Answer: 300 miles,....
A company currently uses Brand A lightbulbs, which have a mean life of 1,000 hours. A salesperson marketing Brand B, a new brand of bulb, contacts the company. The company will switch to the new brand of bulb only if there is convincing evidence that the mean life of Brand B is greater than 1,000 hours. Which of the following hypotheses should the company test?
A. H0: The mean life of Brand B is 1,000 hours.
H1: The mean life of Brand B is more than 1,000 hours
B. H0: The mean life of Brand B is 1,000 hours.
H1: The mean life of Brand B is less than 1,000 hours
C. H0: The mean life of Brand A is 1,000 hours.
H1: The mean life of Brand A is more than 1,000 hours
D. H0: The mean life of Brand A is 1,000 hours.
H1: The mean life of Brand A is less than 1,000 hours
E. H0: The mean life of Brand A is equal to the mean life of Brand B bulbs
H1: The mean life of Brand A is not equal to the mean life of Brand B bulbs
The hypotheses of the company are:
H0: The mean life of Brand A is 1000 hoursH1: The mean life of Brand B is more than 1000 hoursHow to determine the hypothesesThe hypotheses consist of the null and the alternate hypotheses
The null hypothesis is always represented by the equal to "=" sign.
So, the null hypothesis is:
H0: The mean life of Brand A is 1000 hours
From the question, we understand that the evidence is to show that the mean life is greater than Brand B.
So, the alternate hypothesis is:
H1: The mean life of Brand B is more than 1000 hours
Read more about null and alternate hypotheses at:
https://brainly.com/question/15980493
Rewrite using the distributive property.
Answer:
[tex]8b+56[/tex]
Step-by-step explanation:
Given the following question:
[tex]8(b+7)[/tex]
To rewrite any expression using the distributive property we have to multiply the number outside of the paratheses to the numbers/variables within the paratheses.
[tex]8(b+7)[/tex]
[tex]8\times b=8b[/tex]
[tex]7\times8=56[/tex]
[tex]8b+56[/tex]
Your answer is "8b + 56."
Hope this helps.
Which inequality represents the statement A final grade of at least 90?
A. x < 90
B. x >90
C. x < 90
D. x > 90
Answer:
B. x>90
Step-by-step explanation:
please make be the part of brainly
Write an equation in slope intercept form of the line that passes through the points (-5,4) and (5,0)
Answer: y=-0.4x+2
Step-by-step explanation:
what is the interquartile range (IQR) of the data set represent by this box plot
Answer:
IQR=Q3-Q1
73-51=22
Answer:22
Step-by-step explanation:
Brooke and Aria ran a half marathon. Brooke finished in 1 hour 55 minutes.
Aria finished in 105 minutes. Who had the faster time?
Answer:
aria
Step-by-step explanation:
105min=1 hour and 45 min
Step-by-step explanation:
Brooke and Aria ran a half marathon. Brooke finished in 1 hour 55 minutes. Aria finished in 125 minutes. who had the faster time. ANSWER IS BROOK 1 hr 55 minutes Aria 125 minute=2 hrs in case question is worded differently Edmentum
Rearrenge the letters to form new word (math related) and then in one word or a phrase define/describe it 1. LURE ______ 2. SMERT______ 3. IFEINT ______ 4. IAMNOD______ 5. RANGERA_______ 6. REPTANT_______ 7. TINIFINE________ 8.UNQUEENS_______ 9. SECTIONCUVE_______ 10. COACHINGLALOR_________
Answer:
1. RULE - A wood for taking length measurements
2. TERMS - Parts of an expression or series
3. FINITE - Countable
4. DIAMOND - Also known as a rhombus
5. ARRANGE - Place a given number of terms in order
6. PATTERN - Repeating sequence
7. INFINITY - Continuous indefinitely
8. SEQUENS - (in et sequens) And the next
9. CONSECUTIVE - Numbers arranged such that they follow each other and having no gaps
10. ICONOGRAPHICAL - (the P was added to find a closely related word) Interpretation and description of images
Step-by-step explanation:
I will mark brainliest for the first person to answer my question
The whole angle = the sum of the parts
80 = 43 + x
OR
x = 80 - 43
Hope this helps!
You want to put edging around your above ground rectangular pool. The dimensions of the pool are 20ft by 25ft. How many feet of edging do you need to purchase to surround the pool?
Answer:
90 ft
Step-by-step explanation:
perimeter = 2L + 2W
2(20) + 2(25)
40 + 50
90 ft
how many square feet of outdoor carpet will we need for this hole 11ft 2ft 3ft 6FT 7FT
A triangle has one leg of 24 inches and one leg of 10 inches. For the triangle to be a right triangle, what must be the length of the hypotenuse
Answer: 26 inches
Step-by-step explanation:
The hypoteneuse is the longest side in a triangle. From the question, we are already informed that a triangle has one leg of 24 inches and one leg of 10 inches.
To calculate the hypotenuse, we add the square of both legs together which are the opposite and adjacent and then find the square root. This will be
hypotenuse² = 24² + 10²
hypotenuse² = 576 + 100
hypotenuse² = 676
hypotenuse = ✓676
hypotenuse = 26
The hypothenuse is 26 inches
Melisande collected 14 bottles on Saturday and 9 bottles on Sunday for recycling. On Monday, she took all the bottles to the recycling center, where they paid her a certain amount, b, for each bottle. However, she had to pay the recycling center a one-time service fee of $0.25. If she left there with $3.20 for the bottles, what is the value of b?
Answer: The value of b is $0.15.
Step-by-step explanation:
Total bottles co0llected = 14+9 =23
Payment for each bottle = b
Total payment she will get = 23b
One -time service fee = $0.25
She has left = $3.20
According to the question,
23b - 0.25 = 3.20
⇒23b = 3.20+0.25
⇒23b = 3.45
⇒b = 0.15 [divide both sides by 23]
Cost of each bottle = $ 0.15
hence, the value of b is $0.15.
Answer:
B. $0.15
Step-by-step explanation:
find the product of the given polynomial if p(X)=2x-3 and g(X)=6x+4
Answer:
Given,
p (x)=2x-3
g (x)=6x+4
p (x)×g (x)=?
Step-by-step explanation:
p (x)×g (x)=(2x-3)(6x+4)
=2x (6x+4)-3 (6x+4)
=12x^2+8x-18x-12
=12x^2-10x-12
does someone know this? help me pls!!!!!!!!!!!!!!!!!!!!!!!!!!!
Which number below best represents a temperature of 28 1/3 degrees below zero?
A. 28 1/3
B. -31 1/3
C. 31 1/3
D. -28 1/3
a lecturer wants to divide a class of 18 students into 3 groups, each of 6 students, to do 3 different statistical projects.
(a) If there are 3 girls in the class, find the number of ways that there is one girl in each group
PLS HELPPPP
Answer:
The lecturer has to divide the class into 3 groups of 6 which have 1 girl in each group to have 1 girl in each class.(sry if this sounds a little akward didn't have enough time to type this answer out).
A plane flies 35 km in the direction N 30° W, then flies 60 km in the direction N 60° E. How far is the plane from its original location? 29. 64 km 58. 21 km 69. 46 km 93. 66 km.
Check the picture below.
For which of the following scatterplots is the correlation between x and y closest to −1 ?
Answer:
Scatter plot attached below.
Step-by-step explanation:
The correlation coefficient is a statistical degree that computes the strength of the linear relationship amid the relative movements of the two variables (i.e. dependent and independent).It ranges from -1 to +1.
If there is any alteration in the value of one variable, the value of the other variable is altered in a fixed proportion. The correlation amid them is known as perfect correlation.
In statistics, a perfect positive correlation is represented by +1 and -1 indicates a perfect negative correlation.
Negative correlation is a relationship amid two variables in which one variable rises as the other falls, and vice versa.
The scatter plot for the correlation between x and y closest to −1 is attached below.
nadia bought 4.3 pounds of ham on tuesday and 1.7 pounds of ham on wednesday. she spent a total of 41.94. what was the price of the ham per pound
Answer:
B) $6.99
Step-by-step explanation:
Write the equation, in standard form, of the line passing through (0,-8) with a slope of -1/2
Answer:
The answer is
[tex] \huge \boxed{y = - \frac{1}{2} x - 8 }[/tex]
Step-by-step explanation:
To find an equation of a line given the slope and a point we use the formula
[tex]y - y_1 = m(x - x_1)[/tex]
where
m is the slope
( x1 , y1) is the point
From the question the point is (0,-8) and slope - 1/2
We have
[tex]y + 8 = - \frac{1}{2} (x - 0) \\ y + 8 = - \frac{1}{2} x \\ y = - \frac{1}{2}x - 8[/tex]
We have the final answer as
[tex]y = - \frac{1}{2} x - 8 \\ [/tex]
Hope this helps you
What is the equation of the line that passes through the point (-3,2) and has a slope of -3
Answer:
y=-3x-7
Step-by-step explanation:
y=mx+b
m=-3
-3 • -3 + b = 2
b = -7
help pls first correct answer gets brainleist
Evaluate the expression,
if x = 9, y = 3, and z = 5.
z2•(x-y)
Answer:
The answer should be 150
Step-by-step explanation:
5 2 . (9-3)
5 2 . (6)
25.(6)
=150
You have to follow PEMDAS.
Parentheses
Exponents
Multiply
Divide
Add
Subtract
You and your brother walkie talkies to use outside. The range of the walkie talkies only covers a circular area with a radius of 3 feet. How many feet of coverage will the walkie talkies get before you lose contact?
Answer:
6 feet
Step-by-step explanation:
Because diameter=radiusx2
6 feet=3 feetx2
Angelo, age 40, is comparing the premium for a $125,000 whole life insurance policy he may take now and the premium for the same policy taken out at age 45. the annual life insurance premium (per $1000 of face value) for a 40-year-old male is 22.60 and for a 45-year-old male is 27.75. what would be the difference in total premium costs over 20 years for this policy at the two age levels? a. $69,375 b. $11,725 c. $12,875 d. $644
The difference in total premium costs over 20 years at the two age levels is $12875.
What is face value?Face value is a term used to describe the nominal value of a security, as stated by its issuer.
Let us consider the entire scenario for a 40-year old male.
Annual life insurance premium per 1000 of face value = $22.60
So, the annual life insurance premium for a $125,000 whole life insurance policy = 125000/1000 * 22.60 = $2825.
For 20 years the premium will be = 2825*20 = $56500
Let us consider the entire scenario for a 45-year old male.
Annual life insurance premium per 1000 of face value = $27.75
So, the annual life insurance premium for a $125,000 whole life insurance policy = 125000/1000 * 27.75 = $3468.75
For 20 years the premium will be = 3468.75*20 = $69375
The difference in total premium costs over 20 years = 69375-56500 The difference in total premium costs over 20 years = $12875
Therefore, The difference in total premium costs over 20 years at the two age levels is $12875.
To get more about face value visit:
https://brainly.com/question/24320257
Answer: c. $12,875
have a lovely day/night everyone <3
An object is moving at 50 feet per second. A car is trying to keep pace with the object. Which Statements are true?
Answer:
what are the statements?
Step-by-step explanation:
Answer:
A. Use 50ft/1 sec × 60sec/1 min×60min/1hr×1hr/5280ft to determine the car's required speed.
D. The car needs to travel at about 34 mph
Step-by-step explanation:
Which function is the inverse of Ax) = (x – 3)^3 + 2?
OA. 1-1,5) = V – 2 + 3
OB. 1-1,2)=x + 3 - 2
OC. 1-1,4)= x + 2 - 3
OD. 1-15)= - 3+ 7
The equation 4(3h - 2) = 3(5 + 4h) has
solution(s).
it says to evaluate and reduce, i can't find the answer
Answer:
[tex]\frac{28}{3}[/tex]
Step-by-step explanation:
When dividing fractions, we must always remember a very important step:
we can multiply the two fractions instead of divide as long as the second fraction must be flipped opposite as a reciprocal.
Let me explain:
When given a simple problem like [tex]\frac{1}{2}[/tex] ÷ [tex]\frac{2}{3}[/tex] , we flip the second fraction (called reciprocal) and multiply it together instead.
[tex]\frac{1}{2} * \frac{3}{2}[/tex]
There, we can just multiply the numerators with each other and the denominators as each other.
1x3=3
2x2=4
Therefore, the answer will be [tex]\frac{3}{4}[/tex].
Similar in this case, we must flip the second fraction and pretend we never even saw a division sign (because who likes dividing anyways?)
[tex]\frac{35}{5}[/tex] ÷ [tex]\frac{-3}{4}[/tex] flip and multiply reciprocal
[tex]\frac{35}{5} * \frac{-4}{3}[/tex]
[tex]\frac{140}{15}[/tex] simplify
[tex]\frac{28}{3}[/tex] final answer!
In what quadrant is the ordered pair (6, -4) located?
II
I
IV
III
Answer:
IV
Step-by-step explanation:
plot it on a graph and it lands in the bottom right of a graph which is the fourth quadrant
Answer:
plot twist my phone and I have a great day to be a great day to be a great day to
Step-by-step explanation:
he was a great day to be a great day to be a great day to be a great day to be a great day to be in the world and I am not a good day and I love
Question in picture.
Answer:
x = -9
-2 x -9 = 18
18 + 7 = 25