Answer:
x=56/66
Step-by-step explanation:
Can someone please help me
Answer:
is this geometry. if it is then i can help you
Step-by-step explanation:
[tex]\\ \rm\rightarrowtail \dfrac{NM}{NO}=\dfrac{KM}{KL}[/tex]
[tex]\\ \rm\rightarrowtail \dfrac{x}{7}=\dfrac{20}{2x}[/tex]
[tex]\\ \rm\rightarrowtail 2x^2=140[/tex]
[tex]\\ \rm\rightarrowtail x^2=70[/tex]
[tex]\\ \rm\rightarrowtail x=\sqrt{70}[/tex]
A two-way frequency table shows grades for students in college and students in high school: high school college total gpa above 3.0 14 26 40 gpa below 3.0 46 14 60 60 40 100 based on this data, are "being in high school" and "gpa above 3.0" independent events? yes, p(high school ∩ gpa above 3.0) = p(high school) ⋅ p(gpa above 3.0) no, p(high school ∩ gpa above 3.0) = p(high school) ⋅ p(gpa above 3.0) yes, p(high school ∩ gpa above 3.0) ≠ p(high school) ⋅ p(gpa above 3.0) no, p(high school ∩ gpa above 3.0) ≠ p(high school) ⋅ p(gpa above 3.0)
Based on the data in two-way frequency table, "being in high school" and "gpa above 3.0" are not independent events.
What is conditional probability?The conditional probability is the happening of an event, when the probability of occurring of other event is given.
A two-way frequency table shows grades for students in college and students in high school.
Let H represent being in high school and G represent the GPA above 3.0. To be an independent event, they must be,
[tex]P(H|G)=P(H)[/tex]
The conditional probability of event H, given that the G is occurred, can be calculated as,
[tex]P(H|G)=\dfrac{14}{40}\\P(H|G)=0.35[/tex]
Total students below 3.0 GPA are 60 and the total number of student are 100. Thus, the probability of being in high school is
[tex]P(H)=\dfrac{60}{100}\\P(H)=0.6[/tex]
Here, conditional probability [tex]P(H|G)[/tex] is not equal to the probability of being in high school.
Hence, based on the data in two-way frequency table, "being in high school" and "gpa above 3.0" are not independent events.
Learn more about the probability here;
https://brainly.com/question/24756209
Y is the midpoint of XZ and W is the midpoint of VX.
If VZ=s+52 and WY=7s, what is the value of s?
Answer:
4
Step-by-step explanation:
By the triangle midsegment theorem, 2(YW)=VZ.
This means 2(7s)=s+52, meaning s=4.
If one root of the equation x^2 + 5x + k = 0 is -2, what is the value of k?
Answer:
k = 6
Step-by-step explanation:
given x = - 2 is a root then substitute x = 2 into the equation
(- 2)² + 5(- 2) + k = 0
4 - 10 + k = 0
- 6 + k = 0 ( add 6 to both sides )
k = 6
Answer:
k = 6
Step-by-step explanation:
since x = - 2 put x = 2 into the equation
(- 2)² + 5(- 2) + k = 0
4 - 10 + k = 0
-6 + k = 0
+6 +6
k = 6
PLEASE HELP!
The diameter of a bicycle wheel is 26 inches. how many feet will the bicycle travel if the wheel turns 20 times?
Answer:
163.1 feets bicycle will move in 20 revolution
Step-by-step explanation:
Given:-
Diameter of bicycle wheel is 26 inchThen the radius will be 13 inch
Solution:-
One revolution = Perimeter of bicycle wheel
Perimeter of bicycle wheel :-
= 2πr
= 2×22/7×13
81.7 inch
Total feets the bicycle will travel If it turns 20
times :-
81.7×20
= 1634 inches
Distance covered in feets:-
1634/12
= 163.1 feets
A parabola can be drawn given a focus of (-9, -7) and a directrix of x = 9. Write
the equation of the parabola in any form.
Check the picture below, so the parabola looks more or less like so, with a vertex at (0 , -7), let's recall the vertex is half-way between the focus point and the directrix.
so this horizontal parabola opens up to the left-hand-side, meaning that the "P" distance is a negative value.
[tex]\textit{horizontal parabola vertex form with focus point distance} \\\\ 4p(x- h)=(y- k)^2 \qquad \begin{cases} \stackrel{vertex}{(h,k)}\qquad \stackrel{focus~point}{(h+p,k)}\qquad \stackrel{directrix}{x=h-p}\\\\ p=\textit{distance from vertex to }\\ \qquad \textit{ focus or directrix}\\\\ \stackrel{"p"~is~negative}{op ens~\supset}\qquad \stackrel{"p"~is~positive}{op ens~\subset} \end{cases} \\\\[-0.35em] \rule{34em}{0.25pt}[/tex]
[tex]\begin{cases} h=0\\ k=-7\\ p=-9 \end{cases}\implies 4(-9)(x-0)~~ = ~~[y-(-7)]^2 \\\\\\ -36x=(y+7)^2\implies x=-\cfrac{1}{36}(y+7)^2[/tex]
Function f is defined by f(x)=3/2x+c. If f(6)=1, what is the value of f(c)?
Please don't just give me an answer, explain it so I understand. Thanks.
Answer:
C = - 8
Step-by-step explanation:
[tex]f(x) = \frac{3}{2} x + c \\ \\ plug \: x = 6 \\ \\ f(6) = \frac{3}{2} \times 6 + c \\ \\ f(6) = 3 \times 3 + c \\ \\ f(6) = 9+ c \\ \\ \therefore \: 1 = 9 + c \: \{ \because \: f(6) = 1 \} \\ \\ 1 - 9 = c \\ \\ \huge \red{ \boxed{ c = - 8}}\\\\
f(c) =\frac{3}{2} c +(-8)\\\\
\huge \orange { \boxed{ f(c) =\frac{3}{2} c -8}} \\\\ [/tex]
Select either relation (if the set is a relation but not a function), function (if the set is both a relation and a function), or neither (if the set is not a relation).
A = {(1, 2) (2, 2) (3, 2) (4, 2)}
Answer:
Function
Step-by-step explanation:
Since each x value corresponds to a single y value
This is probably rly easy but I'm lazy
I'll give you brainliest!!
(The answer choices are 1/12 mph, 3 3/4 mph, 5 mph or 15 mph).
Answer:
5mph
Step-by-step explanation:
driver 1 is driving 45mph (7x6=45)
driver 2 is driving 50mph (10x5=50)
A, B & C form the vertices of a triangle.
∠ CAB = 90°,
∠ ABC = 46° and AB = 9.2.
Calculate the length of AC rounded to 3 SF.
-5 – 3(x – 8) = -5x + 19
Answer:
[tex]x=0[/tex]
Step-by-step explanation:
Given the following question:
[tex]-5 - 3(x - 8) = -5x + 19[/tex]
To find the answer expand the equation, add/subtract on both sides, and simplify the expression.
[tex]-5 - 3(x - 8) = -5x + 19[/tex]
[tex]-5-3(x-8)=-3x+19[/tex]
[tex]-3x+19=-5x+19[/tex]
[tex]19-19=0[/tex]
[tex]19-19=0[/tex]
[tex]-3x=-5x[/tex]
[tex]-3x+5x=-5x+5x[/tex]
[tex]-3x+5x=2x[/tex]
[tex]2x=0[/tex]
[tex]2x\div2=x[/tex]
[tex]0\div2=0[/tex]
[tex]x=0[/tex]
Your answer is "x = 0."
Hope this helps.
Clair grows berries. A flock of birds comes to her field every day and eats berries. Clair plays loud recordings of a different animal each day to scare the birds, but none have helped so far. One day Clair played a recording of loud eagle calls, and the birds never came to her field.
What could be inferred?
A. The flock ate berries from a different fleld.
B. The flock migrated south
C. The flock was scared away by the eagle calls.
D. The flock may have wanted to share the berries with the eagles.
E. The flock Is afraid of all loud animal calls.
On a field trip there are 3 adults for every 45 students. Which graph models a relationship with the same unit rate?
Step-by-step explanation:
There is 1 adult for every 15 students. (I don't see any pictures of a graph)
Answer:
There is 1 adult for every 15 students
Step-by-step explanation:
5c+16.5=13.5+10c
solve for c
Answer:
c = 3/5
Step-by-step explanation:
5c+16.5=13.5+10c
Subtract 5c from both sides:
13.5+5c=16.5
5c=3
c = 3/5
50082740 x 382039849 - 92894330 + 83022098 divided by 380209382- put it into a punnet square table grid with 3823u02938 and find u and find y and find x to equal 2098309823
I tried but I kinda forgot to make your hair shorter. I got a little carried away.
In the following number, which digit is in the ten thousand places?
7,253,917
A.2
B.5
C.3
D.9
Answer:
B. 5
Step-by-step explanation:
How it is 5 is because well if you look to the side you can easily see that the 3 is in the Thousands place so.. the 5 would most likely be in the Ten Thousands place. Your Welcome!
Explanation:
Refer to the place value chart shown below.
The 5 is in the ten-thousands place value.
There's not much else I can add to that explanation, but feel free to ask any other questions you may have.
-4x^2+2x-5(1+x) what is the answer
Answer:
−
4x^2−3x−5
Step-by-step explanation:
A recipe for pasta dough says, “Use 150 grams of flour per large egg.” How much flour is needed if 6 large eggs are used?
Answer:900g
Step-by-step explanation:
150*6=900
Answer:
900 grams of flour
Since you already know that 150 grams of flour is used for one large egg
Just do 150×6 and that will give you the answer of 900.
I hope that helps :)
Is it a function? Or not
Answer:
Nah
Step-by-step explanation:
Nah tbh I don't think so if I'm being honest
Which of the following statements about parallelograms are true?
Select all that apply.
options:
All parallelograms have 4 right angles.
All parallelograms have rotational symmetry of 90°.
All parallelograms have rotational symmetry of 180°.
A rectangle is a parallelogram.
All parallelograms have exactly 4 lines of symmetry.
Answer:
All parallelograms have 4 right angles.
All parallelograms have rotational symmetry of 180°.
A rectangle is a parallelogram.
Step-by-stepStep-by-step explanation:
let me know if im wrong......have a good day!!!! :)
Kodiak is riding her skateboard
down a hill.
What is the slope?
Please help asap
Answer:
Slope = 1/20
Step-by-step explanation:
Because every 1 second, she goes down 20 feet.
Answer:the answer is the pic
Step-by-step explanation:
hope this helps bye
2. A Cylindrical hot water tank is closed at both ends. The radius of the tank is 0.5m and the height is 0.75.calculate i. The volume of the Cylinder it. The total surface area of the tank (take π =22 out of 7
Answer:
Volume = 0.59 m³
Surface Area = 3.93 m²
Step-by-step explanation:
Given :-
- Radius = 0.5 cm
- Height = 0.75 cm
To Find :-
- Volume
- Surface Area
Solving :-
Volume = πr²h
= 22/7 x (0.5)² x 0.75
= 22/7 x 1/4 x 3/4
= 66/112
= 33/56 m³
= 0.59 m³
Surface Area = 2πr (r + h)
= 2 x 22/7 x 0.5 (0.5 + 0.75)
= 22/7 x 5/4
= 110/28
= 55/14 m²
= 3.93 m²
Solution :-
Volume = 0.59 m³
Surface Area = 3.93 m²
Answer:
1. Formula for volume of a cylinder;
V = πr^2h
where pi is 3.14 or 22/7, r is the radius(0.5) which is squared, and h is the height
plug in the actual values;
V = πr^2h
V = 3.14 * 0.5^2 * 0.75
V = 3.14 * 0.25 * 0.75
V = 0.785 x 0.75
V = 0.58875^3 meters or 0.59^3 meters, is the volume. (round to whatever place they covet)
2. Formula for surface area of a cylinder;
SA = 2πr(r + h)
Plug in the actual values:
SA = 2πr(r + h)
SA = 2 x 3.14 x 0.5(0.5 + 0.75)
SA = 2 x 3.14 x 0.5(1.25)
SA = 2 x 3.14 x 0.625
SA = 3.925 meters or 3.93 meters is the surface area.
Can anyone help me with this?
Answer:
brrooo me too i hate bell work
Step-by-step explanation:
good luck tho
Sarah wants to save for a car. She has $4,250 in a savings account earning 1.49%
compounded quarterly. If Sarah has four years until she gets her driver's license,
will she have enough to buy a car? If not, what do you recommend that she do to
reach her goal?
Given the amount Sarh has in her account, she would not have enough money to buy a car. I would advise she increases the amount of money in her account.
What is the future value of the money in her account?The formula for calculating future value:
FV = P (1 + r)^nm
FV = Future value P = Present value R = interest rate m = number of compoundingN = number of years$4250( 1 + 0.0149/4)^(4 x 4) = $4510.50
To learn more about future value, please check: https://brainly.com/question/18760477
please please help me!
Answer:
D: -5,-2,1,5
R:10,11,4,
Step-by-step explanation:
The domain is the set of all the values of x.
The range is the set of all the values of y
a map has a scale of 1 inch = 16 miles. What is the actual distance if the distance on the map is 9 3/4 inches
Answer:
156 miles
Step-by-step explanation:
For every inch, you will have 16 miles
So if you have 9 3/4 inches you can just multiply that with 16
9 3/4*16=156
Our answer is 156 miles
Please help me out!
The radius of a circle is 4 inches. What is the circle's circumference?
Answer:
8π inches or approximately 25.12 inches
Step-by-step explanation:
What's the circumference of a circle?
❖ The circumference of a circle is the distance around a circle.
How do we find the circumference of a circle?
❖ The formula to find the circumference of a circle is 2πr, where r =
radius. We can solve in terms of pi, or approximate pi to 3.14
Solving
[tex]\pi * 4*2[/tex] [tex]\pi *8[/tex] 8π inchesor
[tex]3.14*4*2[/tex] [tex]3.14*8[/tex] 25.12 inchesHave a lovely rest of your day/night, and good luck with your assignments! ♡
Answer:
See below.
Step-by-step explanation:
Hi there!
We are given a circle, and inside that circle, we know that the radius of that circle is 4 inches
We want to find the circumference of the circle.
The circumference (C) is essentially the perimeter of a circle; the formula for the circumference of a circle is 2πr (r is the radius, π is pi)
Since we know the radius, we can substitute that value into the formula
C=2πr, r=4
C=2π*4
C=8π
If you need the answer in terms of pi, then the answer is 8π inches. However, if you need a number, then substitute an approximation for π, which will usually be 3.14 or 22/7
Using 3.14 for example,
C=8*3.14=25.12 inches
Using 22/7 meanwhile,
C=8*22/7=25.14 inches (rounded to the nearest hundredth)
So the answer is either 8π inches, 25.12 inches, or 25.14 inches (depending on how you need it approximated)
Either way, hope this helps!
See more on finding the circumference of a circle given the radius here: https://brainly.com/question/15882336
Adrianna has a piece of fabric in the shape of a parallelogram.
What is the area of this parallelogram?
32 in²
64 in²
96 in²
128 in²
96 in² I think
Make the triangles into a rectangle, find the area and add it to the original square
Answer: 96 in²
Step-by-step explanation: The parallelogram is comprised of two triangles and one square. You could solve this one of two ways.
1) Find the area of the total parallelogram. The area is b*h, where b is the base and h is the height. The base will ALWAYS be the sum of whatever is on the bottom. In this model, we have 4" and 8", meaning b=12". Now, the height is 8" as seen by the vertical line connecting the top and bottom of the figure. 12 times 8 is 96 inches squared.
2) Find the area of the square and two triangles. The area of a triangle is 1/2*b*h, where b is the base (4") and h is the height (8"). Seeing as we have two triangles, we can do this twice, getting 0.5*4*8 + 0.5*4*8 (1/2 is the same as 0.5 btw). 32 inches squared is for the two triangles. Finally, you need to find the square. To review, the area of a square is s^2, so 8*8 is 64. 64+32 is 96 inches squared.
Find the sum.
48 + 45 + 42+. +(-81) + (-84)
Answer:
-810
Step-by-step explanation:
I found the answer but this is correct for khan