
a) ¿Cómo varia el volumen de una piramide en relación a su altura si el área de la base no cambia?
Answers
Answer:Step-by-step explanation:
Answer:
si cambia su volumen cada vez se pone mas fina la piramide
Ava’s lunch bill was $8.70 and Allanah’s was $10.30. The girls’ uncle paid for the lunches and left a 15% tip. What amount did the girl’s uncle leave for a tip?
A) $2.85
B) $3.00
C) $21.85
D) $19.00
I appreciate anyone who answers this. ;)
Answers
Answer:a
Step-by-step explanation:
a because I just took the test
Answer:
your answer is d. $21.85
Andre is running in an 80-meter hurdle race. There are 8 equally-spaced hurdles on the race track. The first hurdle is 12 meters from the start line and the last hurdle is 15.5 meters from the finish line.
Estimate how far the hurdles are from one another. Explain your reasoning.
Calculate how far the hurdles are from one another. Show your reasoning
Answers
Answer:600 and 3
Step-by-step explanation: I Just know the answer sorry
Answer:
it isnt 600 and 3 it is 32 meters.
Step-by-step explanation: Lol these idiots
Provide an exact evaluation of the expression:
Answers
-1/2 is the answer hope it's correct
The total cost of making a daily taco special for a restaurant is represented by the function C (t) = 2.5t + 1 , where t is the number of tacos made. How does the total cost change for every taco special the food truck makes?
A. The total cost increases by $1.
B. The total cost increases by $2.50.
C. The total cost decreases by $1.
D. The total cost decreases by $2.50.
Answers
Answer:
C. The total cost increases by $2.50
Step-by-step explanation:
This is because 1 dollar is constent--- you will always have 1 dollar.
However 2.5 is the change, you have to times a number to get the answer.
EX:
(t) = 2.5t + 1
(4) = 2.5( 4) + 1 ----- plug in 4 for t
= 10 +1
= 11
The is the multiplyer or change is the 2.5t
and when you graph it it will almost always be the slope of the line.
I need help.................
Answers
Answer:
-33 and -21
Step-by-step explanation:
-36, -33, -30, -27, -24, -21, -18
-36
-36 + 3 = -33
-33 + 3 = -30
-30 + 3 = -27
-27 + 3 = -24
-24 + 3 = -21
-21 + 3 = -18
Find the quotient:
2x² – 9x - 5
x-5
10)
Type answer here
Answers
Answer: 2x+1
Step-by-step explanation:
A school district currently has 12,000 students. Based on declining enrollment figures, the number of students in the school district is expected to decline by 5% each year. Which of the following functions represents the number of students, S, in the school district after n years?
Answers
Answer:
S(n) = 12,000(–0.05)n
Step-by-step explanation:
The function that represents the number of students, S, in the school district after n years is [tex]S=12000(0.95)^n[/tex]
Original population , P = 12000
Rate of decline, r = 5%
r = 5/100
r = 0.05
The number of years = n
The population of students after n years will be given by the formula:
[tex]S =P(1-r)^n[/tex]
Substitute r = 0.05 and P = 12000 into the formula above
[tex]S=12000(1-0.05)^n\\\\S=12000(0.95)^n[/tex]
The function that represents the number of students, S, in the school district after n years is [tex]S=12000(0.95)^n[/tex]
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HELP ASAP
Simplified the expression
Answers
Answer:
5/x subscript 2
Step-by-step explanation:
In 8 hours if Martha writes 2 essays, how many essays can she write in 15 hours?
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Answer:
Martha can write 3.75 essays in 15 hours. (Which is a lot for me)
Step-by-step explanation:
First, I divide 2 by 8.
2 ÷ 8 = 0.25
Next I multiply 0.25 by 15.
0.25 * 15 = 3.75
So, the answer is 3.75
Hope this helps! :)
Step-by-step explanation:
in 8 hours she wrote = 2 essay
in 1 hour she wrote = 2/8 = 1/4
in 15 she wrote = 15 × 1/4 = 15/4 or 3.75 essays .
plz mark my answer as brainlist plzzzz.
hope this will be helpful to you.
Can one of yallz answer this ????????? >:D
Answers
Answer:
(0,3) x=0 and y=3
Please Find the solution to the following system using substitution or elimination: y = 3x + 7 y = -2x -3
A. (-2,1)
B. (-2,-7)
C. (1,10)
D. (1,-4
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see image explanation attached
7-x=-2
find the variable
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Answer:
Step-by-step explanation:
7-x=-2
-x=-2-7
-x=-9
x=9
Which of the follow is true about it
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______________________________
1.) Solve [tex]\bold{\sqrt{73}}[/tex]:[tex]\sqrt{73}[/tex] ≈ [tex]8.544003745[/tex]
So your answer is [tex]\bold{On~the~left~of~9}[/tex].
______________________________
PLEASE HELP
A line goes through the point (2,5) and has a slope of 1.5. What is an equation of this line?
Answers
Answer:
y=1.5x+2
Step-by-step explanation:
y-y1=m(x-x1)
y-5=1.5(x-2)
y=1.5x-3+5
y=1.5x+2
i need help with geometry
Answers
Answer:
x = 119, y = 55
Answer:
x = 119°
y = 55°
Step-by-step explanation:
y + 125 = 180 {linear pair}
y = 180 - 125
y = 55°
Sum of all the angles of quadrilateral = 360
x + 55 + 72 +114 = 360
x + 241 = 360
x = 360 - 241
x = 119°
What is the sign of f on the interval?
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The function f(x) will be sometimes positive and sometimes negative on the interval
Option (3) is correct.
What is a function?An arrangement known as a function connects inputs to essentially one output.
In other words, a function is a relationship between variables, and the nature of that relationship—for example, y = sinx and y = x +6—defines the function.
Given function:
f(x) = (x - 5) (2x - 7) (7x - 3)
The term (x - 5) will be negative if x < 5.
The term (2x - 7) will be negative if x<3.5
So, If x = 4, (x - 5) will be negative but (2x - 7) will be positive, resulting in a negative overall value.
Therefore, if x = 3, then (x - 5) will be negative, as well as (2x - 7), making the whole value negative.
Hence, the function f is sometimes positive and sometimes negative on the interval.
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