Answer:
5.96
Step-by-step explanation:
It is thought that not as many Americans buy presents to celebrate Valentine's Day anymore. A random sample of 40 Americans yielded 22 who bought their significant other a present and celebrated Valentine's Day. Estimate the true proportion of all Americans who celebrate Valentine's Day using a 98% confidence interval. Express the answer in the form the point estimates /- the margin of error.
Answer:
98% confidence interval of the true proportion of all Americans who celebrate Valentine's Day
(0.3672 , 0.7328)
Step-by-step explanation:
Explanation:-
Given Random sample size n =40
Sample proportion
[tex]p = \frac{x}{n} = \frac{22}{40} = 0.55[/tex]
98% confidence interval of the true proportion of all Americans who celebrate Valentine's Day
[tex](p-Z_{\alpha } \sqrt{\frac{pq}{n} } , p + Z_{\alpha } \sqrt{\frac{pq}{n} } )[/tex]
The Z-value Z₀.₉₈ = Z₀.₀₂ = 2.326
98% confidence interval of the true proportion of all Americans who celebrate Valentine's Day
[tex](0.55-2.326\sqrt{\frac{0.55 X0.45}{40} } , 0.55 + 2.326\sqrt{\frac{0.55 X0.45}{40} } )[/tex]
( 0.55 - 0.1828 , 0.55 + 0.1828)
(0.3672 , 0.7328)
Answer:
Step-by-step explanation:
98% confidence interval of the true proportion of all Americans who celebrate Valentine's Day
The Z-value Z₀.₉₈ = Z₀.₀₂ = 2.326
98% confidence interval of the true proportion of all Americans who celebrate Valentine's Day
( 0.55 - 0.1828 , 0.55 + 0.1828)
(0.3672 , 0.7328)
Tammy made fudge brownies and peanut butter brownies. Each batch of fudge brownies makes 7 pans. Each batch of peanut butter brownies makes 6 pans. Tammy made 5 batches and ended up with 31 pans of brownies. How many batches of each type of brownie did she make?
Hurry pls I need help
Answer:
Fudge: 16.69230766
Peanut: 14.30769228
Step-by-step explanation:
7/5x+6/5x = 31/5
13/5x = 31/5
13x=31
x=2.38461538
Multiply x by 7 for fudge and 6 for peanut.
10x + 3 - 4x - 7 how do u solve this
Answer:
The answer is 6x-4 if you need to combine the like terms.
Step-by-step explanation:
So first you see if there are any like terms so I see 10x and -4x so I add them together and get 6x. I look for other like terms and find 3 and -7 and add those together so I get -4. Then you combine the 2 answers and get 6x-4. I hope this helps you! If you need any other help please let me know in the comments.
Answer:
6x-4
Step-by-step explanation:
Question 1
Indicate the answer choice that best completes the statement or answers the question.
FINANCE Determine the amount of money in a savings account that provides an annual rate of 4% compounded monthly if the initial deposit is
$1000 and the money is left in the account for 5 years.
Oa $221.00
O b. S1221.00
Oc. $1490.00
Od $1000.00
Answer:
Correct choice: b. $1221.00
Step-by-step explanation:
Compound Interest
It occurs when the interest is reinvested on each compounding period. When it happens interest in the next period is then earned on the principal sum plus previously accumulated interest.
The formula is:
[tex]{\displaystyle A=P\left(1+{\frac {r}{n}}\right)^{nt}}[/tex]
Where:
A = final amount
P = initial principal balance
r = interest rate
n = number of times interest applied per time period
t = number of time periods elapsed
The initial deposit on a savings account is P = $1000. The account provides an annual rate of r = 4% = 0.04 compounded monthly. The value of n is 12 since there are 12 months in a year. The money is left in the account for t=5 years. Substituting the values:
[tex]{\displaystyle A=\$1000\left(1+{\frac {0.04}{12}}\right)^{12*5}}[/tex]
[tex]{\displaystyle A=\$1000\left(1.00333}\right)^{60}}[/tex]
A = $1221
Correct choice: b. $1221.00
Where is the point (-1,4) located in the coordinate plane?
O A. In quadrant II
O B. On the x-axis
O C. In quadrant
O D. In quadrant III
Answer: A
Step-by-step explanation:
If pllot the point -1 on x-axsis and 4 on y. Quadrant || on the top left corner :)
Which is the correct answer?
Note: ( if you give me a silly or absurd answer I will report you )
Answer:
A
Step-by-step explanation:
you take the f(x) and make it negative because it's positive
you make -x^3 positive because it's negative
you make -9 positive because it's negative
hope this helps!
I GIVE BRAINLIEST!!
Please explain you work!!!
IF CORRECT I WILL GIVE BRAINLIEST!!
Please help me do this problem!
Screenshot below!
Answer:
9
Step-by-step explanation:
Describe how to add 3 2/5 and 1 1/5 and how to subtract them.
90 decimeters = _______________ millimeters
Answer:
900 millimeters
Step-by-step explanation:
Hopes this helps and have a great day:)
pls help im really dum
Answer:
1: h0m0zyg0us
2: 75%
3: 50%
Step-by-step explanation:
i think im not sure
Enter a positive common factor (other than 1) of the fraction's numerator and
denominator.
9/21
can somebody please help me i’ll gift you 40 points
Answer:
B and D
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
she got 35 is positive 35
she bought something for 15 and something for 7 is negative 15 and 7
she got 10 is positive 10
+35 + (-15) + (-7) + 10
35-15-7+10
PLZZZ HELP!?!?!Graph the linear equation y=2x+4. Then identify the x-intercept.
Answer:
x= -2
Step-by-step explanation:
To graph it. You know that the slope(m) is 2 and y-int is 4.
So put a point on (0, 4), (1, 6) and (0, 2) then use your ruler and just draw a straight line hitting all these points.
Ex.
When x=1
y=2x+4
y=2(1)+4
y=6
(1, 6) is a point
To solve for x-int, make y=0 because it's on the x-axis
y=2x+4
0=2x+4
-4=2x
x=-2
Answer: x intercept= (-2,0)
y intercept= (0,4)
Step-by-step explanation:
There are 5 cat owners to 6
dog owners. If there are 30 dog owners how many cat owners are there?
Answer:
25 cat owners!!!
Step-by-step explanation:
It's a ratio word problem...
5:6
Multiply both Numerator and Denominator by 5.
25:30
May I please have Brainliest??!??
- ElizabethKate
Answer: 19
Step-by-step explanation: So 6+5=11 then 30-11=19
can someone answer please I don't understand
Answer:
you just add X=8 to 5x-6
You always have to multiply it
so its 5•8-6= 34
Answer: The answer is 34
Step-by-step explanation: all you had to do was think all of the answers below are high numbers so you most likely had to multiply so i did 5x8-6=34
The length of a rectangle exceeds the width by 2 cm . If the diagonal is 10 cm long , find the width of the rectangle .
The terminal point of Dis ( 1/2,3/2). What is cos 0?
O A. V 3
B. V3
Coc.
o D. V
SUBMIT
Answer:
(c). [tex]\frac{1}{2}[/tex]
Step-by-step explanation:
The cosine is the "x" coordinate of the terminal point on the unit circle.
Thus the answer is (c). [tex]\frac{1}{2}[/tex]
I NEED HELP ASAP ITS FOR TODAY PLZ SHOW YOUR WORK
Answer:
(1)-5x (2)-3x and 0x
Step-by-step explanation:
(1) -7x-2y=5
-7x-12=5
(2) y=-8x+5=-3x
y=-5x+5=0x
12 + x - 8 = 3 + 2x
Solve for x
Step-by-step explanation:
I used an online Algebra Calculator to check my answer against to gurantee my answer is 100% correct for you.
Please mark Brainliest.
Hayden plans to take a loan out to buy his Ultimate PC
Gaming Desktop. He will borrow $6,200 from the bank
at a rate of 3.5% annually. The length of the loan will be
5 years. How much interest will Hayden have to pay on
the loan? What is the total that Hayden will have to pay
the bank back?
Give step by step plz
Answer:
The rate of simple interest for loan was 8%
Step-by-step explanation:
Given
Principal amount = p = $6200
Time = t = 1 year
Amount after interest = $6696
We have to calculate the amount of interest first
So,
Interest amount =I= Amount after interest - principal amount
= 6696-6200
=$496
The formula for simple interest is:
The rate of simple interest for loan was 8%
Keywords: Simple interest, percentage
Learn more about simple interest at:
11 Select the correct answer. A basketball team played 15 games and won 80% of them. If the team expects to play 30 games in all how many more games must it win to finish the season with a 90% winning percentage? СА. 12. 00 14 15 OD. 27
Step-by-step explanation:
They need to play 15 more games
Question in picture will give brainly
Answer:
Number 10. is SAS I believe
Step-by-step explanation:
What is the reason for each step in the solution of the equation?
-6x = -2(a + 12)
Match the reason with the correct step in the equation.
a cinema has 240 seats. 144 seats were sold for the current movie. What percent of seats were empty?
Answer:
60%
Step-by-step explanation:
A foreign country uses the stellar as its currency. Before a trip to that country, wants to exchange $ to stellars. Which of Bank A and Bank B has the better exchange rate? How many more stellars would get if exchanged h $ at the better exchange rate instead of at the other rate?
Penelope's car gets 300 miles on 20 gallons of gas. Blake's car gets 495 miles on 15 gallons of gas.
Which car has better gas mileage?
Answer:
Blake's car gets better mileage
Step-by-step explanation:
In order to find how many miles you get per gallon, you would do miles/gallons
As I'm typing this I realize it makes no sense but pretty much you just do 300/20 which is 15 mpg, and 495/15 which is 33 mpg, therefore Blake's car is better
I GIVE BRAINLIEST!
Explain your answer please!!
Answer:
y=3x-1
Step-by-step explanation:
First, we must find the slope of the equation. To do that we take two ordered pairs from the graph.
(2,5) (10,29)
The equation for slope is m=y2-y1/x2-x1
m=29-5/10-2
m=24/8
m=3
Now, we will find the variable B.
5=3(2)+b
5=6+b
-1=b
That's how we get the equation!
y=3x-1
Answer:y= 3x-1
Step-by-step explanation:
m= y2-y1/ x2-x1=
29-5/10-2=3
Now,use: y-y1= m(x-x1)
y-5=3( x-2)
y= 3x-1
After school, Shawn had a science club meeting for 1 hour, followed by a choir rehearsal that lasted for 45 minutes. The choir rehearsal ended at 5:30 P.M. What time did the science club meeting begin?
Include A.M. or P.M. in your answer Please help me fast !!!
Answer:
3:45 P.M.
Step-by-step explanation:
SO we start at 5:30 P.M.
Going backwards 45 mins = 4:45 P.M.
Then backwards 1hr or 60 mins = 3:45 P.M
Indicate whether the following congruence statement is true or false.
50 points
Step-by-step explanation:
Since line NL is not necessarily congruent to MQ (labelled with different congruent marks), triangle NLM is not congruent to triangle MQP.
Instead, triangles NLM and QPM are congruent.
This could true because of the markings of the triangles' sides and angles are in the same location.
But the statement labeled the lines wrong which makes them False