Answer:
all real numbers
Step-by-step explanation:
7(x + 2) - 10 = 7x + 4
7x + 14 - 10 = 7x + 4
7x + 4 = 7x + 4
4 = 4
the answer is all real numbers because 4 will always equal 4
Find the value of x in the equation below
13=x-18
Please help
Answer: x = 31
Step-by-step explanation: 13+18=31, so 31-18=13.
Answer:
x = 31
Step-by-step explanation:
-Get x alone
13 = x - 18
-add 18 to each side
x=31
David can run 1503 yards in 9 minutes .at this rate ,how many yards can he run in 13 minutes
Anyone know how to do this??
Answer:
y = (-1/6)x - 1
Step-by-step explanation:
y = 6x - 2
find the reciprocal of 6 which is -1/6 then find the y-intercept (b)
y = (-1/6)x + b
-2 = (-1/6)(6) + b
-2 = -1 + b
+1 +1
-1 = b
Answer:
should be nigitive
Step-by-step explanation:
Y=mx+b
M- represents the slope and its constant
B- represents the y-intersect
Samantha wants to buy a bicycle for $129.99. If the sales tax is 6%, what is the total amount she will pay for the bicycle?
Answer:
About $137.79
Step-by-step explanation:
Hope this helps!
Some equations have the form y=kxy=kx, where kk is a number.
Which equation CANNOT be written in the form y=kxy=kx?
Answer:
[tex]x = 4y[/tex]
Step-by-step explanation:
Given
[tex]y = kx[/tex]
See attachment for options.
Required
Determine which of the options answers the question
Analyzing the option one after the other:
[tex]\frac{x}{y} = 4[/tex]
Multiply through by y
[tex]y * \frac{x}{y} = 4 * y[/tex]
[tex]x = 4y[/tex]
Divide through by 4
[tex]\frac{x}{4} = \frac{4y}{4}[/tex]
[tex]\frac{x}{4} = y[/tex]
This can be rewritten as
[tex]y = \frac{x}{4}[/tex]
[tex]y = \frac{1}{4} x[/tex]
By comparison with [tex]y = kx[/tex]
we have:
[tex]y = y[/tex]
[tex]x = x[/tex]
[tex]k = \frac{1}{4}[/tex]
Hence: this answers the question.
-5x+9=-3x+1 i dont understand it someone please help
Answer:
x=4
Step-by-step explanation: take (possative)3x and add it to -5x. -2x+9=1. subtract 9 from 1. -2x=-8. devide bolth sides by -2. a negative devided by a negative makes a possative soit equallls x=4
A baseball card collector has 225 plastic pages filled with a total of 3,375 cards.
Which rate represents the relationship between the cards and the number of pages?
15 cards per page
25 cards per page
15 pages per card
33 pages per card
Answer:
15 cards per page
Step-by-step explanation:
Jacob split the cost of snacks, which was $12.24, with two friends. Before they ate, another friend joined them and paid Jacob for his fourth of the cost.
How much does Jacob need to refund each of the other two friends so that everyone pays the same amount?
Answer:
3.06
Step-by-step explanation:
12.24/4
Answer:
4.08
Step-by-step explanation:
X squared plus X equals six solve for X as if it’s a positive number
What is the area of the triangle?
Answer:
4
Step-by-step explanation:
The formula of the area of a triangle is 1/2 times base times height
1/2 .4.2 equals 4
1. Jack wants to buy a pair of name-brand headphones on a popular auction
website. He enters the brand, make, and model number and searches the site
for what is available. He notices that some headphones are being offered as
"buy now" with a fixed price and others are up for bid in auctions. Below is a
list of all prices at the time he did his search.
$75 $95 $180 $136 $89 $75 $110 $180 $100 $136 $180
$95 $180 $136 $75
$100 $110 $180 $180 $136 $75 $90
a. Construct a frequency distribution for the data.
b. Use the frequency distribution to determine the mean. Round your answer
to the nearest cent.
c. Use the frequency distribution to determine the median and the mode.
Answer:
Mean = 125.136
Median = 110
Mode = 180
Step-by-step explanation:
Given the data:
75 95 180 136 89 75 110 180 100 136 180 95 180 136 75 100 110 180 180 136 75 90
Frequency distribution:
Value(X) ___freq (F) ____cumm frequency
85 _________ 4 _______ 4
89 _________ 1 _______5
90 __________1 _______6
95 __________2 ______ 8
100 _________ 2 ______10
110 __________2______ 12
136 __________4 _____ 16
180 __________6______22
2) Using the frequency distribution :
Mean = Σfx / Σf
[(85*4) + (89*1) + (90*1) + (95*2) + (100*2) + (110*2) + (136*4) + (180*6)]/ 10
= 2753 / 22
= $125.136
Median of grouped data :
Frequency + 1 / 2 = 23/2 = 11.5 th term
The median value = $110
Mode of the data:
Most frequently occurring = 180 (frequency of 6)
The mean of the frequency distribution is $125.136, the median of the frequency distribution is $110, and the mode of the frequency distribution is $180.
Given :
Jack wants to buy a pair of name-brand headphones on a popular auction website.He enters the brand, make, and model number and searches the site for what is available. He notices that some headphones are being offered as "buy now" with a fixed price and others are up for bid in auctions.a) The frequency distribution is given below:
Prices Frequency Cumulative Frequency
85 4 4
89 1 5
90 1 6
95 2 8
100 2 10
110 2 12
136 4 16
180 6 22
b) The mean is calculated as:
[tex]\rm Mean = \dfrac{85\times4 + 89\times1 +90\times1 +95\times 2+100\times2 +110\times2 +136\times4 +180\times6 }{10}[/tex]
Simplify the above expression.
Mean = $125.136
c) The median of the frequency distribution is calculated as:
[tex]\rm Term= Frequency + \dfrac{1}{2}=11.5[/tex]
So, the median is $110.
The mode of the frequency distribution is $180.
For more information, refer to the link given below:
https://brainly.com/question/4393505
One-third of a number is 7. Find the number.
Answer:
21
Step-by-step explanation:
21/3 = 7
Which fractions are equivalent to
-? Check all that apply.
12
Answer:
2/3
24/36
32/48
are all equivalent to 8/12
Answer:
32/48
Step-by-step explanation:
32 divided by 4 is 8
48 divided by 4 is 12
Mrs. Flossi is hosting a trivia contest for 40 students and 24 staff members. To be fair,
Mrs. Flossi wants there to be the same number of students and the same number of
staff members on each team.
What is the greatest number of teams Mrs. Flossi can make?
1. 3 teams
2. 4 teams
3. 5 teams
4.8 teams
(I WILL GIVE BRAINLIEST)
Answer:
8 teams is answer
Step-by-step explanation:
whats 105 to the power of 20 pls help its big question
Answer:
lol is this possible i tried doing it but couldnt haha i googled it and well it said 2.6532977e+40
Step-by-step explanation:
Answer:
2.65329771×10 to the power of 40
Step-by-step explanation:
Use scientific notation to get the simplest answer
On a certain planet, Continent X has an area of 6.23*10^6 square miles and Continent Y has an area of 63,600,000 square miles. How many times larger is Continent Y than Continent X?
Answer:
Step-by-step explanation:
Continent X =6.23*10^6
Continent Y= 63,600,000
rounded = 60,000,000
Scientific notation = 6*10^7
Now round continent X= 6.23 or 6
Continent X= 6*10^6
6*10^7/ 6*10^6 = 1*10^(7-6)
= 1*10^1
= 1*10
= 10
So your answer would be 10.
I hope that helps
Answer:
Step-by-step explanation:Continent X =6.23*10^6
Continent Y= 63,600,000
rounded = 60,000,000
Scientific notation = 6*10^7
Now round continent X= 6.23 or 6
Continent X= 6*10^6
6*10^7/ 6*10^6 = 1*10^(7-6)
= 1*10^1
= 1*10
= 10
So, your answer would be 10 I would have done it this way too not trying to copy(:
PLEASE HELP Will give brainliest! Write the equation in y=mx+b form for the line on the graph. PLEASE
Answer:
y=-1.9x-1
Step-by-step explanation:
a taxicab company charges $4.25 plus $.85 per mile. Mary Paid a fare of $12.50. Write and solve an equation to find the number of miles she traveled and describe the solution.
Pls help me!
ASAP!
Please answer the top half ASAP I need it in 2h please
Answer:
4/76/1112/1719/3010/177/1511/288/217/323/493/71/24/75/223/73/41/31/103/81/23/84/765/1688/2140/634/31/29/79/521/44The Weibull distribution is widely used in statistical problems relating to aging of solid insulating materials subjected to aging and stress. Use this distribution as a model for time (in hours) to failure of solid insulating specimens subjected to AC voltage. The values of the parameters depend on the voltage and temperature; suppose α = 2.6 and β = 220. (a) What is the probability that a specimen's lifetime is at most 250? Less than 250? More than 300? (Round your answers to four decimal places.) at most 250 less than 250 more than 300 (b) What is the probability that a specimen's lifetime is between 100 and 250? (Round your answer to four decimal places.) (c) What value is such that exactly 50% of all specimens
Answer:
a
P(X \le 250 ) = 0.7564 [/tex] , [tex]P(X < 250 ) = 0.7564 [/tex] ,
[tex]P(X < 300 ) = 0.09922 [/tex]
b
[tex]P(100 < X < 250 ) =0.644 [/tex]
c
[tex] x = 192.1 [/tex]
Step-by-step explanation:
From the question we are told that
The value for [tex]\alpha = 2.6[/tex]
The value for [tex]\beta = 220[/tex]
Generally the Weibull distribution function is mathematically represented as
[tex]F( x , \alpha , \beta ) = \left \{ 0 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ x < 0} \atop { 1- e^{-(\frac{x}{\beta } )^{\alpha } }}\ \ \ \ \ \ x \ge 0} \right[/tex]
Generally the probability that a specimen's lifetime is at most 250 is mathematically represented as
[tex]P(X \le 250 ) = F(250, 2.7 , 220 )[/tex]
[tex]P(X \le 250 )=1 - e^{- (\frac{250}{220} )^{2.7}}[/tex]
[tex]P(X \le 250 ) = 1 - 0.2436[/tex]
[tex]P(X \le 250 ) = 0.7564 [/tex]
Generally the probability that a specimen's lifetime is less than 250
[tex]P(X < 250 ) = F(250, 2.7 , 220 )[/tex]
[texP(X < 250 ) =1 - e^{- (\frac{250}{220} )^{2.7}}[/tex]
[tex]P(X < 250 ) = 1 - 0.2436[/tex]
[tex]P(X < 250 ) = 0.7564 [/tex]
Generally the probability that a specimen's lifetime is more than 300
[tex]P(X > 300 ) = 1- p(X \le 300 )[/tex]
[tex]P(X > 300 ) = 1- F(300, 2.7 , 220 )[/tex]
[texP(X < 300) =1- [1 - e^{- (\frac{300}{220} )^{2.7}}][/tex]
[tex]P(X < 300 ) = 0.09922 [/tex]
Generally the probability that a specimen's lifetime is between 100 and 250 is
[tex]P(100 < X < 250 ) = P(X < 250) - P(X < 100)[/tex]
=> [tex]P(100 < X < 250 ) =F(250 , 2.7 , 220 ) - F(100 , 2.7 , 220 ) [/tex]
=> [tex]P(100 < X < 250 ) =(1 - e^{-(\frac{250}{220})^{2.7}}) - (1 - e^{-(\frac{100}{220})^{2.7}}) [/tex]
=> [tex]P(100 < X < 250 ) = (1 - 0.244 ) - (1- 0.888)[/tex]
=> [tex]P(100 < X < 250 ) =0.644 [/tex]
Generally the value such that exactly 50% of all specimens
[tex]P(X > x) = 1-P(X < x) = 0.50[/tex]
=> [tex]P(X > x) = 1- (1 - e^{- (\frac{x}{220}) ^{2.7}}) = 0.50[/tex]
=> [tex] P(X> x ) = e^(- \frac{x}{20})^{2.7} = 0.50 [/tex]
=> [tex] P(X> x ) = (- \frac{x}{20})^{2.7} = ln0.50 [/tex]
=> [tex] P(X> x ) = \frac{x}{20} =[ -ln0.50 ] ^{frac{1}{2.7}}[/tex]
=> [tex] x = 220[ -ln0.50 ] ^{frac{1}{2.7}}[/tex]
=> [tex] x = 192.1 [/tex]
Order 2/3, 2/9, 5/6, 11/18 from least to greatest.
Answer:
2/9, 2/3, 8/11, 5/6.
PLSSS HELPPP I WILL GIVE BRAINLIESTTTT!!!!!!!
Answer: Domain is [1,3], Range is [304,391]
Step-by-step explanation:
Domain is just the x values the table has from lowest to highest. Period is the x values so domain is [1,3]
Range is the y values from lowest to highest the lowest y is 304 and highest is 391, so you use those two numbers to get [304,391]
in Haritha haram,108,84 and 60 saplings of mango guava and sapota are supplied .find the minimum number of rows in which they can be planted if in each row same numbers of saplings of the same type are to be planted
Answer: 21
Step-by-step explanation:
Given: Number of mango guava and sapota are supplied 108,84 and 60 respectively.
Since, 108 = 2 x 2 x 3 x 3 x 3
84 = 2 x 2 x 3 x 7
60 = 2 x 2 x 3 x 5
HCF(108,84,60) = 2 x 2 x 3 [HCF=Highest common factors]
= 12
Greatest number of plants in each row = 12
Number of rows for mango = [tex]\dfrac{108}{12}=9[/tex]
Number of rows for guava = [tex]\dfrac{84}{12}=7[/tex]
Number of rows for sapota = [tex]\dfrac{60}{12}=5[/tex]
Total rows = 9+7+5= 21
Hence, the minimum number of rows in which they can be planted if in each row same numbers of saplings of the same type are to be planted = 21
On June 19, NoteQuest Inc. instituted a 3-for-2 split. At that time Keisha owned 205 shares of that stock. The price per share was
$33.99. After the split, Keisha received a check for a fractional part of a share. What was the amount of that check?
Answer:
$11.33
Step-by-step explanation:
Keisha will own 307 shares after the split. and the amount of check is 11 dollar.
Given that, NoteQuest Inc. instituted a 3-for-2 split. At that time Keisha owned 205 shares of that stock. The price per share was
$33.99.
What is the ratio?The ratio is defined as the comparison of two quantities of the same units that indicates how much of one quantity is present in the other quantity.
Here, 3+ 2 = 5
Now, let x be the number of shares post split
Then;
3/2 = x/205
x = 3/2 (205)
x = 615/2 = 307.5
Therefore, Keisha will own 307 shares after the split.
Learn more about multiplications;
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How do you workout the fraction 3/4 + 1/8
Answer:
The LCM for 4 and 8 is 8. Add both numerator and rewrite it in a single form. By using LCM method, 7/8 is the equivalent fraction by adding 3/4 and 1/8.
Hope This Helps!!! Have a great day!
<3<3
Answer:
[tex]\frac{7}{8}[/tex] or [tex]\mathrm{Decimal:\ }\:0.875[/tex]
Step-by-step explanation:
[tex]\frac{3}{4}+\frac{1}{8}[/tex]
lcm of 4 and 8 is 8
adjust the fraction base on the lcm
[tex]=\frac{6}{8}+\frac{1}{8}[/tex]
[tex]\mathrm{Apply\:the\:fraction\:rule}:[/tex][tex]\frac{a}{c}+\frac{b}{c}=\frac{a+b}{c}[/tex]
[tex]\mathrm{Add\:the\:numbers:}\:6+1=7[/tex]
[tex]=\frac{7}{8}[/tex]
Point M is on line segment overline LN . Given MN = 3x , LN = 4x + 9 , and LM = 2x + 7 determine the numerical length of LM .
Answer: 11
Step-by-step explanation:just trust me
The numerical length of LM will be 11.
It is given that point M is on line segment overline LN . Also , MN = 3x , LN = 4x + 9 , and LM = 2x + 7.
We have to determine that what will be the numerical length of LM ?
What will be the value of x in equation ; 3x + 2 = 8 ?
The value of x will be 2.
From the question we can get that ,
MN + LM = LN
2x + 7 + 3x = 4x + 9
5x + 7 = 4x + 9
x = 2
Now , we can use the value of x to find out length of LM ;
∵ LM = 2x + 7
⇒ LM = 2 × 2 + 7
⇒ LM = 11.
Thus , the numerical length of LM will be 11.
To learn more about linear equations click here ;
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is 0.33 rational or irrational
Answer: rational
Step-by-step explanation:
0.33\overline{3} is a rational number because it is the result we get when we divide 1 by 3, or equivalently, because it is a solution to 1=3x.
Evaluate f(x)+g(x)
f(x)=3x+4 g(x)=6x+1
Answer:
4
Step-by-step explanation:
I took it on the test its 4
HELP PLEASE WILL GIVE BRAINLIEST!
Eve knits scarves for her online store. This week she has already knitted 9 scarves. There are 2 days left in the work week. She set a goal for herself to knit at least 17 scarves and at the most 19 scarves this week. Eve wants to know how many scarves she should knit each day to meet her goal.
Which inequality represents the given situation?
A.
17 ≤ 2x - 9 ≤ 19
B.
17 ≥ 2x + 9 ≥ 19
C.
17 ≤ 2x - 9 ≥ 19
D.
17 ≤ 2x + 9 ≤ 19
Determine if the sequence is arithmetic or geometric, and find the common difference or ratio.
x 1 2 3 4
f(x) 3 9 27 81
Arithmetic, common difference = 3
Arithmetic, common difference = 6
Geometric, common ratio = 3
Geometric, common ratio = 6
Answer:
C. Geometric, common ratio = 3
Step-by-step explanation:
Got it right
Answer:
C
Step-by-step explanation:
