Answers
Answer:
Step-by-step explanation:
PQ=RS
x-1=3x-7
-2x=-6
x=3
So the length of PS is
x-1+x+3x-7
5x-8, since x=3
5(3)-8
15-8
PS=7
Related Questions
If the graph of a line goes from the upper left corner of the graph to the lower right corner what can you say about its slope ?
Answers
Answer: You can say that the slope is negative since the graph is decreasing.
Step-by-step explanation:
−7=y/7
y=
pls need help bad
Answers
Answer:
-49
Step-by-step explanation:
-7 = y/7; Y must be separate from any actual values, so we must multiply by 7 to get Y by itself.
-49 = y
Which set of ordered pairs represents a function?
O{(-1,-6), (-1, -2), (5, -1), (7,-2)}
O {(5,-9), (-2, -7), (5,4), (3,7)}
O {(4,-4), (-4,-4), (-7, -2), (-6,6)}
{(-4, 7), (-4, - 7), (-3,6), (-6, -6)}
Answers
Answer:
Third 1
Step-by-step explanation:
A function can not have repeating x-values, but CAN have repeating Y-VALUES.
(x,y)
Example : (-4,6) & (-4,2) - There is a repeating x-value, -4.
The owner of a tire company wants to determine how long a new type of tire tread will last by measuring the length of time, in days, it takes for the tire tread to reach 2 mm. Let μ = the true mean number of days it takes for the tire tread to wear to 2 mm. Which of the following sample sizes will have the least variability in the sampling distribution of the sample mean?
25
35
45
55
Answers
Answer:
35
Step-by-step explanation:
The sample size should be as large as, 55 is the largest value option fifth 55 have the least variability in the sampling distribution of the sample mean.
What are population and sample?It is defined as the group of data having the same entity which is related to some problems. The sample is a subset of the population, it is a part of the population.
We know in sampling distribution:
variance ∝ 1/√n
Because,
[tex]\rm \sigma_\bar{x} \ =\ \sigma_{\sqrt{n}}[/tex]
From the above relation, as the sample size is large, the variability is less.
For least variability,
The sample size must be large.
Thus, the sample size should be as large as, 55 is the largest value option fifth 55 have the least variability in the sampling distribution of the sample mean.
Learn more about the population and sample here:
brainly.com/question/9295991
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Assignment is past due to
00:00
Use substitution. What is the solution to the system of equations? Use the drop-down menus to explain your answer.
y= { x + 2
2y = x + 4
The system of equations has infinitely many solutions
The two equations represent Choose
Choose
intersecting lines
the same line
parallel lines
Rach
Next
Answers
Answer:
The solution to the system of equation is (0, 2). The equation has only one solution.
Step-by-step explanation:
Given the system of equations
y= x + 2 .... 1
2y = x + 4 ... 2
Substitute equation 1 into 2;
From 2; 2y = x+4
2(x+2) = x+4
2x+4 = x+4
2x - x = 4-4
x = 0
Substitute x = 0 into 1;
From 1; y = x+2
y = 0+2
y = 2
Hence the solution to the system of equation is (0, 2). The equation has only one solution.
Answer:
The system of equations has
infinitely many solutions
The two equations represent
the same line
Step-by-step explanation:
Help please! Could you explain it too?
Answers
Answer:
a) not proportional
b) proportional; k = [tex]-\frac{3}{5}[/tex]
Step-by-step explanation:
a) for any proportional equation, the line must pass through the origin. The equation in a) is y = 4x + 1, and the '+1' is the y-intercept. This means that the line does not pass through the origin, so x and y cannot increase by the same amount (i.e. they are not proportional).
Another way to determine this is is to use the y = kx base. If you have an equation that fits that it's likely proportional.
Here, if the equation was only y = 4x then it'd be proportional because u can see that k = 4. This is not the equation though, and the 4x + 1 doesn't fit to the y = kx formula so it can't be proportional.
b) straight away you can see that there's no 'c' term (y = mx + c) which means the y-intercept is 0, so the line passes through the origin. While this does not immediately mean the line is proportional, you can make sure that it is by checking it fits with the y = kx equation.
y = -(3/5)x fits with y = kx, with k being -3/5
What is the probability of spinning a number greater than 5 on a spinner numbered 1-8 and tossing a tail on a coin
Answers
Answer:
3/16
Step-by-step explanation:
P(6,7,8 and 'T') = 3/8 x 1/2 = 3/16
Answer:
12/64
Step-by-step explanation:
We have numbers 1-8 = /8
We have the numbers 6, 7, 8 on the spinner = 3/8
We have the event it doesn't get over 8 too = 8/8-3/8 = 5/8
To use if the question has two events for spinner.
We toss a coin = H or T = 1/2
We convert a 3/8 and 1/2 to same HCF = 4/8 = ( 2x 4 = 8)
3/8 x 4/8 = 12/64
use the rule to write the first five terms of the pattern: Rule: add 8, subtract 4 First term: 13
Answers
Answer:
17
Step-by-step explanation:
13 + 8 - 4
Answer:
{13, 17, 21, 25, 29}
Step-by-step explanation:
Add 8 and subtract 4 is equivalent to Add 4.
If the first term is 13, the next is 17;
the second term is 21; and
the third term is 25.
Combine like terms to simplify the expression: ill mark brainliest
7 − 3x + 3 + 8x = ______
8 + 5x
10x
10 + 5x
4 + 11x
8 − 5x pls fast ill give brainlyest
Answers
Students are running in a relay race. Each team will run a total of 3 miles. Each member of a team will run 1/8 of a mile. How many students will a team need to complete the race?
Answers
There needs to be 24 students on a team.
The length of a rectangle is (3 + √7)m and its width is (1 + 2√7)n. What is the
area of the rectangle?
Answers
Answer:
[tex]A=(17+7\sqrt7)\ m^2[/tex]
Step-by-step explanation:
Given that,
The length of the rectangle, [tex]l=(3+\sqrt7)\ m[/tex]
The width of the rectangle, [tex]b=(1+2\sqrt{7} )\ m[/tex]
We need to find the area of the rectangle. We know that the area of the rectangle is given by :
[tex]A=l\times b[/tex]
Put all the values in the above formula.
[tex]A=(3+\sqrt7)\times (1+2\sqrt7)\\\\=3+3\times 2\sqrt7 +\sqrt7+2(\sqrt7)^2\\\\=3+6\sqrt7+\sqrt7+14\\\\=(17+7\sqrt7)\ m^2[/tex]
So, the area of the rectangle is [tex](17+7\sqrt7)\ m^2[/tex].
Carl wants to estimate the number of students in 5th grade who like to play basketball. He needs to create a random sample of students. How should Carl collect his sample? Carl should ask 30 students who are playing football. Carl should ask 30 students who are playing basketball. Carl should ask 30 students who go to the same school. Carl should ask 30 5th–grade students.
Answers
Answer:
ask 30 5th grade students
Step-by-step explanation:
if you only ask a certain group then you wont get a accurate answer
Select the correct answer.
For which function is f(x) equal to f-1(x)?
A. F(x)=x+6/x-6\
B. F(x)= x+2/x-2
C. f(x) = x+1/x-1
D. f(x) = x+5/x-5
Answers
Answer: D
Step-by-step explanation: They are greater than the lengths of the sides of the base.
Pamela is 5 years younger than Jiri. The sum of their ages is 81. What is Jiri's age?
Answers
Pamela is 5 years younger mean
Mean Jiri is old 5 years, take number of Jiri age minus Pamela age.
-> J-5=P
The sum mean plus
P+J=81
Use substitution for the equation 1 to find the answer.
(J-5) +J=81
2J-5=81
2J=86
J=43
Answer: Jiri is 43 years old
Step-by-step explanation:
Let x be the age of Pamela, and (x+5) be the age of Jri
Expression
x+(x+5)=81
Expand paranthesis
x+x+5=81
Combine like terms
2x+5=81
Subtract 5 on both sides
2x+5-5=81-5
2x=76
Divide 2 on both sides
2x/2=76/2
x=38
Since we've set Jiri's age as (x+5), we need to substitute the value of x
x+5=38+5=43
Hope this helps!! :)
Please let me know if you have any questions
Two sections took the same vocabulary qui. Use the 5-number summary 20,30 35 45 80) to construct a boxplot for Section and use the summary 120.35.45.50.60] to construct a boxplatfor Section II. Use the same scales for both plats, of course. Based on the two boxplats, which of the following statements about the two sections CANNOT be ustes?
A. The median of Section il is greater than the median for Section L
B. About 75% of the scores in Section il are greater than the or equal to about 50% of the scores in Section
C. There are the same number of scores in Section and Section
D. The range of scores for Section is equal to the range of scores for Section II The interquartile ranges are equal for both sections.
Answers
Answer:
C. There are the same number of scores in Section and Section
Step-by-step explanation:
The median of section I is greater than the median of section L. Median is the middle value or midpoint in the data set. In the given quiz the data set has different numbers for every section and therefore the values are not same. The data set has 75% of scores in section il which is higher than the section L.
20) Write a division number story with an answer of 1/4.
Be sure to ask a question.
Answers
Answer:
Story: Mr. Lanre bought 8 apples for $2. What is the cost of each apple.
Step-by-step explanation:
Given
[tex]Answer = \frac{1}{4}[/tex]
Required
Write a division story
A division story could be:
Mr. Lanre bought 8 apples for $2. What is the cost of each apple.
Solving the above problem, we have:
[tex]Apples = 8[/tex]
[tex]Total\ Cost =\$2[/tex]
The cost of each is:
[tex]Each = \frac{Total\ Cost}{Apples}[/tex]
[tex]Each = \frac{2}{8}[/tex]
Simplify fraction
[tex]Each = \frac{1}{4}[/tex]
Given the equation: x + 8 = 32
True or False:
The solution to this equation is 40.
Group of answer choices
True
False
Answers
Answer:
false
Step-by-step explanation:
hope this helps!
Answer:
this equation is false because
Step-by-step explanation:
the equation is x + 8 = 32
if we put x = 40 then we get 40 + 8 = 48
therefore equation is false.
Look at pic
Time in Weeks
Which panda was heavier when they were born?
Answers
Can you help, I will give you alot of points. 50 to be exact
Answers
Answer:
Part 1
190/38 = 5 minutes266/38 = 7 balloonsPart 2
266/190 = 1.4 balloons/min1.4*10 = 14 balloons / 10 minWhoever answers this will get branlyest
Answers
Answer:
10.8 ft
Step-by-step explanation:
6 goes into 18 3 times that means you multiply 3.6 by 3 and yo get 10.8 ft.
A GPA is usually an example of a
Answers
Answer:
Gpa is grade point average, it shows how well or high your scores in a subject or course on average . It’s an overall grade. It summarizes your final academic achievement or grade.
Step-by-step explanation:
Lines R and S are parallel. Find the value of x, then find the measure of 21 and 22.
m21=(74 - x)º
m22 =(85 – 2x)
Answers
Answer:
a) The value of x = 11°
b) m21 = 63°
m22= 63°
Step-by-step explanation:
Step(i):-
Given that the lines R and S are parallel
Given that M21 = (74-x)°
M22 = (85-2x)°
Equating angles
(74-x)° = (85-2x)°
74 - 85 = x -2x
-11 = -x
x = 11°
Step(ii):-
Put x = 11°
⇒ m21 = ( 74 -11) ° = 63°
⇒ m22 = (85-2(11))° = (85-22)° = 63°
Final answer:-
a) The value of x = 11°
b) m21 = 63°
m22= 63°
Evaluate m2 + 12q if m= 5 and q =-3 plz
Answers
Answer:
-11
Step-by-step explanation:
m²+12q
= (5)² + 12(-3)
= 25 -36
= -11
5² + 12(-3)
25 + (-36)
25 -36
= -11
Cscx - sinx/cscx =cos^2x
Answers
Answer:
dont remove my work :/
Step-by-step explanation:
Help quick plzzzzz Plzzzzzzzzzzzzz
Answers
12873t456473892220-209873
For every quad, there are 4 wheels. Complete the
chart to show how many wheels there would be,
following this pattern.
Answers
Find x. Round to the nearest tenth.
Answers
By knowing all sides of triangle and applying the formula of the law of the cosines we conclude that the missing angle X is approximately 117.9°.
How to find the missing angle
In this question we have a triangle with three known side lengths but all missing angles, we can determine the missing angle by using the law of cosines. If we know that x = 90 ft, y = 55 ft and and z = 50 ft, then the missing angle X is:
90² = 55² + 50² - 2 · 55 · 50 · cos X (1)
X ≈ 117.916°
To learn more on law of the cosines: https://brainly.com/question/17289163
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Write formulas for the following mathematical statement.
The difference between the selling price and cost price is profit
Answers
P = S - C
A vehicle is purchased for $19,800 and the lender requires a down payment of 20% of the purchase prize find the down payment
Answers
Answer:
the answer is 15840
Step-by-step explanation:
Pls help i will mark please dont answer if you don’t know please
Answers
Answer:
35.84
Step-by-step explanation:
32x1.12=35.84
Answer:
$35.84
Step-by-step explanation:
Hi! Ace here.
The easiest way to do this is to use benchmark fractions.
10% of 32 = 3.2
1% of 32 = .32
1% of 32 = .32
Add up all the numbers:
3.2 + .32 + .32 = 3.2 + 64 = 3.84
Since it's a mark up, we do:
32 + 3.84 = $35.84
You can also use percent proportions which would look like this. I'm not going to explain it that much because I think that's what the other person did.
[tex]\frac{x}{112} =\frac{32}{100}[/tex]
[tex]x=\frac{112*32}{100} \\\\x=\frac{3584}{100} \\\\x=35.84[/tex]
Please let me know if you have any questions.