Find the value of the expression 2x2 - 4x2 + 7x – 7 if x= 3. What is the value if x = 2?
Answers
Answer:
if x= 3, so it's 32 if x= 2, so it's 7
Step-by-step explanation:
Related Questions
True or false how do you know?
Answers
Answer:
true
Step-by-step explanation:
figure B is figure A but 3 times the size.
Harper knows he is 50 yards from school. The map on his phone shows that the school is 34 inch from his current location.
How far is Harper from home, if the map shows the distance as 3 inches?
Answers
Answer:
Step-by-step explanation:
To solve this problem you must apply the proccedure shown below:
1. We know that 1 yard is 36 inches, therefore, 50 yards expressed in inches is:
(50)(36)=1800in
2. If he is 50 yards from school and the map shows that the school is 34 inches from his current location, when it shows 3 inches the real distance is:
(1800)(3in)/24in=158.82
3. If you can to express it in yards:
158.82/36=4.41yd
Therefore, the answer is: 158.82 inches or 4.41 yards.
x^4-3x^2+2=0
Đặt ẩn t
Answers
Answer:
[tex] x_{1} = - \sqrt{2} \: .\: x_{2} = - 1 \: . \: x_{3} = 1 \: . \: x_{4} = \sqrt{2} [/tex]
Step-by-step explanation:
x⁴ - 3x² + 2 = 0
x^2×2 - 3x² + 2 = 0
(x²)² - 3x² + 2 = 0
t² - 3t + 2 = 0
t = 1, t = 2
x² = 1, x² = 2
x = -1, x = 1
x = - square root 2, x = square root 2
[tex] x_{1} = - \sqrt{2} \: .\: x_{2} = - 1 \: . \: x_{3} = 1 \: . \: x_{4} = \sqrt{2} [/tex]
which expression are equivalent to 4.53E-4 Select all that apply
Answers
Answer:
4.53
Step-by-step explanation:
hope you get it right
Solve each linear system by :
3x + 2 y =16
2x + 3y = 14
Answers
Answer:
X = 4; Y= 2
Step-by-step explanation:
Y=5
Y-int #1=8
Y-int #2=14/3
7. Write the statements "If you add 3 to one-third of a number, you get 30"
in the form of equations:
(a) x + 3 = 30
(D) x + 3 = 30
(C) x + 3 = 30
(d) none of these
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Answer:
???? none- they're all the same and there's no 1/3
-3 3/5 divided by -1/2
Answers
Answer:
36/5 or 7 1/5 or 7.2
Step-by-step explanation:
-3 3/5 = -18/5
-18/5 * -2 = 36/5
Beth is taking pictures outdoors during the evening. She knows that the later it is when she takes a picture, the longer her camera's shutter has to stay open to get enough light for the picture. O A. The length of time the shutter needs to stay open is a function of how late in the evening it is. O B. The length of time the shutter needs to stay open is a function of how strong her flash is. O c. How late it is in the evening is a function of the length of time the shutter needs to stay open.
Answers
Answer:
c. how late it is in the evening is a function of the length of time the shutter needs to stay open.
Answer:
I think the answer is letter B. The length of time the shutter needs to stay open is a function of how strong her flash is.
Find the Inverse function F(x)=4x-6
Answers
y = 4x - 6
x = 4y - 6; must solve for y in order to solve for inverse function
x + 6 = 4y
(x + 6)/4 = y
or
(x/4) + (6/4) = y
y = (x/4) + 3/2
phil has 3 mangoes he cuts 1 and gives 3\5 to his little brother how much did he keep for him self
Answers
Answer:
2 2/5.
Step-by-step explanation:
Which picture shows a proper
reflection across the red dashed line?
A
B
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find the value of each variable 2x+4x+108
Answers
Answer:
Step-by-step explanation:
2x + 4x + 180
We have to do combine like terms.
2x and 4x are like terms, so add 2x to 4x. Which gives you 6x. Now you have the expres 6x + 180. You can’t find the variable for this expression, its unsolvable. If you meant, “2x + 4x = 180” Then yes, it would be solvable.
All you would have to do Is, 2x + 4x which gives you 6x, and now divide both side by 6. 6x divided by 6, the two 6 would cancel out, and 180 divide by 6, leaving you with 30. So x should equal to 30.
evaluate -0.75(p - 1.2) for p = 2
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Answer:
[tex] - .75(p - 1.2) \\ p = 2 \\ - .75(2 - 1.2) \\ = - .75(.8 ) \\ = .6 \\ thank \: you[/tex]
[tex]▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ { \huge \mathfrak{Answer}}▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ [/tex]
Let's evaluate :
[tex] - 0.75(p - 1.2)[/tex][tex] - 0.75(2 - 1.2)[/tex][tex] - 0.75(0.8)[/tex][tex] - 0.6[/tex]Please solve the math problem... I will mark you brainliest
Answers
Answer: the solution set is {19}
Step-by-step explanation:
AC = DF
6x+41=8x+3
-2x=-38
x = 16
Which expressions are equivalent to (1/3x+x−5/3x)−(−4/3x+2) ?
Select all correct answers.
−2−x+2x
x−2
2−x
−2+x−2x
Answers
Answer:
the answers to this problem are x-2 and -2-x+2x
Step-by-step explanation:
i took the k12 test so i hope this helps
Answer:
i can comfirm its -2 - x +2x and 2-x
Step-by-step explanation:
took the quiz trust me
what does ^ mean in math?
ex: If f(x) = 5 + 4x^2
Answers
for example, 5^2 = 5 squared = 25
Is this pounds or Ounces?
lb:oz
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Well... lb is pounds, and oz is ounces, so Maybe it's in both pounds and ounces? For instance, 2 pounds 3 ounces is equal to 35 ounces...
more heeelp 20 points
Answers
Answer:
c and d
Step-by-step explanation:
like saying you lost half but gained 3 quarters. you end up have 1/4 or 1 quarter left
make the mixed number an improper fraction
9/4*9/5 = 81/20
20 goes into 81, 4 times evenly with 1 left over
4 1/20
The graph of F(x) shown below, resembles the graph of G(x) = x2 but it has been charged somewhat. which of the following could be the equation of F(x)? Please help!!! I’m stuck!!! Thanks!!!!!
Answers
Answer:
es la a espero que te ayude corona
Determine the type of fee that will be charged in each situation. John's broker provided him with stock-trading software to manage his trading. Reggie's broker charged him a front-end load of 2.75% when he purchased a fund. Lisa sold 50 shares of stock A on a given day. Her broker charged her $12 for this trade. Pete isn't a regular investor. He hasn't bought or sold any stock this year. His broker charged him an inactivity fee of $75 for the year. Joanne's brokerage firm charged her for providing investment information to help her make informed choices.
Answers
Answer:
Transaction Fee
- Lisa sold 50 shares of stock A on a given day. Her broker charged her $12 for this trade.
- Reggie’s broker charged him a front-end load of 2.75% when he purchased a fund.
Non-Transaction Fee
- Joanne’s brokerage firm charged her for providing investment information to help her make informed choices.
- Pete isn’t a regular investor. He hasn’t bought or sold any stock this year. His broker charged him an inactivity fee of $75 for the year.
- John’s broker provided him with stock-trading software to manage his trading.
Step-by-step explanation:
Got it right on plato :)
Answer:
Transaction fee:
Lisa sold 50 shares of stock A on a given day. Her broker charged her $12 for this trade.
Reggie’s broker charged him a front-end load of 2.75% when he purchased a fund.
Non-transaction fee
Joanne’s brokerage firm charged her for providing investment information to help her make informed choices.
John’s broker provided him with stock-trading software to manage his trading.
Pete isn’t a regular investor. He hasn’t bought or sold any stock this year. His broker charged him an inactivity fee of $75 for the year.
(g + 4) – 3g = 1 + g
Answers
Answer:
4-2g=1+g
4-1=g+2g
3=3g
G=1
Step-by-step explanation:
A group of 25 students were asked to share their favorite Ice-cream flavor. The results are shown below:
Flavor
Number of Students
Vanilla
7
Chocolate
6
Butter Pecan
5
Strawberry
4
Chocolate Chip 3
Which dot plot matches the data set?
Answers
Answer:
first 7 then 3 5 4 6
Step-by-step explanation:hope it helps
David is making his own strawberry yogurt. In David's mixture, the number of strawberries is proportional to the amount of milk, in cups. David uses 4 cups of milk for every 14 strawberries in his mixture. Which equation represents the relationship between s, the number of strawberries, and m, the number of cups of milk he uses?
Answers
4 cups of milk = 14 strawberries
We want to find out how many strawberries for one cup of milk. We can set a proportion.
4 / 1 = 14 / S
Cross multiply to solve for S.
4S = 14
S = 7/2
S = (7/2)M
Liz is shopping for a game system. Two competing stores offer deals on the system that she wants to purchase.
Where should Liz shop? Show all of your work and explain your reasoning.
Answers
Answer:
Liz should shop at the store with the item with a reasoning price in other words the one that costs less.
Step-by-step explanation:
You didn't give the stores prices but that would be what I would think.
Simplify (−8.5)(−5)( −2). (1 point)
Select one:
a.
850
b.
85
c.
−85
d.
−850
Answers
Answer:
C). -85 is correct answer
Step-by-step explanation:
This is a multiplication problem, so we can just multiply from left to right:
-8.5 x -5 = 42.5
42.5 x -2 = -85 (negative 85)
(Hope this helps can I pls have brainlist (crown)☺️)
Because a negative times a negative equals a negative, and all of these numbers are negatives :)
So you would just simply multiply them all!
Anastasia is grocery shopping with her father and wonders how much shopping is left to do. "We already have 60%, percent of the items on our list," her father says. Anastasia sees 12 items in the cart.
How many grocery items are on the list?
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(could be wrong)
Liam knows the key to making creamy risotto, a rice dish, is to add the liquid to the rice gradually. He adds 5 ladles of chicken broth to his rice before adding seasoning, and he continues to add 2 ladles of broth each minute afterwards.Write an equation that shows the relationship between the number of minutes since Liam added the seasoning, x, and the total number of ladles of broth he has added, y.
Answers
The equation that shows the relationship between the number of minutes and total number of ladles of broth is y = 2x + 5
Let x represent the number of minutes and y represent the total number of ladies.
Since he adds 2 ladles of broth each minute and he has 5 ladies initially, hence:
y = 2x + 5
The equation that shows the relationship between the number of minutes and total number of ladles of broth is y = 2x + 5
Find out more at: https://brainly.com/question/13911928
Answer:
2x+5
Step-by-step explanation:
I did it on IXL:
An image can translate horizontally and vertically at the same time.
O True
O False
Answers
Answer:
False
Step-by-step explanation:
I think this is correct.
Answer:
True
Step-by-step explanation:
Diagonal is the process of moving an image along not only the x-axis but also along the y-axis at the same time.
Sadie is doing weekly payroll for her employees at her car dealership. Her employees make a base salary plus commission. The function LaTeX: E(x)=\mid 5- \frac{6x}{2}\mid models the way Sadie calculates the commission where x represents the number of cars the employee sells. If one of her employees sells 7 cars, how much commission will they make?
Answers
The commission function is an illustration of the absolute functions
The commission for the sales of 7 cars is 16
The function is given as:
[tex]\mathbf{E(x)=\mid 5- \frac{6x}{2}\mid}[/tex]
When an employee sells 7 cars, we have:
x = 7
So, the equation becomes
[tex]\mathbf{E(x)=\mid 5- \frac{6\times 7}{2}\mid}[/tex]
Simplify
[tex]\mathbf{E(x)=\mid 5- 3\times 7\mid}[/tex]
[tex]\mathbf{E(x)=\mid 5- 21\mid}[/tex]
Simplify
[tex]\mathbf{E(x)=\mid- 16\mid}[/tex]
Remove absolute brackets
[tex]\mathbf{E(x) = 16}[/tex]
Hence, the commission for the sales of 7 cars is 16
Read more about absolute functions at
https://brainly.com/question/1389494
Here is a part 2 to my question
Answers
Answer:
1st is (D.) 2nd is (C.) 3rd is (D.) 4th is (A.) 5th is (C.)