Answer:
Step-by-step explanation:
423
A teacher would like to estimate the mean number of steps students take during the school day. To do so, she selects a random sample of 50 students and gives each one a pedometer at the beginning of the school day. They wear the pedometers all day and then return them to her at the end of the school day. From this, she computes the 98% confidence interval for the true mean number of steps students take during the school day to be 8,500 to 10,200. If the teacher had used a 90% confidence interval rather than a 98% confidence interval, what would happen to the width of the interval
Answer:
The answer is "It would decrease, but not necessarily by 8%".
Step-by-step explanation:
They know that width of the confidence level is proportional to a confidence level. As just a result, reducing the confidence level decreases the width of a normal distribution, but not with the amount of variance in the confidence level. As just a result, when a person teaches a 90% standard deviation rather than a 98 percent normal distribution, the width of the duration narrows.
¿Qué es la condición física?
A) Conjunto de capacidades físicas, que se pueden mejorar mediante el entrenamiento.
B) Salud y ejercicio.
C) Fuerza, resistencia, velocidad y flexibilidad.
Answer:
A
Step-by-step explanation:
4. A mysterious card playing squirrel offers you the opportunity to join in
his game. The rules are:
To play you must pay him $2.
• If you pick a spade from a shuffled pack, you win $9
Find the expected value you win (or lose) per game.
.
Answer:
is there a picture along with this??
Hot chocolate or Apple cider
Blanket or slippers
Car or job
Cell phone or tablet
Job or college
School or fun
Day party or pool party
Birthday party or cook out
Wendys or McDonald's
In-n-Out or cook out
Wawa or sheets
apple cider
blanket
job
cell phone
job
fun
pool party
birthday party
McDonald's
cook out
N/A
The more frequently heroin is used, the greater the risk of permanent damage of addiction or dependence.
True
False
Find the lateral area of the following
cone. Leave your answer in terms of .
12 cm
5 cm
LA = [ ? ]7 cm2
The lateral surface area of the cone will be 65π square cm.
What is the lateral surface area of a cone?Let d be the diameter of the base circle, l be the slant height, and h be the height of the cone.
Then the lateral surface area of the cone will be
LSA = πrl
Then the slant height is given as
l² = r² + h²
l² = 5² + 12²
l² = 25 + 144
l² = 169
l = 13 cm
Then the lateral surface area will be
LSA = π × 5 × 13
LSA = 65π cm²
More about the lateral surface area of a cone link is given below.
https://brainly.com/question/27492847
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Anybody know the answer to this? I’ve been having a hard time
Answer: 2.39 inches (rounded)
Step-by-step explanation:
1.) Divide circumference (15) by 3.14 to get the diameter (~4.78, or 4.77707006...)
2.) Divide diameter by 2 for the radius (~2.39, or 2.38853503...)
evauate the problem 5y=30
Answer:
y = 6
Step-by-step explanation:
5y = 30
5y ÷ 5 = 30 ÷ 5
y = 6
The perimeter of a rectangle is 35.6 feet. The length of the rectangle is 12 feet.
What is the width of the rectangle? *
1. 5.8 feet
2. 23.8 feet
3. 11.8 feet
4. 23.6 feet
.
Answer:
The length is 2.4 1.2 times 2 to take away the both width sides minutes 2.4 from 7.2 you get 4.8 then divide by two because it’s a rectangle it has to length side and you get 2.4
so that is number 3
Step-by-step explanation:
please help me its 3 am and i am so tired that i have no energy left and im seriously trying to get done with 8 assignments and then i have to get ready for work by 6, thank you so much <3 NO LINKS OR FILES OR I WILL REPORT
Answer:
4 (2x + 3)^2 this is the answer I guess
Answer:
try 6
Step-by-step explanation:
please answer as soon as possible
Answer:
x>5
Step-by-step explanation:
hope this helps you!
If 2/3x - 1 = 4, then x =
Answer:
7.5
Step-by-step explanation:
2/3 x 7.5 = 5
5 - 1 = 4
I've Been struggling for a while can someone please help me? Thanks.
ASAP!! HELP ME PLS
Don’t put your fake files here
Bob wants to buy a pack of pens that costs $4.95. He has 2 dollar bills, 5 quarters, and two dimes. How much more money does he need?
Answer:
Bob needs $1.50 to buy the pack of pens
Anyoneee pls I need help
Answer:
3
Step-by-step explanation:
As in the first set of numbers
4,5,2 are successes.
but in the next set of numbers
5 is right before a fail.
but then straight passes after that
Subtract (5u + 6v) from (8u + 10v)
Answer:
-3u-4v
Step-by-step explanation:
5u+6v-(8u+10v)
=5u+6v+-1(8u+10v)
=5u+6v+-1(8u)+-1(10v)
=5u+6v+-8u+-10v
(combine like terms)
=5u+6v+-8u+-10v
=(5u+-8u)+(6v+-10v)
=-3u-4v
hope this helps
can you mark me brainliest pls
The value of the subtraction will be equal to -3u-4v.
What is an expression?The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.
Given that the two expressions are (5u + 6v) and (8u + 10v). The subtraction will be calculated as,
5u+6v-(8u+10v)
S =5u+6v+-1(8u+10v)
S =5u+6v+-1(8u)+-1(10v)
S =5u+6v+-8u+-10v
(combine like terms)
S =5u+6v+-8u+-10v
S =(5u+-8u)+(6v+-10v)
S =-3u-4v
Therefore, the value of the subtraction will be equal to -3u-4v.
To know more about an expression follow
https://brainly.com/question/25207082
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Someone help me out with this my grade are bad
Answer:
2 units tall by 1 unit wide
Step-by-step explanation:
On the given rectangle it tell you the conversion to m is 1 unit = 2 m.
The new figure that needs to be drawn has a conversion of 1 unit = 8m.
So, the fist thing we need to do is calculate the m on the width at the height of the original, which is 16 by 8.
looking at this we can now convert this measurement into our new conversion of 1 unit = 8 m. We can do this by dividing the height and width separately.
Ex:
Since 16 is divided by 8 two times so that gives us the answer of 2 units.
8 is divisible by 8 one time so that gives us the width of 1 unit
if this is confusing just think of it like: x=[tex]\frac{16}{8}[/tex] for the height or x = [tex]\frac{8}{8}[/tex] for the width.
#17: Jackson would like to determine which elective is the favorite among
his peers. He surveys every 20th person to walk through the front door of
school and finds that 27 out of 40 students like P.E. the best. If there are
800 students at the school, how many would you expect to say P.E.? *
Answer:
dic
Step-by-step explanation:
you suck it then eat it
x + 23
5x + 13
please help
Answer:
x = 2.5 or 5/2.
Step-by-step explanation:
They're congruent angle, so set them equal to each other
5x + 13 = x + 23
Solve for x:
4x = 10
x = 10/4 = 5/2 = 2.5
characteristics of 0.00753
Answer:
7.5 is the answer. You have to move the decimal 2 places to the right.
Step-by-step explanation:
otherwise i.d.k
ASAP
- How did you get the answer
- Will mark brianist
Answer:
c
Step-by-step explanation:
all companys are under 300k and applys to all 5
What is an expression that simplifies to x to the 24 power
Answer:
x⁹ * x⁸ * x⁷
Step-by-step explanation:
when numers with the same base are multiplied the exponents are added
x⁹ * x⁸ * x⁷
In ΔHIJ,
m
∠
H
=
(
4
x
+
1
)
∘
m∠H=(4x+1)
∘
,
m
∠
I
=
(
2
x
−
6
)
∘
m∠I=(2x−6)
∘
, and
m
∠
J
=
(
6
x
−
7
)
∘
m∠J=(6x−7)
∘
. Find
m
∠
J
.
m∠J.
Answer:
89 degrees
Step-by-step explanation:
Since these angles make up a triangle, we know that the total of these angles will make 180 degrees. So, we need to set the equations up appropriately, and solve for x:
[tex]180=(4x+1)+(2x-6)+(6x-7)\\180=12x-12\\192=12x\\x=16\\[/tex]
Then, you plug 16 back into the equation for angle J, and simplify:
[tex](6(16)-7)\\(96-7)\\(89)[/tex]
Therefore, the answer is 89 degrees.
Can someone plz help me with this one problem plz!!!
answer is d or c because when u find Mean u add all numbers the. divide and median is middle number
Step-by-step explanation:
mean us 7.5 median is 6 asssss
Match each equation to its description
A.Circle centered at (0,-4) with radius of 3
1.(x-1)^2 + y^2=9
2.x^2+(y+4)^2=9
3. (x-1) +( y - 4)^2=3
4.(x - 1)^2+(y - 4)^2=9
5.(x - 1)^2 + (y + 4)^2=3
Which is the correct answer
A.1
B.2
C.3
D.4
E.5
Answer:
[tex]\boxed {\boxed {\sf B. \ 2: x^2+(y+4)^2=9}}}[/tex]
Step-by-step explanation:
The equation for a circle is:
[tex](x-h)^2+(y-k)^2=r^2[/tex]
Where (h, k) is the center and r is the radius.
We know that the center of the circle is (0, -4) and the radius is 3. Therefore:
h= 0 y= -4 r=3Substitute the values into the formula.
[tex](x-0)^2+(y--4)^2=(3)^2[/tex]
Solve the first parentheses.
(x-0)² = (x)²= x²[tex]x^2+(y--4)^2=(3)^2[/tex]
Solve the next parentheses.
(y--4)² = (y+4)²[tex]x^2+(y+4)^2=(3)^2[/tex]
Solve the exponent.
(3)²= 3*3=9[tex]x^2+(y+4)^2=9[/tex]
This is the finished equation, which corresponds with number 2. Choice B (2): x²+(y+4)²= 9 is correct.
On a number line 8.63 would be located... choose all answers that make the statement true
A) to the right of 8.66
B) between 8 and 9
C) between 8.62 and 8.64
D) to the left of 8.61
Answer:
b and c
Step-by-step explanation:
because they are correct
Camden needs to lease out a music studio to record his new album. The studio charges an initial studio-use fee plus an hourly fee for each hour in the studio. The studio charges $50 per hour of use and the total cost charged for 5 hours is $700. Write an equation for the function P ( t ) , P(t), representing the amount of money Camden would have to pay to use the studio for t t hours.
Answer: [tex]P(t)=450+50t[/tex]
Step-by-step explanation:
Given
Studio charge $50 per hour and fixed charge for initial use
For 5 hours, it charges $700
Suppose x is the fixed charge
[tex]\therefore 700=x+50\times 5\\\Rightarrow x=700-250\\\Rightarrow x=\$450[/tex]
For t hours, studio charges
[tex]\Rightarrow P(t)=450+50t[/tex]
please answer below :)
Answer:
D, probably
Step-by-step explanation:
If we expect the pie chart to be angle-accurate, then Salary should be 90% of the full pie, so 90% of 360°
90% * 360° = 0.9 * 360° = 324°
Solve the system using
substitution
Y = 2X – 1
4x + 3y = 7
Answer:
1,1
Step-by-step explanation:
See steps below:) I could only show half of the steps. but you can use the app photo math. It will show you all the steps.