Answer:
We cannot determine the appropriate hypotheses to test this study because we are only given the data for the sample size and the population mean. Meanwhile, we need to know the data of the sample mean, the standard deviation and the level of significance before we can state the appropriate hypotheses for this test.
Step-by-step explanation:
Given that:
sample size n = 300
population mean μ = 35
The null hypothesis and the alternative hypothesis can be computed as follows:
Null hypothesis
[tex]H_o: \leq 35[/tex]
Alternative hypothesis
[tex]H_1 > 35[/tex]
The degree of freedom df = n -1
df = 300 - 1
df = 299
Point M is the midpoint of AB. The coordinates of point A are (-7, 1) and the coordinates of M are (-4,1). What are the coordinates of point B? The coordinates of point B are :
Answer:
The coordinates of point B are : (-1, 1)
Step-by-step explanation:
[tex]\frac{-7+x^{2} }{2} = -4\\\frac{1+y^{2} }{2} =1[/tex] You multiply -4 by 2 which gives you -8 then you multiply 1 by 2 which gives 2.
Then you create the equations [tex]-7 + x^{2} = -8\\1 + y^{2} = 2[/tex] you substitute -7 for +7 and add 7 to -8 which gives -1 ([tex]x^{2}[/tex]) and subtract 1 from 2 which gives you 1 ([tex]y^{2}[/tex])
To check your answer use the midpoint formula [tex]\frac{-7+-1}{2} =\frac{-8}{2} =-4\\\frac{1+1}{2} =\frac{2}{2} =1[/tex] which gives you your midpoint (-4,1)
|x| = 2
absolute value of this please help
which operation is used for the equation down below
Answer:
B
Step-by-step explanation:
2x+8=9
you want to isolate the variable so you subract 8 from both sides
2x=1
now you want x by itself so you divide by 2 on both sides
x=1/2 or x=0.5
Hope this helped :)
HELP PLZ 50 POINTS FOR REWARD
(3.rº – 7x + 2) - (2x² – 4x + 5)
Simplify this^
Answer choices :
A. x2 -11x - 3
B. x2 - 3x + 7
C. x2 -3x -3
D. x2 - 11x + 7
Answer:
choice C: x2 -3x -3
Step-by-step explanation:
(3x^2-7x+2)-(2x^2-4x+5)
becomes
3x^2-7x+2 -2x^2+4x-5
adding
3x^2-2x^2 -7x+4x +2-5
which is
x^2 -3x -3
On Monday Elaine ran 5 miles and 3 laps around a trail. On Tuesday she ran 6
miles and 2 laps aorund a trail. She ran the same distance both days. How many
miles long is one lap around the trail?
Answer:
3 laps
Step-by-step explanation:
I think
if you could help it'd mean the world to me
Answer: 22
Step-by-step explanation: because if you read it carefully and do math you are sure to get it right!! :)
Multiply.
5 x 10 the power of three
Answer:
5000
Step-by-step explanation:
The answer to 5x10^3 is 5000
2,236.8 to the nearest ten
Answer:
Already rounded to the nearest tenth.
2236.8
Step-by-step explanation: k
Answer:
2240
Step-by-step explanation:
find the number in the ten place (3) and look one place to the right for rounding digit 6. Round up if this number is greater than or equal to 5 and round down if it is less than 5.
36 diveded to 68251500
Answer: do you mean divided
If so the answer is
1895875
Step-by-step explanation:
68251500÷36=1895875
Find k so that the distance from (–3, –1) to (k, 5) is 10 units.
Answer:
k = - 11, 5
Step-by-step explanation:
By distance formula:
[tex] \sqrt{ \{ {k - ( - 3) \}}^{2} + \{5 - ( - 1) \}^{2} } = 10 \\ \\ \sqrt{ {(k + 3)}^{2} + {(5 + 1)}^{2} } = 10 \\ \\ \sqrt{ {(k + 3)}^{2} + {(6)}^{2} } = 10 \\ \\ \sqrt{ {(k + 3)}^{2} + 36 } = 10 \\ \\ (k + 3)^{2} + 36 = {10}^{2} \\ ..(squaring \: both \: sides) \\ {k}^{2} + 6k + 9 + 36 = 100 \\ {k}^{2} + 6k + 45 - 100 = 0 \\ {k}^{2} + 6k - 55 = 0 \\ {k}^{2} + 11k - 5k - 55 = 0 \\ k(k + 11) - 5(k + 11) = 0 \\ (k + 11)(k - 5) = 0 \\ k + 11 = 0 \: or \: k - 5 = 0 \\ k = - 11 \: or \: k = 5 \\ \\ \huge \red { \boxed{k = \{ - 11, \: 5\}}}[/tex]
There are two solutions for [tex]k[/tex]: 5 and -11.
In this case, we must use the Length Equation for Line Segment to solve for [tex]k[/tex], whose formula is described below:
[tex]l = \sqrt{(x_{B}-x_{A})^{2}+ (y_{B}-y_{A})^{2}}[/tex] (1)
Where:
[tex](x_{A}, y_{A})[/tex] - Coordinates of the initial endpoint.
[tex](x_{B}, y_{B})[/tex] - Coordinates of the final endpoint.
[tex]l[/tex] - Length of the line segment.
If we know that [tex](x_{A}, y_{A}) = (-3, -1)[/tex], [tex](x_{B}, y_{B}) = (k, 5)[/tex] and [tex]l = 10[/tex], then the equation is expanded into this form:
[tex](k+3)^{2}+[5-(-1)]^{2} = 100[/tex]
[tex]k^{2}+6\cdot k + 9 + 36 = 100[/tex]
[tex]k^{2} + 6\cdot k -55 = 0[/tex]
The roots of this Second Order Polynomial are determined by Quadratic Formula:
[tex]k = 5[/tex] or [tex]k = -11[/tex].
There are two solutions for [tex]k[/tex]: 5 and -11.
Please see this related question: https://brainly.com/question/15887719
When we roll one die, we have a 1 in 6 probability of getting any particular number on the die. When we roll a pair of dice, there are 36 different pairs that can be produced, yet only 11 actual distinct values. Explain how the probability associated with the roll of each individual die in the pair explains the higher variability in the total outcome of the roll of each pair. How do the concepts of permutations and combinations apply to this example
Answer:
The probability of an event occurring depends on the sample space and the frequency of the event
permutations and combination principles would have to be applied to determine the probability of a particular number showing up when a pair of dice is rolled ,while a single dice roll have a fixed frequency of every event ( 1,2,3,4,5,6,) hence probability of a number showing up is 1/6
Step-by-step explanation:
The probability of an event occurring depends on the sample space and the frequency of the event
The total outcomes of rolling a pair of fair dice would be = ( total outcome of single dice A * total outcome of single Dice B ) = 6 * 6 = 36. and this is because the Two dice are independent of each other. hence there is a higher variability in the determining the possibility of a particular number ( 1,2,3,4,5,6) showing up when a pair of dice is rolled due to the larger sample space. permutations and combination principles would have to be applied to determine the probability of a particular number showing up when a pair of dice is rolled ,while a single dice roll have a fixed frequency of every event ( 1,2,3,4,5,6,) hence probability of a number showing up is 1/6
Will mark brainlist:)
Answer:
The length of the missing side is 7 yards
Step-by-step explanation:
Simply subtract 9 from 16
16-9=7
The length of the missing side is 7 yards
Hope this helps! Plz award Brainliest : )
The answer is 7yd.
I got this answer by simply looking at the line parallel to it, which would be 16yd. I subtracted 16yd - 9yd = 7yd.
Hope this helped!
Good luck <3
Tina spent 5.5 hours at the theme park. On average, she spent $8.70 each hour. How much money did she spend while at the theme park?
Answer:
[tex]\huge\boxed{$47.85}[/tex][tex]\huge\boxed{\$47.85}[/tex]
Step-by-step explanation:
We know that Tina spent 5.5 hours at the theme park. If she spend $8.70 per hour, then we can multiply 8.70 by 5.5 to find the total cost.
[tex]8.70 \cdot 5.5 = 47.85[/tex]
Hope this helped!
What is the value of X
Answer:
16
Step-by-step explanation:
The angles are vertical angles which means they are equal
8x-8 = 7x+8
Subtract 7x from each side
8x-8-7x = 7x+8-7x
x-8 = 8
Add 8 to each side
x-8+8 = 8+8
x=16
Complete the table to show how many ounces are equivalent to 6 pounds.
A 2-column table with 4 rows. Column 1 is labeled Pounds with entries 6, 8, 10, 12. Column 2 is labeled Ounces with entries question mark, 128, 160, 192.
There are
ounces in 6 pounds.
Answer:
is 96
Step-by-step explanation:
its simple hope you do good
Answer:
It's 96
Step-by-step explanation:
it's 96 because 128-(128/8)=96
PLEASE MARK AS BRAINLEIST
On a number line, the coordinates of X, Y, Z, and W are −7, −2, 2, and 7, respectively. Find the lengths of the two segments below. Then tell whether they are congruent. XY and ZW
Solve the following Equations
A)x-1=5
B)2m-1=9
Answer:
x=6 m=5
Step-by-step explanation:
x-1=5
x=5+1
x=6
2m-1=9
2m=9+1
2m=10
m=10/2
m=5
what does b equal can i please have your help
Hey there! I'm happy to help!
These are corresponding angles since they both connect a parallel line and the transversal. This means they are congruent and have the same value. So, we can set up the following equation.
8x-8=5x+25
Subtract 5x from both sides.
3x-8=25
Add 8 to both sides.
3x=33
Divide both sides by 3.
x=11.
Have a wonderful day! :D
Answer:
x = 11
∠B = 80
Step-by-step explanation:
∠A = ∠B
where
∠A = 8x - 8°
∠B = 5x + 25°
8x - 8° = 5x + 25°
8x - 5x = 25 + 8
3x = 33
x = 33/3
x = 11
plugin x into ∠B = 5x + 25°
∠B = 5x + 25°
∠B = 5(11) + 25°
∠B = 80
If the radius of circle A is 2 inches, the radius of circle B is 3 1/4 and the radius of circle C is 1 inch, what is the perimeter of ABC?
Answer:
39.26 in
Step-by-step explanation:
This problem, bothers on the mensuration of flat shapes.
we know that the perimeter of a circle is the same as the cirmcumference
we also know that the circumference is given as
C= 2πr
For circle A
C=2*3.124*2
C= 12.56 in
For circle B
C=2*3.124* 3 1/4
C= 2*3.142*13/4
C= 2*3.142*3.25
C= 20.42 in
For circle C
C=2*3.124*1
C= 6.284 in
Now the perimeter of all the circles ABC is
=12.56 +20.42 + 6.284
=39.26 in
Find the LCM of 3 and 4
Answer:12
Step-by-step explanation:
For 1-3, use the graph of the quadratic function.
A
1- Write the Domain of the functions as an inequality, using set notation and interval notation
Inequality_________
Set notation _______
Interval notation______
2- write the range of the function as an inequality. Using set notation and interval notation
Inequality _______
Set notation _______
Interval notation ________
Describe the end behavior of the function ( as x gets bigger and smaller, what happen to y)
____________
____________
Answer:
Step-by-step explanation:
From the picture attached,
Function given is a parabola, therefore, function is a quadratic function.
Domain of the function : x-values(input values) on the graph
: -∞ ≤ x < ∞
Domain in set notation : {x | x ∈ All real numbers}
Domain in the form interval notation : (-∞, ∞)
End behavior of the function : As both the ends of the function are downwards towards the infinity,
: As x → ∞, y → -∞ [Right end]
: As x → -∞, y → -∞ [Left end]
Ms. sullivan bought some pens at the school supply store, including 5 red pens. 25% of all pens she bought were red. How many pens did ms. Sullivan buy in all?
25% = 1/4
5 pens * 1/4 = 20 pens
Ms. Sullivan bought 20 pens in total
Answer:
20
Step-by-step explanation:
5 x 4 is 20.
The answer is 20. Hope this helps.
Point A' is the image of point A under a rotation about the origin, (0,0).
y
1
7
6
A.
5
4
3-
2
1-
-7-6-5-4-3-2
2 3 4 5 6 7
-2
-3
-4
-5
-6
-7-
Answer: it’s 180 degrees
Step-by-step explanation: answered on khan academy
(d) Given: AB = 4; in and AC = 3
Find: The length of BC or BC
What the answer??
25. Reasoning Suppose you plot the locations of
the animals on a number line. Which animal
would be represented by the point farthest from
O on the number line? Explain.
B
Answer: Fanfin anglerfish
Step-by-step explanation:
my teacher told me cause i have the same book that other answer u just saw is incorecct
What is the equation of the line that passes through the point (-7, 2) and has a
slope of -1?
Answer: y= -1x - 5
Step-by-step explanation:
The equation has to be in slope-intercept form which uses the formula
y=mx+b where m is the slope and b is the y-intercept.
So we given the slope and an x and y coordinate so we will plot those numbers into the formula and solve for the y intercept to write the equation.
the x coordinate is -7 and the y coordinate is 2
2 = -1(-7) + b
2 = 7 + b
-7 -7
b = -5 the y intercept is -5
Now the equation will be y= -1x - 5
Observing the histogram, frequency proportions, and normal probability plot based on the data set, below, of weights of hummingbirds (in grams) randomly selected from a population, we have a strong indication that the weights of the population of these hummingbirds from which these data were drawn are:
Answer:
Normally Distributed.
Explanation:
After plugging all those numbers into a calculator you can see that the graph isn't left skewed, making both "left skewed" and "all of the above" not an answer. "correlated with a second set of data" is also wrong since there was no second set of data given. That leaves you between "uniformly distributed" and "normally distributed" This graph doesn't show a uniformly distributed graph, which leaves you with the final answer, normally distributed.
APEX
Answer:
Normally distributed
Step-by-step explanation:
took the quiz :)
Convert 0.9 to a percent
Answer:
0.9%
Step-by-step explanation:
Answer:
90%
Step-by-step explanation:
0.9*100% (formula to calculate decimal into percent)
Hope it helps!!
Thankyou!!
The population of a town doubles every 4 years.
Complete the sentence,
The population is best represented by an)
function because the population is changing by a constant
Answer:
quizlet probably has your answer
Step-by-step explanation:
