Given that the random variable X = number of days a student sleeps in during the week, what is the correct notation for the probability that a student will sleep in at least 3 days?​

Answers

Answer 1

Answer:

X > 3/7

Step-by-step explanation:

X > 3/7

We know that the student sleeps in at least 3 days, but we don't know what the exact number is, we use an inequality where X is greater than or equal to 3 out of the 7 days.

Answer 2
X>3/7


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Related Questions

x is an integer and satisfies the following inequality. 5(x+4)<32 What is the maximum possible value for x?
a.6
b.3
c.2
d.0

Answers

Answer:

c.2

Step-by-step explanation:

5(x+4)<32

5(2+4)<32

10+20<30

Noah and Lin are marketing paper cones to hold popcorn to hand out at parent math night. They want the cones to hold 9 cubic inches of popcorn. What are two different possible values for height h and radius r for the cones?


if h=3, then r=


if r=2, then h=

Answers

Answer: r = 1.69 inches

              h = 2.15 inches

Step-by-step explanation: Volume of a solid is the amount of space contained within a solid.

Volume of a cone is directly proportional to radius and height:

[tex]V=\frac{1}{3}\pi r^{2}h[/tex]

They want the cones to hold the same volume of 9 cubic inches.

If height is 3:

[tex]9=\frac{1}{3}\pi r^{2}3[/tex]

[tex]\pi r^{2}=9[/tex]

[tex]r^{2}=2.864[/tex]

r = 1.69 inches

When height is 3, radius is 1.69 inches for a cone to have 9 cubic inches of volume.

If radius is 2:

[tex]9=\frac{1}{3}\pi (2)^{2}h[/tex]

[tex]h=\frac{9(3)}{4 \pi}[/tex]

h = 2.15 inches

If radius is 2 inches, height of the cone is 2.15 inches.

HELPPPPPPPPPPPPPPPPPPPPPPPPPPPP

Answers

Answer:

[tex] \large \boxed{v > - 1}[/tex]

Step-by-step explanation:

Given the Inequality:

[tex] \large{ \frac{1}{3} (v -2) < v}[/tex]

Step 1

Multiply the fraction or 1/3 in the expression.

[tex]\large{ \frac{1}{3} v - \frac{2}{3} < v}[/tex]

Step 2

Multiply the whole Inequality by 3 to get rid of the denominator.

[tex] \frac{1}{3} v(3) - \frac{2}{3} (3) < 3(v) \\ v - 2 < 3v[/tex]

Step 3

Solve the Inequality for v-term by making v as the subject.

[tex] - 2 < 3v - v \\ - 2 < 2v \\ \frac{ - 2}{2} < v \\ - 1 < v \\ v > - 1[/tex]

Hope this helps! If you have any questions that are related to the answer, feel free to use "Comment" feature!

plz will mark as brainliest ​

Answers

Answer:

30

Step-by-step explanation:

1/2 x (a+b) x h = area

1/2 x ( 40 + x ) x 50 =  1750

1/2 (40 + x )= 1750/50

20 + 1/2x = 35

1/2 x = 35 - 20

x = 15 x 2

= 30

I hope this is right :)

YOU AINT GOT THE ANSWERS MAN IMAO

what is the slope and y-intercept of y=2x-3

Answers

Answer:

slope=2x, y-intercept=-3

Step-by-step explanation:

When in slope intercept, the slope (m) is always the x (and whatever number is in front of it), and the y-intercept (b) is at the end of the equation.

Which expression is equivalent to (60)2 – (12)?? (60 – 12)
(60 - 12) (60 - 12)
(60 + 12)(60 – 12)
(60 + 12)​

Answers

Answer:(60 + 12)(60 – 12)

Step-by-step explanation:

A truck that is 10 ft. by 12 ft. by 8 ft. carries cube shaped boxes that have a
length of 1.5 ft. How many of these boxes can this truck hold?

Answers

Answer:

284.4

Step-by-step explanation:

Divide all numbers by 1.5. example: (10)1.5(12)1.5(81.5= 284.444444 but I rounded it to 284. You're welcome

284 boxes in the shape of the cubes can be fitted in the truck.

If a truck is fitted fully with the cubes, volume of the truck will be equal to the volume of cubes to be fitted.

Dimensions of the truck given in the question,

Length = 10 feet, width = 12 feet and height = 8 feet

Since, volume of a cuboid (shape of a truck) is given by the expression,

Volume = Length × Width × Height

Therefore, volume of the truck = 10 × 12 × 8

                                                   = 960 feet³

Volume of a cube is given by the expression,

Volume = (side)³

Therefore, volume of the cube with side length 1.5 feet will be,

Volume of a cube = (1.5)³

                              = 3.375 cubic feet

Let the number of cubes fitted in the truck = x

Therefore, volume of 'x' cubes = (3.375x) feet³

Since, volume of the truck = Volume of the cubes fitted

3.375x = 960

x = [tex]\frac{960}{3.375}[/tex]

x = 284.44

x ≈ 284

     Therefore, 284 boxes in the shape of the cubes can be fitted in the truck.

Learn more,

https://brainly.com/question/14912884

A number is 12 more than the other. Find the numbers if their sum is 48​

Answers

Answer:

let one number be x and the other be x + 12

sum = 48

x + x + 12 = 48

2x + 12 = 48

2x = 48 - 12

2x = 36

x = 36 by 2

x = 18

therefore x = 18 and x+12= 18+12=30

so the answer is 18 and 30

Have a good day! ^^

Step-by-step explanation:

10 + what equals -6.2





PLEASE HELP ME ASAP!!!!!!!!!!!!;))

Answers

let “what” be represented by x:
10 + x = -6.2

subtract 10 on both sides to get:
x = -16.2

your answer is -16.2! hope this helps!

MORE KHAN ACADEMY! HELP ME PLEASE!

6/3+(-1/6)=?

Answers

Answer:

[tex]1\frac{5}{6}[/tex]

Step-by-step explanation:

6/3 + (-1/6) = 2 + (-1/6) = 2 - 1/6 = [tex]1\frac{5}{6}[/tex]

Answer:

If these are fractions the answer is 1 5/6

If they are not fractions the answer is 1.83

in triangle ABC with vertices A(4,5),B(-2,1) and C(0,3),E and F are midpoints of sides AB and AC resp . then, find coordinates of E and F​

Answers

Answer:

The answer is

E=(1, 3)

F=(2,4)

Step-by-step explanation:

When E is midpoint of AB

Then

[tex]e = ( \frac{4 + ( - 2)}{2} . \frac{5 + 1}{2} ) \\ = (1.3)[/tex]

By this way we can find F

[tex]f = ( \frac{4 + 0}{2} . \frac{5 + 3}{2} ) \\ = (2.4)[/tex]

I am a math teacher If you need any explanation you can communicate with me on Whats on this number +201557831028

I NEED HELP ASAP Identify the property used:
144x12=12x144

Answers

Answer: COMMUTATIVE PROPERTY OF MULITIPLICATION

Step-by-step explanation: the commutative property is when the numbers are basically swapped

Gl on your assignment :)

List one way you can multiply polynomials by polynomials.
a. Boxes
b. Vertically
c. Horizontally
d. All of the above

Answers

Answer:

a

Step-by-step explanation:

The answer is letter A

James recently got a credit card. The APR on the card is 19.8%. What is the monthly interest rate?
A. 1.65%
B. 7.8%
C. 12%
D. 19.8%

Answers

The answer is A.

Step-by-step explanation:

ARP means Annual Percentage Rate. Annual means yearly and there are 12 months in a year so divide 19.8 by 12 and you get 1.65.

Solve the simultaneous equations
5x + 3y = 41
2x + 3y = 20
Do not use trial and improvement

Answers

5x + 3y = 41
2x + 3y = 20
Solve 3y
-> 3y = 41 - 5x
Substitute
2x + 41 - 5x = 20
-3x = 20 - 41
= -21
x= 7
Substitute
2x + 3y = 14 + 3y = 20
3y = 6
y = 2
=> x=7, y=2

The solution to the system of equation is (7, 2)

Using the simultaneous equation:

5x + 3y = 41

2x + 3y = 20

using elimination method

Subtract equation 1 from 2 to have:

5x - 2x = 41 - 20

3x = 21

x = 21/3

x = 7

Substitute x = 7 into equation 1 to get y

5x + 3y = 41

5(7) + 3y = 41

35 + 3y = 41

5y = 41 - 35

3y = 6

y = 6/3

y = 2

Hence the solution to the system of equation is (7, 2)

Learn more here: https://brainly.com/question/15165519

write an equivalent fraction for each whole

Answers

Answer:

If the numerator is divisible by the denominator, the fraction is equivalent to a whole number. In other words, if you can divide the numerator by the denominator without any remainder, the fraction is equivalent to a whole number.

Step-by-step explanation:

If it takes 2 cups of sugar for 24 cookies, how many cups of sugar will it take for 72 cookies?

Answers

i think it’s 6 cups

Answer:

6

Step-by-step explanation:

72/24=3

3*2=6

Find the measurements of ∠A, ∠B, ∠C, ∠E, ∠F, ∠G, and ∠H. 66°=∠D


∠A= ∠E= ∠H=
∠B= ∠F=
∠C= ∠G=

Answers

Answer:

The answer is

[tex] < a = < e = < h = < c = < g = 66 \\ < b = < f = 114[/tex]

Step-by-step explanation:

I am a math teacher If you need any explanation you can communicate with me on Whats on this number +201557831028

A clerk at a local camera shop earns a 5% commission on all sales. How much commission does the clerk earn on a $500 sale?

Answers

Answer:

she earns $25.00 commission

Step-by-step explanation:

.05×500=25

the volume of a rectangular prism is 36x6y8. the length of the prism is 4x3y5 and the width of the prism is 3xy2. what is the height of the prism?

Answers

Answer:

need the points sorry

Step-by-step explanation:

jesus

Solve for w

-w + 181 = 128

w = ____

Answers

w = -53
when you add negative numbers its basically subtracting

Please help me with this first answer gets brainliest

Answers

Answer:

multiply both sides by 17

your supposed to do the opposite of the symbol given

Step-by-step explanation:

Find the domain and range for f(x)=pi cos(x)

Answers

Domain of f(x) = pi cos x is ALL REAL NUMBERS.

The range of f(x) = pi cos x is [-1, 1].

Have you ever devised a way to solve a problem? How?

Answers

Answer:

What kind of problem?

Step-by-step explanation:

If yz = 0.7, what is the measure of α to the nearest degree?

Answers

Answer:

.9

Step-by-step explanation:

mehjgsgwqididhdgascccknska

Answers

Answer:

Yo, thx for the free points man

Step-by-step explanation:

Someone plz help me I will give brainliest

Answers

Answer:

2.25x2+2x1.00+1.50=8, 10-8 =$2.00

Step-by-step explanation:

Answer:

5.5

Step-by-step explanation:

solve for x!!!!!!!!!!!

Answers

Answer:

22.65728

Step-by-step explanation:

29*tan(38 degrees) = 22.65728

22.65728 is the answer

help. pls. i will mark brainliest.

Answers

Answer:

pretty sure its b.

hope this helps!

Answer:

i think its none of the above

Step-by-step explanation:

because it can't be vertical since they need to be on opposite sides

it's not complementary because it doesn't equal to 90

it can't be supplementary because line D is not straight

so that's why i think it's none of the above

please l, I really need help like ASAP. my thing ends in 5 minutes!!!!​

Answers

Answer:

it would be (-7,-6)

x=-7, y=-6

Step-by-step explanation:

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