Workout the following divisions.
Answer:
Here. Tell me if you don't understand my writing.
In a recent Super Bowl, a TV network predicted that 25 % of the audience would express an interest in seeing one of its forthcoming television shows. The network ran commercials for these shows during the Super Bowl. The day after the Super Bowl, and Advertising Group sampled 150 people who saw the commercials and found that 30 of them said they would watch one of the television shows. Suppose you have the following null and alternative hypotheses for a test you are running:
H0:p=0.53H0:p=0.53
Ha:p≠0.53Ha:p≠0.53Calculate the test statistic.
Answer:
The right solution is "-8.25".
Step-by-step explanation:
The given values are:
Sampled people,
n = 150
Null and alternative hypotheses will be:
[tex]H_0:p=0.53[/tex]
[tex]Ha:p\neq 0.53[/tex]
The z-statistics will be:
⇒ [tex]z=\frac{\bar{p}-p_0}{\sqrt{\frac{p_0(1-p_0)}{n} } }[/tex]
On substituting the values, we get
⇒ [tex]=\frac{0.2-0.53}{\sqrt{\frac{0.53(1-0.53)}{150} } }[/tex]
⇒ [tex]=\frac{-0.33}{\sqrt{\frac{0.24}{150}} }[/tex]
⇒ [tex]=\frac{-0.33}{0.04}[/tex]
⇒ [tex]=-8.25[/tex]
In Mr. Walker's 7th grade class, the 30 students created a pie chart showing their choices for favorite pet. Based on the class findings, how many students chose cat as their favorite pet? Explain.
A) 6
B) 10
C) 3
D) 9
Answer:
D - 9 students
Step-by-step explanation:
For this problem, you need to find the percentage of students left. Subtracting all the percentages you already know, you get 100 - 30 - 20 - 10 - 10, or 30. Since there are 30 students in the class, 30 percent of 30 is 9 students.
Hopefully this helps- let me know if you have any questions!
Determine whether each of the given values of x is a solution to the following inequality.
3x + 7 > -5
Answer:
2 -- True
0 -- True
-3 -- True
-4 -- False
-6 -- False
Step-by-step explanation:
When solved the inequality, 3x + 7 > -5, it would turn out to be x > -4
Anything greater than -4 is a solution.
Lucas is planting grass on the shaded portions of the yard. What will be the total area covered by grass?
Complete Question:
Lucas is planting grass on the shaded portions of the yard. What will be the total area of covered by grass? Fill in the missing.
Part A= 12 x ? = ? ft²
Part B= 0.5 x ? x 9 = ?ft²
Part C= 0.5 x 7 x ? = ?ft²
Total Area= ?ft²
Answer:
[tex]A = 108ft^2[/tex]
[tex]B = 27ft^2[/tex]
[tex]C = 24.5ft^2[/tex]
[tex]Area = 159.50ft^2[/tex]
Step-by-step explanation:
Given
See attachment
From the attachment;
Part A is a rectangle with dimension 9ft by 12ft
So,
[tex]A = 12ft * 9ft[/tex]
[tex]A = 108ft^2[/tex]
Part B is a triangle with dimension: height = 6 and base = 9
The height is calculated as:
[tex]Height = 12ft - 6ft = 6ft[/tex]
And the base is:
[tex]Base = 18ft - 9ft = 9ft[/tex]
So, the area is:
[tex]B = 0.5 * 6ft * 9ft[/tex]
[tex]B = 27ft^2[/tex]
Part C is a triangle with dimension: height = 7 and base = 7
So, the area is:
[tex]C = 0.5 * 7 * 7ft^2[/tex]
[tex]C = 24.5ft^2[/tex]
Total Area is:
[tex]Area = A + B + C[/tex]
[tex]Area = 108ft^2 + 27ft^2 + 24.5ft^2[/tex]
[tex]Area = 159.50ft^2[/tex]
find perimeter of the figure.
Answer:
I don't know if you want to be a good
Plz help me!
Plz we’ll mark brainliest if correct!
Answer:
Seems like 7 of them failed
Step-by-step explanation:
The chart pretty much tells you
Answer:
7 students
Step-by-step explanation:
What is the distance between (3, -2), (2, -4)?
i need da answer plssssssssss
Determine which equation has the same solutions as the given equation.
x2 − 10x − 11 = 0
A.
(x − 10)2 = 36
B.
(x − 5)2 = 36
C.
(x − 5)2 = 21
D.
(x − 10)2 = 21
I just want to mention that the question is wrongly written!
it's meant to be x² − 10x − 11 = 0 and not x2 − 10x − 11 = 0
and so the other equations!
Answer:
The answer is B: (x − 5)² = 36
Step-by-step explanation:
by solving the equations using the quadratic formula we found:
the solutions for x² − 10x − 11 = 0 | x = 11, -1
the solutions for A | x = 16, 4
the solutions for B | x = 11, -1
the solutions for C | x = [tex]\sqrt{21} +5[/tex], [tex]-\sqrt{21}+5[/tex]
the solutions for D | x = [tex]\sqrt{21}+10, -\sqrt{21}+10[/tex]
the given equation: x² − 10x − 11 = 0 and the equation B: (x − 5)² = 36 have the same solutions
Therfore B is the correct answer
30 + _ = 136 Cubic feet
Answer:
106
Step-by-step explanation:
Bring the values to one side and change the signs
Always substitute in brackets
_=136+(-30)
106=136-30
Thus your answer is 106
Nancy joined a school band .she bought 4 violins at 87.82 per violin and 2 song books
which were 7.96 each with 4 100 bills. how much change was Nancy given?
Answer:
$32.80
Step-by-step explanation:
Find out how much Nancy spent on 4 violins and 2 song books.
1 violin = 87.82
4 violins = 87.82 x 4 = 351.28
1 song book = 7.96
2 song books = 7.96 x 2 = 15.92
351.28 + 15.92 = 367.20
4 x 100 dollar bills = 400 dollars
Normally after paying for an item, if you pay much more money than the actual price of the item, you'll get some money back from the cashier. That's called a change.
400 - 367.20 = 32.80
How long will it take for an investment of $9000 to double at 4% Interest compounded continuously? Round to the nearest tenth of a year.
Jenna receives $0.09 in royalties each time her new song is played on the radio and $0.24 in royalties for each digital download from a website. During the month of January, her song was played an average of 120 times per day and downloaded a total of 200 times per day. Approximately how much did Jenna receive in royalties? Note that January has 31 days.
○ $1, 823
○ $548
○ $ 59
○ $1,596.70
The ticket sales at a movie theater were $6,569. Adult tickets are $12, and senior tickets are $11. The
number of senior tickets sold was 21 less than twice the number of adult tickets. Determine the
number of adult tickets and senior tickets sold.
They sold
adult tickets.
They sold
senior tickets.
Answer:
12x + 11y = 6569 (X is adult ticket, Y is senior ticket)
Y = 2x - 21
Now to plug it in:
12x + 11(2x-21) = 6569
12x+22x-231 = 6569
34x = 6569 + 231 = 6800
34x = 6800
x = 200
y = 379
200 adult tickets were sold and 379 senior tickets were sold.
find each measurement indicated. Round your answers to the nearest tenth. Please SHOW WORK!!
9514 1404 393
Answer:
9) 39.7°
10) insufficient information
11) 20.0 in
12) 19.0 m
Step-by-step explanation:
These Law of Sines problems are all worked the same way. For sides a, b, and opposite angles A, B, the relevant relationship is ...
a/sin(A) = b/sin(B)
This gives rise to formulas for angle and side:
A = arcsin(a/b·sin(B))
a = b·sin(A)/sin(B)
If the longest given side is not opposite the largest given angle, there may be two solutions.
_____
9) B = arcsin(8/12.5·sin(87°)) = 39.7°
10) missing a side or angle; insufficient information
11) f = (5 in)·sin(70.4°)/sin(13.6°) = 20.0 in
12) p = (22 m)·sin(59°)/sin(180°-59°-24°) = 19.0 m
If 2 cups makes 6 servings, how much makes 2 servings?
Answer:
two- thirds of a cup will Give 2 servings
plzzzzzzzzzzzzzzzz SOLVE THE PIc
Answer:
The area is 72.
Step-by-step explanation:
2 * 6 = 12
6 * 10 = 60
60 + 12 = 72
Hope this helped! Have a nice day! Plz mark as brainliest!!!
-XxDeathshotxX
Answer:
72 units squared
Step-by-step explanation:
6x2=12
10x6=6
60+12=72
Yoko is mailing packages. Each small package costs her $2.20 to send. Each large package costs her $3.40. How much will
it cost her to send 3 small packages and 1 large package?
Answer:
$10
Step-by-step explanation:
3($2.20)+3.40
6.60+3.40=10
Help me with both questions please please help!
Answer:
we need to know whats given above can you show us a picture of the table above?
Step-by-step explanation:
how do you calculate the standard error of the mean in SPSS?
Answer:
Hope this helps
Step-by-step explanation:
Std Error Mean – Standard Error Mean is the estimated standard deviation of the sample mean. This value is estimated as the standard deviation of one sample divided by the square root of sample size: 9.47859/sqrt(200) = . 67024, 10.25294/sqrt(200) = . 72499.
If 1=36, 2=38, 3=39, what does 4 equal to? kindly explain
please help me i really need help please
Answer:
104
Step-by-step explanation:
Hey There!
So essentially what this problem is asking us to do is solve for the missing angle in a triangle
Remember all of the angles in a triangle will add up to 180
so to find the missing angle we subtract the given angles (38 and 38) from 180
180-38-38=104
so we can conclude that angle A equals 104
Hope this helps!
Answer:
104 degrees
Step-by-step explanation:
Hope this helps!
Have a great day!
Given the function C(t) = (t - 2)(t + 6) (t - 4):
the coordinates of its C-intercept are
the coordinates of its t-intercepts are
Answer:
c*(t)-((t-2)*(t+6)*(t-4))=0
Step-by-step explanation:
ct - ((t - 2) • (t + 6) • (t - 4)) = 0
ct - (t - 2) • (t + 6) • (t - 4) = 0
3.1 ct-t3+28t-48 is not a perfect cube
ct - t3 + 28t - 48 = 0
Solve ct-t3+28t-48 = 0
which of the following is equivalent to 10-4
a. 1/100
b. -1/1,000
c. -1/100
d. 1/10,000
WILL GIVE BRAINLST
HAVE AN AMAZING DAY :)
Answer:
9, 12x=4x+8+20
12x-4x=28
8x=28
X=3.5
Answered both because I wasn't sure which one you needed help with.
how many 5 digits numbers can be created using digits 1,2,3,7, and 6 without repeating any digits within that 5-digit number?
There are 5 numbers that can be used.
The first digit can be 1 of 5
The second digit can be 1 of 4
The third digit is 1 of 3
The fourth digit is 1 of 2
The fifth digit is 1 of 1
Total digits that can be created = 5 x 4 x 3 x 2 x1 = 120
Half of a number is equal to 14
im stuck on this one but i have like 2 more questions left
Answer:
your answer is the third one
Step-by-step explanation:
if you subtract 17 from my number and multiply the difference by -6 the results is -138 what is Sarah's number
Answer:
40
Step-by-step explanation:
let the unknown be y (x is used as times(multiplication) )
(y-17)x-6=-138
add /-6 to both sides
y-17x-6/-6=-138/-6
y-17=23
make y independent/add 17 to both sides
y-17+17=23+17
y=40
or in an easier way
-138/-6 =23
23+17=40
simply reversing the question to get the answer