Answer:
12
Step-by-step explanation:
Woah that's a lot of points! Well in the list 12 is the largest! I think it may be wrong because it's pretty simple but yeah!
The McGee family is looking to rent a large truck for their upcoming move. With Luther's Moving, they would pay $38 for the first day plus $7 per additional day. With Springdale Rent-a-Truck, in comparison, the family would pay $44 for the first day plus $4 per additional day. Before deciding on which company to use, Mrs. McGee wants to find out what number of additional days would make the two choices equivalent with regards to cost. What would the total cost be? How many additional days would that be?
The McGee family would pay _______$ either way if they rented the truck for ____ additional days.
HELPPPP
Answer: The McGee family would pay $52 either way if they rented the truck for 2 additional days.
Step-by-step explanation:
Luther's Moving Company:
38 is how much they'll pay on the first day plus 7 per every additional day
This is represented by 7x+38
Springdale Rent-a-Truck
44 is how much they'll pay on the first day plus 4 per every additional day
This is represented by 4x+44
Set the equations equal to each other
7x+38=4x+44
Move the 38 to the other side by subtracting
7x=4x+44-38
7x=4x+6
Move 4x to the other side by subtracting
7x-4x=6
3x=6
Divide 3 to get x alone
3x/3=6/3
x=2
They'll be equal after 2 additional days
Plug in 2 to each equation
Luther: 7(2)+38
14+38=52
Springdale: 44+4(2)
44+8=52
What is the best estimate for a length of a car?
Answer:
Yards
Step-by-step explanation: Yards make the most since because the average car is about 3 to 5 yards.
Gorge is building flower boxes to sell as gifts . Draw and label a net to represent a flower box . Then find the amount of material gorge needs for each box. Explain why you drew the net the way you did
The first net represented the flowers box.
What is dimensions?Dimensions in mathematics are the measurements of the size or distance of an object or region or spaces in one Direction. In simple terms-, it is the measurements of to the lengths, width, and heights of anything's. Dimensions are generally expresses as: Lengths. Breath.
This questions doesn't involved any sorts of comparisons of the dimensions. If you're taken a look, the two figured are perfectly similarly, besides the fact that the seconds one has an additional to one of the rectangular sides of the net.
The first figure, if you weren't to imagined, would form a box without a top. The seconds figures has that one attachments to one of the rectangular side's such that it is, in factory the top.
But this flowers box doesn't have- a top, provides that it is filled with flower's inside.
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I am an odd number. Take away one letter and I become even. What number am I?
Answer:
seven
Step-by-step explanation:
Lol thxx for the points
Pls give brainliest! Also, plz sub to kgirl633 on yt.
What is the length of LJ PLEASE HELP
Answer:
4.7
Step-by-step explanation:
Answer:
it should be 4.7
Step-by-step explanation:
9n^2 - 24 + 16
please help
Answer:
lol the answer is the second one
In the early part of this century, the drug company, Merck, produced a powerful non- steroidal anti-inflammatory drug (NSAID) known as Vioxx. Vioxx was very effective in reducing pain due to arthritis and, unlike some NSAIDs, did not cause digestive system or liver problems. However, a couple of years after Vioxx was introduced to the market, some independent studies showed a possible connection between NSAIDs and increased risk of heart attack in the elderly. Since many arthritis sufferers (and many Vioxx users) are elderly, these studies were a cause of concern.
To test whether this was the case for Vioxx, Merck conducted a large-scale study in which 3025 randomly selected elderly Vioxx users were put on the drug while 2875 were given a placebo. The volunteers were monitored for 18 months. During this time, 334 of the Vioxx group members and 272 members of the placebo group suffered heart attacks.
Required:
a. Compute by hand a 90% confidence interval for the difference in heart attack risk between Vioxx users and non-Vioxx users (the placebo group.)
b. Interpret the interval. What action does it suggest should be taken regarding Vioxx?
Answer:
a
\(0.0028 < p_1 - p_2 < 0.0288\)
b
The interval means that there is 90% confidence that the true difference between the proportion of Vioxx users who suffered from heart attack and the non-Vioxx users (the placebo group ) who suffered from heart attack lie within the interval
The use of Vioxx drug should be stopped
Step-by-step explanation:
From the question we are told that
The sample size for Vioxx users is \(n_1 = 3025\)
The second sample size for placebo is \(n_2 = 2875\)
The number of Vioxx users that suffered heart attack is \(k = 334\)
The number of non-Vioxx users that suffered heart attack is \(g = 272\)
Generally the sample proportion for Vioxx users is mathematically represented as
\(\r p_1 = \frac{k}{n_1}\)
=> \(\r p_1 = \frac{334}{3025}\)
=> \(\r p_1 = 0.11041 \)
Generally the sample proportion for placebo users is mathematically represented as
\(\r p_2 = \frac{g}{n_2}\)
=> \(\r p_2 = \frac{272}{2875}\)
=> \(\r p_2 = 0.09461 \)
Generally the confidence level is 90% , then the level of significance is \(\alpha = (100-90)\%\)
=> \(\alpha = 0.10\)
Generally the critical value of \(\frac{\alpha }{2}\) from the normal distribution table is
\(Z_{\frac{\alpha }{2} } = 1.645\)
Generally the standard error is mathematically represented as
\(SE = \sqrt{\frac{\r p_1 (1- \r p_1)}{n_1} + \frac{\r p_2 (1- \r p_2)}{n_2} }\)
=> \(SE = \sqrt{\frac{0.11041 (1- 0.11041)}{3025} + \frac{0.09461 (1-0.09461)}{2875} }\)
=> \(SE = 0.0079\)
Generally the margin of error is mathematically represented as
\( E= Z_{\frac{\alpha }{2} } * SE\)
=> \( E= 1.645 * 0.0079\)
=> \( E= 0.013\)
Generally the 90% confidence interval is mathematically represented as
\(0.11041 - 0.09461- 0.013 < p_1 - p_2 < 0.11041 - 0.09461+ 0.013 \)
=> \(0.0028 < p_1 - p_2 < 0.0288\)
The interval means that there is 90% confidence that the true difference between the proportion of Vioxx users who suffered from heart attack and the non-Vioxx users (the placebo group ) lie within the interval
Looking at the interval we see that proportion of Vioxx users who suffered is more compared to non-Vioxx users (the placebo group )[i.e the both limit of the interval is positive ] hence the use of Vioxx drug should be stopped
While riding her bike to the ocean and back home 7 times, Michelle timed herself at 54 min, 55 min 50 min, 48 min 42 min, 50 min, and 61 min. She had set a goal of averaging 51 minutes for her rides. How many minutes will she need to spend on her eighth ride to attain her goal?
jvghiuuytuury ioiy6r yyguytt7i y7t65yu
Determine the sampling error if the grade point averages for 10 randomly selected students from a class of 125 students has a mean of x =2. Assume the grade point average of the 125 students has a mean of p=2.7. O A. -0.7 OB. -0,07 O C. 2.35 OD. 1.65
The sampling error if the grade point averages for 10 randomly selected students from a class of 125 students has a mean of x =2. is A. -0.7.
Given:
Random number=10
mean of x=2
population=125
mean of p=2.7
Using this formula
Sampling error=x− μ
Where:
x= sample mean=2
μ=population mean=2.7
Let plug in the formula
Sampling error=2-2.7
Sampling error=-0.7
Inconclusion the sampling error is A.-0.7.
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help please!! thank you
Answer:
28h + 54=379
Step-by-step explanation:
"28h"=hour of pages she could read.
"+54" because she already have read it, so add it to the equation.
"=379" total of the pages in book.
2x+3y+1+3xi=x-2y+(3+y)i
Answer:
Step-by-step explanation:
I suppose the question is to solve the equation
\(2x+3y+1+3ix=x-2y+(3+y)*i\\\\2x+3y+1+3ix-x+2y-3i-iy=0\\\\x+5y+1+i(3x-y-3)=0\\\\\Longrightarrow\\\\\left\{\begin{array}{ccc|c|c|}x+5y&=&-1&-3&1\\3x-y&=&3&1&5\\\end{array}\right.\\\\\\\left\{\begin{array}{ccc}-16y&=&6\\16x&=&14\\\end{array}\right.\\\\\\\left\{\begin{array}{ccc}x&=&\dfrac{14}{16}\\\\y&=&\dfrac{-6}{16} \\\end{array}\right.\\\)
In the figure PQ || RS, find the value of x.
The value of x in the figure is 125°
And the right option is (D) 125°
To solve the problem, we use the formular for the sum of the interior angle of a polygon.
(n-2)180°
When a vertical line is drawn to touch point Q and S, it becomes a pentagon.Pentagon: A pentagon is a polygon with 5 sidesThe sum of the angle in a pentagon is\((5-2)180 = 540\)
From the figure,∠P+∠T+∠R+∠Q+∠S = 540°
\(35+200+x+90+90 = 540\)
\(415+x = 540\)
\(x = 540-415\)
\(x = 125\)
Hence the value of x in the figure is 125°
And the right option is (D) 125°
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21.5 sq. Cm
43 sq. Cm
100 sq. Cm
68.6 sq. Cm
\( \large \boxed{ \boxed{ \mathrm{21.5 \: \: cm {}^{2}} }}\)
Solution :By Observing the Above figure, we can conclude that the area of shaded region is equal to the Area of Square minus the sum areas of two equal semicircles (since their diameters are equal)
let's solve for area of square :
\(\longrightarrow \: \mathrm{side {}^{2} }\)
\(\longrightarrow10 {}^{2} \)
\(\longrightarrow \mathrm{100 \: cm {}^{2} }\)
Now,
Radius of the both semicircles measure :
\(\longrightarrow \dfrac{10}{2} \)
\(\longrightarrow5 \: cm\)
now, let's solve for their area
\( \longmapsto 2 \times \dfrac{\pi {r}^{2} }{2} \)
(Since, there are two semicircles)
\(\longrightarrow3.14 \times 5 \times 5\)
\(\longrightarrow78.5 \: cm {}^{2} \)
Area of Shaded region = Area of Square - Area of Semicircles, that is
\(\longrightarrow100 - 78.5\)
\(\longrightarrow \mathrm{21.5 \: cm {}^{2} }\)
\(\large\mathfrak{{\pmb{\underline{\orange{hope \: it \: helps \: you \: }}{\orange{.....}}}}}\)
What is formula to find perimeter of trapezoidal prism?
Answer:
7 duckpin utuyuuuu I have no idea where to watch the video is not a good day at work now and
A new board game comes with a deck of 20 cards: 5 red, 3 blue, 2 orange, and 10 green.
After the deck is shuffled, the player is to choose the top card and note its color, replace
the card, shuffle the deck again, and then choose the top card again and note its color.
What is the probability that both cards selected are blue?
A.3%
B.2.25%
C.9%
D.6.25%
Answer:
B
Step-by-step explanation:
3/20x3/20=
15/100x15/100
Complete the statements to find the measurements of ∠a and ∠b .
Answer:
1. 120
2. 60
3. 60,60
4. 60
Step-by-step explanation:
Hello :)
This is a fairly easy question if we work it through step by step. Let's get to it!
Adjacent angles are two angles that have a common side and a common vertex, and they both equal to 180 degrees. In this case with angle a and 120 degree angle, they are both adjacent angles.
So in the first box, angle a and the 120 degrees would equal to 180 degrees.
Solve for angle a and you get 60 degrees.
To find the angle for b, we have to adknowledge that all triangles have an overall angle of 180 degrees. Since a is 60 and c is 60, the only answer left is 60 for angle b also.
#a
Applying supplementary angles theorem
\(\\ \tt\longmapsto m<a+120=180\)
\(\\ \tt\longmapsto m<a=60\)
#b
Apply Angle sum property\(\\ \tt\longmapsto m<b+60+60=180\)
\(\\ \tt\longmapsto m<b+120=180\)
\(\\ \tt\longmapsto m<b=60\)
The graph shows the printing rate of Printer A. Printer B can print at a rate of 25 pages per minute. How does the printing rate for Printer B compare to the printing rate for Printer A
Answer:
The printing rate for Printer B is 10 pages more than the rate of printer A because the rate of 25 pages per minute is 10 pages more than the rate 15 pages per minute for Block A
Step-by-step explanation:
From the graph of the printing rate of Printer A, we can see that;
At 1 minute, number of pages printed = 15
At 2 minutes, number of pages printed = 30 minutes
At 3 minutes, number of pages printed = 45
Thus printing rate for printer A is; 15/1 = 30/2 = 45/3 = 15 pages per minutes
Since printer B can print 25 pages per minute, we can conclude that;
The printing rate for Printer B is 10 pages more than the rate of printer A because the rate of 25 pages per minute is 10 pages more than the rate 15 pages per minute for Block A
Cleo buys a new car for $18,900. The simple interest rate is 6.6% and the amount of loan (plus simple interest) is repayable in 5 years. What is the total amount that must be repaid?
Answer:
$6,237 down payment
Step-by-step explanation:
calculated \(18,900\)×\(6.6%\)%×\(5 = $6,237\)
Proof that irrational numbers are uncountable
Answer:
If the set of all irrational numbers were countable, then R would be the union of two countable sets, hence countable. Thus the set of all irrational numbers is uncountable
whats the answer to 4.23872345.25135x4446.56559=
Answer: the correct answer is 18,847.76184947253
Answer:
1.884776184E1284776184947.2528110465
Step-by-step explanation:
I dont have one
Your grandmother will be giving you $10,000 every year for the next five years, the first payment beginning at the end of the first year
A) If you invest these receivables in a bank at 6%, what is the total value at the end of 10 years if you make withdrawals of $3,000 in years 9 and 10?
B) An investor expects to receive $3,000 in year 2, $5,000 in year 5, and $7,000 in year 7. What is the present value of these payments if the interest rate is 8%?
Please also write the Excel formulas.
Answer:
a. The present value of these receivables is $42,123.64
b. The total value at the end of 10 years is $69,257.02
c. The present value of these payments is $10,059.37
Step-by-step explanation:
An analyst is reviewing a dataset of temperatures recorded at airports in the U.S. In a random sample of 87 airports, she finds the average summer temperature to be 87 degrees Fahrenheit. What value of z should be used to calculate a confidence interval with a 95% confidence level?
Answer:
We use z = 1.96
Step-by-step explanation:
We have that to find our \(\alpha\) level, that is the subtraction of 1 by the confidence interval divided by 2. So:
\(\alpha = \frac{1-0.95}{2} = 0.025\)
Now, we have to find z in the Ztable as such z has a pvalue of \(1-\alpha\).
So it is z with a pvalue of \(1-0.025 = 0.975\), so \(z = 1.96\)
We use z = 1.96
What is diameter d in meters if the distance around the track is 400 meters round your answer to the nearest tenth
Ben's Barbershop has a rectangular logo for their business that measures 7(1)/(5) feet long with an area that is exactly the maximum area allowed by the building owner. Create an equation that could be used to determine M, the unknown side length of the logo.
An equation that could be used to determine M, the unknown side length of the logo is X = (36/5) x M
Let's assume that the unknown side length of the logo is 'M'. The logo is a rectangle, and the area of a rectangle is given by multiplying its length and width. Since we know the length of the logo is 7(1)/(5) feet, we can write the equation:
A = L x W
where A is the area of the logo, L is the length of the logo, and W is the width of the logo.
Substituting the given values, we get:
A = (7(1)/(5)) x M
or
A = (36/5) x M
Now, we know that the area of the logo is exactly the maximum area allowed by the building owner. Let's assume this maximum area is 'X'. So, we can write another equation:
A = X
Combining both equations, we get:
X = (36/5) x M
This is the required equation that could be used to determine the unknown side length 'M' of the logo if we know the maximum area allowed by the building owner 'X'.
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Which point is located at -1 3/8?
Point C is located at -1 3/8
Hope that helps!
In a certain Algebra 2 class of 28 students, 7 of them play basketball and 5 of them play baseball. There are 18 students who play neither sport. What is the probability that a student chosen randomly from the class plays both basketball and baseball?
Answer:
2 students play both
Step-by-step explanation:n(u)=28
n(b)=7,n(b)=5,n(who play neither sport)=18
HERE,
n(u)=n(b)+n(b)-n(BnB)+n(who play neither sport)
28=7+5-n(BnB)+18
28=30-n(BnB)
n(BnB)=30-28
=2 answer
Triangle FGH, with vertices F(-5,-7), G(-2,-5), and H(-6,-2), is drawn inside a rectangle, as shown below.
The area of the triangle FGH is equal to 13√10 unit²
Given that the vertices;
F(-5,-7), G(-2,-5), and H(-6,-2)
We have to find the area of the triangle as;
Area of triangle = 1/2bh²
Here,
Area of triangle FGH = 1/2 (GH) (FG)²
Now,
Length of FG = √26
Length of GH = √10
Then,
Area of triangle FGH = 1/2 (GH) (FG)²
Area of triangle = 1/2 × √10 × √26²
Area of triangle = 1/2 × √10 × 26
Area of triangle FGH = 13√10
Therefore,
The area of the triangle FGH = 13√10 unit²
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QUESTION 6
Solve for a. (round to tenths)
8
a
14
Answer:
11.5
Step-by-step explanation:
Given:
Left side = 8
Bottom = a
Right side = 14
Using the Pythagorean theorem:
\(ax^{2}\) + \(8x^{2}\) = \(14x^{2}\)
Simplifying the equation:
\(ax^{2}\) + 64 = 196
Subtracting 64 from both sides:
\(ax^{2}\) = 132
Taking the square root of both sides:
a = \(\sqrt{132}\)
Calculating the approximate value of "a":
a ≈ 11.5 (rounded to the nearest tenth)
Therefore, the value of "a" in the given right triangle is approximately 11.5.
Javier teaches yoga classes at his community center. In a 60-minute class last night, he taught 30 poses. Today, he has a 30-minute class.
If he teaches at the same rate, how many poses will Javier teach in today's class?
Answer:
I'm guessing 15 poses because 30/60 half and 15/30 half so basically in the 60 minute lesson Javier spend 1 minute teaching them how do to each pose, so in the 30 minute lesson he'll spend 1 minute on the other poses.
Step-by-step explanation:
this was a little confusing and sorry if i dont make since
Answer:a minute !!!!!
Step-by-step explanation:
Find the area of the triangle.
18\cm
30 cm
Answer:
270
Step-by-step explanation: