Mathematics High School

how know ????????????

Answers

Answer 1

Answer:

0.16

Step-by-step explanation:

AND = Probability(of 1)*Probability(of 2)

OR = Probability(of 1)+Probability(of 2)

probability of spinning red = 0.2 or 20%

probability of NOT spinning red = 0.8 or 80%

The question says "AND" so 0.2 * 0.8 = 0.16 or 16%

Hope this helps!!!

Please mark as brainliest!!!

Related Questions

Solve the inequality -4x +1 > 13

Answers

Answer:

The inequality is x is less than negative 3.

Answer:

x < -3

Step-by-step explanation:

. subtract 1 from both sides.

. subtract the numbers

. divide both sides by the same factor and flip the relation

because the factor is negative

. cancel the terms that are both in the numerator and the denominator

. divide the numbers

.then you get youre solution

-9<2x+1<5

A. -5 B. -4 C. 4>x>-3
D. 5>x>-2

Answers

Answer:

Step-by-step explanation:

- 9 < 2x + 1

- 10 < 2x

X > - 5

2x + 1 < 5

2x < 4

X < 2

Find the value of x in the parallelogram below. Enter each line of work as an equation.

Answers

Answer: 110

Step-by-step explanation:

Adjacent angles of a parallelogram are supplementary, so [tex]70+x=180 \longrightarrow x=110[/tex]

What is the area of a regular nonagon if its apothem
has a length of 6 feet and each side has a length of
7.2 feet?

Answers

Answer:

194.4

Step-by-step explanation:

Formula for finding the area of any polygon :

number of sides (n) x 0.5 x length of sides (s) x apothem (a)

Area = 9 x 0.5 x 7.2 x 6 = 194.4

hope this helps :)

can someone do this for me please?! Just the answer pls

Answers

Answer:

1 is A. 4

2 is Center: (-3, -4) and radius: 7

3 is C

Let me know if you do change your mind and want work shown !

Luna works at a party supply store. Today, she is filling balloons with helium for the store to sell. She accidentally overfilled the first few balloons and they popped! If t is the total number of balloons she filled, then t–3 is the number of balloons that can be sold. Luna filled 41 balloons today during her time at work.
How many of the balloons Luna filled today can be sold?

Answers

Answer:

x=36,y=108,z=72

Step-by-step explanation:

I've taken this test before
It's on the state mandated test as well so make sure to study quadratics

Find the following ratios for two similar figures.
If the side ratio is 4:17, then the area ratio is.....?

Answers

16:81 Scale factor for the sides of these triangles.
k
=
4
9
.
Therefore the ratio of area will be:
k
2
=
Area Triangle A
Area triangle B
k
2
=
(
4
9
)
2
=
16
81

4. Child care Serena wants to open a licensed child care center. Her state requires there be no more than 12 children for each teacher. She would like her child care center to serve 40 children.
1. How many teachers will be needed? 4
2. Why must the answer be a whole number?
3. Why shouldn’t you round the answer the usual way, by choosing the whole number closest to the exact answer?

Answers

Answer:

People can not be in fractions

The first two numbers in a sequence h are h(1)=2 and h(2)=6

If h is an arithmetic sequence, write a definition for the nth term of h explain or show your reasoning.

Answers

An arithmetic sequence is a sequence of integers with its adjacent terms differing with one common difference. The nth term of the arithmetic series can be defined as hₙ = 4n - 2.

What is an arithmetic sequence?

An arithmetic sequence is a sequence of integers with its adjacent terms differing with one common difference.

If the initial term of a sequence is 'a' and the common difference is of 'd', then we have the arithmetic sequence as:

a, a + d, a + 2d, ... , a + (n+1)d, ...

The nth term of an arithmetic sequence is given by the formula,

aₙ = a₁ + (n-1)d

Since the first term of the arithmetic sequence is 2, while the difference is 4. Therefore, the definition for the nth term of arithmetic sequence,h can be written as,

hₙ = 2 + (n-1)4

hₙ = 2 + 4n -4

hₙ = 4n - 2

Hence, the nth term of the arithmetic series can be defined as hₙ = 4n - 2.

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3. Mohan drives a car at a uniform speed of 60
km/hr, find how much distance is covered in 90
minutes?

Answers

90 km - 60 km in an hour 90 min = 1 hour 30 min 60 / 2 is 30 60 + 30 = 90km

Answer:

Step-by-step explanation:

60 kmhr for an hour and a half

i hour 60 km

half hour 30 km

60 + 30 =90

Write as a percentage.
30/50

Answers

30/50 in a percentage is 60%

please help!!!!!!!!!!

Answers

Answer:

8.4852814

Step-by-step explanation:

x^2=11^2-7^2

x^2=121-49

x^2=72

x=8.4852814

PARALLEL LINES
Find x and y.

Answers

4x = (130 - 2x) so x = 65/3

(3y + 40) + (130 -2x) = 180 because the angles are supplementary

plug in x

3y + 40 + 130 - 2(65/3) = 180

so 3y = 95/3

therefore y = 95/6

Answer:

x = -25
y = -13.33

Step-by-step explanation

To find x
(130 - 2x)° + 4x° = 180°
130 - 2x + 4x = 180
130 - 2x = 180
130 - 180 = 2x
x = -50 ÷ 2
x = -25 answer

To find y
(130 - 2x)° + (3y + 40)° = 180°
130 - 2x + 3y + 40 = 180
170 - 2x + 3y = 180
By putting the vaue of x in the equation
170 - 2(-25) + 3y = 180
170 + 50 + 3y = 180
3y = 180 - 170 - 50
y = -40 ÷ 3
y = -13.33 answer

Hope that helps...

Calculating Binomial Probabilities - Suppose you work for an airline and you are taking reservations for a flight on an aircraft that has 152 seats. You know, based on historical flights trends, that if you sell a single ticket there is a 91% chance that the person with the ticket will actually show up for the flight. You decide to try to make a little extra money by overbooking your flight and you sell 160 tickets hoping that not more than 152 people will actually show up for the flight (note: this is a common business practice! Click here to watch a video that explains why)
Explain how this scenario meets the four requirements in the definition of a Binomial Distribution.
Identify what n and p are in this example
Use technology (StatCrunch, Statdisk, or Excel) to calculate the probability that if you sell 160 tickets for your flight, more passengers will show up than there are seats available (again, the plane has 152 seats total). Post an image of your technology output using the Insert/Edit Image feature in Blackboard (no attachments!)
Based on this probability, do you think it is a wise business practice to oversell your flight in this manner? Explain.

Answers

The probability that if you sell 160 tickets for your flight, more passengers will show up than there are seats available is 0.02

How the scenario meet the requirements?

The scenario meets the following requirements

The value of n is fixed i.e. 160The outcome has two possible values i.e. seats available or notThe chance that a person shows up is the same for each outcome i.e. p = 91%Each observation is independent.

Identify n and p

The given parameters are:

n = 160

p = 0.91 i.e. 91%

x = 152

How to determine the probability?

The distribution is a binomial distribution, and it is calculated using:

[tex]P(x) = ^nC_x * p^x * (1 - p)^{n -x}[/tex]

The probability is represented as:

P(x > 152) = P(153) + ..... P(160)

Using a technology tool, we have:

P(x ≤ 152) = 0.02

Conclusion on the calculation

Probability values less than 0.25 are unlikely probabilities.

Because the probability value 0.02 is less than 0.25, then we can conclude that it is a wise business practice to oversell your flight in this manner.

Answers

Answer:

The correct answer should be C.

Step-by-step explanation:

A. is equal to x² -5.291503x +7

B. is equal to x² +5.291503x +7

C. is equal to x²2 -7

C. is the only one with a negative 7 since (-)(+)= -

Which of the following statements could be translated to the equation n - 5 = -2?

- A number less than five equals negative two.
- The difference between a number and five is negative two.
- If five is subtracted from a number, the result is two.
- Five less a number is equal to two.

please send help :')

Answers

Answer:

Answer would be B

Step-by-step explanation:

First, A doesnt make sense, since it isn't a ineqality.

C doesnt make sense because if 5 is subtracted form a number n, it is -2, not 2.

D doesnt work because 5 less a number (-5) is not 2, it is -2.

So B works, because the difference between n and 5 (n-5) is -2.

his table gives the dimensions for a scale drawing of a house. Every 2 inches on the scale drawing represents 1.5 feet of the original house. Use proportional reasoning to complete the table with the original lengths. A 2-column table with 4 rows. Column 1 is labeled Scale model (inches) with entries 2, 8, 12, 16. Column 2 is labeled Original length (feet) with entries 1.5, a, b, 12. a = b =

Answers

The value of the a and b will be 6 and 9 feet. Every 2 inches on the scale drawing represents 1.5 feet of the original house.

What is unit conversion?

The process of converting the unit form is known as the unit conversion. For example, in the SI unit system, mass is in kg. While in CGS, it is represented in grams.

The given conversion is ;

[tex]\rm 2 \ inch = 1.5 \ feet \\\\ 1 inch = \frac{1.5}{2} \ feet[/tex]

For 8, 12 inches, the values in feet is;

[tex]\rm 8 \times \frac{1.5}{2} = 6 \ feet[/tex]

[tex]\rm 12 \times \frac{1.5}{2} = 9 \ feet[/tex]

Hence, the value of the a and b will be 6 and 9 feet.

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The value a= 6 and b=9.

What is unit conversion?

The process of converting the unit form is known as the unit conversion.

For example, in the SI unit system, distance is in meter while in CGS, it is represented in cm.

Given that:

2 inch = 1.5 feet

1 inch = [tex]\frac{1.5}{2}[/tex]

then, 8 inches =[tex]\frac{1.5}{2} *8[/tex]

= 1.5*4

= 6 feet

again, 12 inches= [tex]\frac{1.5}{2} *12[/tex]

= 1.5*6

= 9 feet

and, 16 inches =[tex]\frac{1.5}{2} *16[/tex]

= 1.5*8

= 12 feet

The value of a & b is 6 and 9 respectively.

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You have been given data about gas prices in 15 states.

2018 Gas Price Data

Max: $2.42

Min: $2.03

Mean: $2.098

Median: $2.06

Mode: $2.04

Variance: 0.0121

Standard Deviation: $0.1098

What is the range of the data for the 2018 data?

Range = maximum value - minimum value

Answers

The range is $0.39 which is the difference of the max value and min value.

What is the median?

A median is a middle number in a series of numbers that have been arranged to lift, and it might be more informative of the set of data than the average. When there are extremes in the sequences that might affect the average of the numbers, the median is sometimes employed instead of the mean.

We have data given:

Max: $2.42

Min: $2.03

Mean: $2.098

Median: $2.06

Mode: $2.04

Variance: 0.0121

As we know, the range = Max value—Min value

Here, Max = $2.42

Min = $2.03

Range = 2.42 - 2.03 = $0.39

Thus, the range is $0.39 which is the difference of the max value and min value.

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Which expression is not equivalent to the other three?

Answers

Answer: Choice B

Explanation:

Choice A simplifies to 9n-8 after combining the like terms -7n+16n to get 9n

Choice C simplifies to 9n-8 for similar reasoning. The n+8n turns into 9n

This shows choices A and C are equivalent to choice D. Choice B isn't the same because 9(n-8) = 9n-9*8 = 9n-72. Use the distributive property.

Answer:

B. 9(n - 8)

Step-by-step explanation:

- 8 - 7n + 16n

-8 (-7n + 16n or 16n - 7n)

-8 + 9n

9n - 8

9(n - 8)

9n - 72

n - 8 + 8n

9n - 8

What percent of 4c in each expression?
*2a

Answers

A percentage is a way to describe a part of a whole. The percentage of 4c that is equal to 0.04c is 1%.

What are Percentages?

A percentage is a way to describe a part of a whole. such as the fraction ¼ can be described as 0.25 which is equal to 25%.

To convert a fraction to a percentage, convert the fraction to decimal form and then multiply by 100 with the '%' symbol.

The percentage of 4c that is equal to 0.04c can be found as,

x% of 4c = 0.04

(x/100) × 4c = 0.04

[tex]x = \dfrac{0.04c \times 100}{4c}[/tex]

x = 1%

Hence, the percentage of 4c that is equal to 0.04c is 1%.

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For questions 2 z 3. simplify each polynomial
2. 3x²+6-2x+5x-4x²+9
3. 2x²+6x-7x+8-3x²+1

Answers

Answer:

2. [tex]-x^{2} +3x+15[/tex]

3. [tex]-x^{2} -x+9[/tex]

Step-by-step explanation:

We add like terms together to simplify

2. 3x²-4x²= -x² -2x+5x= 3x 6+9= 15 all equal to -x²+3x+15

3. 2x²-3x²= -x² 6x-7x= -x 8+1=9 all equal to -x²-x+9

Evaluate the given expressions.
1. 6^4
2. 3^5
3. 4^3
4. 5^5

Answers

Answer:

1. 1296

2. 243

3. 64

4. 3125

To walk to school, Pablo first walks 1/2 kilometer to Tanya's house.
Then Pablo and Tanya walk 3/5 kilometer to school. How far
does Pablo walk to school?

Answers

Answer:

1 1/10

Step-by-step explanation:

1/2 + 3/5

1/2 = 5/10

3/5 = 6/10

6/10 + 5/10 =

1 1/10

Estimate the instantaneous rate of change in the percent of households that used the internet
for electronic banking in the year 2000.

Answers

The instantaneous rate of change in the percent of households that used the internet for electronic banking in the year 2000 is; 6.8%

How to find the instantaneous rate of change?

Formula for instantaneous rate of change is;

f'(x) = (f(b) - f(a))/(b - a)

From the table showing the the percent of households that used the internet for electronic banking in the year 2000, we can find the instantaneous rate of change as;

f'(2000) = (f(2001) - f(1999)]/(2001 - 1999)

f'(2000) = (21.6 - 8)/(2001 - 1999)

f'(2000) = 13.6/2

f'(2000) = 6.8

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9. Find the midpoint of the segment having endpoints (2.9,−4.4) and (4.4,−2.9).

Answers

Answer:

midpoint: (3.65, -3.65)

Explanation:

[tex]\sf (x_m, y_m) = (\dfrac{x_1+x_2}{2}, \dfrac{y_1+y_2}{2})[/tex]

where (x1, y1), (x2, y2) are points

[tex]\rightarrow \sf (\dfrac{2.9+4.4}{2}, \dfrac{-4.4-2.9}{2})[/tex]

[tex]\rightarrow \sf (\dfrac{7.3}{2}, \dfrac{-7.3}{2})[/tex]

[tex]\rightarrow \sf (3.65, \ - 3.65)[/tex]

In the figure below, lines p and q are parallel. What do you notice?
the options are alternate exterior,

alternate interior,

vertical, corresponding

and supplemantary.

Answers

What I notice about the lines p and q that are parallel is that they are both supplementary angles. Lines p and q are parallel because alternate exterior angles are congruent Lines l and m are parallel because same side interior angles are supplementary Lines l and m are parallel because alternate interior angles are supplementary

Can Someone please help me with my math

Answers

Answer: option 2 which is 1.825*10^-7

Step-by-step explanation:

Which graph represents the function f(x) = x| - 2'

Answers

Answer:

the function of y =×+1 is equal to (×,-4)

The graph that has the thinnest triangle is the correct one or C.

Step-by-step explanation:

Simplify the expression. Write your answer as a power.
6¹⁰/6⁴
The simplified expression is

Answers

Answer:

The answer is 6^6

Step-by-step explanation:

When you divide exponents, you actually substract the exponent from the equation

Answer:

[tex]6^4[/tex]

Step-by-step explanation:

Recall the exponent quotient rule [tex]\displaystyle \frac{x^a}{x^b}=x^{a-b}[/tex]

This means that [tex]\displaystyle \frac{6^{10}}{6^4}=6^{10-6}=6^4[/tex]

Which sum or difference is modeled by the algebra tiles? a. (-x2 2x 3) − (x2 − 2x − 1) = -2x2 2 b. (-x2 2x 3) − (-x2 2x 1) = -2x2 2 c. (-x2 2x 3) (-x2 2x 1) = -2x2 2 d. (-x2 2x 3) (-x2 − 2x − 1) = -2x2 2

Answers

The sum or difference modeled by the algebraic tiles is (-x²+2x+3) + (-x²-2x-1) = -2x²+2

How to determine the sum or difference?

From the complete question, we have the following expressions:

(-x²+2x+3) and (-x²-2x-1)

Add both expressions

(-x²+2x+3) + (-x²-2x-1)

Expand

-x²+2x+3 -x²-2x-1

Collect the like terms

-x² -x² + 2x - 2x + 3 -1

Evaluate the like terms

-2x²+2

Hence, the sum or difference modeled by the algebraic tiles is (-x²+2x+3) + (-x²-2x-1) = -2x²+2