Answer:
where is the figure and the picture?
One pipe can fill a swimming pool in 10 hours, while a second pipe can fill the pool in 6 hours. If the second pipe is turned on 2 hours after the first, how long will it take to fill up the pool?
Answer:
6 4/5 hours
Step-by-step explanation:
If one pipe can fill the pool in 10 hours, then it can fill 1/5 of the pool in 2 hours.
If two pipe's can fill the pool in 6 hour's, then it can fill 1/5 of the pool 1 1/5 hours.
So:
6-1 1/5=4 4/5
4 4/5+2=6 4/5
Mr. Rawlins graded 11 students' tests with the following results. 88, 76, 81, 92, 95, 65, 77, 86, 90, 88, 83 A box and whisker plot of these scores would show that 25% of the students earned a score greater than or equal to what number?
Answer:
90
Step-by-step explanation:
min is 65
median is 86
quartile 1 is 77
quartile 3 is 90
max is 95
highest 25% of data resides between quartile 3 and max
HELLLP PLZZZZ , i need to anwer this quastion is a major grade :((
Answer:
I think it might be C but I dont know . Hope its right !
Step-by-step explanation:
Evaluate the expression for x = 2, y =-1, and z = 4.
let u=(5 -12) and c=-3 what is cu?
a)39
b)-39
c)21
d)51
Answer:
C) 21
Step-by-step explanation:
5-12=-7
cu=(-3)(-7)=21
What is the value of z?
No links please!!
9514 1404 393
Answer:
z = 14.4
Step-by-step explanation:
The angle bisector divides the sides proportionally.
z/12 = 6/5 . . . . . . . . . write a proportion*
z = 12(6/5) = 72/5 . . . . . multiply by 12
z = 14.4
_____
* We consider the proportion easier to solve if the unknown is in the numerator. Then the solution is found by multiplying the equation by that denominator.
Find the expected value of the winnings
from a game that has the following
payout probability distribution:
10
Payout ($) 0 2 4 6
Probability 0.5 0.2 0.15 0.1 0.05
Expected Value = [?]
Round to the nearest hundredth.
Answer: 2.1
Step-by-step explanation:
The expected value of the winnings from the game is $2.1.
How to determine the expected value?The payout probability distribution is given as:
Payout ($) 0 2 4 6 10
Probability 0.5 0.2 0.15 0.1 0.05
WE need to find the expected value of the winnings from the game.
The expected value is then calculated as:
E(x) = x P(x)
This gives
E(x) = 0 * 0.5 + 2 * 0.2 + 4 * 0.15 + 6 * 0.1 + 10 * 0.05
E(x) = 0 + 0.4 + 0.60 + 0.6 + 0.5
Evaluate the expression
E(x) = 2.1
Hence, the expected value of the winnings from the game is $2.1.
Read more about expected values at:
brainly.com/question/15858152
#SPJ2
HELP !!!!!!!!!!!!!!!!!!!!!!!
Answer:
25[tex]\pi[/tex] Or 78.5 units³
Step-by-step explanation:
1/3πr²h
1/3xπx25x3=25π or 78.5
Find the volume of the Cone.
____________________Solution :-Given Information :- Radius of the Base of Cone = 5 unitsRadius² = 5² = 25 unitsAltitude = 3 units Value of π = 3.14To Find :- Volume of Cone. Formula Used :- Volume of Cone = [tex] \sf \frac{1}{3} \pi {r}^{2} h [/tex] Calculation :-We will substitute the given values in the formula,
⇒ Volume of Cone = [tex] \sf \frac{1}{3} \pi {r}^{2} h [/tex]
Substituting the values, We get,
⇒ Volume of Cone = [tex] \sf \frac{1}{3} \times 3.14\times 25 \times 3 [/tex]
On further calculating, We get,
∴ Volume of Cone = [tex] \sf 78.5 units³ [/tex]
____________________Final Answer :-Volume of Cone = [tex] \bf 78.5 units³ [/tex]
____________________Helppp Pleaseeeee???
Answer:
Prism A
Step-by-step explanation:
5 times 4 times 4 is 100
7 times 3 times 3 is 63
The difference is 17
Instructions
Write a lesson!
You are going to write/ teach a Math Lesson. Requirements are as follows:
You will select a lesson we learned this year. (approved by teacher) Please explain the lesson fully. Make sure to include the lesson and topic.
You will describe the skills and concepts learned in the lesson detailing steps and using examples.
You will use your own descriptions and terminology of the lesson as you have understood the material.
You may use Power Point or any other method, creativity goes a long way!
don’t know what type of math you want me to do pls tell me :(
The area of a triangle is 24 square inches. What is the height of the triangle if the base length is 4 inches? (5 points) 6 inches 8 inches 12 inches 20 inches
9514 1404 393
Answer:
12 inches
Step-by-step explanation:
The area is given by the formula ...
A = 1/2bh
Fill in the given values and solve for the height.
24 in² = 1/2(4 in)h
h = (24 in²)/(2 in) = 12 in
The height of the triangle is 12 inches.
Answer:
12 inches
Step-by-step explanation:
Area = [tex]\frac{1}{2}bh[/tex]
24 = [tex]\frac{1}{2} * 4 * h[/tex]
24 = 2h
h = 12 inches
arrange the matrices in increasing order of their determinant values.
Answer:
Step-by-step explanation:
The order of the matrices in increasing order of their determinant values will be Third Matrix <Fourth Matrix <Fiftyh Matrix <First Matrix <Second Matrix <Sixth Matrix.
What is Determinant ?The determinant is defined as a scalar value which is associated with the square matrix. If X is a matrix, then the determinant of a matrix is represented by |X| or det (X).
The determinant of the matrices are as follows
1. -10
2. 17
3.-78
4.-30
5. -18
6. 23
Therefore the order of the matrices will be
Third Matrix <Fourth Matrix <Fiftyh Matrix <First Matrix <Second Matrix <Sixth Matrix
To know more about Determinant
https://brainly.com/question/4470545
#SPJ2
What is the area of the irregular figure drawn on the coordinate plane?
Answer:
71 units²
Step-by-step explanation:
The figure has been divided into three as shown on the figure attached below:
The area of the irregular figure = Area of A + Area of B + Area of C
✔️Area of A = L*W
L = 5 units
W = 2 units
Area of A = 5*2 = 10 units²
✔️Area of B = L*W
L = 7 units
W = 3 units
Area of A = 7*3 = 21 units²
✔️Area of C = L*W
L = 10 units
W = 4 units
Area of A = 10*4 = 40 units²
✅Area of the irregular figure = 10 + 21 + 40
= 71 units²
The FDA is testing a new ointment designed to deliver 3.5 micrograms of active ingredient to each square centimeter of skin. Nine(9) subjects apply the ointment and then six hours later that amount of drug absorbed by the skin is measured. To determine if there is enough evidence that the mean amount of drug absorbed is different from 3.5 micrograms at the α=0.01 significance level, we would need to compare our test statistic to what critical
Answer:
t(c) = 3.355
Step-by-step explanation:
We assume a normal distribution, and with sample size n = 9 we should follow a t -student test on both tails since the FDA is interested in determining if the amount of drug absorbed is different from 3.5 micrograms.
Therefore if α = 0,01 that means that confidence interval is 99 % or 0,99
Finally with α/2 = 0,005 and 8 degrees of freedom we find in t-student table t(c) = 3.355
PLZ HELP I WILL GIVE BRAINLIEST ANSWER EACH QUESTION PLZ THANKS!!!!!!
Answer:
1. 12
2. 18
3. 2
4. 10
5. 8
6. 1
7. 12
8. 81
Step-by-step explanation:
Numerator and denominator have to be multiplied by the same number
For the 1st one
4 * 4 = 16
Therefor multiply 3 *4 = 12
Number 2
3 * 9 = 27
Therefor muliply 2 * 9 = 18
HELP! Urgent! PLZ Needed Now!
Answer / Explaination:
An equation that represents this problem is b = 52h.
A linear model that represents this equation would look as such (see below)
To predict how many boxes would be produced after an 8 hour shift, you can look at the graph (see additional attatchement) or substitute 8 in for h in the equation.
b = 52(8)
b = 416
Hannah drove at a rate of 750 km in 9 hours. If Hannah drives at a
constant speed, about how many hours will it take her to drive 175 km?
Answer:
Step-by-step explanation:
Find the equation of the line passing through (2, -1) and parallel to
Y=-3x - 1.
If p = -6, what does p + 4 equal?
Answer:
-2.
Step-by-step explanation:
p + 4 with p being -6 is basically -6 + 4, which equals -2.
Answer:
-2
Step-by-step explanation:
-6 + 4 = -2
Give the most precise selection
for the quadrilateral with the
following vertices.
P(0,0), Q(2a, 2b), R(20,2b), S(20,0)
Answer:
I think square
Cause it is having 4 sides and in ur question the were 4 vertuces so i think its a square
Answer:
I think A
a parrallelogram
The center of a circle is at (4,-3) and it’s radius is 3 units, which point lie on the circle
Answer:
Any set of (x , y) whose distance from (4, -3) is 3 units lies on the circle.
Step-by-step explanation:
To find the distance , use the formula
[tex]distance = \sqrt{(x_2 - x_1)^2 + (y_2 -y_1)^2}[/tex]
If distance < 3, (x, y) lies inside the circle.
If distance > 3, (x, y) lies outside the circle.
If distance = 3 (x, y) lies on the circle.
1.What is (f-g)(x) ?
f(x)=x^4-3x^2+5x-7
g(x)= x^3-3x^2+3x-1
Answer:
that my answer
brainlist me
Answer quick please :)
a cruise ship heads due west from a port 3 miles directly south of San Francisco. If the ship is travelling at a constant rate of 17 mph, how fast is the distance between the ship and san francisco changing 1 hour after leaving port
Answer:
16.7
Step-by-step explanation:
speed is constant at 17 mph
Distance covered after one hour = 17 miles
Distance between port and San Francisco = 3 miles
Speed at which distance changes 1 hour after leaving port :
r² = 17² - 3²
r² = 289 - 9
r = √280
r = 16.733
= 16.7 (nearest tenth )
HELLO CAN SOMEONE HELP ME PLOT THIS POINT? TY :)
It would be at (7,5)
Mi mamá Rosa Amelia, asistió al Hospital cercano a su casa, luego de hacer atendida, el medico tratante le dio tres tipos de pastillas que tomar;la pastilla rojas cada 12 horas, la pastilla amarilla 8 horas y la pastilla blanca cada 7 horas. Si empieza a tomarse la pastilla en el día de hoy a las 12:00 del mediodía Cuándo volverá a tomarse cada pastilla otra vez?
Answer:
La próxima pastilla roja será a las 12:00 a.m.
La próxima pastilla amarilla será a las 8:00 p.m.
La próxima pastilla blanca será a las 7:00 p.m.
x+y=11
x-y=-5
Please anyone help?
Answer:
3,8
Step-by-step explanation:
you can use the app photo math. just take a picture and you will get your answer
Answer:
[tex]x=3[/tex]
[tex]y=8[/tex]
Step-by-step explanation:
The process of elimination is a method of solving a system of equations. This process includes manipulating a system of equations such that one variable present in both equations has its coefficients as additive inverses. When one adds the equation, this variable will cancel, one can solve for the other variable using inverse operations, and then back solve for the eliminated variable.
[tex]\left \{ {{x+y=11} \atop {x-y=-5}} \right.[/tex]
As one can see, the coefficients of variable (y) are already additive inverses of each other (1), (-1), therefore, one can add the systems right away.
[tex]\left \{ {{x+y=11} \atop {x-y=-5}} \right.[/tex]
[tex](x)+(y)+(x)+(-y)=(11)+(-5)[/tex]
Simplify,
[tex]2x=6[/tex]
Inverse operations,
[tex]x=3[/tex]
Backsolve for (y), substitute the value of (x) into one of the original equations to find the value of (y),
[tex]x+y=11\\[/tex]
Substitute,
[tex](3)+y=11[/tex]
Inverse operations,
[tex]y=8[/tex]
The box above is 15 centimeters long,
4 centimeters wide, and 3 centimeters tall. What is the length of the diagonal s of the bottom side?
O:44 cm
O:14.5 cm
O :15.5 cm
O :19 cm
Answer:
It should be b(14.5), or c
Step-by-step explanation:if you think about it its like the same length for the top of the box
A young entrepreneur wants to set up a lemonade stand at a busy intersection. Customers arrive at a rate of 38 customers per hour according to a Poisson distribution. Customers will be served at the average rate of 58 customers per hour with exponential service times. What is the average utilization rate (%) of the entrepreneur
Answer:
65.5%
Step-by-step explanation:
Arrival rate, λ = average number of customers per hour = 38
Servive rate, μ = number of customers attended to per hour = 58
Utilization factor, ρ = λ / μ
ρ = 38 / 58
ρ = 0.6551724
Utilization rate (%) = 0.6551724 * 100% = 65.5%
Solve for x 8-2x = 5( x4)