the answer would be (0,5)
NOBODY'S ANSWERING MY QUESTION, HELLO? I WILL GIVE BRAINLIEST :(
Answer:B
Step-by-step explanation:
Answer:
(C) I and III only.
Step-by-step explanation:
Hello! It's me again! Let's help you with this question too!
Now, let's start understanding what information is given to us.
[tex]a < b < 0[/tex]
This means that, some integer a is lower than some integer b and b is lower than 0. So right out of the gate, both integer a and b are both negative numbers. Here, we can evaluate all 3 possibilities like so:
I. [tex]\frac{a}{b} > 0[/tex]
To start, let's see if this is true. The simplest way is to substitute values into integer a and b to where [tex]a < b < 0[/tex] holds true as well. For this example, we can say [tex]a=-2[/tex] and [tex]b=-1[/tex]. If we evaluate as such, it would be:
[tex]\frac{-2}{-1} > 0[/tex]
[tex]2 > 0[/tex]
From this example, 2 is higher than 0. Meaning this is true. Now, it'll be true for every value due to something called the fraction rule. Fraction rule is simply just stating that, if the numerator and denominator both have a negative sign, they cancel each other out and become a positive fraction. So, we can say I. is true.
II. [tex]-b > -a[/tex]
This is simple to prove, all it's saying is that negative integer b is always going to be higher than negative integer a. Using our same example from I. we can substitute as such and evaluate:
[tex]-(-1) > -(-2)[/tex]
[tex]1 > 2[/tex]
Here, we can see that 1 is not greater than 2 and no matter what numbers you substitute, that will always be the case because you're essentially putting the lowest number first and seeing if it's greater than the lower number. So II. is false.
III. [tex]0 < \frac{b}{a} < 1[/tex]
Now this one is a bit more difficult. However, there isn't much we need to do here. This is saying that 0 is lower than [tex]\frac{b}{a}[/tex] but [tex]\frac{b}{a}[/tex] is lower than 1. Let's split this into 2 parts.
Part 1: [tex]0 < \frac{b}{a}[/tex]
This isn't the same as I. as the numerator and denominators have switched. Let's use the values we've set back in I. to see if this holds true:
[tex]0 < \frac{-1}{-2}[/tex]
[tex]0 < \frac{1}{2}[/tex]
From here, we find that it is true. And it also holds true that it is less than 1. We can use another set of values to see if this still holds. Let's try [tex]a=-7[/tex] and [tex]b=-3[/tex]:
[tex]0 < \frac{-3}{-7}[/tex]
[tex]0 < \frac{3}{7}[/tex]
As you can see here, using the fraction rule. So long as there is an integer a and b are different (they always will be because of [tex]a < b < 0[/tex]), regardless of what they will be, it will always give us a fraction answer. And a fraction answer will always be lower than 1. Therefore, III. is also true.
So, the answer to this question is C. I and III only
Question Progress
Homework Progress
7/21 Marks
Solve the equation
3x-2
4
-
2x-5
3
=
1+x
6
Answer: x= 1.20833
The way it was written was a little confusing but hope this helps, This may be wrong just re write it for me and it should be correct next time.
Step-by-step explanation:
Step 1: Make parentheses
( 3x - 2 ) 4 ( -2x - 5 ) 3 = ( 1 + x ) 6
Step 2: Solve parentheses ( Multiplication and division first )
(4 * 3x = 12x) - (4 * 2 = 8) -> 12x - 8
(-2x * 3 = -6x) - (3 * 5 = 15) -> -6x - 15
(6 * 1 = 6) + (6 * x = 6x) -> 6 + 6x
New and improved equation:
-12x - 8 - 6x - 15 = 6 + 6x
Step 3: add like terms
-12x - 6x = -18x
-8 - 15 = -23 so...
-18x - 23 = 6 + 6x
Step 4: solve it
-18x - 23 = 6 + 6x
+ 23
-18x = 29 + 6x
-6x
-24x = 29
x= 1.20833
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there is an ongoing debate about how many spaces should be placed after a period in typed documents. alana read about a study where 100100100 participants all read the same document typed in courier new font. half of the participants were randomly assigned the document with one space after each period, and the other half were given the document with two spaces after each period. participants who read the document with two spaces after each period were able to finish reading significantly faster than those with one space after each period. alana concluded that using two spaces after each period will help people read all documents faster. why is alana's conclusion not appropriate?
Alana's conclusion from the study is not appropriate.
Why is Alana's conclusion from the study is not appropriate?
In this study, there was no attempt made to research the alternative fonts. Alana reads about the study that includes only courier new font and arrives at a conclusion.The study in inconsistent with the standard scientific methods as it is not inclusive of all factors and possibilities and is thus inappropriate.What is an appropriate study?
The achievement of the research objectives is ensured by an appropriate study design. The important element of appropriate studies known as formulated research are missing from observational studies.Observational studies are in which the outcome is not tried to be altered through analysis unlike appropriate studies.This describes an investigation of a specific phenomenon that meets all requirements and adheres to the scientific method.To learn more about appropriate studies, refer:
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Triangle X has two angles that measure 80° and 30°. Triangle Y has two angles
that measure 80° and 70°. Hannah says that triangles X and Y are not similar.
Jasmine says they are similar. Who is correct? Explain. HELPPP PLEASE
Answer:
Jasmine is correct. The triangles are similar.
Step-by-step explanation:
Triangle that have the same angle measurements are similar.
The sum of the interior angles of a triangle add up to 180
Triangle x has angles that measure 80 and 30. That totals 110. The third angle must be 70 so that it adds up to 180.
Triangle Y has angels that measure 80 and 70. That adds up to 150, that means that its third angles must be 30
Both triangles have angle measurements to 80, 70, and 30 so they are similar.
with pic. Which of the following functions is graphed below?
The picture is represented by the absolute value function g(x) = |x - 5| - 4. (Correct choice: A)
How to derive the absolute function associated with the picture
Absolute values are functions defined by the following piecewise function:
f(x) = |x| = x for x ≥ 0.f(x) = |x| = - x for x < 0.The function in the picture is the consequence of the following rigid transformations:
Horizontal translation 5 units in the + x direction.Vertical translation 4 units in the - y direction.Now we proceed to obtain the image of f(x):
Horizontal translation
f'(x) = |x - 5|
Vertical translation
g(x) = |x - 5| - 4
The picture is represented by the function g(x) = |x - 5| - 4.
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5. Which equation is solved for the height of the cone based on theinformation given below?The equation V = 1 r represents the volume of a cone, where is the radius of the cone andh is the height of the coneh=V - Tr?h= } #r?VB3V - #r2 = h3Vha?D
We need to make h the subject of formula:
[tex]\begin{gathered} All\text{ the variables on the right are multiplied together.} \\ \text{First we get rid of the 1/3 by multiplying both sides by 3:} \\ 3(V)\text{ =3( }\frac{1}{3}\pi r^{2}h) \\ 3V\text{ = }\pi r^{2}h \end{gathered}[/tex][tex]\begin{gathered} \text{For h to stand alone on the right side, we divide both sides by }\pi r^2h \\ We\text{ apply division beause all the variables were ultiplied together} \\ So\text{ to undo it, we divide} \\ \frac{3V}{\pi r^{2}}=\text{ }\frac{\pi r^{2}h}{\pi r^{2}} \\ \frac{3V}{\pi r^2}=\text{ }h \end{gathered}[/tex][tex]h\text{ = }\frac{3V}{\pi r^{2}}\text{ (option D)}[/tex]-6/5 k -3/4 = -2 + 1/7 k solve for k
hello
to solve for k, we'll do it in a stepwise manner
step 1
collect like terms
[tex]\begin{gathered} -\frac{6}{5}k-\frac{3}{4}=-2+\frac{1}{7}k \\ -\frac{3}{4}+2=\frac{1}{7}k+\frac{6}{5}k \end{gathered}[/tex][tex]\begin{gathered} -\frac{3}{4}+2=\frac{1}{7}k+\frac{6}{5}k \\ \text{take LCM} \\ -\frac{3+8}{4}=\frac{5+42}{35}k \\ \frac{5}{4}=\frac{47}{35}k \end{gathered}[/tex]step 2 above was to take LCM
step 3
cross multiply both sides and solve for k
[tex]\begin{gathered} \frac{5}{4}=\frac{47}{35}k \\ 4\times47=(5\times35)k \\ 188=175k \\ k=\frac{188}{175} \\ k=1.074 \end{gathered}[/tex]this is NOT a test or Quiz its a homework pic is below
From the information given,
Jack wants to eat 2 1/5 of his plate in 1/3 hour. The first step is to convert 2 1/5 to improper fraction. It becomes 11/5
The statement would be
Jack wants to eat 11/5 of his plate in 1/3 hour.
Let x represent how much of his plate that he will eat in 1 hour. Therefore
11/5 = 1/3
x = 1
By cross multiplying, it becomes
x * 1/3 = 1 * 11/5
x/3 = 11/5
x = 11/5 * 3
x = 33/5
Converting to mixed fraction, it becomes
6 3/5
The correct option is the first one
Based on the given diagram, complete the sentence below.
Point D is the centroid of ΔABC, since we know that A.F, BC, and CE are all medians.
What is the Median of a Triangle?A median of a triangle is the line segment that connects the vertex of a triangle to the midpoint of the opposite side. There are usually three medians of a triangle.
What is the Centroid of a Triangle?The point where the three medians of a triangle intersect each other or meet at is referred to as the centroid of the triangle.
The diagram shows a triangle with three medians that meets at point D in the triangle. Therefore, point D is the centroid of the tringle because lines A.F, BC, and CE are all medians of the given triangle.
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a certain store has 3,000 employees working at its main location in a city and 100 employees working at a smaller location outside the city. the store manager will select a sample of 50 employees from all the employees to ask their opinions about extending store hours during the holidays. what is the advantage of selecting a stratified random sample, with location as strata, instead of a simple random sample? responses
The answer is the stratified sample assures that the opinions of employees from both locations will be represented..
The survey results will accurately reflect the opinions of both urban and rural employees if you choose this option. By soliciting feedback from employees in both regions, it will be possible to ensure that any policy based on the results of this survey not only represents the interests of urban employees, who make up the bulk of the workforce, but also those of rural employees.
Option B is untrue since a stratified sample will cost more to implement than a straightforward random sample and won't always result in financial savings.
Option C does not applicable because it is just a supposition without any supporting data.
Choice D is False, since a stratified sample in this situation produces results that are more typical of the store's employees from both locations than a random sample.
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Evaluate: -6 × (-4)
= Enter your next step here
() TO
Answer:
24
Step-by-step explanation:
-6*(-4)
The negative signs cancel:
6*4
24
H=4(x+3y)+2 make x the subject
When the formula is changed to x, the equation is x = 1/4(H - 2) - 3y
How to change the subject of formula to x?From the question, the equation is given as
H=4(x+3y)+2
Subtract 2 from both sides of the equation
So, we have the following equation
H - 2 =4(x+3y)+2 -2
Evaluate
So, we have the following equation
H - 2 =4(x+3y)
Divide by 4
So, we have the following equation
1/4(H - 2) = x +3y
Subtract 3y from both sides
x = 1/4(H - 2) - 3y
Hence, the solution for x is x = 1/4(H - 2) - 3y
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The simplified solution for the x is given as x = [H - 2]/4 - 3y.
As mentioned in the question, for an equation H=4(x+3y)+2, we have to transform the equation in the subject of x.
The operational processes in mathematics for the functions to make the function or expression.
Here,
Simplification of the given function in a manner to the transposition of the variables from left to right,
H=4(x+3y)+2
H - 2 = 4(x+3y)
{H - 2}/4 = (x + 3y)
x = [H - 2]/4 - 3y
Thus, the simplified solution for the x is given as x = [H - 2]/4 - 3y.
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find the area of the polygon from the efigure give below
In this figure, m∠2=(6x+20)∘ and m∠8=(8x−10)∘ .
What value of x makes a∥b ?
Enter your answer in the box.
If the ∠2 = 6x+20 degrees and ∠8 = 8x-10 degrees, then the values of x is 15
The lines a and b are parallel lines
Here two parallel lines a and b are cut by a transversal t
The angles are
∠2 = 6x+20 degrees
∠8 = 8x-10 degrees
The angle 2 and angle 8 are called alternate exterior angles
When the two parallel lines are cut by a transversal, the formed alternate exterior angles are equal.
Then
6x+20 = 8x-10
Solve the equation
6x-8x = -10-20
-2x = -30
x = -30/-2
x = 15
Hence, if the ∠2 = 6x+20 degrees and ∠8 = 8x-10 degrees, then the values of x is 15.
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for this I already did the first part and I got f(x)=2.5x+1so can you help me with the second part
Please help! I’ve tried this a couple times now and still don’t understand it! Math is not my thing.
The function f(z) is graphed below. (Picture below)
a) What is f(0)?
b) What is f(3)?
c) What is f(1)?
Answer:
Step-by-step explanation:
Please help me dont know the answer
Answer:
First answer is obtuse
The second answer is scalene
Step-by-step explanation:
Obtuse is when an angle is over 90
Scalene since all the angles are different, all the side lengths are different.
How do I get n from 2n C n =70?
After evaluating the expression, the value of n is √(70/2C).
What are expressions?An expression, also known as a mathematical expression, is a finite combination of symbols that are well-formed in accordance with context-dependent rules. An expression in mathematics is made up of numbers, variables, and functions (such as addition, subtraction, multiplication or division, etc.) You can think of expressions as being similar to phrases.So, 2nCn = 70:
Now, solve for n as follows:
2nCn =702Cn² = 70n² = 70/2Cn = √(70/2C)Therefore, after evaluating the expression, the value of n is √(70/2C).
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Please help me, it is important
Examining the given figure it can be calculated that
GI = 15 unitsm< IEH = 65 degrees How to get the required angel and length of side in the given figureGiven that
EI = 2x + 1
FH = 3x + 9
m< FIG = 50 degrees
The length of diagonals of rectangles are equal and when they bisect each other the divide each other into equal halves
EI is the half of FH, therefore we have that
( 3x + 9 ) / 2 = 2x + 1
3x + 9 = 2(2x + 1)
3x + 9 = 4x + 2
9 - 2 = 4x - 3x
7 = x
GI = EI (half diagonal of rectangle are equal)
GI = 2 * 7 + 1
= 15
m< FIG = 50 degrees = m< EIH (vertical opposite angles)
m< EIH + m< IEH + m< IHE = 180
m< IEH = m< IHE = y (base angles of isosceles triangle)
m< EIH + 2y = 180
50 + 2y = 180
2y = 180 - 50
2y = 130
y = 65 degrees
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Door prizes for entrants in a young inventors competition are $100, $50, $25 and $10. In how many ways can the door prizes be awarded if there are 23 entrants?.
The total number of ways the prizes are awarded is 8855.
The prizes for entrants in a young inventors competition are $100, $50, $25, and $10.
Which are of total 4 types of prizes.
If there are 23 entrants in the competition the prizes can be awarded in the following ways by using Combinations.
Total number of ways = ²³C₄
= [tex]\frac{23!}{4! * (23 - 4)!}[/tex]
= 8855
The total number of ways the prizes are awarded is 8855.
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luke says that "three divided by 21" is the same AS "twenty one divided by three". Is Luke correct? Explain why or why not.
Answer: He is incorrect
Step-by-step explanation:
3/21 = 0.142857142857143
21/3 = 7
They are two different equations with different answers.
Answer:
He is not correct
Step-by-step explanation:
Luke is not correct because 3/21 is 0.142 while 21/3 is 7.
Pythagorean Theorem1 2 3 4 5OA 29.5 unitsOB23.4 unitsC. 24.4 unitsOD. 33.4 units
we know that the perimeter is the sum of all the sides, therefore:
[tex]\begin{gathered} P=10+9+3+\sqrt{7^2+9^2} \\ P=22+\sqrt{49+81} \\ P=22+\sqrt{130} \\ P=22+11.4=33.4 \end{gathered}[/tex]Therefore the answer is D. 33.4 units
Use the figure to find the measures of the numbered angles. The problem number 2. I’m just trying to make sure I’m doing these correctly.
Angle 2 and angle of 34° are vertical angles, then they are congruent, that is,
[tex]m\angle2=34\degree[/tex]Angle 6 and angle of 34° are corresponding angles, then they are congruent, that is,
[tex]m\angle6=34\degree[/tex]Angle 4 and angle of 34° are alternate interior angles, then they are congruent, that is,
[tex]m\angle4=34\degree[/tex]Angle 7 and angle of 34° are same-side interior angles, then they are supplementary, that is,
[tex]\begin{gathered} m\angle7+34\degree=180\degree \\ m\angle7=180\degree-34\degree \\ m\angle7=146\degree \end{gathered}[/tex]Angles 4 and 3 are same-side interior angles, then they are supplementary, that is,
[tex]\begin{gathered} m\angle4+m\angle3=180\degree \\ 34\degree+m\angle3=180\degree \\ m\angle3=180\degree-34\degree \\ m\angle3=146\degree \end{gathered}[/tex]Angles 7 and 5 are vertical angles, then they are congruent, that is,
[tex]\begin{gathered} m\angle5=m\angle7 \\ m\angle5=146\degree \end{gathered}[/tex]Angles 1 and 3 are vertical angles, then they are congruent, that is,
[tex]\begin{gathered} m\angle1=m\angle3 \\ m\angle1=146\degree \end{gathered}[/tex]a city has two water towers. one tower holds 8.4 x 103 gallons of water and the other tower holds 9.5 x 104 gallons of water. what is the combined water capacity of the two towers in scientific notation?
Total capacity the tower holds 1.034 x 10^5 gallons of water
One tower holds 8.4 x 10^3 gallons of water
Other tower holds 9.5 x 10^4 gallons of water
The combined water capacity of the two towers in scientific notation is,
Total capacity the tower holds = 9.5 x 10^4 + 8.4 x 10^3
= 9.5 x 10^4 + 0.84 x 10^4
= 10.34 x 10^4
= 1.034 x 10^5
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(x + 4)(x + 3)How do I find the answer of this with work to break it down?
In order to break down this product, we need to apply the distributive property of the multiplication.
So we need to find the product of each term inside a binomial by each term in the other binomial.
That is, first we find x times x and x times 3, then we find 4 times x and 4 times 3, finally we add them all:
[tex]\begin{gathered} (x+4)(x+3)=x\cdot x+x\cdot3+4\cdot x+4\cdot3 \\ =x^2+3x+4x+12=x^2+7x+12 \end{gathered}[/tex]So the final expression is x2 + 7x + 12.
Select the correct answer.
What is the range of the function shown on the graph above?
A. -9 [tex]\leq[/tex] y [tex]\leq[/tex] 8
B. -7[tex]\leq[/tex] y [tex]\leq[/tex] -2
C.-8[tex]\leq[/tex] y [tex]\leq[/tex] 8
D.-2 [tex]\leq[/tex] y [tex]\leq[/tex] -7
Answer:
A
Step-by-step explanation:
The range is the y values. The y value is as low as -10 and as high as 8.
A middle school took all of its 6th grade students on a field trip to see a play at a
theater that has 1080 seats. The students filled 35% of the seats in the theater. How
many 6th graders went on the trip?
Answer:
there are 378 students
Step-by-step explanation:
you can see this as a simple proportion.
You know that the 100% of the seats are 1080 and you need to know the 35% of the seats, so you do:
[tex] \frac{1080}{100} = \frac{x}{35} [/tex]
so you do
x = 35 * 1080 ÷ 100 which gives 378
equationsWrite a system of equations to describe the situation below, solve using elimination, and fill inche blanks.lada gets paid at home for doing extra chores. Last week, she did 1 load of laundry and 8oads of dishes, and her parents paid her $26. The week before, she finished 3 loads ofaundry and 8 loads of dishes, earning a total of $30. How much does Jada earn forcompleting each type of chore?
In this problem, we are going to write and solve a system of equations based on a real world situation.
Last week, she did 1 load of laundry and 8 loads of dishes, and her parents paid her $26. The week before, she finished 3 loads of laundry and 8 loads of dishes, earning a total of $30.
To begin, we need to create variables for the unknown cost of each chore.
Let x represent laundry, and let y represent dishes.
From the first equation, we can write the equation:
[tex]x+8y=26[/tex]We can write the second equation as:
[tex]3x+8y=30[/tex]Together, we have the system:
[tex]\begin{cases}x+8y={26} \\ 3x+8y={30}\end{cases}[/tex]Multiply the first equation by -1, then add it to the second equation:
[tex]\begin{gathered} \begin{cases}-1(x+8y={26)} \\ 3x+8y={30}\end{cases} \\ \\ \begin{cases}-x-8y={-26} \\ 3x+8y={30}\end{cases} \\ \\ (-x+3x)+(-8y+8y)=-26+30 \\ 2x=4 \end{gathered}[/tex]We can divide the remaining equation by 2 on both sides:
[tex]\begin{gathered} \frac{2x}{2}=\frac{4}{2} \\ \\ x=2 \end{gathered}[/tex]Lada made $2 per load of laundry.
We can use the value of x in the first equation to find the value of y. Substitute x = 2:
[tex]2+8y=26[/tex]Subtract 2 from both sides:
[tex]8y=24[/tex]Divide by 8 on both sides:
[tex]y=3[/tex]Lada made $3 per load of dishes.
Drevae WashingtonExpected ValueMar 08, 1:24:47 PM?Scarlett volunteers on the weekend at the Central Library. As a school project, shedecides to record how many people visit the library, and where they go. On Saturday,429 people went to The Youth Wing, 382 people went to Social Issues, and 424 wentto Fiction and Literature.On Sunday, the library had 1100 total visitors. Based on what Scarlett had recordedon Saturday, about how many people should be expected to go to The Youth Wing?Round your answer to the nearest whole number.Answer:Submit Answerattempt 1 out of 2RIDeltaMath - Googl.W April Spirit WeekResume from vae..
SOLUTION
Given the question in the question tab, the following are the solution steps to answer the question.
STEP 1: Get the total number of visitors on saturday
[tex]382+429+424=1235[/tex]STEP 2: Get the proportion/probability of the people who went to the Youth Wing on Saturday
[tex]\begin{gathered} \Rightarrow\frac{\text{number of Youth Wing}}{\text{Total number of visitors}} \\ \Rightarrow\frac{429}{1235}=0.347368421 \end{gathered}[/tex]STEP 3: Get the expected number of people to visit the Youth Wing on Sunday
[tex]\begin{gathered} \text{Expected value}=\text{proportion}\times total\text{ number of visitors on Sunday} \\ \text{Expected Value=}0.347368421\times1100=382.1052632 \\ \text{Expected Value of people from Youth Wing }\approx382 \end{gathered}[/tex]Hence, the expected number of people to visit the Youth Wing on Sunday is approximately 382 people
8. Find the area of the kite.
Answer:
A=16, the formula to find the area of a kite is A=pq/2
Step-by-step explanation:
A=pq/2 = 4×8/2=16