3x^2-12x+39=0 complete the square,and express answer in simplest form
Answer:
x =(4-√68)/2=2-√ 17 = -2.123
Step-by-step explanation:
im 90% sheer this is the answer.
Russell works at a deli making meatball subs. Today, he has made
s
sandwiches so far, and in each sandwich he puts 4 meatballs.
If Russell started with 100 meatballs at the beginning of the day, write an algebraic expression that describes how many meatballs he has left.
Answer
m=100/4-S
Step-by-step explanation:
Estimate a 15% tip on a dinner bill of $47.67 by first rounding the bill amount to the nearest ten dollars.
Answer:
The tip will be $7.2
And the total paid will be $55.20 or $55 rounded
Step-by-step explanation:
The equation is
48 x 0.15 = 7.2
48 + 7.2 = 55.2
55.2 rounded equals 55
Evaluate the expression (10 x 7} + (10 - 6).
10 times 7 = 70
10 - 6 = 4
70 + 4 = 74
Answer:
70x+4
Step-by-step explanation:
simplify the expression
tip: u can use mäthwäy next time ;) its really helpful
I need help on questions two lol pls help me
Is 2 + 2 = 3? Who thinks its 3 ?
Answer:
♡ hi there luv ♡
it's 4 because if you have
2 chocolate bars and have
another 2 and you put them
close together and count,
you will get 4. i hope this helps!
- madeline/madi
✧･ﾟ: *✧･ﾟ:･ﾟ✧*:･ﾟ✧･ﾟ ✧･ﾟ: *✧
Step-by-step explanation:
√4x+1=3
How do I answer thid
Answer:
1
Step-by-step explanation:
√4x+1=3
√4x = 3 - 1
√4x = 2
squaring both sides,
(√4x)² = 2²
4x = 4
x = 4/4
x = 1
Need your help, Answer ASAP PLZZ!!!
Answer: m∠IJH = m∠JHL because they are Alternate Interior Angles
Step-by-step explanation:
Help me?! Solve for x
Answer:
15x-5+65=180
15x+60=180
15x=120
x=120/15
x=8
Two similar triangles are in the ratio 2:3. If the sides of the bigger triangle are 15 units, 12 units and 9 units, then the length of the shortest side of the smaller triangle is
a. 8 units
b. 6 units
c. 9 units
d. 5 units
It is 6 units because if you divide 9 by 3 you get 3 and you multiple that by 2 to make it 6:9 which is equal to 2:3
WILL GIVE EXTRA POINTS
Assignment name: solving angles pairs
Answer:
x = 26
Step-by-step explanation:
Alternate exterior angles are always congruent
3x - 8 = 70
Add 8 to both sides;
3x = 78
Divide both sides by 3;
x = 26
4. If f(x) = 4x-8 and g(x)=x-2, evaluate (f-g)(x).
algebra 2
Answer:
(f - g)(x) = 3x - 6
General Formulas and Concepts:
Pre-Algebra
Distributive PropertyAlgebra I
Combining like termsStep-by-step explanation:
Step 1: Define
f(x) = 4x - 8
g(x) = x - 2
(f - g)(x) is f(x) - g(x)
Step 2: Find
Substitute: (f - g)(x) = 4x - 8 - (x - 2)Distribute negative: (f - g)(x) = 4x - 8 - x + 2Combine like terms: (f - g)(x) = 3x - 6simplify like terms 2x-5x
Answer:
-3x
Step-by-step explanation:
Subtract 2 from 5
Hope this helped, Have a great day!!
Answer:
-3x
Step-by-step explanation:
Combine like terms. Like terms are terms with the same amount of variables. Note that both terms (2x & -5x) both have one x in all.
Subtract the coefficients:
2x - 5x = -3x
-3x is your answer.
~
Solve the linear equation -3x+3=12
Which transformation rule below translate points 5 units to the left and 2 units up? *
(1 Point)
(x y) --> (x + 5, y + 2)
(x, y) --> (x - 5. y - 2)
(x, y) --> (x + 5. y - 2)
(x, y)--> (x - 5. y + 2)
Please I need help
Answer:
(x, y)--> (x - 5. y + 2)Step-by-step explanation:
Given the coordinate (x, y), when transforming the coordinate, up and right, the value of the constant we are using must be added to the coordinate since positive x axis acts towards the right side and the positive y axis acts upwards.
Also, when transforming the coordinate down and left, the value of the constant we are using must be subtracted from the coordinate since negative x axis acts towards the left side and the negative y axis acts downwards.
According to the question, we are to translate the coordinate (x, y) 5 units to the left and 2 units up,
Translating 5 units to the left means the x coordinate will become x--> (x-5)
Translating 2 units up means the y coordinate will become x--> (x+2)
Hence the correct transformation rule will be (x, y)--> (x - 5. y + 2)
9. Which is a solution of the equation 5(x – 8) = -55 ?
a) x = 3
b) x = 13
c) x = -3
d) x = -9.4
Answer: c. x = -3
5(x - 8) = -55
⇔ 5x - 40 = -55
⇔ 5x = -55 + 40 = -15
⇔ x = -15/5
⇔ x = -3
Step-by-step explanation:
Li is making beaded necklaces. For each necklace, she uses 34 spacers, plus 7 beads per inch of necklace length. Write an equation to find how many beads Li needs for each necklace, where x is the length, in inches, of the necklace. The equation that represents this situation is y =
Answer: Y = 7x+34
Explanation : if there are 7 beads per inch that means that for every inch there are 7 more beads. and the 34 for is an unchangeable factor that stays the same throughout the equation
Answer:
7x+34
Step-by-step explanation:
3. 38x – 7x what is the answer
Answer:
31
Step-by-step explanation:
38,37,36,35,34,33,32,31
Answer:
31x
Step-by-step explanation:
38x - 7x = 31xI hope this helps!
Write the letter of the correct answer on your answer sheet. If your answer is not found among
the choices, write the correct answer.
For items 1-5, refer to the graph at the right.
____1. Which of the following could be the equation of the parabola?
A. = ( − 2)2 + 1 C. = ( + 1)2 + 2
B. = ( + 2)2 + 1 D. = ( − 1)2 + 2
____2. Determine the y- intercept of the graph?
A. = −5
C. = 5
B. = −3
D. = 3
____3. What is the range of the parabola?
A. {:≥1}
C. {:≥ -1}
B. {:≤1}
D. {:≤ -1}
____4. What is the axis of symmetry of the graph?
A. x = 2
C. y = 2
B. x = 1
D. y = 1
____5. What is the vertex of the parabola?
A. (-2, -1)
C. (2, 1)
B. (-2, 1)
D. (2, -1)
____6. Describe the graph of () = −2 + 6 − 24
A. Opens to the right
C. Opens to the left
B. Opens upward
D. Opens downward
____7. What is the y-intercept of the parabola defined by the equation = ( + 2)2?
A. -4
B. -2
C. 2
D. 4
____8. What is the minimum value of the graph of the quadratic function = 2 + 4?
A. -4
B. -2
C. 2
D. 4
____9. What is the vertex of the parabola having the equation y = (x – 3)2 + 1?
A. (3, -1)
B. (-1, 3)
C. (1, 3)
D. (3, 1)
____10. What is the vertex form of the equation =2−4+7?
A. =(−2)2−3
C. =(+2)2−3
B. =(−2)2+3
D. =(+2)2+3
____11. The equation of the axis of symmetry of the function = −22 + 5 is____.
A. x = 5
C. − 4
3
B. x= -2
D. 5
4
____12. Which of the following equations of parabola has a wider opening? A. y = 1
4
2
C. y = 3x2 B. y = 1
2
2
D. y = 5x2
____13. Determine the equation of the resulting graph when the parabola with the equation
y = x2 + 3, is shifted 4 units downward.
A. y = x2 – 4
C. y = x2 + 1
B. y = x2 – 1
D. y = x2 + 7
For items 14-15, refer to the graph at the right.
____14. Which of the following could be the equation of the parabola?
A. = −2 + 5
C. = 2
2
+ 5
B. = − 2
2
= 5
D. = 2 + 5
____15. What is the vertex of the parabola?
A. V(-5, 0)
C. V(0, 5)
B. V(0, -5)
D. V(5, 0)
Answer:
Hello dear asker, you have to put the picture of the graph, then I would be happy to help
Why you shouldn't pick on a girl for their grens
Answer: be cause they will choke and leave you for no reason
Step-by-step explanation:
Answer:
?
Step-by-step explanation:
Please answer this question shown in the picture! Thank you soooo much if you do! ;w;
Answer:
3.07 . 10^8.
Step-by-step explanation:
2.3 . 10^8 + 4.7 . 10^7
= 230,000,000 + 77,000,000
= 307,000,000
= 3.07 . 10^8.
Item 2
Which equation is true when m = 0.4?
3m = 12
20m = 8
m−1=0.6
12m = 3
Answer:
The answer is 20m=8
Answer:
20m=8
Step-by-step explanation:
8/20=0.4 making m=0.4
24 + (-9) - 44 + 33 - 17
word problem form
PLZ HELP, ILL GIVE BRAINLIEST! CAPTURE BELOW
Answer:
5 and no
Step-by-step explanation:
i belive
Find the slope and the y-intercept of the linear equation: y = 2x + 9
a. slope: 9; y -intercept: 2
b. slope: 2; y-intercept: 9
c. slope: 1/2; y-intercept: 9
d. slope: 1/9; y-intercept: 2
Which of these medical devices typically uses the most advanced and recently developed technology?
I think it is the 4th answer !!!!!
Is anyone willing to help me solve Absolute Value homework?? It doesn't look awful but I just do not understand.. Help would be Much appreciated!!!
A 52kg person walks from the ground to the roof of 78.52m tall building. How much gravitational potential energy is there?USE GRESA METHOD
Answer:
P = 40013.792 J
Step-by-step explanation:
Given that,
Mass of a person, m = 52 kg
The height of the building, h = 78.52 m
We need to find the gravitational potential energy at this point. It is given by the formula as follows :
P = mgh
Where g is acceleration due to gravity
P = 52 kg × 9.8 m/s² × 78.52 m
P = 40013.792 J
So, the gravitational potential energy is 40013.792 J.
So if Stacy has 2 dollars in her account. She deposits 6 dollars in her bank account each week. Model this situation as a linear function and graph.
Answer: 2 + 6x
Step-by-step explanation:
i cannot do the graph here but you just have to put the amount deposited in this instance as the variable and you got your answer
Answer:
2+6
Step-by-step explanation:
Whats the inverse to f(x)=6x-19
Answer: x=6y−5 x = 6 y - 5.
Step-by-step explanation:
I answered this math question edge.