Which of these is a discrete random variable?
A.
the average height of the players in a basketball team
B.
the average speed of the runners in a relay team
C.
the number of medals won by a country at the Olympics
D.
the average first-serve percentage of a tennis player
Question 4*
Which of the following is an example of a well-defined set?
A {evayone)
B{young people in the church)
C {good students in my class}
D{vehicles bought from car marts in St. Thomas)
Answer:
D
Step-by-step explanation:
3x^2 +6x +18 = 0
solve by completing the sqaure
Answer:
=
−
±
2
−
4
√
2
x=\frac{-{\color{#e8710a}{b}} \pm \sqrt{{\color{#e8710a}{b}}^{2}-4{\color{#c92786}{a}}{\color{#129eaf}{c}}}}{2{\color{#c92786}{a}}}
x=2a−b±b2−4ac
Once in standard form, identify a, b and c from the original equation and plug them into the quadratic formula.
3
2
+
6
+
1
8
=
0
3x^{2}+6x+18=0
3x2+6x+18=0
=
3
a={\color{#c92786}{3}}
a=3
=
6
b={\color{#e8710a}{6}}
b=6
=
1
8
c={\color{#129eaf}{18}}
c=18
=
−
6
±
6
2
−
4
⋅
3
⋅
1
8
√
2
⋅
3
x=\frac{-{\color{#e8710a}{6}} \pm \sqrt{{\color{#e8710a}{6}}^{2}-4 \cdot {\color{#c92786}{3}} \cdot {\color{#129eaf}{18}}}}{2 \cdot {\color{#c92786}{3}}}
x=2⋅3−6±62−4⋅3⋅18
2
Simplify
Answer:
x=-1+or-i radical 5
Step-by-step explanation:
Which number(s) below belong to the solution set of the inequality? Check all that apply. 11x > 132
Answer:
a
c
Step-by-step explanation:
Note that
> means greater than
< means less than
≥ means greater than or equal to
≤ less than or equal to
11x ≥ 132
divide both sides of the equation by 11
x ≥ 12
this means that the value of x is greater or equal to 12
In the option, the values that fit this condition are 12 and 26
Given
mZLON is a straight angle.
MZLOM = 4x + 30°
mZMON = 8x + 90°
Find mZMON:
Help pls
Step-by-step explanation:
these are supplementary angles
LOM + MON = 180
(4x + 30) + 8x + 90 = 180
12x + 120 = 180
solve for x and then substitute into 8x +90
HALP NEEDED
ILL GIVE BRAINLEIST
The slope of the line that contains the points (1, -1) and (2, 3) is 4. What is the y-intercept?
A. 5
B. 4
C. -4
D. -5
1 pts
Given that XY =4 and YZ =14, find the measure of angle x to the nearest degree.
Step-by-step explanation:
its a triangle so find XZ then use cosine rule to find angle X
2)
A.
B.
Х
f(x)
х
f(x)
0
1
-3
9
2
3
3
-2
4
3
4
- 1
1
4
5
0
0
5
6
1
1
6
7
2
4
C.
D.
х
х
f(x)
3
f(x)
- 1
0
0
2
3
2
3
3
3
0
4
4
3
5
2 0
5
3
6
6
6
3
2
7
Which table does NOT represent a function?
Answer:
0 through -1 because I did all of the in the 4 grade and I am I am in 6
The tables that represent a function are tables having a repetition of values as the domain
Functions and tablesFor a table to represent a function, each value of the domain must have a unique value in the co-domain.This means that the x-variables must not have similar values. From the given tables, you can see that table A has 2 being repeated compared to others.Hence the tables that represent a function are tables having a repetition of values as the domain
Learn more on tables and functions here: brainly.com/question/3632175
(need help ASAP!!! PLS) Are these answers correct?
76 , 76 , 78 , 80 , 80 , 80 , 82 , 82 , 83 , 85 , 85 , 85 , 88 , 88 , 110
82 is the Median
83.867 is the mean
Answer:
Yes.
Step-by-step explanation:
De los 3000 que tenia kristian compro un traje que le costo el 75%¿cuanto le quedo a kristian despues de comprar el traje?
help mee asappp plsssss
The table shows the relationship between the number of strawberries picked from a given number of strawberry plants.
Fill in the missing value in the table.
Number of Plants Strawberries Picked
4 32
6 ___
7 56
9 72
Answer:
48
Step-by-step explanation:
Please help me with this
Answer:
(-1, 2/3).
Step-by-step explanation:
Taking the derivative of f, we get f' = x^2 - 1 = 0. Thus, x = -1 and x = +1.
At the relative max, y = (1/3)(-1)^3 - (-1) = -1/3 + 1 = 2/3.
The relative maximum is at (-1, 2/3).
A binomial with a leading coefficient of 3 and a constant term of -5
Answer:
5x - 5
Step-by-step explanation:
We need to write a bionomial with ,
Leading coefficient = 3 Constant = (-5)Definition of Binomial :-
A expression which contains two terms in it is called a bionomial .Here let the variable be x . So one such bionomial can be ,
→ 5x - 5
• Hence one such bionomial can be 5x - 5.Please and thank you someone help me out
I need 10 more
Answer:
[tex]y=\frac{5}{4} x+1[/tex]
please help.. don't get it
pls help me I will give brainlist
Valerie is asked by her teacher to show the force of gravity with a toy car. How can Valerie use a toy car to demonstrate the force of gravity?
Group of answer choices
Place the toy car on the floor
Lift the toy car onto a shelf
Push the toy car across a table
Let the toy car roll down a ramp
Laura can use a toy car to demonstrate the force of gravity by doing which of these?
Group of answer choices
Letting the toy car roll down a ramp
Lifting the toy car onto a shelf
Placing the toy car on the floor
Pushing the toy car across a table
For an electrically charged object to repel another object, what must happen?
Group of answer choices
The objects must have similar charges.
The objects must have opposite charges.
The objects must touch.
The objects must be very light.
Andrew watches a plane fly overhead. Which of the following observations provides the best evidence that the plane is using energy?
Group of answer choices
The plane is white.
The plane is large.
The plane has wheels.
The plane moves.
Campfires are sometimes used to cook food. Which type of energy from the campfire cooks the food?
Group of answer choices
Sound
Electrical
Light
Thermal
Answer:
1. Letting the toy roll down a ramp
2. Letting the toy roll down a ramp
3. The objects must have similar charges
4. The plane moves
5. Thermal
Step-by-step explanation:
Which is the inverse of the difference of 1/3 - 1/4? A. 0/1
B. 1/12
C. 7/12
D.12/1
Please Help
Answer:
12/1
Step-by-step explanation:
PLEASE ANSWER QUICKLY
Answer:
A
Step-by-step explanation:
what is angle 1? i really appreciate the help
Answer:
53°
Step-by-step explanation:
[tex]m \angle1 = \frac{1}{2} (50 + 56) \degree \\ \\ = \frac{1}{2} \times 106 \degree \\ \\ = 53 \degree[/tex]
In a week, Caidyn earns $27.55 more than half the amount
Maddie earns. How much does Maddie earn per week if Caidyn
Earns $125.95?
Please help me and I’ll try to help you in return
Answer:
Step-by-step explanation:
PLEASE HELP ME PLEASE HELP I NEED HELP
Answer: 9
Step-by-step explanation:
circle formula pi x (rsquared)
R =5 (for all circles)
to find area of all circles multiply the area of one circle by 2. Do this because there are 2 circles on the yard, one whole circle and two half circles, making two circles.
so pi times 25=157.08 (roughly the number is rounded up because the decimal does not end)
now subtract this area from the total area of the rectangle to find the remaining area, which we will fill with wood chips. so 200-157.08=42.92 (using the exact decimal value on my calculator for all calculations, I am rounding them in the explanation.) So now we divide this by 5 because a bag of wood chips covers 5 square feet. 42.92/5=8.58, which we round up to 9, so we need 9 bags of wood chips as our answer.
Good Luck
pleaseeee help
solve for x and y
Answer:
Solution given:
y+135°=180°[sum of opposite angle of a cyclic quadrilateral is supplementary]
y=180°-135°
y=25°
again
2x-1+3x+1=180°[sum of opposite angle of a cyclic quadrilateral is supplementary]
5x=180
x=180/5.x=36
x=36°,y=25°
hi guys, can you please answer this question i'm giving out brainliest and 30 points:)
Answer:
1 centimet
Step-by-step explanation:
Answer:
A Centimeter!
Step-by-step explanation:
Heard of the Acronym
King Henry Died m Drinking Chocolate Milk
K = King = Kilometers
H = Henry = Hectometers
D = Died = Decameters
M = m = meters
D = Drinking = Decimeters
C = Chocolate = centimeters
The metric system is based on the power of ten.
There are 10 Decimeters in a meter
There are 100 Centimeters (your answer) in a meter
There are 1000 Millimeters in a meter
Similarly:
1 Decameter = 10 meters
1 Hectometer = 100 meters
1 Kilometer = 1000 meters
So you can use it for this:
1 Hectometer = (10x10x10x10)cm or 10,000 cm
In this problem I am starting at 10, and multiplying as many tens as I need to get to Hectometer ( refer acronym).
Centimeters to Decimeters = 10
Decimeters to Meters = 10
Meters to Decameters = 10
Decameters to Hectometers is 10
So we have 4 - 10s so we do 10x10x10x10 or 10,000 cm in a Hectometer
1 cm would equal 0.0001 Hectometer
or 1/10,000 of a cm
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
help me in this please
Answer:
35 rows and 35 numbers of plants in a row.
Step-by-step explanation:
Mark as brainliest
an ice cream factory makes 330 quarts of Ice cream in 2 hours how many quarts could be made in 36 hours what was the rate per day
Answer:
multiply UNIT RATE 33 by 36 to answer your first question.
Step-by-step explanation:
1. for how many hours in a work day is the factory manufacturing ice cream?
2. Obviously the UNIT rate is 33 qts/hour.
3. In 36 hours, the factory could produce 36 times what it produces in one hour. In other words, multiply UNIT RATE 33 by 36 to answer your first question.
Two pyramids are similar. Their base edges are a ratio of 3:5. Find the ratio of their surface area.
Answer:
9/25
Step-by-step explanation:
Two pyramids are similar. Their base edges are a ratio of 3:5. Find the ratio of their surface area.
The ratio of the surface area is calculated as the square of the ratio of the edges
Hence,
Ration of surface area = 3²/5²
= 9/25
I need help I don’t understand how I’m supposed to do this
Estimate.
4,754 dived by 1.9 =
Answer:
2502.1
Step-by-step explanation:
4754/1.9
= 2,502.1
Hence the andwer is 2502.1
Please help I cant fail this math test thank you I appreciate it
9. Bahama Bucks sells ice for $2.89 per
bag. Which equation best represents y,
the total cost of x bags of ice?
A y = 2.89 + x
C X = 2.89 + y
B X = 2.89y
D y = 2.89x
Answer:
d
Step-by-step explanation:
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