Answer:
Step-by-step explanation:
A root is a value for which a given function equals zero. When that function is plotted on a graph, the roots are points where the function crosses the x-axis. For a function, f(x) , the roots are the values of x for which f(x)=0 f ( x ) = 0 .
Isosceles trapezoid W X Y Z is shown. Sides X Y and W Z are parallel. The length of X Y is 3 a minus 4 and the length of W Z is 3 a. Sides W X and Y Z are congruent. The length of W X is 2 a minus 2 and the length of Y Z is a + 1.
What is the length of XY?
3 units
4 units
5 units
6 units
Answer: 5 units
Step-by-step explanation:
PLEASE HELP!!!!!!!!!!
Answer:
9
Step-by-step explanation:
9x9=81
La mamá del profesor Ernesto tiene una bolsa con 3/4 kilogramos de arroz y guiso 2/3 de su contenido Que fracción de un kilogramo utilizo para cocinar
Answer: ella usó (1/2) kg de arroz para cocinar.
Step-by-step explanation:
La madre de Ernesto tenía una bolsa con 3/4 kg de arroz.
Sabemos que uso 2/3 de esa cantidad para hacer un guiso.
Entonces ella usó 2/3 de 3/4 kilogramos de arroz.
Entonces ella usó:
(2/3)*(3/4) kg de arroz.
Recordemos que esto se puede escribir como el producto entre los numeradores dividido por el producto de los denominadores:
(2*3)/(3*4) kg de arroz.
(6/12) kg de arroz
(1/2) kg de arroz.
Esto significa que ella usó (1/2) kg de arroz para cocinar.
Which is equivalent to the ratio 4:5?
A. 95: 100
B. 80: 100
C. 60: 100
D. 40: 100
E. 20 : 100
Answer:
B) 80:100
Step-by-step explanation:
80:100
/20 /20
4:5
B is the correct one
Eighteen technicians in a cell phone repair shop are randomly selected to participate in a study comparing two screen repair techniques. They are randomly assigned one of the two techniques. The manager trains 9 technicians on one technique and trains the other 9 technicians on the second technique. He then records the number of screen repairs each technician does in one week. Which inferential statistical test would be most appropriate for this scenario?
A one-sample z-test
A paired t-test
A chi-square goodness-of-fit test
A one-sample t-test
A two-sample t-test
Answer:
a two sample t test
Step-by-step explanation:
The inferential statistical test that would be most appropriate for this scenario is a two-sample t-test option fifth is correct.
What is a t-test?A t-test is a hypothesis-testing technique for analyzing the means of one or two populations. A t-test can be used to see if a single group differs from a known value, if two groups differ from each other (an independent two-sample t-test), or if paired measurements show a significant difference.
Based on the information provided, there are two techniques, each with nine technicians. The sample sizes are tiny, in other words. Furthermore, the two samples are unrelated to one another. As a result, a two-sample t-test is appropriate.
Thus, the inferential statistical test that would be most appropriate for this scenario is a two-sample t-test option fifth is correct.
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A school gymnasium is being remodeled. The basketball court will be similar to an NCAA basketball court, which has a length of 94 feet and a width of 50 feet. The school plans to make the width of the new court 45 feet. Find the perimeters of an NCAA court and of the new court in the school.
Answer:
Perimeter of NCAA court=288 feet
Perimeter of new court=259.2 feet
Step-by-step explanation:
We are given that
Length of NCAA court, l=94 feet
Width of NCAA court, b=50 feet
Width of new court, b'=45 feet
We have to find the perimeter of an NCAA court and new court in the school.
Perimeter of NCAA court=[tex]2(l+b)[/tex]
Perimeter of NCAA court=[tex]2(94+50)[/tex]feet
Perimeter of NCAA court=288 feet
When two rectangles are similar then the ration of their corresponding sides are equal.
Using the property
[tex]\frac{Perimeter\;of\;NCAA\;court}{Perimeter\;of\;new\;court}=\frac{Width\;of\;NCAA\;court}{Width\;of\;new\;court}[/tex]
[tex]\frac{288}{Perimeter\;of\;new\;court}=\frac{50}{45}[/tex]
Perimeter of new court=[tex]\frac{288\times 45}{50}[/tex] feet
Perimeter of new court=259.2 feet
The perimeter of the NCAA basketball ground is 288 feet, while the school basketball ground is 259.2 feet.
Given to us,
For NCAA basketball court,
Length, [tex]\bold {L_{NB}}[/tex] = 94 feet,
Width, [tex]\bold {W_{NB}}[/tex] = 50 feet,
For School basketball court,
Width, [tex]\bold {w_{school}}[/tex] = 45 feet,
As discussed in the question, school basketball court will be similar to an NCAA basketball court. Thus, they will be in ratio,
[tex]\bold {\dfrac{L_{NB}}{W_{NB}} = \dfrac{l_{school}}{w_{school}}}[/tex]
Substituting the value,
[tex]\bold {\dfrac{94}{50} = \dfrac{l_{school}}{45}}[/tex]
[tex]\bold{ l_{school} = \dfrac{94\times 45}{50}}[/tex]
[tex]\bold{ l_{school} = 84.6 }[/tex]
We know that, perimeter of rectangular = 2(length+width),
[tex]\begin{aligned}Perimeter_{NB}&= 2(length+width)\\&= 2(94+50)\\&= 288 \end{aligned}[/tex]
[tex]\bold{\begin{aligned}Perimeter_{school}&= 2(length+width)\\&= 2(84.6+45)\\&= 259.2\end{aligned}}[/tex]
Hence, the perimeter of the NCAA basketball ground is 288 feet, while the school basketball ground is 259.2 feet.
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Find the value of x. Round to the nearest tenth.
Answer:
rounded to nearest 10th is 30
Step-by-step explanation:
Checkpoint
Which ratios are equivalent to the given ratio?
9:36
Select each correct answer.
1:4
2 to 8
4/1
12 to 3
18/72
HELP PLS DONT NEED TO DO THE PROVLEMS JUST HELP
Answer:
i have NO idea dud
Step-by-step explanation:
4x+y=15
3x+5y=41
help please!
Step-by-step explanation:
x=2. y=7
4(2) + (7) =15
3(2) + 5(7) = 41
Step-by-step explanation:
4x+y=15 -------1
3x+5y=41------2
y=15–4x--------3
3 in 2
3x+5(15–4x)=41
3x+75–20x=41
3x–20x=41–75
-17x=-34
x=-34÷-17
x=2
x=2 in 1
4(2)+y=15
8+y=15
y=15–8
y=7
answer:x=2,y=7
giving out 20 points for correct answer only answer if yk. thx hagd
The following table shows the number of hours some middle school students in two cities spend texting each week:
City A 9 27 17 24 21 12 25 25 18
City B 6 20 26 15 23 25 14 14 11
Part A: Create a five-number summary and calculate the interquartile range for the two sets of data.
Part B: Are the box plots symmetric? Justify your answer.
Answer:
the five number summary for city a is the following:
min- 9
q1- 17
median- 21
q3- 25
max- 27
in the diagram, what is the measure of
Answer:
your question is incomplete
Step-by-step explanation:
ehem
Answer: I need a question to answer
Step-by-step explanation:
Which property is used below?
If 4x + 18 = 42, then 4x + 18 – 6 = 42 – 6.
Answer:
Additive property.
Step-by-step explanation:
If a man were to sell his T.V set for 7200, he would have lost 25%. For what price must he sell it to
Answer:
Step-by-step explanation
S.P of a t.v = rs 7200
Loss % = 25%
Therefore, C.P = S.P (100/100-loss)
=7200(100/100-25)
=7200 x 100/75
=9600
So,now C.P = 9600
Profit% = 25%
Therefore, S.P = C.P (100+profit/100)
=9600(100+25/100)
=9600 x 125/100
=12000
So,the price he should sell to gain 25%
=12000
Hope it helps...!!!
The school flagpole is 28 feet tall. How many yards is that?
Answer: the answer is 9.33---
how many different three digit numbers can be formed using the digits 9 3 4 7 and 6 assume the number can be used more than once?
Answer:
60
Step-by-step explanation:
Match each equation to the line of best fit that it models.
Where are the the equations?
round 7.49 to the nearest tenth
Answer:
7.5
7.49 rounded to the nearest tenth is 7.5 because there is a 9 in the hundredths place.
Date:
.
'. Due to coxid-19 pandimec, the Jacinto
Family donated 180 pos Face Shield
and the aguinaldo family also don
213 pcs of pace shield to the front
liner, If a face shield cost 8m pesos
How much
the total cost of
donation.
tone soola
Answer:
It's 3,114: )
Step-by-step explanation:
Because if you multiply the 8m to 180 it will remain to 1,440 plus additional 1,704 so it will be 3,114, the main answer
2 kilometers to 72 meters write each ratio in simplest form
Hi there!
1:36
1.Find common denominator:
[tex]2*2/72*2[/tex]
Commonest denominator: 2
2.Divide the two terms:
[tex]2*2=1/72*2=36[/tex]
3.Convert into rate form:
[tex]1,36=1:36[/tex]
This means, 2 kilometers to 72 meters simplest form is 1:36.
A road is
4/5
of a mile long. A crew needs to repave 2/5
of the road. How long is the section that needs to be repaved?
Write your answer in simplest form.
Answer: 20/10
Step-by-step explanation:
Take (calculate) 4/5 of 2/5 mile:
4x5= 20
---- * ---- = 20/10
2x5= 10
The section that needs to be repaved is 1/2 of a mile.
What is a fraction?Fractions represent the parts of a whole or collection of objects.
A fraction has two parts. The number on the top of the line is called the numerator and the number on the top of the line is called the denominator.
Now it is given that,
Length of road = 4/5 of a mile
Road needs to repave = 2/5 of the road
Thus, road needs to repave = 2/5 of 4/5
⇒ road needs to repave = (2*4)/(5*5)
⇒ road needs to repave = 10/20
or, road needs to repave = 1/2
Thus, the section that needs to be repaved is 1/2 of a mile.
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I need help I don't understand this
Answer:
Proportional
Step-by-step explanation:
The Bags of Screws (input) is multiplied by 5 to get the Price (output) each time, so the situation is proportional. If one or two numbers were not multiplied by 5 to get the Price (output), the situation would not be proportional.
Hope it helps!
Solve the inequality.
|5 - 2x|> 14
Answer:
x < −9/2
or
x > 19/2
I hope this helps <333
Find the value of x with the equation
Answer:
x=4
Step-by-step explanation:
SU=TR
x+1=2x-3
-x. -x
1=x-3
+3. +3
x=4
Use the functionſ to answer the question. f () = 3x2 - 7x - 32 What is the value of f (-4)? A. -52 B. -12 O c. 44 D. 140 +
[tex]f{x} = 3x2 - 7 x - 32 = [/tex]
Step-by-step explanation:
step 1. please write it f(x) = 3x^2 - 7x -32
step 2. f(-4) = 3(-4)^2 -7(-4) - 32
step 3. f(-4) = 48 + 28 - 32
step 4. f(-4) = 44.
Find the distance between the points.
(7,9) and (-1,9)
Answer:
The distance is 8 between (7,9) and (-1,9)
Step-by-step explanation:
For:
(X1, Y1) = (7, 9)
(X2, Y2) = (-1, 9)
d=(−1−7)2+(9−9)2√
d=(−8)2+(0)2√
d=64+0√
d=6–√4
d=8
Given the function h(x) = x^2+2x -2 determine the average rate of change of the
function over the interval —7≤x≤2
Answer: Good luck my friend I have no idea
Step-by-step explanation:
-4Runner -2r+5 what is the answer
ratios into their simplest form a)35:56
Answer:
Reduced fraction: 58. Therefore, 35/56 simplified to lowest terms is 5/8
Answer:
Step-by-step explanation:
Find the GCD (or HCF) of numerator and denominator. GCD of 35 and 56 is 7.
35 ÷ 756 ÷ 7.
Reduced fraction: 58. Therefore, 35/56 simplified to lowest terms is 5/8.
Pls help ASAP if you can
Does coordinate a or coordinate b represent a greater number?
(0,4)
(6, b)
(0,0)
(a,0)
Answer:
A is correct.
Step-by-step explanation:
Answer:
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Step-by-step explanation:
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