Can someone plz help me on this thank you and please stop giving me links
Answer: 900π
Step-by-step explanation: To calculate the area of a circle, we do πr^2, where r is the radius. The radius is 30, so the answer is 900π.
Hope this helps!
At a recent meeting, the manager of a national call center for a major Internet bank made the statement that the average past-due amount for customers who have been called previously about their bills is now no larger than $20. Other bank managers at the meeting suggested that this statement may be in error and it needs to be tested. The file called Bank Call Center attached below, contains data for a random sample of 67 customers from the call center population. What should be conducted based on the sample data? Test using α = 0.10
Answer:
As the calculated z does not fall in the critical region we fail to reject H0 and conclude that there is sufficient evidence that the average past-due amount for customers who have been called previously about their bills is now no larger than $23.
Step-by-step explanation:
As the standard deviation for the past due amounts is 63
The sample size n= 67
1) Formulate the null and alternate hypothesis
H0: u ≤ 23 against the claim Ha: u > 23
2) The test statistics is
Z= x- u / σ/ √n
z= 20- 23/ 63/ √67
z= 0.00581
z= 0.006
3) The significance level ∝= 0.1
4) The critical value for ∝= 0.1 is Z > ±2.33
5) As the calculated z does not fall in the critical region we fail to reject H0 and conclude that there is sufficient evidence that the average past-due amount for customers who have been called previously about their bills is now no larger than $23.
In the figure, the measure of angle 6 6 is 141° 141 ° . What is the measure of angle 5 5 ?
Answer:
131° 131°=5 5 is the measure for 5 5
Answer: 181
Step-by-step explanation: i got it right on imagine math and the person above me is correct
ur pretty and perfect! Have a great day!
x² + x = 12
show the steps please
Answer:
x1 = -4
x2 = 3
Step-by-step explanation:
[tex]x^{2} + x = 12\\x^{2} +x-12=0\\x^{2} +4x-3x-12=0\\x*(x+4)-3(x+4)=0\\(x+4)*(x-3)=0\\x+4= 0 \\x-3=0\\x=-4 \\x=3\\x1=-4 \\x2=3[/tex]
Step-by-step explanation:
=> x² + x = 12
=> x² + x -12 = 0
=> x² + 4x - 3x -12 = 0
=> x ( x + 4)-3(x + 4) = 0
=> ( x + 4)(x-3)=0
=> x = 3 , -4
Sarah and Mike have 59 ounces of almonds. They want to share these almonds equally with each other and 6 more friends. The number of ounces of almonds each person will get is between which two whole numbers?
3 and 4
6 and 7
7 and 8
8 and 9
please show work
the answer is between 7 and 8
Hi, please help and explain, is it c?
Answer:
It's option A
change the answer
Answer:
its a so yeah
Kyle ordered 7 large pepperoni pizzas from Wild Bill's Pizza, and he used the coupon shown above. If the total bill, after kyle used the coupon, was $82.50, what was the regular price of 1 pizza?
Answer:
Regular price of 1 pizza = $15 {Assuming discount coupon = $22.5}
Step-by-step explanation:
Let regular non discounted price of 7 pizzas be x
x - 22.5 = 82.5
x = 82.5 + 22.5
x = 105 (Regular Non discounted price of 7 pizzas)
Regular Price of 7 pizzas = 105
Regular price of 1 pizza = 105 / 7 = 15
In a tennis club the ratio number of junior members : number of senior members is
7 : 10. There are 18 more senior members than junior members. Find the total amount of club members.
Answer:
35 members
Step-by-step explanation:
In a tennis club the ratio number of junior members : number of senior members is 7 : 10
From the above ratio
Number of junior member = 7
Number of senior members = 10
There are 18 more senior members than junior members.
S = 18 + j
10 + 18 = 28 senior members
Hence,
Total number of members = 28 senior members + 7 junior members
= 35 members
Which set of side lengths create a right triangle ?
A(10,28,and 29)
B(6, 8,and 13)
C(7, 12 and 14)
D( 8 , 15 and 17)
Answer:
(8, 15 and 17)
Step-by-step explanation:
[tex]\sqrt{10^{2} +28^{2} } \neq 29[/tex]
[tex]\sqrt{6^{2} +8^{2} } \neq 13[/tex]
[tex]\sqrt{7^{2} +12^{2} } \neq 14[/tex]
[tex]\sqrt{8^{2} +15^{2} } =17[/tex]
Tammys fish tank 18 liters of water in it. She plans to add 5 liters per minute until the tank has at least 63 liters. What are the possible numbers of minutes Tammy could add water?
Step-by-step explanation:
Hi,
63 = 5x + 18 represents this situation.
63 = 5x + 18
45 = 5x
9 = x
So, the possible number of mins are 1, 2, 3, 4, 5, 6, 7, 8, and 9.
You can also write this as x ≤ 9
I hope this helps :)
Someone plz help meee plz giving brainliest
Answer:
A) is the answer
Step-by-step explanation:
9.6
The function f is defined by f(x) = x^2-2x-24
if f (x + 3) = x^2+kx-21, what is the value of k?
Step-by-step explanation:
my guess it's 4
(x+7) (x-3)
The value of k for which f(x + 3) = x^2+kx-21 for the considered function f(x) is found to be k = 4
How to evaluate a given mathematical expression with variables if values of the variables are known?You can simply replace those variables with the value you know of them and then operate on those values to get a final value. This is the result of that expression at those values of the considered variables.
It is given that:
[tex]f(x) = x^2 -2x - 24[/tex]
and [tex]f(x+3) = x^2 + kx - 21[/tex]
Putting x = x+3 in the definition of f(x), we get:
[tex]f(x+3) = (x+3)^2 -2(x+3) -24\\\\f(x+3) = x^2 + 6x + 9 -2x -6 - 24\\\\f(x+3) = x^2 + 4x -21[/tex]
Comparing it with [tex]f(x+3) = x^2 + kx - 21[/tex], we see that k is having value as 4 for the considered function.
Thus, the value of k for which f(x + 3) = x^2+kx-21 for the considered function f(x) is found to be k = 4
Learn more about evaluating a function at a value here:
https://brainly.com/question/2753269
Which value for x makes this sentence true? ( 8th Grade math )
Answer:
C. x = 5
Step-by-step explanation:
[tex]2x - 1 = 9[/tex]
[tex]2x = 9 + 1[/tex]
[tex]2x = 10[/tex]
[tex]x = 5[/tex]
Plz help me I’m confused
Answer:
-10 minor -7 minor -1 minor +3
Step-by-step explanation:
first one: (14+6)/(-4+2)= -10
second one: (8+4)/(-9-3)=-1
third one: (3+4)/(3-4)= -7
last one: =+3
Find the sum of the first 59 terms of the arithmetic sequence.
49, 56, 63, 70, ...
What is the sum of the first 59 terms?
Answer:
its 56
Step-by-step explanation:
someone please help.
Given,
Length = x+7
Breadth = x+5
We know that,
Area of rectangle = length × breadth
So, area of the given rectangle
= (x+7)(x+5)
= x² + 5x + 7x + (7×5)
= x² + 12x + 35
I AM SORRY BUT HELP ME!!!!
Bill has 5 liters of water to pass out to his teammates at the basketball game. If one player drinks 1000 milliliters, two players drink 500 milliliters, and another player drinks 2000 milliliters, how much water does Bill have left at the end of the game?
A. 1,000 liters
B. 2 liters
C. 10,000 liters
D. 1 liter
Answer:
D. 1 liter
Step-by-step explanation:
1000 milliliters = 1 liter
Player 1: 1000 ml or 1 liter
Player 2: 500 ml or .5 liter
Player 3: 500 ml or .5 liter
Player 4: 2000 ml or 2 liter
Add: 1 + .5 +.5 +2 = 4
Subtract: 5 - 4 = 1
Answer: You have 1 liter left
A USA Today poll asked a random sample of
1012 U.S. adults what they do with the milk
in the bowl after they have eaten the cereal
Let be the proportion of people in the
sample who drink the cereal milk A
spokesman for the dairy industry claims that
70% of all US adults drink the cereal milk
Suppose this claim is true.
Find the standard deviation of the sampling
distribution of p
Answer: 0.0188
Step-by-step explanation:
Using the Central Limit Theorem, it is found that the standard deviation of the sampling distribution of p is 0.0144.
Central Limit TheoremBy the Central Limit Theorem, the sampling distribution of sample proportions of a proportion p in a sample of size n has mean [tex]\mu = p[/tex] and standard deviation [tex]s = \sqrt{\frac{p(1 - p)}{n}}[/tex].In this problem:
Suppose that 70% of all US adults drink the cereal milk, hence [tex]p = 0.7[/tex].A sample of 1012 adults is taken, hence [tex]n = 1012[/tex].Then, the standard deviation is:
[tex]s = \sqrt{\frac{p(1 - p)}{n}} = \sqrt{\frac{0.7(0.3)}{1012}} = 0.0144[/tex]
The standard deviation of the sampling distribution of p is 0.0144.
To learn more about the Central Limit Theorem, you can take a look at https://brainly.com/question/16695444
compare these integers
-10_____ 1
A.<
B.=
C.>
Answer:
-10<1
which means that -10 is less than 1
Answer:
A
Step-by-step explanation:
-10 is smaller than 1 because all the negative numbers are less than 0 and all other positive numbers
20 apples cost R12.What will 16 of the apples cost?
Answer:
192
Step-by-step explanation:
you take 12 and multiple it by 16:
R12×16=R192
Which graph shows the solution set for 2x+3 >-g?
Answer:
2x + 3 > -9
2x > -12
X> -6
D
Step-by-step explanation:
and i hope this helps u because if it dont im dead
Step-by-step explanation:
2x+3>-g
= 2x>-9-3
= 2x>-12
=x>-6
it's was helpful to you
11. The rates for the following math tutoring services are listed below.
Tutoring Service Cost
Time
А
$50
45 minutes
B
$65
1 hour
C
$99
90 minutes
D
$90
2 hours
Which Tutoring Service charges the most per hour?
Answer: A
Step-by-step explanation:
A) 50/ 45 = 1.111....
B) 65/60 = 1.08333...
C) 99/90 = 1.1
D) 90/120 = .75
Answer:
A
Step-by-step explanation:
Divide each amount by the number of minutes to find the rate per minute. Then multiply by 60 to find the hourly rate. Then compare the hourly rates.
A
$50 / 45 min * 60 = $66.66/hour
B
$65 / 1 hour = $65/hour
C
$99 / 90 min * 60 = $66/hour
D
$90 / 2 hours = $45/hour
Answer: A
The subtotal of Noah's meal was $13.77. he also has to pay a 7% tax. How much will he for his meal? ( Round to the nearest cent) *
Answer:
14.37 is your answer for his meal, hope this helped. <3
Step-by-step explanation:
You have 13.77 then you add 7% then round it up.
Help me if u can thnx ✨✌️
Answer:
40/9
$189
Step-by-step explanation:
1 2/3 / 3/8 =
4 4/9 = 40/9
6.85 x 315 - 6.25 x 315 = $189
Hope that helps!
Answer:
ik gonna let u solve this question but I explained what u need to do to solve it
You are scuba diving at -8 feet. You dive 5 feet deeper. What is your position in the water?
Answer:
-13 feet
Step-by-step explanation:
Answer:
-13 feet
Step-by-step explanation:
We Start With -8 and we go 5 feet deeper so -8-5 is -13
1. A square pizza box has an area of 155 cm^2. Which is the best estimate of the side length of the pizza box?
A 12 B. 129 C. 124 D. 121
Answer:
C.) 12.4
Step-by-step explanation:
The square root of 155 needs to be found.
It's about 12.4498996.
Thinking that your options are supposed to be decimals, the closest rounded answer would be C.
please help with question 2
Answer:
K=3
Step-by-step explanation:
Substitute the X with 7.
-6x7+18=k(7-15)
Distribute and combine
-42+18= = -8k
Combine like terms
-8k= -24
K= 3
Answer:
The answer is k=3
Seth wants to buy a helmet as well. A new helmet costs
$46.50. Seth thinks he can work 6 hours on Saturday to
earn enough money to buy the helmet. Is he correct?
Lexi just registered for her wedding. So far 6 items have been fulfilled on her registry. Find the mean price of the items on her registry. $29, $58, $15, $129, $75, $22.
Group of answer choices
Answer:
Mean = $54.67
Step-by-step explanation:
How to Find the Mean
Add up all data values to get the sum
Count the number of values in your data set
Divide the sum by the count
The mean is the same as the average value in a data set.
Mean Formula
The mean x of a data set is the sum of all the data divided by the count n.
mean=x¯¯¯=∑ni=1xin
Solve
Add up all data values to get the sum
$29 + $58 + $15 + $129 + $75 + $22 = $328
Count the number of values in your data set
$29 and $58 and $15 and $129 and $75 and $22 = 6
Divide the sum by the count
328 ÷ 6 = 54.6666666667
Nearest tenth = 54.67
Therefore, the Mean = $54.67
what is the greatest common factor (GCF) of 88 and 132?
