Answer:
No, it doesn't indicate that the insurance claims of single people under the age of 25 is higher than the national percent reported by the large insurance company
Step-by-step explanation:
Let's first state the hypotheses.
Null hypothesis; H0: p = 0.68
Alternative hypothesis; Ha: p > 0.68
A random sample of 53 claims showed that 41 were made by single people under the age of 25.
Thus; p^ = 41/53 = 0.7736
Let's find the test statistic from the formula;
z = (p^ - p_o)/√(p_o(1 - p_o)/n)
z = (0.7736 - 0.68)/√(0.68(1 - 0.68)/41)
z = 0.0936/0.07285
z = 1.28
From online p-value from z-score calculator, using z = 1.28, one tail hypothesis and significance level of 0.05,we have;
P(z > 1.28) = 0.100273
The p-value gotten is greater than the significance value and so we fail to reject the null hypothesis and conclude that there is insufficient evidence to support the claim.
Help please serious answers only
Step-by-step explanation:
1 Use the Quadratic Formula.
x=\frac{2+2\sqrt{14}\imath }{30},\frac{2-2\sqrt{14}\imath }{30}
x=
30
2+2
14
,
30
2−2
14
2 Simplify solutions.
x=\frac{1+\sqrt{14}\imath }{15},\frac{1-\sqrt{14}\imath }{15}
x=
15
1+
14
,
15
1−
14
Done
Kennedy made 12 3/8 cups of tea. She and her friends drank 7 1/4 cups. How much was left?
Answer: 5 1/8 cups
Step-by-step explanation:
Make 1/4 to 2/8 the. Subtract 3/8 by 2/8
1/4 = 2/8
3/8 - 2/8 = 1/8
Then subtract 12 and 7
12 - 7 = 5
Finally add 5 and 1/8
5 + 1/8 = 5 1/8 cups
A BRANLIST PLEASE HELP MY HEAD HURTS ....MATH
Answer: I think it might be negative
Step-by-step explanation:
which ratios make up a proportion
Answer:
2nd option
Step-by-step explanation:
The ratios on both sides must be equal
[tex]\frac{15}{6}[/tex] ( divide numerator/ denominator by 3 )
= [tex]\frac{5}{2}[/tex] ≠ [tex]\frac{3}{2}[/tex] , then not a proportion
[tex]\frac{4}{5}[/tex] ( multiply numerator/ denominator by 3 )
= [tex]\frac{12}{15}[/tex] , this is a proportion
[tex]\frac{9}{21}[/tex] ( divide numerator/ denominator by 3 )
= [tex]\frac{3}{7}[/tex] ≠ [tex]\frac{6}{7}[/tex] , then not a proportion
[tex]\frac{10}{16}[/tex] ( divide numerator/ denominator by 2 )
= [tex]\frac{5}{8}[/tex] ≠ [tex]\frac{2}{8}[/tex] , then not a proportion
Answer:
1. 18/8
2. 16/20
3. 15/28
4. 12/24
Solve the system of equations.
2x-y =7
1x-y = 10
Answer:
(-3, -7)
Step-by-step explanation:
2x - y = 7 multiply by -1 ⇔ -2x + y = -7
1x - y = 10 Do not change ⇔ 1x - y = 10
-x = 3
x = -3
Use the second equation to solve on y when x = -3
-1x - y = 10
-1(-3) - y = 10
3 - y = 10
-y = 10 - 3
-y = 7
y = -7 Solution: (-3, -7)
g(x) = 3x + 1; Find g(7)
Answer:
22
Step-by-step explanation:
g(x) = 3x + 1
g(7) = 3(7) + 1
= 21 + 1
= 22
hope this helps! :D
have a miraculous day!! <3
Help help help math
Answer:
C ≈ 54
Step-by-step explanation:
The circumference (C) is calculated as
C = πd ( d is the diameter )
Here d = 18 , then
C = π × 18 ≈ 3 × 18 = 54
Tutorial
At a T-shirt stand on the boardwalk, 5 of the last 15 shirts sold were gray. Considering this
data, how many of the next 12 shirts sold would you expect to be gray?
shirts
Convert 4 weeks to days.
O A. 28 days
O B. 29 days
O c. 31 days
O D. 30 days. I will mark brainiest hurry
There are 28 days in 4 weeks.
What are mathematical operations?The term "operation" in mathematics refers to the process of computing a value utilizing operands and a math operator. For the specified operands or integers, the math operator's symbol has predetermined rules that must be followed. In mathematics, there are five basic operations: addition, subtraction, multiplication, division, and modular forms.
There are 7 days in a week, so to convert weeks to days, we multiply the number of weeks by 7. For example, if we have 2 weeks, we would multiply 2 by 7 to get 14 days.
In this case, we are given 4 weeks and asked to convert it to days. So we multiply 4 by 7 to get:
4 x 7 = 28
Therefore, there are 28 days in 4 weeks.
Learn more about Mathematical operations here:
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Three years ago Atul's age was four times Parul's age. After 5 years from now, Atul's age will be two times Parul's age. Find their present ages.
Answer:
Parul's age=7 years
Atul's age=19 years
Step-by-step explanation:
Let present age of Parul be x
Let present age of Atul be y
3 years ago
Parul's age=x-3
Atul's age=y-3
5 years after
Parul's age=x+5
Atul's age=y+5
According to question
y-3=4(x-3)
y-3=4x-12
y-4x+9=0.....(1)
y+5=2(x+5)
y+5=2x+10
y-2x-5=0......(2)
from(1),y=4x-9
Put y in (2)
4x-9-2x-5=0
2x-14
2x=14
x=7
y=19
Parul's age=7 years
Atul's age=19 years
Given: RS is the perpendicular bisector of AB
Prove: RA ≅ RB
Answer:
See answer below
Step-by-step explanation:
RS ⊥ bisector of AB Given
AS ≅ BS Definition of ⊥ bisector
∠RSB is a right angle Given
∠RSB = 90° Definition of right angle
∠RSB & ∠RSA form a linear pair Definition of linear pair
∠RSB + ∠RSA = 180 A linear pair = 180°
90° + ∠RSA = 180° Substitution
∠RSA = 90 Subtraction
∠RSB = ∠RSA Substitution
∠RSB ≅ ∠RSA If equal then congruent
RS ≅ RS Reflexive
Δ RAS ≅ ΔRBS SAS
RA ≅ RB CPCTC (corresponding parts of
congruent triangles ≅
100 points and only highly intelligent persons are qualified
What is the equation for finding the value of √x. I need to be able to put x into the equation and result in the square root.
You can solve it by using this steps
Step-by-step explanation:
Isolate the radical on one side of the equation.Square both sides of the equation.Solve the new equation.Check the answer. Some solutions obtained may not work in the original equation.
Answer:
It's probably 12
Step-by-step explanation:
100+100=200
200+100=300 divided by 10 is 12
Can someone please help me with this question
Step-by-step explanation:
please mark me as brainlest
The total cost of renting a beach
house is a function of the number of
days the house is rented. The
owner of the beach house charges
$375 per day up to a maximum of 7
days plus a $100 cleaning fee. What
is the greatest value in the range for
this situation?
Answer: 147 votes
Beacause they need to find out what to do with the beach house
The greatest value in the range for this situation is $2,675.
What is a function?A function has an input and an output.
A function can be one-to-one or onto-one.
It simply indicated the relationships between the input and the output.
Example:
f(x) = 2x + 1
f(1) = 2 + 1 = 3
f(2) = 2 x 2 + 1 = 4 + 1 = 5
The outputs of the functions are 3 and 5
The inputs of the function are 1 and 2.
We have,
Let the number of days the beach house is rented be represented by the variable "d".
If d is less than or equal to 7, then the total cost can be calculated as:
Total Cost = 375d + 100
If d is greater than 7, then the maximum cost would be reached by renting the house for 7 days and adding the $100 cleaning fee.
In this case, the total cost can be calculated as:
Total Cost = 375(7) + 100 = 2,675
Therefore,
The greatest value in the range for this situation is $2,675.
Learn more about functions here:
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I am on my knees begging for help i will mark brainlist please hear my cries
Part A: Which of the following pairs of coordinates would represent the missing values in the table?
options:
(3, $2560) & (4, $2048)
(3, $640) & (4, $128)
(3, $2560) & (4, $512)
(3, $640) & (4, $512)
Question 6 (4 points)
Part B: Write an equation that can be used to find the value of the piano, v, after t years
Answer:
Part A would be: 3, $2560 & 4, 2048 I am pretty sure
Step-by-step explanation:
20% of 3,200 = 640
3,200-640= 2,560
then
20% of 2,560 = 512
2,560-512 = 2,048
hope this helps! :)
Part A: The first answer is correct, or (3, $2560) & (4, $2048)
Part B: V = 5,000(0.8)^t
5000 is the original price, 0.8 shows the value going down 20%, and t shows how many years.
Hope this helps!
hey i really need help its 11:32 where I am and this assignments due at 12:00
please!!!!
Answer:
3: 67 5:200% 6: 50% 7: 32 8) 20
Step-by-step explanation:
Given Polynomial:
5x-4x^2+3
Solve for x=0
[tex]\huge \rm༆ Answer ༄[/tex]
Plug the value of x as 0 in the given Polynomial ~
[tex] \sf5x - 4 {x}^{2} + 3[/tex][tex] \sf(5 \times 0) - (4 \times 0 {}^{2} ) + 3[/tex][tex] \sf0 - 0 + 3[/tex][tex] \sf3[/tex]Therefore , the equivalent value is 3
The following is a linear inequality: y<6x-4
In the graph, will the line be solid or dashed?
1: Solid
2: Dashed
Answer:
it maybe solid
hope I'm correct if not then I'm sorry but I'm pretty sure it is solid
12. Which of the following transformations will produce a similar, but not congruent figure?
A. dilation
B. reflection
C. rotation
D. translation
Answer:
A
Step-by-step explanation:
Bc I m smorrt
b89a4ed3c54f7a92e4c4c9dc4
3283b6a.jpeg
Find the area of the shape shown below.
Answer:
28 units.
Step-by-step explanation:
Area of square + Area of triangle + Area of rectangle = Area of figure shown
=> (4 x 4) + (1/2 x 4 x 2) + (2 x 4) = Area of figure shown
=> 16 + 4 + 8 = Area of figure shown
=> 28 = Area of figure shown
Therefore, the area of the figure is 28 units.
Hoped this helped.
Answer:
28 units.
Step-by-step explanation:
Act like the shape is just a normal rectangle, because thats easy to do. If it was a full rectangle the length would be 8 and the width would be 4. The formula for finding area of a rectangle is length times width so 8x4 is 32. Now, to find the actual area of the shape, you have to subtract a bit. (I'll add a picture to better explain what I am meaning) You imagine see a mini rectange in the corner with a length of 4 and a width of 2. The area for that is 8. But, only half of that imaginary rectangle is in the actual shape so subtract half of that shape (4) from the original 32 and you get 28. The area is 28 units.
i need help on this assignment
solve the equation on the interval [0,2pi)
can someone please explain and help me with this problem
Wort out: 8 divided by 2/3
Answer:12
Step-by-step explanation:
Helpp
10.
9.
7 ÷
7x
7 mi
=
=
1
3
gal
1-0 0-0
O
miles per gallon
Answer:
21mi/gnStep-by-step explanation:
7mi/1/3gncalculate the product7mi/gn/3simplify the complex fraction
So the answer is=21mi/gnHope it helpsAdam eats 2 apples in 5 minutes, at this rate how many apples will Adam eat in a hour?
6
10
24
120
Answer:
24 apples
Step-by-step explanation:
60 divided by 5 is 12 then you multiply 2 which is 24:)
-3/10 + 4/15
Solve the above problem
Answer:
-1/30
Step-by-step explanation:
find the lcm of 10 and 15
then solve it
Solve. 2/3x+5/6=3 1/3 Enter your answer as a mixed number in simplest form in the box.
Answer:15/4 I think
Step-by-step explanation:sorry I don’t know
Answer:
3 3/4
Step-by-step explanation:
Hope this helps!
Brainliest pls
Have a great day!
Find the equation of the line that
is parallel to y = 5x – 4 and
contains the point (4,5).
Answer:
y = 3+1/2
that should be the answer
What coordinates should she assign to the top-right vertex if the rectangle?
Find the product and simplify answer -2a^2(5a^2 - 5a + 5)
[tex] \: \: \: \: \: [/tex]
[tex] = \: \: 10 {a}^{4} + 10 {a}^{3} - 10 {a}^{2} [/tex]
refer to the attachment for explanationhope it helps ~♪