Considering the situation given, it is found that:
The null hypothesis is [tex]H_0: \mu = 2000[/tex]The alternative hypothesis is: [tex]H_1: \mu > 2000[/tex].At the null hypothesis, we test if they average the same amount of trouble hours as last year, that is, of 2000 trouble hours, thus:
[tex]H_0: \mu = 2000[/tex]
At the alternative hypothesis, we test if this amount has increased, that is:
[tex]H_1: \mu > 2000[/tex]
A similar problem is given at https://brainly.com/question/23531534
12 can someone please explain this
Answer:
B = x = 44 degrees
Step-by-step explanation:
Interior angles of a triangle = 180 degrees.
There are 2 congruent sides so the angle to the right of 67 degrees is also 67 degrees
180 - 2(67) = 46 degrees (the third angle of the triangle)
x + 46 degrees = 90 degrees ( complementary angles)
x = 44 degrees
please helpp I'll give brainiest
Answer:
q + q + 4
Step-by-step explanation:
q + q +4
6 383 to the nearest hundred ?
6,400 is the nearest hundred
I need help solving #9 & #11! It's geometry but I'm just really stuck
Answer:
9)x=11 y=3
11)x=18 y=5
Step-by-step explanation:
9) 9x+25=13x+19 13x-19+17y+5=180
9x+44=13x 129+17y=180
44=4x 17y=51
11=x y=3
11) 49+3x=7x-23 3x=11y-1
One example of a mathematical model is an equation that describes the relationship between two quantities.
a. True
b. False
Answer:
True
Step-by-step explanation:
Linear equations are often used to model the relationship between the dependent variable that is affected by changes in the independent variable.
For instance, the linear function: f(x) = 2x + 3, where f(x) is the output (dependent variable) depends on the value of the input, x (independent variable).
Therefore, the correct answer is True.
A line with a slope of 2 passes through the point (-8, 2). What is its equation in
point-slope form?
Hello!
y-y1=m(x-x1)
y-2=2(x-(-8)
y-2=2(x+8)
And that's our equation in point-slope form. Hope this helps!
~Just a joyful teen
[tex]SilentNature\\(GraceRosalia)[/tex]
10(c–1)=80 i need help
Answer:
C =9
Step-by-step explanation:
10(c−1)=80
Step 1: Simplify both sides of the equation.
10(c−1)=80
(10)(c)+(10)(−1)=80(Distribute)
10c+−10=80
10c−10=80
Step 2: Add 10 to both sides.
10c−10+10=80+10
10c=90
Step 3: Divide both sides by 10.
10c
10
=
90
10
c=9
Find the difference in 14 5/10 - 12 9/10 please
Answer:
1 3/5
Step-by-step explanation:
14 5/10 - 12 9/10
I like to line them up vertically
14 5/10
- 12 9/10
-----------------
We need to borrow from the 14. 14 becomes 13 and the 1 becomes 10/10
13 10/10+5/10
- 12 9/10
-----------------
13 15/10
- 12 9/10
-----------------
1 6/10
Simplify
1 3/5
you recieve a pay raise of 5% then recieve a pay cut of 5%. after the two changes in pay your salary is unchanged
Answer:
true
Step-by-step explanation:
False, receive a pay raise of 5% then receive a pay cut of 5%. after the two changes in pay, your salary is changed.
Given that,
To justify the given statement is false or true.
The percentage is the ratio of the composition of matter to the overall composition of matter multiplied by 100.
here,
let the salary be x,
Salary after 5% raise = 1.05x
Salary after cut of 5% = [1 - 0.05] [1.05x]
Salary after a cut of 5% = 0.9975x
So the salary becomes 99.75% of the original salary x.
Thus, the given statement is false, receive a pay raise of 5% then receive a pay cut of 5%. after the two changes in pay, your salary is changed.
Learn more about percentages here:
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Please help fast
What system of linear inequalities is shown in the graph?
Enter your answers in the boxes.
Answer:
I'm only able to see a black square instead of any image. Could you resend it?
2/3 = 4/x+3 what is x?
Answer:
-12/7
Step-by-step explanation:
2/3=4/x+3
2/3-3=4/x Subtract 3 from both sides
2/3-9/3=4/x Make them have a common denominator
-7/3=4/x
-7/3x=4
x=(4)/(-7/3)
x=[tex]\frac{-12}{7}[/tex]
Write an equation of the line in point-slope form that passes through the given points. (4,6) and (5,9)
Answer:
graph{x + 2 [-10, 10, -5, 5]}
Step-by-step explanation:
Lakeside amusement park charges an entry fee plus $1.50 per ticket used to go on the rides. The entry fee is the same amount for everyone. Louisa spent a total of $30.75 on the entry fee plus 15 ride tickets. Click “show your work” below and show calculations to determine how much Louisa paid for the entry fee.
Answer:
The entry fee is $8.25
Step-by-step explanation:
Total together: $30.75
She bought 15 tickets * $1.50 cost per 1 ticket
= $22.50
$30.75 (total) - $22.50 (price of tickets)= $8.25
okay now i rlly need this done man
Answer:
x=9.5
EDIT: Its actually x=6Step-by-step explanation:
Brainliest?PLEASE?Answer:
4
8
+
2
{\color{#c92786}{\frac{4x}{8}}}+2
84x+2
2
+
2
Step-by-step explanation: please mark brainliest
Please show the process of how you got your answer. Thank you! Much appreciated. :)
Answer:
The answer is 2a^3\sqrt11a
Step-by-step explanation:
Simplify the radical by breaking the radicand up into a product of known factors, assuming positive real numbers.
Answer:
2[tex]2\sqrt{11} a^{3} \sqrt{a}[/tex]
Step-by-step explanation:
Apply Radical rule: ([tex]\sqrt{ab}= \sqrt{a}\sqrt{b}[/tex])
Which gets you:
[tex]\sqrt{44a^{7} }=\sqrt{44}\sqrt{a^{7} }[/tex]
= [tex]\sqrt{44} \sqrt{a^{7} }[/tex]
Simplify and gets you the answer above
Find the measures of a right triangle with one angle whose measure is 30
Answer:
The other measure is 60º
Step-by-step explanation:
a triangle= 180º total
a right triangle has one 90º angle
there is a 30º angle given
180-90=90
90-30=60
so 60º
Which number is a constant in the algebraic expression?
Negative x squared minus 6 y + 13 x + 7
Negative 6
Negative 1
7
13
Answer:
Step-by-step explanation:
Answer:
7
Step-by-step explanation:
-x^2 -6y+13x+7
The constant is the term with no variable attached to it
7 is the constant
1
Mr. Johnson wants to fill up his car's gas tank. The car has a 25 gallon gas tank and there are 4 gallons of gas already in the tank. Gas costs $3.04 for each gallon. Mr. Johnson has $50 to spend on gas. Will he have enough money. Show your work and justify your answer.
Based on the cost of filling of the car, we can infer that Mr. Johnson does not have enough to spend on gas.
The car can take 25 gallons of gas and already has 4 liters inside it. The quantity of gas Mr. Johnson has to buy is:
= 25 - 4
= 21 gallons
The price of a gallon is $3.04. The price of 21 gallons would be:
= Price of gas x Number of gallons
= 3.04 x 21
= $63.84
In conclusion, Mr. Johnson does not have enough to spend on gas because he has only $50 yet the gas will cost $63.84.
Find out more at https://brainly.com/question/21060271.
Find the missing measure (simular figures)
Answer:
66m, 35in?, 12m, 2km, 26cm
Step-by-step explanation:
22/17 = 1.294x51 = 66m
7/3 = 2.333x15? = 35in not sure if the number on the pic is 15
18/12 = 1.5x8 = 12m
6/27 = .2222x9 = 2km
6.5/2.5 = 2.6x10 = 26cm
A rectangular painting's width is 2 inches more than twice
its length. The perimeter is 40 in. Find the dimensions.
maths giving 10 point asap 1 question only
Solve the following linear equations :
(i) x + 2 = 5x
→ 2 = 5x - x
→ 2 = 4x
→ x = 4/2
→ x = 2
(ii) 3(n - 1)/2 = n - 4
→ 3 × (n - 1)/2 = n - 4
→ 3n - 3/2 = n - 4
→ 3n - 3 = 2(n - 4)
→ 3n - 3 = 2 × (n - 4)
→ 3n - 3 = 2n - 8
→ 3n - 2n = -8 + 3
→ n = -5
▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄a board that is 4 1/2 feet long weighs 7 1/5 pounds how much would one foot of the board weigh? write your answer as a mixed number
DESPERATE PLEASE HELP WILL AWARD BRAINLIEST
Answer: 1 foot = 5/3 or 1.6666 pounds
Step-by-step explanation: to get 4 1/2 feet to one foot, you divide by 4 1/2. in this equation, 4 1/2 ft= 7 1/2 pounds. if you divide one side by 4 1/2, you also have to do the same to the other side. therefore you do 7 1/2 divided by 4 1/2 which will give you 1.6666 or 5/3.
1 foot= 5/3 pounds
in 2000 the population of India was around 1.053 billion , and in 2016 the population hit 1.327 billion people . if India's population continues to grow at this same rate in what year was the population of India reach 3 billion people.
Answer:
The population of India would reach 3 billion in about 112 years (year 2128)
Step-by-step explanation:
1. subtract 1.327 billion by 1.053 billion (1.327-1.053)
2. The answer you should get is 274,000,000 (two hundred seventy four million)
3. multiply 274,000,000 by 7 (amount of people required to reach about 3 billion)
4. add the product (ans to multiplication problem) to 1.327 billion. (you should get 3.245 billion (3245000000).
5. multiply 16 by 7 (16x7) to get the number of years to reach 3 billion (maybe 112)
6. Add the product to 2016
7. Therefore you get the year 2128.
Jimmy wants to enlarge a sign for his taco stand. He increases the height by a scale factor of 4 and the width by a factor of 2. What is the effect on the area of the sign? times greater
After the increase in the dimensions of the sign, the effect on the area of the sign is that the new area is 8 times larger than the initial area.
The sign has the shape of a rectangle. A rectangle has four sides. The opposite sides are equal in length.
The area of a rectangle = length x width.
Jimmy is making the sign bigger by increasing the size of the length and width. Let's imagine that the width is 8cm and the length is 10cm.
The initial area of the sign = 10 x 8 = 80 cm
After the increase in the dimensions, the length is are 40cm and 16cm for the width.
New area = 40 x 16 = 640
Number of times the new area is greater than the initial area = 640 / 80 = 8 times larger
A similar question was answered here: https://brainly.com/question/18452788
Answer Fast Plsssss please hellpppp me
Answer:
y = 2/3x
Step-by-step explanation:
Answer:
y=2/3m
Step-by-step explanation:
the slope, m, equals rise over run
the slope rises 2, then runs 3, making 2/3
Hope this helps!
what’s the mean of 8.3 9.1 8.1 8.7
Answer:
i don't know do you know
Step-by-step explanation:
A local catering
company is offering a
Spring BBQ special that
feeds 30 people for
$195. How much would it
cost to feed 50 people?
Enter the value of x. The diagram is not to scale.
680
119°
.70
Answer: 51
119=68+x => x=51
A cheetah runs 296 feet in 4 seconds. How far could a cheetah run in 10
seconds at this rate?
Answer:
740 feet
Step-by-step explanation:
The speed of the cheetah is 74 feet per second:
speed = distance ÷ time
= 296 ÷ 4 = 74 feet per second
In 10 seconds:
distance = speed × time
= 74 × 10
= 740 feet
Answer:
740 Feet
Step-by-step explanation:
Given: 296 ft= 4 sec
To Find: 10 sec = [tex]\left[?}\right][/tex] ft
First we need to Find How many feet are in 1 second.
To find that,
Do 296 divided by 4
=
74
So 1 second = 74 Feet.
Then 74 ft Times 10 second
Which gives you
740 Feet.
Therefore, at 10 second rate gives you 740 Feet.
Find the value of 19-b when b=7
Answer:
12
Step-by-step explanation: