Mathematics High School
Answers
Answer 1
4/35, 0.114, 11.4%. The answer is B. BTW, can i have a branliest answer? I really need them to move on to the next rank.
Related Questions
The work of a student to solve a set of equations is shown: Equation A: y = 15 – 2z
Equation B: 3y = 3 – 4z
Step 1:–3(y) = –3(15 – 2z) [Equation A is multiplied by –3.]
3y = 3 – 4z [Equation B]
Step 2:–3y = 15 – 2z [Equation A in Step 1 is simplified.]
3y = 3 – 4z [Equation B]
Step 3:0 = 18 – 6z [Equations in Step 2 are added.]
Step 4:6z = 18
Step 5:z = 3
In which step did the student first make an error
Answers
Step 1. Equation B could not have simplified out to 3y= 3 - 4z because Equation A's original equation was y= 15 - 2z. That means after the multiplication by -3, -3(y)= -3(15 - 2z) it would equal -3y= -45 + 6z.
Answer:
Step 2
Step-by-step explanation:
Where did the -3 from the first equation get simplified to?
Step 1: –3(y) = –3(15 – 2z)
Step 2: 3y = 15 – 2z
A bag has four green marbles, three red marbles, and three yellow marbles. What is the probability that you pick a red marble, do not replace it, and pick another red marble? A. 2/15
B.1/15
C.1/9
D.3/10
Answers
Answer:
100% SURE!! 1/15 is the answer!!!
Step-by-step explanation:
Hey there, we need to find a red marble, there are three red marbles, so we need to make a fraction, 3 is the denominator. Now, we need to add up all of the marbles and that will be our numerator, 4+3+3=10. So, the fraction would be 3/10, Therefore, the answer is D. 3/10
A student is trying to solve the system of two equations given below: Equation P: y + z = 6
Equation Q: 8y + 7z = 1
Which of the following is a possible step used in eliminating the y-term?
a (y + z = 6) ⋅ −8
b(y + z = 6) ⋅ 7
c (8y + 7z = 1) ⋅ 7
d (8y + 7z = 1) ⋅ 8
Answers
If you would like to know what is a possible step used in eliminating the y-term, you can calculate this using the following steps:
y + z = 6 /*(-8)
8y + 7z = 1
____________
-8 * (y + z) = -8 * 6
8y + 7z = 1
____________
-8y - 8z = -48
8y + 7z = 1
____________
7z - 8z = 1 - 48
The correct result would be a) (y + z = 6) * (-8).
Answer:
answer a (y + z = 6) * (-8).
Step-by-step explanation:
What is the value of y in the equation 2(2y − 12) = 0?
4
6
7
8
Answers
First you distribute making it 4y-24=0
second you isolate the variable making it 4y=24
finally you divide by four giving you the answer of y=6
Which expression is a quadratic binomial? A.) xy^2
B.) x-y^2
C.) 3+x^2-xy
D.) X^2y-y
Answers
Answer:
B) x-y² is the quadratic binomial.
Step-by-step explanation:
Given : four option with different equation .
To find : Which expression is a quadratic binomial.
Solution : Binomial equation : which has two terms ( separated by two signs )
A binomial is a sum of two terms and Quadratic is a polynomial of the 2nd degree.
Since, x-y² is the quadratic binomial because it has two terms x and y²
Therefore , B) x-y² is the quadratic binomial.
B.) x-y^2 because it has 2 terms which are separated by a sign of operation
How many solutions does the equation 5p − 4p − 8 = −2 + 3 have? One
Two
None
Infinitely many
Answers
Answer:
Option 1 - One
Step-by-step explanation:
Given : Equation
To find : How many solutions does the equation have?
Solution :
Step 1 - Write the equation,
Step 2 - Add 8 both side,
Step 3 - Solve the like terms
Therefore, The solution of the equation is only one as it is linear equation and the solution is at p=9.
So, Option 1 is correct.
Answer:
Answer:
Option 1 - One
Step-by-step explanation:
Given : Equation
To find : How many solutions does the equation have?
Solution :
Step 1 - Write the equation,
Step 2 - Add 8 both side,
Step 3 - Solve the like terms
Therefore, The solution of the equation is only one as it is linear equation and the solution is at p=9.
So, Option 1 is correct.
Step-by-step explanation:
A regular pentagon has a perimeter of 60 feet. How long is each side? 5 feet
6 feet
10 feet
12 feet
Answers
Since all sides are equal in a pentagon, and there are 5 sides; 60/5 is equal is 12 so each side is 12 feet.
The answer is D 12 feet
What is 3 root of 125
Answers
Hey there, 125/5=25 and 25*5=125, Therefore, ∛125=5
A system of equations is shown below: y = 8x − 2
y = 9x − 7
What is the solution to the system of equations?
(−5, 38)
(−5, −38)
(5, 38)
(5, −38)
Answers
Y = 8x - 2
y = 9x - 7
8x - 2 = 9x - 7
- 8x - 8x
-2 = x - 7
+ 7 + 7
5 = x
y = 8x -2
y = 8(5) - 2
y = 40 - 2
y = 38
(x, y)= (5, 38)
The answer is C.
John is playing a game of darts. The probability that he throws a dart into the center of the dart board (the Bull’s eye) is 1/10. The probability that he throws the dart into the 10-point ring is 3/10. What is the probability that he either hits a Bull’s eye or scores 10 points?
a. 1/3
b. 2/3
c. 3/5
d. 2/5
e. 1/4
Answers
The correct answer for the question that is being presented above is this one: "d. 2/5."John is playing a game of darts. The probability that he throws a dart into the center of the dart board (the Bull’s eye) is 1/10. The probability that hethrows the dart into the 10-point ring is 3/10. The probability that he either hits a Bull's eye or scores 10 points is 2/5
Answer: The correct option is (d).
Step-by-step explanation: Given that John is playing a game of darts. The probability that he throws a dart into the centre of the dart board (the Bull’s eye) is and the probability that he throws the dart into the 10-point ring is
We are to find the probability that he either hits a Bull’s eye or scores 10 points.
Let, 'A' and 'B' represents the events that John throws the dart into a Bull's eye and 10-point ring respectively.
Then, according to the given information, we have
Since John cannot throw the dart into the Bull's eye and 10 point ring together, both the events are independent of each other.
Therefore,
From the theorems of probability, we have
Therefore, the probability that John either hits a Bull’s eye or scores 10 points is
Thus, (d) is the correct option.
A town has two malls. 62% of the town’s residents shop at Willow Creek Mall. 73% of the residents shop at Two Harbors Mall. 48% of the residents visit both malls. On any given day, what is the probability that a person chosen at random will visit either Willow Creek or Two Harbors? a. 0.87
b. 0.64
c. 0.62
d. 0.75
e. 0.48
Answers
The correct answer for the question that is being presented above is this one: "b. 0.64. "A town has two malls. 62% of the town’s residents shop at Willow Creek Mall. 73% of the residents shop at Two Harbors Mall. 48% of the residents visitboth malls. On any given day, the probability that a person chosen at random will visit either Willow Creek or Two Harbors is0.64
A set of equations is given below: Equation E: c = 2d + 1
Equation F: c = 3d + 7
Which statement describes a step that can be used to find the solution to the set of equations?
Equation F can be written as c = 3(c − 1) + 7.
Equation F can be written as c = 2(c − 7) + 1.
Equation F can be written as d + 1 = 3d + 7.
Equation F can be written as 2d + 1 = 3d + 7.
Answers
The correct answer is 'Equation F can be written as 2d + 1 = 3d + 7'.In order to find the answer to a system of equations, the two equations must be set equal to each other. For instance, if we had the equations x = y + 1 and x = 3y - 1, we would set the two equations equal to one another to find the answer.
x = y + 1
x = 3y - 1
y + 1 = 3y - 1
1 = 2y - 1
2 = 2y
1 = y
x = y + 1
x = 1 + 1
x = 2
We can use this to solve the set of equations above.
2d + 1 = 3d + 7
1 = d + 7
-6 = d
c = 2d + 1
c = 2(-6) + 1
c = -12 + 1
c = -11
Hope this helps!
Answer:
Its the last choice.
Step-by-step explanation:
I took the test
If f(x) = x + 4 and g(x)=x^2-1, what is (g o f)(x)? x^2-1
x^2+8x+16
x^2+8x+15
x^2+3
Answers
Answer:
boi that answer isn't even a choice
Step-by-step explanation:
2x+3
will be ur answer
A school bus has 25 seats, with 5 rows of 5 seats. 15 students from the first grade and 5 students from the second grade travel in the bus. How many ways can the students be seated if all of the second-grade students occupy the first row? a. 25P20
b. 5P5 × 20P15
c. 5C5 × 25C14
d. 5P5 × 15P15
e. 5P5 × 25C15
Answers
Answer:
The correct option is b.
Step-by-step explanation:
It is given that the school bus has 25 seats, with 5 rows of 5 seats.
The number of students from the first grade is 15 and the number students from the second grade is 5.
The formula to arrange r items in n places is
The number of seats in first row is 5 and the number students from the second grade is 5. So, the total number of arrangement is
The number of seats except first row is 20 and the number students from the first grade is 15. So, the total number of arrangement is
The total number of ways the students can be seated if all of the second-grade students occupy the first row is
Therefore the correct option is b.
Answer:
b
Step-by-step explanation:
plato fam
What is the formula to work out the area of a parallelogram?
Answers
The formula for the area of a parallelogram is:A=bh.That means that thearea isequal to thebasetimes theheightof the parallelogram.
Hey there, the area of a parallelogram is A=b*h. For example, a parallelogram with a base of 7 in and a height of 10 in, you would do 7*10=70, so the answer would be A=70in²
Data Set 1 has a mean of 120 and a MAD of 4. Data Set 2 has a mean of 132 and a MAD of 3. What can you conclude about the two distributions?
Choose exactly two answers that are correct.
A.The means-to-MAD ratio is 3.
B.The means-to-MAD ratio is 4.
C.The distributions are somewhat similar.
D.The distributions are different.
Answers
The right answer for the question that is being asked and shown above is that: "C.The distributions are somewhat similar."Data Set 1 has a mean of 120 and a MAD of 4. Data Set 2 has a mean of 132 and a MAD of 3.you conclude about the two distributions is thatC.The distributions are somewhat similar.
Two lines, C and D, are represented by the equations given below: Line C: y = x + 14
Line D: y = 3x + 2
Which of the following shows the solution to the system of equations and explains why? (5 points)
(6, 20), because both lines pass through this point
(6, 20), because the point does not lie on any axis
(3, 11), because one of the lines passes through this point
(3, 11), because the point lies between the two axes
Answers
If you would like to know what is the solution to the system of equations, you can calculate this using the following steps:
y = x + 14
y = 3x + 2
______________
y = y
x + 14 = 3x + 2
14 - 2 = 3x - x
2x = 12
x = 6
y = x + 14 = 6 + 14 = 20
The correct result would be (x, y) = (6, 20); because both lines pass through this point.
Which equation is quadratic in form? 2(x + 5)2 + 8x + 5 + 6 = 0
x6 + 6x4 + 8 = 0
7x6 + 36x3 + 5 = 0
4x9 + 20x3 + 25 = 0
Answers
Answer: Option 1 is correct.
Step-by-step explanation:
As we know that the quadratic form needs the highest degree to be '2' only.
So,
In Option 1, we have ,
Hence, Option 1 is correct.
Answer:
Option 1 is correct.
Step-by-step explanation:
Given the equations we have to choose the equation which is in quadratic form.
Quadratic form of equation is of the the form
The quadratic form needs the degree to be '2' only.
Option 1:
Hence, Option 1 is correct.
Rest three equations are not of degree 2 therefore not in quadratic form.
Y=3x+2 is the equation of a straight line graph. Where does it cross the y-axis?
Answers
The line crosses the y-axis at point(0,2).You know this because the slope intercept form is y=mx+b. yis any point on the y-axis. mis the slope of the line. xis and point on the x-axis. Finally, b is they-intercept or where the line crosses the y-axis. As a result, your equation has a2forb.So, your answer would be:the line crosses the y-axis at point (0,2). 2 being where the line crosses the y-axis.
Simplify.
n/2-n- 2/n-2.
a. 2-n/n+2
b. 1
c. n+2/2-n
d. -1
Answers
I would choose D I'm not exactly sure though.
