Answer:
2
explanation:
5(2(2)-6)+20=10
5(4-6)+20=10
5(-2)+20=10
-10+20=10
10=10
Rico has 274 stickers. Gabby has 100 more stickers than Rico.
Thomas has 10 fewer stickers than Gabby.
Enter the number of stickers each child has.
Rico has blank stickers.
Gabby has blank
stickers.
Thomas has blank
stickers.
Answer:
Rico has 274 stickers. Gabby has 374 stickers. Thomas has 364 stickers.
Answer:
Rico has 274 stickers
Gabby has 374 stickers
Thomas has 364 stickers
Step-by-step explanation:
To solve you need to work step by step, write down what you know.
Rico has 274 and Gabby has 100 more. So 274 + 100 = 374
Gabby has 374
Rico has 274
Now Thomas has 10 less than Gabby and gabby has 374. 374 - 10 = 364
Thomas has 364
Hope that helps and have a great day!
Translate and solve: 1310 is what percent of 524?
Which two rational numbers does square root of 14 lie between
Answer:
3-4
Step-by-step explanation:
the square root of 14 is 3.7.....
What is the biggest even number I can make using 4,6,3,1
Answer:
7
Step-by-step explanation:
Answer:
6314
Step-by-step explanation:
You can just rearrange the numbers to get a number that can get into 2 without leaving a remainder
HOPE IT HELPED
What is the image of the point
(
8
,
4
)
(8,4) after a rotation of
9
0
∘
90
∘
counterclockwise about the origin?
By estimation, 3.9 turns into 4 and 5.3 turns into 5. The answer after estimation is 20 while the real answer is 20.67. Well u see by estimation we get an answer of two places right. So, real answer should also have two places.Place the decimal point after it.y43
Step-by-step explanation: i dont know if I'm right or not
Which graph represents the solutions to this equation?
x2 + 8x = -20
10x=-20
x=-2
Step-by-step explanation:
after you solve the above equation then represent it in graph
it lies on upper left side
Answer:
B
Step-by-step explanation: The one with the vertex of (-4,4)
The Municipal Transit Authority wants to know if, on weekdays, more passengers ride the northbound blue line train towards the city center that departs at 8:30 a.m. than the one that departs at 8:15 a.m. The following sample statistics are assembled by the Transit Authority.n x(bar) s8:15 a.m. train 30 323 passengers 418:30 a.m. train 45 356 passengers 45First, construct the 90% confidence interval for the difference in the mean number of daily travelers on the 8:15 train and the mean number of daily travelers on the 8:30 train:Next, test at the 5% level of significance whether the data provide sufficient evidence to conclude that more passengers ride the 8:30 train:State null and alternative hypotheses:Determine distribution of test statistic and compute its value:Construct the rejection region:Make your decision:State your conclusion:Compute the p-value (observed level of significance) for this test:
Answer:
The 90% confidence interval [tex]-49.8 <\mu_1 -\mu_2 < -16.16[/tex]
The null hypothesis is [tex]H_o : \mu_1 = \mu_2[/tex]
The alternative hypothesis [tex]H_a : \mu_1 < \mu_2[/tex]
The distribution test statistics is [tex]t = -3.222[/tex]
The rejection region is p-value < [tex]\alpha[/tex]
The decision rule is reject the null hypothesis
The conclusion is
There is sufficient evidence to conclude that there are more passengers riding the 8:30 train
The p-value is [tex]p-value =0.000951[/tex]
Step-by-step explanation:
From the question we are told that
The first sample size [tex]n_1 = 30[/tex]
The first sample mean is [tex]\= x _1 = 323[/tex]
The first standard deviation is [tex]s_1 = 41[/tex]
The second sample size is [tex]n_2 = 45[/tex]
The second sample mean is [tex]\=x_2 = 356[/tex]
The second standard deviation is [tex]s_2 = 45[/tex]
given that the confidence level is 90% then the level of significance is mathematically represented as
[tex]\alpha = (100 -90)\%[/tex]
[tex]\alpha = 0.10[/tex]
Generally the critical value of [tex]\frac{\alpha }{2}[/tex] obtained from the normal distribution table is
[tex]Z_{\frac{\alpha }{2} } = 1.645[/tex]
Generally the pooled variance is mathematically represented as
[tex]s^2 = \frac{(n_1 - 1)s_1^2 + (n_2 -1)s_2^2 }{n_1 + n_2 -2}[/tex]
[tex]s^2 = \frac{(30 -1)(41^2) + (45-1)45^2}{30+45 -2}[/tex]
[tex]s^2 = 1888.34[/tex]
Generally the standard error is mathematically represented as
[tex]SE = \sqrt{\frac{s^2}{n_1} + \frac{s^2}{n_2} }[/tex]
=> [tex]SE = \sqrt{\frac{1888.34}{30} + \frac{1888.34}{45} }[/tex]
=> [tex]SE = 10.24[/tex]
Generally the margin of error is mathematically evaluated as
[tex]E = Z_{\frac{\alpha }{2} } * SE[/tex]
[tex]E = 1.645* 10.24[/tex]
[tex]E = 16.85[/tex]
Generally the 90% confidence interval is mathematically represented as
[tex]\=x_1 -\=x_2 -E < \mu_1 -\mu_2 < \=x_1 -\=x_2 +E[/tex]
[tex]323 -356 -16.84 <\mu_1 -\mu_2 < 323 -356 +16.84[/tex]
[tex]-49.8 <\mu_1 -\mu_2 < -16.16[/tex]
The null hypothesis is [tex]H_o : \mu_1 = \mu_2[/tex]
The alternative hypothesis [tex]H_a : \mu_1 < \mu_2[/tex]
Generally the test statistics is mathematically represented as
[tex]t = \frac{\= x_1 - \=x_2 }{SE}[/tex]
=> [tex]t = \frac{323-356}{10.24}[/tex]
=> [tex]t = -3.222[/tex]
Generally the degree of freedom is mathematically represented as
[tex]df = n_1+n_2 -2[/tex]
[tex]df = 30 + 45 -2[/tex]
[tex]df = 73[/tex]
The p-value is obtained from the student t distribution table at degree of freedom of 73 at 0.05 level of significance
The value is [tex]p-value =0.000951[/tex]
Here the level of significance is [tex]\alpha = 5\% = 0.05[/tex]
Given that the p-value < [tex]\alpha[/tex] then we reject the null hypothesis
Then the conclusion is
There is sufficient evidence to conclude that there are more passengers riding the 8:30 train
round each amount to the nearest hundred to find the estimate of 9635 - 4891
Answer:
the answer is 4,744
Step-by-step explanation:
just subtract
Which function has a period of 4π?
y = one-half sine (one-half x)
y = sine (one-fourth x)
y = 2sin(2x)
y = 4sin(x)
Answer:
The answer is a
Step-by-step explanation:
based on the equation, period=2pi/b, you can just plug in the values for the equation on each option, b being the constant in front of x.
The time period of first option is [tex]4 \pi[/tex].
Thus, first option is correct.
Compare given option from [tex]y=asin(wx)[/tex]
Where w is frequency.
First option is, [tex]y=\frac{1}{2} sin(\frac{1}{2}x )[/tex]
After comparing, We get [tex]w=\frac{1}{2}[/tex]
As we know that, Time period [tex]T=\frac{2\pi}{w}[/tex]
[tex]T=\frac{2\pi}{1/2}=4\pi[/tex]
Hence, function [tex]y=\frac{1}{2} sin(\frac{1}{2}x )[/tex] has period of [tex]4\pi[/tex].
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I need help with #13 and #14 please
A tourist traveled 10 km away from the city by bus, and then continued his journey by foot in the same direction at the speed of 5 km/h. At which distance y was he from the city in x hours of walking?
Answer:
y = 10 + 5x
Step-by-step explanation:
We are told he travelled 10 km away from the city by bus.
Now, after that he walked by foot in the same direction at the speed of 5 km/h.
Now, distance = speed x time
In x hours, distance he will have walked by foot = 5x
Which means total distance he has covered both by bus and walking by foot = 10 + 5x
We are told y is the distance from the city after x hours of walking.
Thus;. y = 10 + 5x
It cost ayden $16.90 to send 169 text messages. How much would it cost to send 6 text messages
c60
$0.6
Step-by-step explanation:Hi there !
169ms ............. $16.90
6ms................... $ x
x = 6×$16.90/169
= 6×c1690/169
= c10140/169
= c60
= $0.6
Good luck !
It cost Ayden $0.6 for 6 text messages.
What are proportions?Proportion is a mathematical comparison between two numbers. According to proportion, if two sets of given numbers are increasing or decreasing in the same ratio, then the ratios are said to be directly proportional to each other.
Given that, It cost Ayden $16.90 to send 169 text messages. we need to find how much would it cost to send 6 text messages,
We will set a proportion for this question,
Let it cost x for 6 texts,
therefore,
16.9 / 169 = x / 6
0.1 = x/6
x = 0.6
Hence, it cost Ayden $0.6 for 6 text messages.
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the kline family went on vacation last year and paid $199 a night for the hotel room. This year, the price has increased by 5% . what is the nightly rate for the hotel room this year?
Answer: $208.95
Step-by-step explanation: $199 x .05= 9.95 + $199= $208.95
if you have the multiple choice answers:
A. $9.95
B. $204.00
C. $208.45
D. $298.50
the answer would be C. $208.45.
final = original ±- (% for problem × original)
=199 + 5% × 199
=199 + 0.05 × 199
=199 + 9.95
=208.95
A parabola $ax^2+bx+c$ contains the points $(-1,0)$, $(0,5)$, and $(5,0)$. Find the value $100a+10b+c$.
Answer:
-55
Step-by-step explanation:
(a,b,c) = (-1, 4, 5)
100a = -100
10b = 40
c = 5
-100 + 40 + 5 = -55
If ∠BPE is a right angle, m∠BPD = (3x+5)°, and m∠EPD = 2x°, then find m∠BPD
Answer
x = 17, m∠BPD = 56°
Step-by-step explanation
Since ∠BPE is a right angle
Therefore,
(3x +5)° + 2x° = 90°
(5x + 5)° = 90°
5x + 5 = 90
5x = 90 - 5
5x = 85
x = 85/5
x = 17
m∠BPD = (3x+5)° = (3*17+ 5)°= (51+5)° = 56°
m∠BPD = 56°
Answer:
x = 17, m∠BPD = 56°
Step-by-step explanation:
In a recent survey, students were asked how long they play video games in one sitting. The interquartile range of the length of play times was 43 minutes. Which of the following is the best interpretation of this value?
Fifty percent of the video game data is below 43 minutes.
The middle half of the video game data has a range that is 43 minutes wide.
The number of minutes played by students typically varies by about 43 minutes from the mean.
The difference between the smallest and largest values in the video game data was 43 minutes.
Answer:
The middle half of the video game data has a range that is 43 minutes wide.
Step-by-step explanation:
Given that:
Interquartile range = 43 minutes
The interquartile range is obtained by taking the difference of the third quartile (Q3) and first quartile (Q1) value (Q3 - Q1) Hence, the interquartile range contains the middle 50% of the sample and the obtained value gives the variability or spread of the middle 50% of sample data. (Q3 - Q1) gives the spread between the upper and lower bound of the data which corresponds to the middle 50 % of the data.
In the example above, the spread is 43 minutes and is therefore, the range of the middle half(50%) of the sample data.
Answer:
The middle half of the video game data has a range that is 43 minutes wide.
Step-by-step explanation:
Why is this divergent?
Step-by-step explanation:
Cosecant is undefined at π/2, so we can rewrite this integral as:
lim(u→π/2) ∫ᵤᵖⁱ 35 csc(x) dx
lim(u→π/2) 35 ln│csc(x) − cot(x)│|ᵤᵖⁱ
lim(u→π/2) [35 ln│csc(π) − cot(π)│ − 35 ln│csc(u) − cot(u)│]
undefined
The integral diverges.
Lines LaTeX: CEC E and LaTeX: ADA D intersect at LaTeX: BB.
Lines C E and A D intersect at the point B. Angle A B C is labeled 37 degrees.
Select all the true statements.
Group of answer choices
The measure of angle LaTeX: CBA C B A is equal to the measure of angle LaTeX: DBE D B E .
The sum of the measures of angles LaTeX: CBA C B A and LaTeX: DBE D B E is 180 degrees.
The measure of angle LaTeX: CBD C B D is equal to the measure of angle LaTeX: ABE A B E .
The sum of the measures of angles LaTeX: CBD C B D and LaTeX: CBA C B A is 180 degrees.
The sum of the measures of angles LaTeX: CBA C B A and LaTeX: DBE D B E is 90 degrees.
Answer:
✔️The measure of angle <CBA is equal to the measure of angle <DBE.
✔️The measure of angle CBD is equal to the measure of angle ABE.
✔️The sum of the measures of angles CBD and CBA is 180 degrees.
Step-by-step explanation:
Vertical angles are formed when two straight lines intersect each other at a certain point. The diagram given is a typical example. This, vertical opposite angles formed are said to be congruent, that is their measures are equal to each other.
The following statements are true of the given diagram:
✔️The measure of angle <CBA is equal to the measure of angle <DBE.
(<CBA and ,<DBE are vertically opposite angles)
✔️The measure of angle CBD is equal to the measure of angle ABE.
(They are both vertically opposite angles)
✔️The sum of the measures of angles CBD and CBA is 180 degrees.
(<CBA and <CBD are supplementary angles)
What is the value of the expression All of 2.8 multiplied by 10 to the power 7 over all of 1.4 multiplied by 10 to the power 3?
Answer:
2.0 x 10^10
Step-by-step explanation:
Answer:
2.0*10^4
On math away I put the question and put evaluate in scientific notion and it got this answer.
Jan had a bag of marbles. She gave half of them to James and then a third of the marbles still in the bag to pat. She then had 6 marbles left. How many marbles were in the bag to start with?
Answer:
32 marbles
Step-by-step explanation:
Since she only has 6 left, you multiply it by 3 to get the amount she gave to Pat. Then you multiply that number by 2 to get the final amount.
We are required to find the total number of marbles in the bag
The the total number of marbles in the bag is 18
let
Total number of marbles in the bag = x
James = 1/2 of x
= 1/2x
Remaining marbles = x - 1/2x
= 1/2x
Pat = 1/3 of 1/2x
= 1/3 × 1/2x
= 1/6x
Marbles left in the bag = 6
The equation:
Total = James + Pat + marbles left
x = 1/2x + 1/6x + 6
x = (3x + x) / 6 + 6
x = 4x /6 + 6
subtract 4x/6 from both sides
x - 4x/6 = 6
(6x - 4x) / 6 = 6
2x / 6 = 6
cross product
2x = 6 × 6
2x = 36
divide both sides by 2
x = 36 / 2
x = 18
Therefore, the total number of marbles in the bag is 18
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Jenny wants to order tickets to a production of Charles Dickens’ A Christmas Carol. The ticket broker charges a one-time fee of $15 plus $28 per ticket. The total cost of t tickets can be found using the expression 15+28t. How much will it cost Jenny to purchase 4 tickets?
$127 is the answer.. can i have a brainliest? :)
prime factorization of the following numbers in exponential form 48prime factor of 32
Please I need help!!
This question is worth 30 points and I promise that i will give Brainly to the person that answer these.
1/2s=4s-21 please answer with steps
Answer:
s = 6
Step-by-step explanation:
1/2s=4s-21
Multiply each side by 2 to get rid of the fractions
2*(1/2s)=2*(4s-21)
s = 8s - 42
Subtract 8s from each side
s - 8s = 8s -42 -8s
-7s = -42
Divide by -7
-7s/-7 = -42/-7
s = 6
Yari says that the product 230×104 has four zeroes. Is she correct? In the box below, explain your answer including how patterns for multiplying by powers of 10 help determine the final answer. Show your work to support your conclusion.
Answer:
Step-by-step explanation:
No she is not because if you do 230 times 104 you get 23920 and there is only one zero. [tex]230*104=23920[/tex]
No, she is incorrect because if you do 230 times 104 you get 23920 and there is only one zero.
What is multiplication?In mathematics, multiplication is defined as the sum of the numbers to the other number given. Like if 2 is multiplied by 3 then the multiplication will be the sum of the two three times.
Multiplication is the process of determining the product of two or more numbers in mathematics. A product, or an expression that specifies factors to be multiplied, is what happens when you multiply two numbers in mathematics.
The product of the two numbers 230 and 104 will be,
230
x 104
______
920
000x
230xx
______
23920
Therefore, she is incorrect because if you do 230 times 104 you get 23920 and there is only one zero.
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-6(2r +8)=-10(r-3)
I need the work to
Answer:
r = -39
Step-by-step explanation:
So we are trying to solve the equation for r.
-6(2r + 8) = -10(r - 3)
Divide both sides by -2. (This will make distributing much easier.)
3(2r + 8) = 5(r - 3)
Distribute the 3 on the left side and the 5 on the right side,
6r + 24 = 5r - 15
Subtract 24 from both sides.
6r = 5r - 39
Subtract 5r from both sides.
r = -39
So now we have solve the equation.
I hope you find my answer and explanation to be helpful. Happy studying. :)
Answer:
Ok its -39
Step-by-step explanation:
https://www.tiger-algebra.com/en/solution/linear-equation-one-unknown/-6(2r+8)=-10(r-3)/
Mason has 1,015 pounds of apples. He sells 9 bushels, 25 boxes, and 40 bags. How many pounds of apples does Mason have left? Enter your answer in the box. Container Bushel Box Bag Pounds Per Container 39.2 15.5 pounds
Answer:
Mason is left with 54.7 pounds of apples
The larger of two numbers is 20 more than the smaller number. Four times the larger increased by the smaller number is 25. Find both numbers.
Answer:
The numbers are 9 and -11
Step-by-step explanation:
Given
Represent both numbers with x and y where x is the biggest.
[tex]x = 20 + y[/tex]
[tex]4x + y = 25[/tex]
Substitute 20 + y for x in the second equation
[tex]4(20 + y) + y = 25[/tex]
[tex]80 + 4y + y = 25[/tex]
[tex]80 + 5y = 25[/tex]
Solving for y
[tex]5y = -55[/tex]
[tex]y - \frac{-55}{5}[/tex]
[tex]y = -11[/tex]
Solving for (x)
[tex]x = 20 + y[/tex]
[tex]x = 20 - 11[/tex]
[tex]x = 9[/tex]
The numbers are 9 and -11
Erin had 55 Stuffed bears she took out her 7 favorites and equally divided the rest among her 3 sisters how many bears did each sister get
Answer:
16
Step-by-step explanation:
When you start off with 55 stuffed bear and take away 7 you get 48 and, 48/3 =16
Which triangle CANNOT be drawn?
A.acute scalene triangle
B.obtuse scalene triangle
C.isosceles right triangle
D.obtuse equilateral triangle
Answer:
I think its D. A triangle thats obtuse cant be equal because one of the angles has to be over 120°.
