Answer:
Step-by-step explanation:
It’s 2
Answer:
[tex]1 + 1 = 2[/tex]
[tex]espero \: haberte \: ayudado[/tex]
To test the durability of cell phone screens, phones are dropped from a height of 1 meter until they break. A random sample of 40 phones was selected from each of two manufacturers. The phones in the samples were dropped until the screens broke. The difference in the mean number of drops was recorded and used to construct the 90 percent confidence interval (0.46,1.82)
to estimate the population difference in means.
Consider the sampling procedure taking place repeatedly. Each time samples are selected, the phones are dropped and the statistics are used to construct a 90 percent confidence interval for the difference in means. Which of the following statements is a correct interpretation of the interval?
Answer:
See below.
Step-by-step explanation:
I see there are no answer choices you've provided, but in order to interpret a confidence interval correctly, you might say something like "We are 90% confident that the true difference in the mean number of drops is contained within the interval".
Which of the following statements is true for the figures shown?
Answer:
D.
Step-by-step explanation:
A rocket is launched from a tower. The height of the rocket, y in feet, is related to the time after launch, x in seconds, by the given equation. Using the equation, what height was the rocket launched from? y=-16x^2+57x+32
9514 1404 393
Answer:
32 feet
Step-by-step explanation:
0 seconds after launch, the rocket is still sitting on the tower. Its height is...
y = -16(0^2) +57(0) +32
y = 0 + 0 + 32 = 32
The rocket was launched from a tower 32 feet high.
PLEASE HELP ME WITH GEOMETRY!!!!
Answer:
R 29
Step-by-step explanation:
tan x = 7.7/14 = 2.8.8
AC opposite
BC adjacent
AB hypotenuse
Answer:
R
Step-by-step explanation:
S and P would be too high
ABR makes the most sense
because x = 7.7/14 = 2.8.8
Luke sold 4 times as many books as Maurice. If Maurice had sold 18 more books, he would have tied Luke for first place. How many books did Luke sell?
Answer:
24
Step-by-step explanation:
I guessed and checked but 24 -18 is 6 and 6 times 4 is 24
M + 18 = 4M
18 = 4M - M
18 = 3M
M = 18/3 = 6
4M = 4(6) = 24 sold by Luke
During the 1990s, the forested area of Guatemala decrelised at an average rate of 1.7%.
If the forested area in Guatemala in 1990 was about 34 400 square kilometers, write an equation for the forested area for t years
after 1990. If this trend continues, predict the forested area in 2015.
Answer:
A is correct answer
Step-by-step explanation:
Here, we want to write an equation for a depreciation
The general form is;
V = I( 1 - r)^t
V is the present value in 2015
I is the initial value in 1990 which is 34,400
r is the decrease rate which is 1.7/100 = 0.017
t is the difference in years which is 2015-1990 = 25
Substituting these values, we have
V = 34,400(1-0.017)^25
V = 22,407.65 km^2
Molly keeps a record of her money on a calendar. She had $112.64 saved prior to the week shown in the partial calendar. How much money did Molly have left at the end of this week?
bIt was like any other day. I woke up to the sound of Fletchling in the trees. Wait is that the sound of Fletchling!? Am I still dreaming or have all my dreams just come true?............
I did everything in my power to see if I was dreaming and I wasn’t. This was the start of a new beginning. I knew what had to happen next. Just then, Professor Oak walked in and my mom came into the room and said,”Charles I think you should stay here.”
But like any kid would do I didn’t listen.
Then it all came back like a flood.
I peeked out of a crack in my door and saw my mom and the Professor talking. I couldn’t tell what they were saying but there was a box on the table and it had my name on it. The addresser: Anonymous.
A car with an initial cost of $33,000 is decreasing in value at a rate of 7% each year. Write the exponential decay function to determine when the value of the car will be $15,000 to the nearest year
Answer:
n= 11.65 years
Step-by-step explanation:
Giving the following information:
Present Value (PV)= $33,000
Future Value (FV)= $15,000
Decrease rate (d)= 7%
To calculate the number of years it will take to reach $15,000; we need to use the following formula:
n= ln(FV/PV) / ln(1+d)
n= ln(15,000/33,000) / ln(1.07)
n= 11.65 years
i have 44 followers and my friend has 4 dollars. Then count the mass of followers on all social media and the mass of money earned on social media
Answer:
Purple
Step-by-step explanation:
Adam won $49 in a contest with 3 of his friends. How much money will each person get if they split the money evenly?
The circle with center O has a circumference of 36 units. What is
the length of minor arc AC?
А.
A. 9 units
B. 12 unh's
C. 18 units
D. 36 units
What is the measure of ∠A, the exterior angle of the triangle shown below? F. M∠A = 92°, because 180 – (50 + 38) = 92. G. M∠A = 272°, because 180 – (50 + 38) = 92 and 92 + 180 = 272. H.M∠A=78°,because 50–38=12and90–12=78. J. M∠A = 88°, because 50 + 38 = 88.
Answer: A is 88
Step-by-step explanation:
Sum of all angles is 180 degree.
Let the third interior angle be x.
38+50+x=180
88+x=180
x= 92
A and X are in linear pair.
A+X=180
A+92=180
A=88
A coach records the ages of the players on two of her teams. Which statement about the ages of the students is true? A The range of ages is the same for both teams.The range of ages is the same for both teams. B The mode(s) of the ages is the same for both teams.The mode(s) of the ages is the same for both teams. C The mean age of the players on the volleyball team is less than the mean age of the players on the baseball team.The mean age of the players on the volleyball team is less than the mean age of the players on the baseball team. D The median age of the players on the volleyball team is greater than the median age of the players on the basketball team.
Answer:
Bro u need to put in the graph or the chart or something
Step-by-step explanation:
Help
Help
Help
Help. Help help help help help help help help
Find the area of the shape shown below.
Answer:
6 + 2 = 8 x 2 = 16 divided by 2 = 8
Step-by-step explanation:
Formula of a trapezoid:
B1(base 1) + B2(base 2) x H (Height) x 1/2 (basically dividing by 2)
Help me please, I’m so confused on how to get x.
Answer:
x= 45 degree
Step-by-step explanation:
as this is a right angle triangle and a line is bisecting angle 90 degree from the mid point so angle is 90/2 = 45 degree .
hope it helps :)
Explain why the natural numbers represent a subset of the integers
Every natural numbers represent subset of the integers because integers consists of positive and negative numbers and natural numbers are positive numbers 1 to infinity.
Given f(x) = 1/3(9 + x), what is the value of f(-12)?
If a Hasan can eat 1/3 of his Shawarma in 1/2 minutes, how many Sharama’s can he eat in 2 minutes?
Answer:
He can eat 4/3 or 1 1/3 of his shawarma
Step-by-step explanation:
Review the proof.
A 2-column table with 8 rows. Column 1 is labeled Step with entries 1, 2, 3, 4, 5, 6, 7, 8. Column 2 is labeled Statement with entries cosine (2 x) = 1 minus 2 sine squared (x), let 2 x = theta, then x = StartFraction theta Over 2 EndFraction, cosine (theta) = 1 minus 2 sine squared (StartFraction theta Over 2 EndFraction), negative 1 + cosine (theta) = negative 2 sine squared (StartFraction theta Over 2 EndFraction), 1 + cosine (theta) = 2 sine squared (StartFraction theta Over 2 EndFraction), StartFraction 1 minus cosine (theta) Over 2 EndFraction = sine squared (StartFraction theta Over 2 EndFraction), sine (StartFraction theta Over 2 EndFraction) = plus-or-minus StartRoot StartFraction 1 minus cosine (theta) Over 2 EndFraction EndRoot.
Which step contains an error?
Answer:
Half Angle & X
Step-by-step explanation:
edge 2022
The step contains an error is Half Angle & X.
We have given that,
A 2-column table with 8 rows. Column 1 is labeled Step with entries 1, 2, 3, 4, 5, 6, 7, and 8.
What is the expression?An expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.
Column 2 is labeled Statement with entries cosine (2 x) = 1 minus 2 sine squared (x), let 2 x = theta, then x = StartFraction theta Over 2 EndFraction, cosine (theta) = 1 minus 2 sine squared (StartFraction theta Over 2 EndFraction), negative 1 + cosine (theta) = negative 2 sine squared (StartFraction theta Over 2 EndFraction), 1 + cosine (theta) = 2 sine squared (StartFraction theta Over 2 EndFraction), StartFraction 1 minus cosine (theta) Over 2 EndFraction = sine squared (StartFraction theta Over 2 EndFraction), sine (StartFraction theta Over 2 EndFraction) = plus-or-minus StartRoot StartFraction 1 minus cosine (theta) Over 2 EndFraction EndRoot.
We have determined the step contains an error.
Half Angle & X.
To learn more about the expression visit:
https://brainly.com/question/723406
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Please show the answer with the work, GodBless.
Solve for a.
a² = 16
Enter your answer in the box.
a = ± =
Answer: 4
Step-by-step explanation: take the square root of 16, because the opposite of squaring a number is finding the square root, and you get a=4
Ryan is installing new flooring in house. Ryan can install 196 square feet of flooring in 2 hours How much new flooring can Ryan install in 16 hours? Please let me know !
Answer:
1568
Step-by-step explanation:
196/2=98
98*16=1586
Ryan can install 1568 square feet of flooring in 16 hours
Hope this helps!
Solve for x. Round your answer to the nearest tenth.
Answer:
17.5
Step-by-step explanation:
[tex]15^{2}+9^{2}= 306\\[/tex]
[tex]\sqrt{306} = 17.5[/tex]
Answer:
x ≈ 17.5
Step-by-step explanation:
Using Pythagoras' identity in the right triangle
x² = 9² + 15² = 81 + 225 = 306 ( take the square root of both sides )
x = [tex]\sqrt{306}[/tex] ≈ 17.5 ( to the nearest tenth )
please help its due tmrrrr
Answer:
Reflected across the x-axis & translated 2 units down
Step-by-step explanation:
1. Which expressions are NOT equivalent? A 3x + 5 + 2(6 + 4) and 3x + 25 B (x + 5) – 2 and x + 3 C 2(x + 5) + 6 and 2x + 16 D 4(x + 7) and 4x + 11
Answer: A
Step-by-step explanation: becasue its A
The area of a rectangular field is 99m2. The length of one side is
11m. The farmer needs to know its perimeter to work out how
much fencing will be needed? Help
Answer:
40 m
Step-by-step explanation:
The length of another side
= 99÷11
= 9 m
The perimeter of the field
= 9×2 + 11×2
= 40 m
Answer:
40 m
Step-by-step explanation:
Hi there!
What we know:
The field is rectangularA = 99 m²Length of one side = 11 m1) Find the length of the other side
Plug all the given information into the area formula for a rectangle:
[tex]A=lw[/tex] where A is the area, l is the length and w is the width
[tex]99=11w[/tex]
Divide both sides by 11 to isolate w
[tex]\frac{99}{11} = \frac{11w}{11} \\9=w[/tex]
Therefore, the width of the field is 9 m.
2) Find the perimeter of the field
[tex]P=2(l+w)[/tex] where l is the length and w is the width
Plug in the length (11 m) and the width (9 m)
[tex]P=2(11+9)\\P=2(20)\\P=40[/tex]
Therefore, the perimeter of the field is 40 m.
I hope this helps!
North carolina has 12 less electoral votes than florida. Write and solve a subtraction equation if the total number of votes for both states is 64
Step-by-step explanation:
Given
North Carolina has 12 fewer electoral votes than Florida
The total number of votes is 64
Suppose Florida receives [tex]x[/tex] votes
thus, votes received by North Carolina is [tex]y[/tex]
So, we can write
[tex]\Rightarrow x-y=12\quad \ldots(i)[/tex]
[tex]\Rightarrow x+y=64\quad \ldots(ii)[/tex]
Solving the above equations we get
[tex]x=38,y=26[/tex]
A car travels at a rate of speed of 45 miles per hour for 12 hours. How far did it travel?
Answer:
540
Step-by-step explanation:
12×45=540
Have a good day
What’s the growth factor of f(x)=500(1+.12)^x
Answer:
12%
Step-by-step explanation:
For every value of x, the initial value is increased by 1+0.12 = 100% + 12%.
meaning we are adding 12% for every value of x
Please help :( BRAINIEST ANSWER
Answer:
3150 ft³Step-by-step explanation:
Since this is a rectangular prism, we need to do length × width × height to find the volume. Now despite the shape being tilted at an angle, nothing is different.
So we can see that the length is 25, the width is 18 and the height is 7
Rewrite the formula for volume replacing variables
25 × 18 × 7
Now solve.
25 × 18 = 450
450 × 7 = 3150
Now before we finalize our answer, there are two more things we need to do.
We need to add the measurement unit which is feet or ft
We also need to add ³ since it is volume
Add both of these to the end
3150 ft³ is your final answer