Answer:
Real numbers are not closed under cube root
Step-by-step explanation:
The cube of each real number is increasing as the real numbers increases, giving a functional or one to one relationship. Therefore, the cube roots of real number have also a one to one relationship.
Given that a cube root of a number, ∛x = y therefore, y³ = x, we have that all real numbers, excluding zero, have one cube root, and two complex and conjugate roots
For the real number, 8, we have the cube roots given as follows;
∛8 = 2
Also, ∛8 = -1 + √3i and -1 - √3i
Given that not all cube roots of 8 are real numbers we have that real numbers are not closed under cube root.
A researcher is 95% confident that the interval from 2.9 minutes to 6.83 minutes captures u = the true mean amount
of time mice take to complete a maze for a piece of cheese.
Is it plausible that the true mean number of times for all mice to complete this maze may be less than 7 minutes?
No, this is not plausible for the population mean because 7 minutes is within the 95% confidence interval.
O No, this is not plausible for the population mean because 7 minutes is not within the 95% confidence interval.
Yes, this is plausible for the population mean because 7 minutes is not within the 95% confidence interval.
O Yes, this is plausible for the population mean because the upper boundary of the 95% confidence interval is below
7 minutes
Answer:
Answer is d.
Step-by-step explanation:
edg 2020
PLEASE HELP :P
What is the slope of this graph?
−14
−4
4
14
Answer:
-4
Step-by-step explanation:
You want to order a pizza for dinner. The pizza shop has a deal where you can buy a three-topping pizza for 11.99. If the pizza shop has 30 different toppings that you can put on your pizza, how many different pizzas could you get for 11.99?
A.4060
B.8120
C.24360
D.12180
A scale drawing of a rectangle park measures 6 inches long and 2 inches wide. If the scale used for the 3 inches equals 7 yards, what is the actual length of the park?
Tina has two rectangular playpens to keep her new pet dogs. The first rectangle has a width of 6 feet and a length of x - 4 feet. The second rectangle has a width of 8 feet and a length of x + 2 feet. What is the sum of the two perimeters?
Answer:
4x+24 ft.
Step-by-step explanation:
Perimeter of first rectangular playpen mentioned: 2(6+x-4), which can be simplified to 2(x+2) = 2x + 4.
Perimeter of second playpen mentioned: 2(8+x+2), which can be simplified to 2(x+10) = 2x+20.
Add these two together: 2x+4 + 2x+20 = 4x+24. Don't forget to add units: 4x+24 ft.
Find the measure of each missing angle.
Answer:
<1=63°
<2=49°
<3=87°
<4=44°
Step-by-step explanation:
<1=180-68-49=63°
<2=49°
<3=180-93=87°
<4=180-49-87=44°
This table represents the number of ounces, u, a kitten grows after w, weeks. When graphed, all of the points in the table lie on the same line. What is the slope and y-intercept of the line? slope=−23, y-intercept=−0.2 slope=32, y-intercept = 3 slope=23, y-intercept=−0.2 slope=−32, y-intercept = 3
Using the slope and intercept formula, the slope and y - intercept values of the graphed data are 3/2 and 3 respectively
Given the data :
Weeks, w ___ Weight in ounces, u
0 __________ 3
3 _________ 7.5
6 __________12
9 _________16.5
The y - intercept :
This is the value of y when the value of x = 0From the table given, the initial weight of the kitten (weight at week 0) = 3 ounces
Hence, the intercept is 3 ounces.
2.)
The slope :
Slope = Rise / RunRise = y2 - y1 = (16.5 - 3) = 13.5
Run = x2 - x1 = 9 - 0 = 9
Slope = 13.5 / 9 = 1.5
Therefore, the slope is 1.5
Learn more : https://brainly.com/question/15712200
Which statement correctly describes the relationship between △JKL and △J′K′L′?
△JKL is congruent to △J′K′L′ because you can map △JKL to △J′K′L′ using a reflection across the x-axis, which is a rigid motion.
△JKL is congruent to △J′K′L′ because you can map △JKL to △J′K′L′ using a rotation of 90° counterclockwise about the origin, which is a rigid motion.
△JKL is congruent to △J′K′L′ because you can map △JKL to △J′K′L′ using a translation 5 units up, which is a rigid motion.
△JKL is not congruent to △J′K′L′ because there is no sequence of rigid motions that maps △JKL to △J′K′L′.
Answer:
The is answer is the last one.
Step-by-step explanation:
I just took the test
The correct statement is
△JKL is not congruent to △J′K′L′ because there is no sequence of rigid motions that maps △JKL to △J′K′L′.
What is Transformation?A point, line, or geometric figure can be transformed in one of four ways, each of which affects the shape and/or location of the object. Pre-Image refers to the object's initial shape, and Image, after transformation, refers to the object's ultimate shape and location.
Translation, rotation, reflection, and dilation are the four primary categories of transformation.
According to the given graph we have noticed that there is reflection over x- axis.
And, also there is no shifting of units.
So, there is only the reflection over x- axis.
But, there is no option about reflection.
Hence, △JKL is not congruent to △J′K′L′ because there is no sequence of rigid motions that maps △JKL to △J′K′L′.
Learn more about transformation here:
brainly.com/question/11709244
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what is the vertex of h(x)=3x^2+6x-2?
its -1 and -5
thank u for letting me helps u
what is the equation of the line that passes through the point (-3, 4) and has a slope of 1/3?
Answer:
Y=1/3x+5
Step-by-step explanation:
I hope it help you
Plz help me. If you cant give me answer than at least plz explain to me how to do this so i can get a better understanding of this...thx
Answer:
y = mx + b
Step-by-step explanation:
Substitute in the slope intercept formula
m = slope
x = first number in the point
y = second number in the point
and solve for b
Question 1
m=-1/2, x= -4 y=-2 substitute
-4 = -1/2(-4) + b
-4 = 2 + b
-4 -2 = 2 -2 + b
-6 = b
y=-1/2x -6
HELP WILL MARK DOWN BRAINLIEST
ASAP
Answer:
2nd question 3rd one down
Step-by-step explanation:
BRAINLIEST PLEASE
Answer:
DEDE plsssss send me tae cht i make a new acc
Step-by-step explanation:
Which type of activity does Jeff do at a speed of 4.5 point, 5 miles per hour?
Answer:
Swimming
Step-by-step explanation:
The type of activity that Jeff does at a speed of 4.5 miles per hour is Swimming
If this was helpful, please mark brainliest. Have a beautiful day.
based only on the given information, it is guaranteed that ac is congruent to bc. true or false?
Answer:
True. SAS or ASA. It shows that AD and BD are congruent and the triangles also share two sides and two angles.
Step-by-step explanation:
can someone help me with my test i have too write out the whole entire process & simplify them -
1st -3(2x-5)
2nd - 5+3x-8y+2x+9y-12
Answer:
1st -6x + 15
2nd 5x + y - 17
Simplified = -x + y -2
Step-by-step explanation:
Just add like terms if that's what it's asking.
Mario walked at a rate of 5/6 miles every 10 minutes what is his unit rate every mile per hour
Answer:
Mario's unit rate is 5/1
Step-by-step explanation:
We know that Mario walks 5/6 miles per 10 minutes.
We need to find out how many miles Mario walks in 60 minutes (1 hour).
10 * 6 = 60. Which means that we must multiply 5/6 by 6.
[tex]\frac{5}{6} *\frac{6}{1} = \frac{30}6[/tex]
30/6 = 5
Mario walks 5 miles per hour.
To put this in to a unit rate we must put this is a fraction:
[tex]\frac{Miles}{Hour}[/tex]
Substitute:
5/1
Answer:
Mario's unit rate is given by 900 miles/hour
Step-by-step explanation:
We have been given that Mario walked at a rate of 2/3 miles every 10 minutes
We have the relation between speed, time and distance, which is given by
speed = distance/Time
we have,
distance = 2/3 miles
Time = 10 minutes
On substituting these values in above formula, we got
speed 2/3 /10
speed 2/10.3
We have to find the unit rate in mile per hour, so we need to multiply it by 60
Thus, unit rate is given by
1/15 X 60
= 4 miles/hour
true or false dilation of a triangle are congruent to the original triangle
Answer:
True
Step-by-step explanation:
Hope this helps :)
Answer:
Step-by-step explanation:
ITS TRUE hope this helps
write an equation of a line (-4,-1) and is perpendicular to the line y=4/3x+6
y =
Answer:
y= -3/4x-2
Step-by-step explanation:
- perpendicular: opposite signs and reciprocal
m= -3/4
point-slope form: y-y1=m(x-x1)
y-(-1)= -3/4(x-(-4))
y+1= -3/4(x+4)
y+1= -3/4x -3
y= -3/4x-2
In which quadrant of the coordinate graph does point J lie?
Answer:
Quadrant 1
Step-by-step explanation:
Hope this helped, Have a Great Day!!
which table shows y as Directly propertional to x
Parallel or perpendicular 3x+5y=10 and 5x-3y=-6
HELPPPPPPPPPPPPPPPPPP
Answer:
i think its b
Step-by-step explanation:
i think its b
ejjdkdodid
Write the equation of the line that passes through the given points. (-2,2.5) and (0,-4.5)
Answer: y = -3.5x - 4.5
suppose: the equation of the line is y = ax + b ( a ≠ 0 )
because the line passes through (-2;2.5) => 2.5 = -2a + b
the line passes though (0;-4.5) => -4.5 = b
=> b = -4.5
2.5 = -2a + b
=> a = -3.5
b = -4.5
=> the equation of the line is y = -3.5x - 4.5
Step-by-step explanation:
Determine whether line AB and line CD are parallel, perpendicular, or neither.
A(-6,-9), b8,19), C(0,-4), D(2,0)
please and thank you
Answer:
line AB is parallel to line CD
Step-by-step explanation:
Because they have the same gradient which is 2
Which statements must be true regarding the two triangles? Check all that apply. M M" O LMN - L"M"N" O LMN 2 L"M"N"
The coordinates of vertex L" are (-3, 1.5). The coordinates of vertex N" are (3,-1.5). The coordinates of vertex M" are (1.5, -1.5).
Answer: The 1st, 2nd, and 5th one
Step-by-step explanation:
just did it
Answer:
A-
∠M ≅ ∠M''
B- △LMN ~ △L''M''N''
E- The coordinates of vertex N'' are (3, -1.5).
Explanation:
edge 2022
what is the slope of the line with the equation y-3= -1/2(x-2)?
a. -2
b.-1/2
c.1/2
d.2
Answer: m = -1/2
Step-by-step explanation:y=mx + b to find slope m m =
Jack and Jill are going up the hill to pull weeds. Jack can pull all of the weeds by himself in 8 hours; if Jill helps him they can pull the same amount of weeds in 5 hours. How long would it take Jill to pull the weeds working alone?
Answer:
it would take jill 12 hours
Answer:
13.3 hours
Step-by-step explanation:
5/8 +5/b = 1
8b(5/8+5/b=1)
5b+40=8b
40=3b
40/3=b
40/3=13.3 hours
What is the value of x in the equation Negative StartFraction 6 over 7 EndFraction = Negative StartFraction x over 84 EndFraction?
Answer:
c =72
Step-by-step explanation:
Answer:
C: 72
Step-by-step explanation:
I took the test on edge
-5(3-r)=30
Please help!
ara scoops flour into a mixing bowl. Each scoop contains 34
cup of flour. Clara puts 5 scoops of flour into the mixing bowl, then transfers 13
of the flour into a small bowl. How many cups of flour are in the small bowl?
Answer:
1 1/4 cups
Step-by-step explanation:
