Answer:
Correct option: b 39.
Step-by-step explanation:
A one-sample (or one mean) t-test is applied to test whether the population-parameter is significantly different from some hypothetical value.
The degrees of freedom of the t-test is:
df = n - 1
It is provided that the sample size is, n = 40.
Compute the degrees of freedom as follows:
df = n - 1
= 40 - 1
= 39
Thus, the correct option is b.
A company sold 33 bicycles for 315 dollars each how much revenue did it receive
Answer:
A
Step-by-step explanation:
Answer: $10395
Step-by-step explanation:
33 • 315 = 10395
help asap plsplspls!
Given:3x-4=8 prove x=4
Hi!
Okay, so to prove that x = 4, all you have to do is insert 4 into the equation by replacing x with 4.
3x-4=8
3(4)-4=8
Now solve:
12-4=8
8=8
This is true, so x does equal 4.
Which is the constant of proportionality for the relationship shown in the table?
Answer:
b
Step-by-step explanation:
plz helpppppppp me thxs
Answer:thxxxxxxs for the points
Step-by-step explanation:
Will make you brainliest!!! If correct!!
Answer:
Step-by-step explanation:
y = - [tex]\frac{1}{4}[/tex] x + 3 ( equation of line t )
y - (- 2) = - [tex]\frac{1}{4}[/tex] [ x - (- 2)] ⇒ y = - [tex]\frac{1}{4}[/tex] x - [tex]\frac{5}{2}[/tex] ( equation of line u )
(5x + 4) + (-8x - 2)
Answer:
-3x + 2
Step-by-step explanation:
(5x + 4) + (-8x - 2)
= 5x + 4 -8x - 2
combine like terms
-3x + 2
Given the following two equations determine if they are parallel, perpendicular, or neither.
3x + 6y = 30
4y + 2x = 9
Please show work!
Answer:
Parallel
Step-by-step explanation:
What you want to do first is to put both equations into the slope intercept form: y=mx+b.
In the first equation, you move the [tex]3x[/tex] to the right side of the equal sign by subtracting on both sides:
[tex]6y = -3x + 30[/tex]
Then you want to divide both sides by 6 to isolate y:
[tex]y = -\frac{1}{2}x + 5[/tex]
Next for the second equation, you do similar steps. You subtract [tex]2x[/tex] from both sides:
[tex]4y=-2x+9[/tex]
Then you want to divide both sides by '4' to isolate y:
[tex]y= -\frac{1}{2}x+\frac{9}{4}[/tex]
Now to check if the two equations are parallel, perpendicular, or neither, you compare the slopes 'm' which is the coefficient next 'x'. If two equations have the same slope, then they are parallel. If the slopes multiplied equal -1, then they are perpendicular. If the slopes are not the same or if the product of the slopes is not -1, then it is neither.
In the case of this problem, the slopes are the same, so the equations are parallel:
[tex]-\frac{1}{2} = -\frac{1}{2}[/tex]
In the diagram below of triangle TUV, W is a midpoint of TU and X is a midpoint
of UV. IfWX = 23 – 2x, and TV = 64 – 10x, what is the measure of TV?
А.
W
T
V
Answer:
Submit Answer
Answer:
[tex] TV = 34 [/tex]
Step-by-step explanation:
WX = 23 – 2x,
TV = 64 – 10x,
First, create an equation you will use to find the value of x.
Thus:
[tex] WX = \frac{1}{2}(TV) [/tex] (midsegment theorem of a ∆)
[tex] 23 - 2x = \frac{1}{2}(64 - 10x) [/tex] (substitution)
[tex] 23 - 2x = \frac{1}{2}(64 - 10x) [/tex]
Multiply both sides by 2
[tex] (23 - 2x)*2 = \frac{1}{2}(64 - 10x)*2 [/tex]
[tex] 46 - 4x = 64 - 10x [/tex]
Collect like terms
[tex] 46 - 64= 4x - 10x [/tex]
[tex] -18= -6x [/tex]
Divide both sides by -6
[tex] 3 = x [/tex]
[tex] x = 3 [/tex]
Find TV:
[tex] TV = 64 - 10x [/tex]
Plug in the value of x
[tex] TV = 64 - 10(3) = 64 - 30 [/tex]
[tex] TV = 34 [/tex]
Answer:
the answer is 18
Step-by-step explanation: I unfortanutley got it wrong by listen to the dude that said it 34 but it's 18
PLEASE ANSWER ASAP!!!
A right triangle always has obtuse exterior angles at two verticies, True or False?
Answer:
false
Step-by-step explanation:
chooseeeeeeeeeeeeeeeee oneeeeeeee plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz and explain
Answer:
Step-by-step explanation:
Jose is right because the two angles are coresponding angles that are congruent
4 and 2 5ths + 2 and 2 3irds =
Answer:
The answer is 7.0666
Step-by-step explanation:
Anna spent $2.75 at the school store. She bought two erasers and some pencils. How many pencils did she buy? Write and Solve an equation. If needed, use P to represent the number of pencils, and E to represent the number of Erasers. (This is for Multi-step Linear Equations)
Answer:
How much per a pencil and eraser? I'll help you out from there :)
Please help will put brainliest
Answer:
7x - 8y = -23
Slope = 1.750/2.000 = 0.875
x - intercept = -23/7 = 3.28571
y - intercept = 23/8 = 2.87500
7x - 7y = -14
Slope = 1
x - intercept = -2/1 = -2.00000
y - intercept = 2/1 = 2.00000
At a factory, a machine puts tops on bottles at a rate of 90 bottles per minute. How many tops can be put on bottles between 10:00 AM and 2:30 PM?
Answer:
24300Step-by-step explanation:
Rate:
90 tops/minTime:
2:30 PM - 10:00 AM = 14:30 - 10:00 = 4:30 hours 4:30 hours = 4*60 + 30 min = 270 minNumber of tops can be put in 270 min:
270*90 = 24300The sum of the digits of a certain two-digit number is 13. Reversing its digits decreases the number by 45. Find the number..
Answer:
......................
You are given a penny on January 1, two pennies on January 2, four pennies on January 3, and eight pennies on January 4, and so on. 1.
Assuming the pattern continues, how many pennies do you get on the following dates? January 5 January 10 January 31
Answer:
january 5 :12
january 10:22
Step-by-step explanation:
Answer:
16 pennies512 pennies1073741824 penniesStep-by-step explanation:
We can see a pattern:
Days >> Pennies1 >> 1= 2^02 >> 2= 2^13 >> 4 = 2^24 >> 8 = 2^3...n >> 2^(n-1)So
January 5 fall on n = 5, therefore 2^4 = 16 penniesJanuary 10 falls on n = 10, therefore 2^9 = 512 penniesJanuary 31 falls on n = 31, therefore 2^30 = 1073741824 penniesGive answer please
Water bottles are sold in cases of 24. Select the TWO expressions that can represent the total number of water bottles in c cases
Options:
24 X c,
24 ÷ c,
24 + c,
24 - c,
24c
Answer:
24c
Step-by-step explanation:
First off, we know what in each case there are 24 bottles. So if we have c crates and want to know the water bottles inside them, we need to multiply 24 by c resulting in 24c or 24 x c.
Select the best answer for the question
6.) Lamb's-quarter weed is a common weed that inhibits the growth of corn. In a study, corn was planted at the same rate across 16 plots of land, and then the plots were weeded at different rates to allow a specific number of weeds to grow. No weeds other than lamb's-quarter were allowed to grow at all. The study aimed to see how much corn yield was affected by the presence of increased number of lamb's- quarter weeds per meter. When the study is finished, the data is found to have a moderately strong negative correlation of -0.72. Calculate the value of the variance.
O A. 72%
O B. 100%
O C. 51.8%
O D. 28%
Answer:
its 72%
Step-by-step explanation:
Write 4,275,000,000 in scientific notation
Answer:
4.275 x 10^9
Step-by-step explanation:
jus do it
Answer:
4.275x10bto the 9th power
Step-by-step explanation:
2 1/8 and 17/8 are reciprocal numbers. True False
Answer:
False
Step-by-step explanation:
If make 2 1/8 into an improper fraction, it will be 17/8. a reciprocal is a flip of a number, so it is false.
Write the equation in standard form using integers. Y=4/5 x-6
Answer:
y = -4x/5 - 6
5y = -4x - 30
4x + 5y = -30
all our cube shaped all sides of a cube measures 6.5 feet each what is the volume of the storage unit
Answer:
The answer is 274.625
Step-by-step explanation: Volume is lxwxh so 6.5 x6.5 x6.5 is 274.625
Answer:
im the girl from the other question that you said you liked! :)
Step-by-step explanation:
The math club is having a car wash to raise funds to attend a state competition. They need to raise a minimum of $325.00. The cost of supplies for the car wash is $25.00. If they expect 40 cars on the day of the car wash, what is the amount they will have to charge each car to meet the minimum goal?
Answer:
8.75
Step-by-step explanation:
the formula to use would be:
$325 = 40x - 25
add 25 to both sides of the equation to get:
$350 = 40x
divide both sides by 40 to get:
x = 350/40 = $8.75
if they charge $8.75 per car, they will raise 40 * that for a total of $350.
they would then subtract the $25 for the cost of the supplies and they would be left with $325.
that's their minimum goal.
Answer:
8.75
Step-by-step explanation:
convert 25 liter to millilliter
Answer: 25,000 milliliter
[tex]\huge\text{Hey there!}[/tex]
[tex]\large\text{Just \bf MULTIPLY the liter (25) from 1,000}[/tex]
[tex]\large\textsf{25}\times\large\textsf{1,000 = ANSWER}[/tex]
[tex]\large\textsf{= \underline{\bf 25,000 }}\large\checkmark[/tex]
[tex]\boxed{\boxed{\large\textsf{Answer: \huge \bf 25,000 mL (Milliliters) }}}\huge\checkmark[/tex]
[tex]\text{Good luck on your assignment and enjoy your day!}[/tex]
~[tex]\frak{Amphitrite1040:)}[/tex]
-15+6p=5(2p+1)
muti step
Select the correct answer.
The number of days, d, it will take Manny to read a book varles inversely as the number of pages, p, he reads per day. If kis the constant of
variation, which equation represents this situation?
OA. d+p=k
OB. dp = k
OC. d= pk
OD. d=p+k
The equation represents this situation will be dp = k. Thus, option B is correct.
What is directly proportional?Let there are two variables p and q
Then, p and q are said to be directly proportional to each other if
p = kq
where k is some constant number called constant of proportionality.
The inversely proportional relationship is denoted by
[tex]m \propto \dfrac{1}{n} \\\\ \text{or} \\\\n \propto \dfrac{1}{m}[/tex]
As visible, increasing one variable will decrease the other variable if both are inversely proportional.
The number of days, d, it will take Manny to read a book varies inversely as the number of pages, p, he reads per day.
If k is the constant of variation.
The equation represents this situation will be
dp = k
Thus, option B is correct.
Learn more about proportional relationship variable here:
https://brainly.com/question/13082482
#SPJ2
What is the value of Cosine (StartFraction x Over 2 EndFraction) if tangent x = one-half and x is in quadrant III?
[tex] - \sqrt{ \frac{5 - 2 \sqrt{5} }{10} } [/tex]
Answer:
a
Step-by-step explanation:
on edge
Solve the equation. Type just the numeral answer. Do NOT round your solution.
n
= -1.2
-1.5
n=
Answer:
-2.7
thats the answer but i cant submit without some words lol
Answer:
n= 1.8
Step-by-step explanation:
Solve the following expression:
n/-15 = -1.2
-Multiply -1.5 on both sides:
(-1.5) n/-1.5 = -1.2(-1.5)
n=1.8
Therefore, the final answer is n = 1.8.
55-4.5+12 what is the anwer for this
