Answers
Answer:
not a function because the points' x-values repeats
Step-by-step explanation:
Related Questions
Find the discriminant and determine the number of real roots for each equation. Show steps.
-3p^2 - 2p = 0
Answers
Answer:
discriminant: 4; number of real roots: 2
Step-by-step explanation:
The coefficients a, b and c of this quadratic are {-3, -2, 0}.
Thus, the discriminant b^2 - 4ac is (-2)^2 - 4(-3)(0), or 4.
Because the discriminant is positive, this quadratic has two real, unequal roots.
-3p^2 - 2p can be factored as follows: -p(3p + 2). If we set this expression equal to zero, we can find the roots: {-2/3, 0}
Help? Please? Thank you!
Answers
Answer:
independent: miles
dependent: minutes/hours
Step-by-step explanation:
can I see the other options for the rest?
In slope-intercept form what is m=-2, b=8/5
Answers
Answer:
y = -2x + 8/5
Step-by-step explanation:
Can someone help me please
Find the sum of -7m and 5m + 2
Answers
Answer:
0
Step-by-step explanation:
Answer:
0
Step-by-step explanation:
pls type the correct question
Which is the slowest reading rate? *
2 points
4 pages in 10 minutes
5 pages in 13 minutes
3 pages in 9 minutes
7 pages in 20 minutes
Answers
explanation: 2.5min/page
A business analyst is investigating whether the mean amount of purchases made by customers at an online department store is greater than $100. The analyst obtained a random sample of 56 orders and calculated a sample mean of $102.30 and a sample standard deviation of $5.30.
Which of the following is an appropriate test for the investigation?
Answers
Answer:
B
Step-by-step explanation:
I don't know
An appropriate test for the investigation is, One sample t-test for sample mean. So option B is correct
What is a random sample ?The process of selecting a sample of data from a population in order to draw conclusions about the population is known as random sampling. Additionally known as probability sampling. Non-probability sampling, often known as non-random sampling, is this sample's opposite. Simple random sampling, stratified sampling, cluster sampling, and multistage sampling are the main forms of this sampling. Convenience samples are often referred to as non-arbitrary samples in sampling methodologies.
Given that,
Population mean = $100
Sample = n = 56
Sample mean = $102.30
sample standard deviation = $5.30
So, all the data mean, standard deviation is given
therefore, t-test used and one type of sample used as well
Hence, It is one-sample t-test for sample mean
To know more random sample check:
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HELP ASAP!!! Make t the subject of 5(t − g) = 2t + 7
Answers
Answer:
t=(7+5g)/3
Step-by-step explanation:
5(t-g)=2t+7
5t-5g=2t+7
5t-2t=7+5g
3t=7+5g
divide both side by 3
t=(7+5g)/3
As per linear equation, the variable 't' is subject of 5(t -g) = 2t + 7 as [tex]t = \frac{5g + 7}{3}[/tex].
What is a linear equation?"A linear equation is an algebraic equation where each term has an exponent of 1 and when this equation is graphed, it always results in a straight line. This is the reason why it is named as a 'linear equation'.
There are linear equations in one variable and linear equations in more than one variable. The standard form of a linear equation in two variables is of the form Ax + By = C. Here, x and y are variables, A and B are coefficients and C is a constant."
The given linear equation is:
5(t - g) = 2t + 7
We can calculate the value of the variable 't' by keeping it in the left hand side of the equation and then rest of the elements on the right hand side of the equation. Now we get:
⇒ 5t - 5g = 2t + 7
⇒ 5t - 2t = 5g + 7
⇒ 3t = 5g + 7
⇒ [tex]t = \frac{5g + 7}{3}[/tex]
Therefore, the value of the variable 't' in terms of the variable 'g' is [tex]t = \frac{5g + 7}{3}[/tex].
To learn more about a linear equation here: https://brainly.com/question/11897796
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SOMEBODY PLEASE HELP ME.Eric and Scott each through a javelin. The height of the javelin that Eric through can be modeled by the function f(x)=-16x^2+64x6 where f(x) represents the height in feet of the javelin after X seconds. The graph represents the height of Scots javelin as a function of time. Which statements are true?THE ANSWER CHOICES ARE IN THE PICTURE PLEASE ANSWER THIS QUESTION RIGHT
Answers
Answer: The maximum height of Scott’s and Eric’s javelins were the same
Step-by-step explanation: bc I put it as my answer and I got it right
A crow is flying at 50 miles per hour takes 30 minutes to fly between two towns. What is the
distance between the two towns in miles?
Answers
Answer:
The two towns are 25 miles apart
Can you please help me solve this
Answers
Using the equation y = kx, we need to find k for that data
150 = k(1250)
150/1250 = k
0.12 = k
You can confirm that by doing the same with the second row, but I won’t put that here. It’s the same.
Dollars/kilowatt-hour is the label for the k of each equation (0.12, 0.15). We calculated dollars divided by (per) kWh.
Company P is less expensive than company M, because 0.12 < 0.15.
We need to buy 2,375 kWh of electricity from company P. The equation y = kx applies, where y is unknown, k = 0.12, and x = 2,375
y = (0.12)(2375)
y = $285
Let me know if you have any questions.
The science club has five female and five male students. The club will randomly select two people to compete in the upcoming science competition.
What is the probability that both people chosen are females?
StartFraction 1 Over 90 EndFraction
One-fifth
Two-ninths
One-fourth
Answers
Answer:
Step-by-step explanation:
(5/10)(4/9)=20/90=2/9
Two-ninths
Answer:
2/9
Step-by-step explanation:
I just answered it on edg.
What is an equation of the line that passes through the point (-1,-3)(−1,−3) and is parallel to the line 6x-y=16x−y=1?
Answers
Answer:
x = -1
Step-by-step explanation:
[tex]6x - y = 16x - y - 1\\-10x = -1\\x = 1/10[/tex]
Since this is the equation of a vertical line, that means that the new one will also just be in the form x = ?.
Since the x - value is -1, the equation is x = -1
Which expression is equivalent to 5 - 3(x + 2)?
Answers
Answer:
2x+4
Step-by-step explanation:
5-3(x+2)
2(x+2)
2x+4
There are 42 students in a class.
Each student walks to school or cycles to school or gets the bus to school.
There are 23 girls in the class.
10 of the girls walk to school.
6 of the boys cycle to school.
7 of the 11 students who get the bus to school are boys.
Find the number of these students who walk to school.
Your final line must say, Number who walk to school = ...
Answers
Answer:
15 students walk to school
Step-by-step explanation:
42 - total students
42 - 23 = 19
----
23 girl students
19 male students
----
19 - 6 = 13
13 - 2 = 11
--
11 - 7 = 3
3 + 2 = 5
--
10 girls walk to school
5 boys walk to school
--
10 + 5 = 15
What are the factors of a(3+ y)
Answers
Answer:
2 factors.
Step-by-step explanation:
A factor is something which is multiplied by something else. (It can be a variable, number or term).
In this example, there are 2 factors: a & (3+y).
Hope this helps! Have a great day!
a(3+y)
Rearrange terms:
(3+)(+3)
Distribute:
a(y+3)
ay+3a
Solution:
ay+3a
The triangle below are similar find the lengths of the missing side.
Answers
Answer:
The answer is b =9
Step-by-step explanation:
20:12=15:b
5:3=15:b
cross multiply
5×b=3×15
5b=45
divide both sides by 5
b=45÷5
b=9
Use the line plot below to determine the number of times less than 14 pieces of trash were collected at recess. A. 0 B. 5 C. 6 D. 9
Answers
Answer:
b
Step-by-step explanation:
because i helped your welcome
PLEEEASE HELP ME, QUICK!!!! ITS WORTH 20 POINTS!!!
tell me if the statement below is sometimes, always, or never true. justify your reasoning, (the Expressions x - 3 + y -3 represent the same value.)
Answers
Answer:
Sometimes true. It may be true at times if x or y equal each other, but if they do not equal each other it is not true
Step-by-step explanation:
We are given two expressions: x -3 and y - 3
Here x and y are two different variables.
These expressions are equal, when the value of x and the value of y are equal.
x - 3 = y -3 if x = y.
Therefore, the two expressions have the same value in sometimes.
That is, when x = y, then the value of two expressions are the same.
Example.
If x = 2 and y = 2, then
x - 3 = y - 3
2 - 3 = 2 - 3
-1 = -1
If they have different values, for x = 2 and y = 3
x - 3 = y - 3
2 - 3 = 3 -3
-1 = 0
Which is not true.
Therefore, the answer is sometimes.
the product of two consecutive integers is 5 more than three times the larger integer. Find the larger integer. please help!
Answers
Answer:
x = 5 or -1
Step-by-step explanation:
let larger integer be: x
the smaller integer is: x-1
(x)(x-1)=5+3(x)
x^2-x-5-3x=0
x^2-4x-5=0
x = 5 or -1
Help please will mark
Answers
Have a good day :D
Bye bye :)
Math: If f(x) = 2x^2 - 5x - 15, what is f(-3)? *
O
24
42
18
3
Answers
Step-by-step explanation:
1 rst. 2 x2-5x-15 da 18 rest
38
4(x + 7) = 38
x +7
x+7
x +7
x +7
Answers
Answer:
x = 2.5
Step-by-step explanation:
4(x + 7) = 38
4x+28 = 38
4x = 10
x = 2.5
which inequality is true if p = 3.4
Answers
help with both please
Answers
Answer:
Step-by-step explanation:
Answer:b)true a)true
Step-by-step explanation:
The function g(x) is a transformation of the parent function f(x). Decide how
f(x) was transformed to make g(x).
A. Horizontal or vertical reflection
B. Horizontal or vertical stretch
C. Horizontal or vertical shift
D. Reflection across the line y
(Graphs attached)
Answers
Answer:- a
Step-by-step explanation:
The perimeter of a regular hexagon is 24x + 48. Which expression below can represent the
length of one side?
А 3x + 6
B 6x + 12
c 4x + 8
D 8x + 16
Answers
Answer:
I believe it would be D, sorry if I didn't get it right!
Step-by-step explanation:
Will mark brainliest
Answers
Answer:
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
Somebody help ASAP hurry
Answers
Answer:
540 divided by 9
Over estimated
Please mark as brainliest!
Overestimated
Thanks!
When Deion was born, his grandfather gave him a 7.5-gram gold coin as a present. Today, Deion read in the newspaper that a gram of gold is worth $50.04. How much money is the gold coin worth?
20 POINTSSSSSSSSSSSSSS
FAST HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answers
Step-by-step explanation:
1 garm = $50.04
7.5 gram = 50.04 × 7.5 = $375.3
May someone please help me with this :)
Answers
= 13
The area = 3.7 * 2.8 = 10.36
2. Perimeter = 11.2
Area = half base times height
2.6 * 1.5 = 3.9 squared