Answer:
3
Step-by-step explanation:
-5x+3y=15 and 2x-3y= -15
Answer:
x = 0; y = 5
Step-by-step explanation:
-5x + 3y = 15
2x - 3y = -15
Add the equations to eliminate y.
3x = 0
x = 0
Now plug in 0 for x in the first equation to solve for y.
-5(0) + 3y = 15
3y = 15
y = 5
Answer: x = 0; y = 5
CAN SOMEONE PLEASE HELP
Step-by-step explanation:
The answer is down here
1. 8
2. 2
3. b
4. f
Find the solution to the system of equations
Answer:
(6,30)
Step-by-step explanation:
This is where the two lines intersect. Also, we can verify our answer by plugging 6 in for x and 30 in for y.
A political scientist wants to estimate the percent of registered voters in Florida who plan to vote for a particular candidate. The political scientist interviews 4000 randomly selected registered voters in Florida and asks who they plan to vote for. 58% say they plan to vote for the candidate. Which of the following statements is true?
a. 58% is a parameter because it describes a population characteristic.
b. 58% is a statistic because it describes a sample characteristic.
c. 58% is a statistic because it describes a population characteristic.
d. 58% is a parameter because it describes a samic characteristic.
Answer:
b.) 58% is a statistic because it describes a sample characteristic.
Step-by-step explanation:
The randomly selected 4000 voters represents a randomly selected observations from the population of registered voters
Hence, 4000 is a sample.
The percentage of voters who would vote for a particular candidate represents a numerical characteristic derived from the sample drawn.
Recall that, numerical characteristics or values which are calculated from the sample is known as statistic while those derived from the population are called parameter.
Hence, 58% is a statistic as it describes a sample characteristic.
You can use definition of parameter and statistic and then can use them to find what does 58% denotes here.
The true statement is given by:
Option B: 58% is a statistic because it describes a sample characteristic.
What is a population and parameter?The entire group or system which we are taking in consideration is population. Nothing bigger than it lies there in consideration.
Ex: If we're taking about health problem in a country, then the whole country people form a population.
If we're taking about numbers on a 6 face die, then those 6 numbers on 6 faces form a population.
Those numbers who summarize information about population are called parameter.
What is sample and statistic?A portion of population taken and analyzed to predict information about population is called sample of that population.
Ex: When someone surveys a group, then he/she surveys a portion and not whole population in general.
Those numbers who summarize information about sample are called statistic.
(Statistic is different than statistics)
Using above definitions to conclude what 58% refers toSince the 58% is from the 4000 people randomly selected by the political scientist, thus, it is information about sample and thus, is a statistic.
Thus,
The true statement is given by:
Option B: 58% is a statistic because it describes a sample characteristic.
Learn more about population and statistic here:
brainly.com/question/3640262
A triangle has an area of 54m2 and a height of 9 m. How long is the base of the triangle? Enter you answer in the box.
Answer:
6 m
Step-by-step explanation:
Base = Area/height = 54/9 = 6m
please help with these math problems +25 points
Answer:
So basically, if it is under 1/2, its unlikely to occur, and if it is 1/2 or greater, it is likely.
Step-by-step explanation:
a is unlikely
b is unlikely
c is likely
d is unlikely
e is likely
f is unlikely
The triangle below is reflected over the line x = 4.
Which transformation(s) would produce the same image?
2676$10
A Reflecting over the x-axis and then translating to the right 4 units
B. Reflecting over the y-axis and then translating to the right 4 units
C Reflecting over the y-axis and then translating to the right 8 units
D Reflecting over the x-axis and then translating to the right 8 units
9514 1404 393
Answer:
C. Reflecting over the y-axis and then translating to the right 8 units
Step-by-step explanation:
Reflection over the line x=4 gives you the transformation ...
(x, y) ⇒ (2·4 -x, y) = (-x +8, y)
This is precisely the same transformation you get by reflection over the y-axis:
(x, y) ⇒ (-x, y)
followed by translation to the right 8 units:
(-x, y) ⇒ (-x +8, y)
__
Reflection over x=4 is the same as reflection over y and translation right 8.
can u pls help me with this question
Find the slope of the line below. Help please!
Answer:
-3/2
Step-by-step explanation:
go up 3 and left 2
what is 1/10 as a percentage
Answer:
10% or .10
Step-by-step explanation:
Please i need help thank you!..
graph the line with the equations y=−x−2?
Answer:
The picture has the graphed line on it.
Solve for x.
x² = 9
x=±3
x=±4.5
x=±18
x=±81
What does -8/9 × -6/7 really equal
Answer:
16/21
Step-by-step explanation:
I need help. Is it possible to do this without graphing?
Answer:
[tex]x=2.3\text{ only }[/tex]
Step-by-step explanation:
We are given the second derivative:
[tex]g^\prime^\prime(x)=0.1x^5-0.29x^4-0.694x^3+1.9136x^2[/tex]
And we want to find the values for -3 < x < 4 in which the graph of g has a point of inflection where the concavity changes from concave up to down.
First, recall that inflection points occur whenever g''(x) = 0 or is undefined.
And that:
g is concave up for an interval if g''(x) > 0 for that interval. g is concave down for an interval if g''(x) < 0 for that interval.Graphing the function (please refer below for the graph), we can see that g''(x) has an inflection point at x = -2.6, 0, 2.3, and 3.2.
If g''(x) changes from concave up to concave down, the values before and after that inflection point must be positive and then negative.
We can see that g''(x) is only positive for the values before the inflection points at x = 0 and x = 2.3.
However, for values after the inflection points, only x = 2.3 becomes negative.
Therefore, since at x = 2.3, the graph changes from positive to negative, this is where the graph of g changes from concave up to concave down.
Notes:
For the point x = 0, the graph stayed positive both before and after x = 0.
Therefore, g does not have an inflection point at x = 0.
write an expression for the operation described below subtract v from 2
Answer:
2 - v
Easy method: plug in v with some other number and see how it rolls out
Answer:
Hi how are you doing today Jasmine
Andre took 6 kicks and made 4 goals:
4/6
. Tom wants to take more than 20
kicks and make an equivalent fraction to Andre. What are two possible
fractions of goals Tom can make?
Answer:
Answers: 40/60 and 400/600.
Step-by-step explanation:
Ok, these fractions are equivalent to 67%, and to 4/6.
Janet uses 6.5 pins of white paint and blue paint to paint her bedroom walls. 2/5 of this amount is white paint,and the rest is blue paint.How many pints of blue paint did she use to paint her bedroom walls?
Answer:
3.9 pints
Step-by-step explanation:
Given:
Caroline uses 6.5 pints of blue paint and white paint to paint her bedroom walls.
2/5 of this amount is blue paint, and the rest is white paint.
To find :
How many pints of white paint did she use to paint her bedroom walls?
Solution:
Caroline uses pints of blue paint and white paint = 6.5
Amount of blue paint = 6.5 - 2.6 = 3.9 pints
Therefore, 3.9 pints of white paint she used to paint her bedroom walls.
can u pls fix the grammer in this Choose the correct punctuation marks in the passage.
It was a rainy day
but Joan and I had planned a trip. Joan wanted to go to the beach for a swim. I wasn't sure if we should go.
"I think we should wait a little longer
at least until the rain shows some signs of slowing down," I suggested.
"We can't swim without getting wet anyway," replied Joan, questioning my choice of swimsuit
the one my mom had bought at a secondhand store.
Answer:
It was a rainy day , but Joan and I had planned a trip. Joan wanted to go to the beach for a swim. I wasn't sure if we should go.
"I think we should wait a little longer , at least until the rain shows some signs of slowing down," I suggested.
"We can't swim without getting wet anyway," replied Joan, questioning my choice of swimsuit , the one my mom had bought at a secondhand store.
Step-by-step explanation:
A recipe calls for 12 cup of milk for every 34 cup of flour.
If Kenny wants to double the recipe, how many cups of flour will he need?
Answer:
68
Step-by-step explanation:
because she wants to double the recipe
so she will need 6 cups of milk
I have attached the question :)
Answer:
The first one
Step-by-step explanation:
the X values are all diffrent
What is the most specific name of the quadrilateral shown below?
quadrilateral
parallelogram
rectangle
square
Answer:
rectangle
Step-by-step explanation:
Answer:
Rectangle
Step-by-step explanation:
this is the answer
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The graph shows Wilson's science scores versus the number of hours spent doing science homework.
What will most likely be Wilson's approximate science score if he does science homework for 6 hours a week?
33 points
42 points
52 points
55 points
Answer:
55 points
Step-by-step explanation:
equation is close to y = 7.1x + 15
y = 7.1(6) + 15 comes closest to 55
The ground temperature at airport is 12 degrees. The temperature decreases by 5.2 degrees for every mile above ground. What would be temperature outside plane located at 3 miles above the airport
Answer:
The outside plane located at 3 miles above the airport is of -3.6 degrees.
Step-by-step explanation:
The ground temperature at airport is 12 degrees. The temperature decreases by 5.2 degrees for every mile above ground.
This means that the temperature in n miles above ground is given by:
[tex]T(n) = 12 - 5.2n[/tex]
What would be temperature outside plane located at 3 miles above the airport
This is T(3). So
[tex]T(3) = 12 - 5.2*3 = 12 - 15.6 = -3.6[/tex]
The outside plane located at 3 miles above the airport is of -3.6 degrees.
These are the new questions, there are 2 here. 2 images, 2 different questions
Answer:
1) 12.62) 18Step-by-step explanation:
Use ratios and solve for x
Q1
27/24 = (3x - 21)/(x + 13)9/8 = 3(x - 3)/(x + 13)3/8 = (x - 3)/(x + 13)8(x - 3) = 3(x + 13)8x - 24 = 3x + 398x - 3x = 39 + 245x = 63x = 63/5x = 12.6Q2
9/14 = (x + 8)/(3x - 2)9(3x - 2) = 14(x + 8)27x - 18 = 14x + 11227x - 14x = 112 + 1813x = 130x = 10EF = x + 8 = 10 + 8 = 18Combine like terms in the expression below.
5c + 6 + 8c - 2
Plz help
Please Help CRieS aAaAaAaAA
Answer:
calme please helpppppooppo
Answer:
kklj
Step-by-step explanation:
A + (b + c) = (A + b) + c
What property is this equation
Answer:
Step-by-step explanation:
Associative property
Lines A and B are parallel
A
130°/2
34
B
5/6
78
m 25 = [? ]°
Enter
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Step-by-step explanation:
measure of angle 5 = measure of angle 1 ( corresponding angle)
measure of angle 5 = 130 °
plz mark my answer as brainlist plzzzz.
hope this will be helpful to you.
Solve for u
U/9= 4/6
the answer is 6............
Answer:
U=6
Step-by-step explanation:
U/9= 4/6
Both side multiply 9
U=4*9/6
U=36/6
U=6