Answer:
x=9
Step-by-step explanation:
8.88=4.44x-31.088.88-4.44x=-31.08-4.44x=-31.08-8.88-4.44x=-39.96x=9(we divided both rquations by -4.44)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".
A cylindrical soup can has a diameter of 3.8 in. and is 5.4 in. tall. Find the volume of the can.
Answer:
the volume of the can is 61.21 cubic inches
Step-by-step explanation:
Given that
The diameter is 3.8 inches so the radius would be = 3.8 ÷ 2 = 1.9 inches
And, the height of the cylindrical soup is 5.4 inches
We need to find out the volume of the can
As we know that
The volume of the can is
[tex]Volume = \pi r^2h\\\\Volume = 3.14 \times 1.9^2 \times 5.4[/tex]
Volume = 61.21 cubic inches
Hence, the volume of the can is 61.21 cubic inches
Please answer ☻
Convert the following number to a percentage find the value that belongs in the box.
333 = __%
Answer:
3 (or 3.33)
Step-by-step explanation:
333 as a percent is 3.33
this rounds down to 3, so 3 is your answer
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 )
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!
here’s the
question to my last
post :)
anyways
1 Pint 4 Fluid Ounces!
Simplify:
[tex]\frac{6^{3}-7\cdot3^{4}-2^{5}\cdot9}{\left(1-2^{3}\right)^{3}+7^{3}}[/tex]
Answer:
Simplifed:
[tex]\frac{6^{3}-7\cdot3^{4}-2^{5}\cdot9}{\left(1-2^{3}\right)^{3}+7^{3}}[/tex]
[tex]\frac{6^{3}-7\cdot3^{4}-2^{5}\cdot9}{\left(1-2^{3}\right)^{3}+7^{3} } \\ \frac{216 - 567 -288 }{ { - 7}^{3} + {7}^{3} } \\ \frac{ - 639}{0} [/tex]
infinity
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:
Solve these equations: tan^2x-3tanx+2=0
A floor mat for gymnastics is a square with a side length of 14m. What is the area of the floor mat in square metres? Explain?
Answer:
196 square meters
Step-by-step explanation:
If the floor mat is square and one side is 14m then all sides are 14m. Given this you would find area by multiplying length by width.
L=14 W=14
14x14=196
There are 196 square meters
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 solve correctly. NO links or files. Correct answers only if not report. I will even give an additional 10 if correct.
Answer:
144.51326 [tex]cm^{2}[/tex]
Step-by-step explanation:
A = 2πrh + 2π[tex]r^{2}[/tex]
d = 4
r = 4/2 = 2 cm
h = 9.5cm
A = 2π(2)(9.5) + 2π[tex](2)^{2}[/tex] = 144.51326 [tex]cm^{2}[/tex]
Don't know if you need to round it or not
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.
Can someone help me with this?
Answer:
G
Step-by-step explanation:
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
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 :)
Please help me ASAP!!!
Answer:
the third one (2,-18)
Step-by-step explanation:
You choose two different movies on a list at random. Out of 10 movies on the list, 6 are action movies. The first movie you choose is an action movie. What is the probability that the second movie is also an action movie? Write your answer as a fraction in simplest form.
Answer:
5/9
Step-by-step explanation:
You have 10 movies in total. You take 1 out of 6 action movies. Now you have 5 action movies left, so that means the probability is 5/9. It's 5/9 because you chose 1 action movie out of 10 movies in total, so that means there are 9 movies in total left.
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)
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]
Find the area of the SHADED region.
Round to the nearest TENTH if necessary.
Answer:
112
Step-by-step explanation:
18×8= 144 for the area of the entire rectangle.
4×4= 16/2=8 for the area of the triangle.
8×4=32 because there are 4 triangles.
144-32=112 because you don't want the area of the triangles only the shaded area
If x = 8 units, y = 6 units, and h = 4 units, then what is the area of the parallelogram shown above? A. 24 square units B. 32 square units C. 28 square units D. 48 square units
Answer:
c
Step-by-step explanation:
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
Please show the answer with the work, GodBless.
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
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
Consider the diagram below. Which of the following represents the value of the missing side? Round to the nearest tenth.
answer 2.5 i have solved the problem three times in my geometry class and got the same answer all three times
Considering the diagram below the value which represent the missing side, round to the nearest below, tenth, is 2 units.
What is Pythagoras theorem?Pythagoras theorem says that in a right angle triangle, the square of the hypotenuse side is equal to the sum of the square of the other two legs of right angle triangle.
The image of the given problem is attached below. In this diagram, the radius of the circle is 1.5 meter long.
The triangle ABC shown in the graph is right angle triangle as, the tangent of the circle is perpendicular with the radius of it at the point of contact.
Thus, by the Pythagoras theorem,
[tex](AB)^2+(BC)^2=(AC)^2\\(1.5)^2+(x)^2=(1.5+1)^2\\(x)^2=(2.5)^2-(1.5)^2\\x=\sqrt{6.25-2.25}\\x=\sqrt{4}\\x=2\rm\; units[/tex]
Thus, considering the diagram below the value which represent the missing side, round to the nearest below, tenth, is 2 units.
Learn more about the Pythagoras theorem here;
https://brainly.com/question/343682
#SPJ2
Question 2 options:
A pile of sand is in the shape of a cone. The diameter of the sand pile is 22 feet and the height is 12 feet.
The volume of the sand pile is approximately___ cubic feet.
Use 3.14 for pi. Do not round your answer.