HELP ASAP! im really stuck because im dumb and if anyone can help that would be appreciated!
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Consider the function f(x) = 2x^2 - 4x + 9. Evaluate 2f(3) + 3f(-3).
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Answer: 147
Step-by-step explanation:
To evaluate 2f(3)+3f(-3), we first need to find the values of f(3) and f(-3). Given f(x), we just plug in x=3, -3 into f(x).
f(3)=2(3)²-4(3)+9 [exponent]
f(3)=2(9)-4(3)+9 [parenthesis]
f(3)=18-12+9 [subtract]
f(3)=6+9 [add]
f(3)=15
Now, we find f(-3).
f(-3)=2(-3)²-4(-3)+9 [exponent]
f(-3)=2(9)-4(-3)+9 [parenthesis]
f(-3)=18+12+9 [add]
f(-3)=30+9 [add]
f(-3)=39
With the values of f(3) and f(-3), we can evaluate the expression.
2(15)+3(39) [multiply]
30+117 [add]
147
Now, we know the value is 147.
Enter the ordered pair for point J.
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Answer:
-2.5, 1.5
good luck
HELPPPP look at image
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Answer:
She is wrong because each our, she earns 8$. 3 hours would give her $24 and another half-hour would give her 4 more dollars which would bring her to $28
Step-by-step explanation:
I need help with this...
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Answer:
the answer is X=4
Step-by-step explanation:
if you add four as x you'll have to get six and six times five = 30
=P
Answer:
5x+2(5)=30 so 5x+10=30 so x=4
Step-by-step explanation:
if a = and b = -1 what is the value of ab -b^2
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Answer:
-2
Step-by-step explanation:
To solve you need to replace the variables with their numbers.
3(-1) - (-1^2)
-1 x -1 = -1
3 x (-1) = -3
-3 - (-1) =
-2
Given that the expression “p dollars for every q items” describes a unit price, which statement must be true?
p = 1
p = q
q = 1
pq = 1
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Answer:
p=q
Step-by-step explanation:
for example if your paying 2 dollars for every 1 item the ratio would be 2:1
There are 300 dogs spread around 12 kennels across Texas. If x represents kennels and y represents the number of dogs, what is k, the constant of proportionality?
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What is the solution to the problem below
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Name a unit of measurement that is about the same size of the weight or mass of 20 staples.
a Yard or meter
b Ton
c Kilogram or pound
d Gram
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Answer:
d
Step-by-step explanation:
This is because mas and weight is converted into grams then kilograms and more.
ILL GIVE YOU BRAINLIEST AND 10 POINTS IF YOU HELP!!!! i asked before but no one asnwered so here we are.
ANYWAYS
write a word problem that can be represented by the expression 14 1/8 divided by 3.
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Answer:
Keke read 14 1/8 of a book. And she had to read 3 sections in two months. How many more pages does she have to read?
I hope this helps!!!!
Describe and Correct the error.
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Answer:
they forgot to add the 3x
Step-by-step explanation:
A 3-pack of light bulbs costs $3.45. A 4-pack of the same light bulbs costs $4.20.
Which pack has better value?
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Answer:
The 4-pack light bulbs
Step-by-step explanation:
Price of a light bulb in 3-pack
= 3.45÷3
= $1.15
Price of a light bulb in 4-pack
= 4.20÷4
= $1.05
he graph below represents the price of sending video messages using the services of a phone company. What is the constant of proportionality? A graph is shown. The values on the x axis are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10. The values on the y axis are 0, 24, 48, 72, 96, 120, 144, 168, 192, 216, 240. Points are shown on ordered pairs 0, 0 and 2, 48 and 4, 96 and 6, 144 and 8, 192. These points are connected by a line. The label on the x axis is Video Messages Sent. The label on the y axis is Price in cents. 12 24 46 48
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Answer:
24.
Step-by-step explanation:
Basically constant of proportionality is a ratio.
We take two points, we'll take the order pair (2,48)
It will always be y/x so y is 48 and x is 2
48/2 - now we simplify
answer: 24
hope this helps! :))
what are the slope and white intercept of the liner function that is represented by the graph the slope is minus 4/3 and the y-intercept is 3 the slope is -4/3 and the y-intercept is 4 the slope is -3/4 and the y-intercept is 3 the slope is -3/4 and the y-intercept is 4
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©Write your own problem about money or elevation that uses a number and its opposite Solve the problem Then explain what 0 means in your problem. Solve the problem. Then explain what zero means in your problem©
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Answer:
Problem: Ever week James get paid $250 before taxes but after taxes he get a total of $200. If james want to save up for a car that cost $10,000 how many months will have to save to reach his goal .
Step-by-step explanation:
I only need to answer the first one, but I need you to tell me if the others are correct or incorrect, if they are incorrect please help me.
Rotation of 90 degrees counter clockwise of point A (7, 4).
Quadrant of given point: 1
Coordinates after the switch: 4, 7
Quadrant after rotation:
New coordinates after rotation:
Rotation of 180 degrees of point B at (-8, -2).
Quadrant of given point: 3
Quadrant after rotation: 1
New coordinates after rotation: 8, 2
Rotation of 270 degrees clockwise around the origin of point C at (9, -5).
Quadrant of given point: 4
Coordinates after the switch: 5, 9
Quadrant after rotation: 1
New coordinates after rotation: 5. 9
Rotation of 90 degrees clockwise around the origin of point D at (-6, -11).
Quadrant of given point: 3
Coordinates after the switch: 11, 6
Quadrant after the rotation: 2
New coordinates after rotation: -11, 6
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Three friends are selling items at a bake sale. May makes $23.25 selling bread. Inez sells gift baskets and makes 100 times as much as May. Carolyn sells pies and makes one tenth of the money Inez makes. How much money does each friend make?
May:
Inez:
Carolyn:
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Answer:
May = $23.25 Inez = $2325 Carolyn = $232.50
Step-by-step:
May makes that much because it says it in the problem. Inez makes that much because 23.25 times 100 equals 2325. Finally one tenth of 2325 is 232.5
Answer:
may makes 23.25
inez make 2, 325
Carolyn make 232.5
Step-by-step explanation:
just got correct