The probability distribution for a
random variable x is given in the table.
X
-5
3
-2
0
12
3
Probability
.17
-13
1.33
.16
. 11
. 10
Find the probability that x<0

Answers

Answer 1

Answer:

0.50

Step-by-step explanation:

X ___ - 5 ___ 3 __ - 2 __ 0 __ 12 __ 3

P(x) __0.17_0.13_0.33 _0.16 _0.11 _0.10

P(x <0) = p(x = - 2) + p(x = - 5)

P(x < 0) = 0.33 + 0.17

P(x < 0) = 0.50

Answer 2

Answer:

the answer is 0.79

Step-by-step explanation:

.17+.13+.33+.16=0.79 they are asking for less then or equal to 0 so just add all the percents of those numbers and boom hope that helped :)


Related Questions

Darren reads 5 pages of a book each morning
and 7 pages of a book each evening.
How many pages will he read in seven days?

Answers

7+5=12
12x7=84
He will read 84 pages within seven days.

(C) Find the arithmetic mean of given data
12, 10, 15, 14, 16, 25, 18, 22​

Answers

Answer: Mean- 16.5

Step-by-step explanation:

PLEASE help me ASAP with this QUETION!!!!!!!!!!

Answers

Answer:help with what

Step-by-step explanation:

You need to say

find the volume of the irregular figure

Answers

Answer:

V = 672cm^3

Step-by-step explanation:

V of irregular figure = lwh + lwh

V = 7(3)(2) + 10(7)(9)

V = 42 + 630

V = 672cm^3

volume of a cone is 48 pi cubic inches the cone has a height of 36 inches Mark finding the radius of the cone complete his work

Answers

Answer:

c or take the square root of both sides

a or 2 inches

Step-by-step explanation:

The length of a rectangle is (x + 3) inches long, and the width is 3.4
inches. If the area is 15.3 square inches, which equation can be used to find
x? *

A. 3.4(x + 3) = 15.3
B 3.4x + 3 = 15.3
C. 3(x + 3.4) = 15.3
D. 3x + 3.4 = 15.3

Answers

Answer:

A)

Step-by-step explanation:

fill in the blank. 1/9 ? -4
A .>
B. <
C. =​

Answers

Answer:

The answer is A.

Step-by-step explanation:

1/4 is greater than 0, since -4 is less than 0 1/4 is greater

does the data suggest a linear, quadratic, or exponential model?

Answers

Exponential model because it's increasing rapidly.

The cost price of an article is $40 and the profit is 20 per cent of the cost price.
What is the selling price of the article?

Answers

32 dollars since
40x0.20=8
40-8=32

Find Angle RPQ
Number are 99 and 111

Answers

Step-by-step explanation:

99+111+arc QR=360°

arc QR=360-210 =150°

again,

RPQ=150/2{inscribed angle is half of it's arc}

75°

stay safe healthy and happy..

can someone help me lol??

Answers

Answer:

X = 4.3, -0.3

Step-by-step explanation:

Write the answer with like a line on top of the 2 threes that you see

Mark me as brainliest!!

PLEASE HELP I WILL MARK U AS BRAINLIST !!!!

The length of each of the legs of an isosceles triangle is represented by the expression 5x-2 inches. The length of the base of the isosceles triangle is represented by the expression 3x +1 inches. The perimeter of the isosceles triangle is 42 inches.

determine whether each equation represents the perimeter of the isosceles triangle , in inches .

select yes or no for each equation

A. 13x-2=42 yes or no
B. (10x-2)+(3x+1)=42 yes or no
C.2(5x-2)+2(3x+1)=42 yes or no
D.5x-2+3x+1+5x-2=42 yes or no

THERE CAN BE MORE THAN ONE ANSWER.
thank you

Answers

Answer:

A.No

As,

5x - 2 + 5x - 2 + 3x + 1 = 13x - 3 = 42

But here,

13x - 2 which is not equal to 13x - 3

Hence, it's wrong.

B. No

As,

5x - 2 + 5x - 2 + 3x + 1 = (10x - 4) + (3x + 1) = 42

But here,

(10x - 2) + (3x + 1) which is not equal to (10x - 4) + (3x + 1)

Hence, it's wrong.

C. No

As,

5x - 2 + 5x - 2 + 3x + 1 = 2(5x - 2) + 3x + 1 = 42

But here,

2(5x-2)+2(3x+1) which is not equal to 2(5x - 2) + 3x + 1

Hence, it's wrong.

D. Yes

As,

5x - 2 + 5x - 2 + 3x + 1 = 42

Also,

5x-2+3x+1+5x-2 equal to 5x-2+3x+1+5x-2

Hence, it's correct.

Answer:

A and D is right

Step-by-step explanation:

I did the quiz and use the answer and it was right

a whale costs $14700 and depreciates in value by 8% per year. When will the whale be worth $100

Answers

Answer:

x = 60

Step-by-step explanation:

The question is asking

$14,700 * (1 - 8%)^x = $100

$14,700 * (1 - 0.08)^x = $100

$14,700 * (0.92)^x = $100

(0.92)^x = $100/$14,700

log(0.92^x) = log($100/$14,700)

x * log(0.92) = log(0.0068027)

x = log(0.0068027)/log(0.92)

x = 59.85

Since this question is asking in terms of years, we always round up (in this case to 60), as it won't fully be worth $100 by the beginning of the 59th year.

Select the correct answer.
What is the value of x in the triangle?

Answers

Answer:

D. 5√3

Step-by-step explanation:

tan 30° = x/15

or, 1/√3=x/15

or, x= 15/√3 = 5√3

Answer:

D

Step-by-step explanation:

Using the tangent ratio in the right triangle and the exacy value

tan30° = [tex]\frac{1}{\sqrt{3} }[/tex] = [tex]\frac{\sqrt{3} }{3}[/tex] , then

tan30° = [tex]\frac{opposite}{adjacent}[/tex] = [tex]\frac{x}{15}[/tex] = [tex]\frac{\sqrt{3} }{3}[/tex] ( cross- multiply )

3x = 15[tex]\sqrt{3}[/tex] ( divide both sides by 3 )

x = 5[tex]\sqrt{3}[/tex] → D

Solve the simultaneous equations
y=9-x
y=2x^2+4x+6

Answers

Answer:

check work below

Step-by-step explanation:

A( 3 ,6)  and  B(1/2,17/2)

A is (3,6) B 1/2 17/2

PLEASSEEEE HELPPP ME HURRRYY

Answers

Answer:

8   =     D

9 = D

10 = D

Step-by-step explanation:

For 8, a straight line is 180 degrees, and if PQS is already x+55, then RQS is also x, so it would be 2x +55 = 180

For 9, surface area is just area of the sides of a shape, so (3*15)*2 + (6*3)*2 + (5*6)*2 which equals 30 +36 + 60, which is 126.

For 10, the volume is the width*length*height, so 4*4*11 = 16*11 = 176, and because there are 6 rectangular prisms, 176*6 which is equal to 1056.

Find the mean. {21, 10, 27, 24, 15, 7, 19, 24, 31, 15, 11, 24}​

Answers

Answer:

19 is your answer

Step-by-step explanation:

Answer:

19

Step-by-step explanation:

The mean of a set of numbers is the sum divided by the number of terms.

How to Find the Mean:

The mean is the average of the numbers. It is easy to calculate: add up all the numbers, then divide by how many numbers there are. In other words it is the sum divided by the count.

A cell phone company offers two different monthly text-messaging plans as shown in the table below. For what number of text messages will both plans cost the same?
A. 55 messages
B. 85 messages
C. 110 messages
D. 140 messages

Answers

Answer:

110

Step-by-step explanation:

Solve the following quadratic equation for all values of xx in simplest form.
5(2x+1)^2+6=26 cant figure this out!!

Answers

Answer:

x=1/2 and x=-3/2

Step-by-step explanation:

5(2x+1)^2+6=26

5(2x+1)^2=20

(2x+1)^2=4

2x+1=±2

Now make two equations and solve both for x:

2x+1=2

2x=1

x1=1/2

2x+1=-2

2x=-3

x2=-3/2

Jeff bought 4 oranges and 7 apples for a total of $4.88. Gene bought 12 oranges and 8 apples for a total of $7.88. What is the cost of each orange and each apple?

Answers

4x+7y=4.88 -> mult by -3 -> -12x-21y=-14.64
12x+8y=7.88
-12x-21y=-14.64
Add the two above equations together, the y will be left:
-13y=-6.76
y=0.52 —> cost of each apple (plug back into one of original equations, I chose 4x+7y=4.88:
4x+7(0.52)=4.88
Solve for x.
x=0.31 —> cost of each orange

Jeffrey's recipe for oatmeal muffins calls for 2 1/4 cups of oatmeal and makes two dozen muffins. If he makes 1 1/2 dozen muffins for a club meeting, how much oatmeal will he use?

Answers

Answer:

1 1/8 cups of oatmeal b/c 2 1/4 ÷ 2 = 1 1/8 ( one and one eighth)

Step-by-step explanation:

If its not 1 1/8 then its 3 3/8 (i saw that answer on quizziz)

What is the volume, in cubic ft, of a rectangular prism with a height of 17ft, a width of
10ft, and a length of 16ft?

Answers

Answer:

2,720 ft³

Step-by-step explanation:

17x10x16 = 2,720

HELP ASAP FIRST PERSON WITH CORRECT ANSWER GETS BRAINLIEST

Which statements about the triangles are correct? Select two that apply.

A. Triangle P is similar to triangle Q.
B. Triangle P is a reflection and a translation of triangle Q.
C. Triangle P is not similar to triangle Q.
D. Triangle P is a reflection and dilation of triangle Q.
E. Triangle P is a translation and a dilation of triangle Q.

Answers

Im pretty sure its C if not E

Questions a-f in picture fast please with explaination for work

Answers

Just download Symbolab on your android or iPhone and you’ll get the answer your looking for.

What expression can be used to find the quotient of 1,512 ÷ 24​

Answers

Answer:

63

Step-by-step explanation:

What is a formula for the nth term of the given sequence ? 10,-20,40...

Answers

The answer is c bro


if u need the solution i will give it to u

Which expression represents a rational number?
Please help right now!!!

Answers

Answer:

A

Step-by-step explanation:

Every integer is a rational number; a whole number. The square root of 49 equals 7, which is the only outcome giving an integer as an answer.

Classify the expression by degree. -6x5 + 7x4 - 5x2

2
3
4
5

WILL MARK BRAINLEST

Answers

Answer:

-6x5 + 7x4 - 5x2

Step-by-step explanation:

Answer:

6x5=30+7×4=38 combined it equals 58 5x2=10 58-10=48

Find the Area of the Trapezoid below *

Answers

Answer:

Hello! answer: C. 96 sq. cm

The points (12, 23) and (14, 45) lie on a line. What is
the slope of the line?

Answers

Answer:

slope= 11

Step-by-step explanation:

(12,23) = (x1,y1)

(14,45) = (x2,y2)

Now,

slope(m)= (y2-y1)/(x2-x1)

=(45-23)/(14-12)

=22/2

=11

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