Whats the difference between a closed eye and an open eye in algebra

Answers

Answer 1

Answer:

If the inequality is "strict" ( < or > ), we use an open dot to indicate that the endpoint of the ray is not part of the solution. For the other types of inequalities ( ≤ and ≥ ), we use a closed dot to indicate that the endpoint is part of the solution.

Step-by-step explanation:


Related Questions

want to do G and i only​

Answers

G = 32 cm²I = 30 cm²

Step-by-step explanation:

#G

A = ℓ × w

A = 8 × 4

A = 32 cm²

#I

A = ½ × 5 × 12

A = 5 × 6

A = 30 cm²

#G

L=8cmB=4cm

[tex]\\ \sf\longmapsto Area=LB[/tex]

[tex]\\ \sf\longmapsto Area=8(4)=32cm^2[/tex]

#I

B=12cmH=5cm

[tex]\\ \sf\longmapsto Area=\dfrac{1}{2}BH[/tex]

[tex]\\ \sf\longmapsto Area=\dfrac{1}{2}(12)(5)=30cm^2[/tex]

PLZ HELP! Will give brainilest to first correct answer!




Use a factor tree to find the prime factorization of 125. Write the prime factorization using exponents.
A. 3 to the power of 5 • 1
B. 5 to the power of 3
C. 5 • 25
D. 5 to the power of 5

Answers

Answer:

B. 5 to the power of 3............

hiii can someone help me with this i’m not really good at math and i need some help with this question please

Answers

Answer:

√128 units

Step-by-step explanation:

As we move to the right from (-4, -2) to (4, 6), x increases by 8 and y increases by 8 also.  Using the distance formula, we get:

d = √(8² + 8²) = √(64 + 64) = √128 units (last answer)

5. Victoria sells different sizes of homemade candles.
• Small candles cost the least and sell for $5 each.
• Extra-large candles cost the most and sell for $20 each,
Yesterday Victoria sold a total of 4 candles, including 1 small candle and 1 extra-large candle.
Which could be the total amount Victoria earned from selling candles yesterday?
A. $20
B. $25
C. $50
D. $85

Answers

Answer:

Hello! Your answer is C. $50!

Step-by-step explanation:

The problem says Victoria sold a TOTAL of 4 candles. 2 of them are given. If you add up a small and XL candle, its 25. So, you have to try to add 25 and a combinations of small and/or XL candles. When you add one small and one XL, you get 50. Since $50 is the only amount listed that is correct, it would be your answer. Hope this helps!

Answer:

i think 25 because

Step-by-step explanation: 4 x 5= 20 and 4 x 20= 80 so 80+ 20 = 100 then 100  divided by 4= 25

Help please ? Thank you !!

Answers

Answer:

(6x+3)=120

6x=120-3

6x=117

x=117/6

x=19.5

(7x-19)=120

7x=120+19

7x=139

x=139/7

x=19.85

What is the graphical evidence of sequence

Answers

Answer:

11:02

If a sequence s which is the sequence D 1 up to DN is a degree sequence of some graph then the sequence s is called the graphical

PLZ HELP DUE IN 10 MIN!! A diagram of a lot of land is shown. The scale on the diagram is 1 cm represents 2.5 yards. What is the perimeter of the actual lot of land?

Answers

please insert the image

..................................

Answers

MADE BY FACEESLASHA

DIGITEL ANGELS, ANGELS, A-A-ANGELS

PLEASE HELP WITH THESE QUESTIONS
1) What are the three forms of quadratic functions?

2) For each of the three forms, when would it be most convenient to have the function in that form?

3) Create a quadratic function in one of the forms and show how to convert it to another one of the three forms.

Answers

Answer:

I only know number 1

vertex form, standard form and factored form

Find the angles a,b,c,d

Answers

Answer:

Step-by-step explanation:

a=101 c=83 b=79 d=97

Please answer Omgggg

Answers

Answer:

a ) 81

b ) 16807

c ) 1001000000

d ) 78125

Step-by-step explanation:

a )

3^2 x 3^2

= 9 x 9

= 81

b )

7 x 7^4

= 7 x 7 x 7 x 7 x 7

= 16807

c )

10^9 + 10^7

= 1000000000 + 10000000

= 1001000000

d )

5^8 ÷ 5

= 5 x 5 x 5 x 5 x 5 x 5 x 5 x 5 / 5

= 5 x 5 x 5 x 5 x 5 x 5 x 5

= 78125

It should be 78125. I really hope this helps.

What is the image point of (4, -12) after the transformation rx-axis o D 1/4?

Answers

Answer:

(4, 12) is the answer after being reflected over the x-axis

Step-by-step explanation:

=> The x remains the same, the y flips over the x - to be negative

     (4, -12) ==>> (4, 12)

--

=> The new point after being reflected over the x-axis is (4, 12) in which is the answer

      (4, 12) ==>> Final Solution (Correct)

A firm’s production function is
Q = 50L − 0.01L2
where L denotes the size of the workforce. Find the value of MPL in the case when
(a) L = 1 (b) L = 10 (c) L = 100 (d) L = 1000

Answers

The value of MPL for the various cases are;

A) MPL = 49.98

B) MPL = 49.8

C) MPL = 48

D) MPL = 30

We are given;

Q = 50L - 0.01L²

Now MPL means marginal product of labor and it is defined as the derivative of Q with respect to L. Thus;

MPL = dQ/dL = 50 - 2(0.01L)

A) When L = 1;

MPL = 50 - 2(0.01 × 1)

MPL = 49.98

B) When L = 10;

MPL = 50 - 2(0.01 × 10)

MPL = 49.8

C) When L = 100

MPL = 50 - 2(0.01 × 100)

MPL = 48

D) When L = 1000

MPL = 50 - 2(0.01 × 1000)

MPL = 30

Read more at; https://brainly.com/question/14281704

is y = -2x + 7 a relation or function

Answers

Answer:

It is a relation and a function.

Step-by-step explanation:

The domain of y = -2x + 7 is the set of all real numbers (assumed to be).

For each x real, the equation y = -2x + 7, means that exactly one real number is associated with x.  Thus, it is a function.  We note that a function is a special type of relation.  

let f(x)=2x^2+7x-5 and g(x)=-8^2-3x+5 what is g(x)+f(x)

Answers

Answer:

2x^2 + 4x - 64

Step-by-step explanation:

it is telling us to add the functions together so we use this equation:

2x^2 + 7x - 5 + (-8^2) - 3x + 5

after combining like terms we get

2x^2 + 4x -8^2

and then lastly we square the -8 and get

2x^2 + 4x - 64

Find the two points of a line

Answers

Answer:

we need more context but 2 points on a graph can be (0,0) and (5.5,5.5)

A salesperson works 40 hours per week at a job where she has two options for being paid. Option A is an hourly wage of ​$22. Option B is a commission rate of 8​% on weekly sales. How much does she need to sell this week to earn the same amount with the two​ options?
PLEASE HELP

Answers

Answer:

We have been given that a salesperson works 40 hours per week at a job where he has two options for being paid. Option A is an hourly wage of $25. Option B is a commission rate of 8% on weekly sales.

First of all we will find amount earned by salesperson with option A.

The salespersons earns $1000 through option A.

Let x be the amount of weekly sales.  

8% of x should be equal to 1000 for salesman to earn the same amount with the two options.

     

Therefore, the salesman needs to make a weekly sales of $12,500 to earn the same amount with two options.We have been given that a salesperson works 40 hours per week at a job where he has two options for being paid. Option A is an hourly wage of $25. Option B is a commission rate of 8% on weekly sales.

First of all we will find amount earned by salesperson with option A.

The salespersons earns $1000 through option A.

Let x be the amount of weekly sales.  

8% of x should be equal to 1000 for salesman to earn the same amount with the two options.

     

Therefore, the salesman needs to make a weekly sales of $12,500 to earn the same amount with two options.v

Step-by-step explanation:

The measures of the angles of a triangle are shown in the figure below. Solve for x.
(9x-3)
(6x+3)
Answer: 2 =
Submit Answer

Answers

Set them equal. 9x-3 = 6x+3 -6x = -3 x=2

Guys please solve 3-3(2x+1)+8x≥ 3 − 3

Answers

Step-by-step explanation:

3-3(2x+1)+8x>=3-3

3-3*2x-3*1+8x>=0

3-3-6x+8x>=0

2x>=0

x>=0

The results of a national survey showed that on average, adults sleep 7.3 hours per night. Suppose that the standard deviation is 1.2 hours and that the number of hours of sleep follows a bell-shaped distribution. If needed, round your answers to two decimal digits. If your answer is negative use “minus sign”.

(a) Use the empirical rule to calculate the percentage of individuals who sleep between 4.9 and 9.7 hours per day.
Enter your answer as a percentage.
%
(b) What is the z-value for an adult who sleeps 8 hours per night?

(c) What is the z-value for an adult who sleeps 6 hours per night?

Answers

Using the Empirical Rule and z-scores, we have that:

a) 95% of individuals who sleep between 4.9 and 9.7 hours per day.

b) Z = 0.58.

c) Z = -1.08.

What does the Empirical Rule state?

It states that, for a normally distributed random variable:

Approximately 68% of the measures are within 1 standard deviation of the mean.Approximately 95% of the measures are within 2 standard deviations of  the mean.Approximately 99.7% of the measures are within 3 standard deviations of the mean.

In item 2, both 4.9 and 9.7 are 2.4 hours from the mean, that is, 2 standard deviations, hence 95% of individuals who sleep between 4.9 and 9.7 hours per day.

What is the z-score formula?

The z-score of a measure X of a normally distributed variable with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex] is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

For this problem, the mean and the standard deviation are given as follows:

[tex]\mu = 7.3, \sigma = 1.2[/tex]

The z-score for an adult who sleeps 8 hours per night is:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

Z = (8 - 7.3)/1.2

Z = 0.58.

The z-score for an adult who sleeps 6 hours per night is:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

Z = (6 - 7.3)/1.2

Z = -1.08.

More can be learned about the Empirical Rule and z-scores at https://brainly.com/question/24537145

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helpp!!!!! i don’t know the answer

Answers

Answer:

option c because w3-20 substute it

Step-by-step explanation:

please mark me as brainlest

4ab over 4a 8th power b2nd power

Answers

Answer:

Step-by-step explanation:

=1 over/ a to the 7th power b

Olmec trading
Choose 1 answer:
Choose 1 answer:

(Choice A)
A
reached across much of Mesoamerica

(Choice B)
B
was confined to the cities of San Lorenzo and La Venta

(Choice C)
C
only dealt with agricultural products

Answers

Answer:

Answer A

Step-by-step explanation:

It was a large trading spot and was made to trade long distances, so therefore it wasn't confined to the cities of San Lorenzo and La Venta, and had more variety than agricultural products.

Hence Answer A

I hope this helped!

Brianliest if it did? No pressure!

Have a great day :D

5x-3y=20 line paralelal

Answers

Answer:

Answer is in the attachment..............

Step-by-step explanation:

An IQ test is designed so that the mean is 100 and the standard deviation is 10 for the population of normal adults. Find the sample size necessary to estimate the mean IQ score of statistics students such that it can be said with ​99% confidence that the sample mean is within 8 IQ points of the true mean. Assume that σ=10and determine the required sample size using technology. Then determine if this is a reasonable sample size for a real world calculation. The required sample size is

Answers

Answer:

sample size = 10

it is not practical because we can't draw a conclusion for a complete population based on the sample size of 10 people

Step-by-step explanation:

mean = 100

standard deviation = sigma = 10

confidence level = 99%

The z-score for 99% confidence level = z = 2.58

mean IQ is within 8 IQ points so:

error = E = 8

sample size = n (we don't know it)

Since the distribution is normal, we can use the formula of margin of error for z-distribution to calculate the missing sample size:

[tex]E = z * \frac{sigma}{\sqrt{n} } \\\sqrt{n} = z * \frac{sigma}{E} \\\\\sqrt{n} = 2.58*\frac{10}{8} \\\\\sqrt{n} = \frac{25.8}{8} \\\\n = (\frac{25.8}{8} )^{2}\\n = 10.4\\[/tex]

next integer rounded is 10

What is the quotient?



703515

Answers

The quotient between 7035 and 15 is of 469.

What is the question?

The questions asks the quotient between two numbers, which are 7035 and 15.

How to find the quotient between two numbers?

The quotient between two numbers, a and b, is given by the division of a by b, that is:

q = a/b.

In this problem, we want to find the quotient between 7035 and 15, hence the division is:

7035/15 = 469.

The quotient between 7035 and 15 is of 469.

More can be learned about the quotient between two numbers at https://brainly.com/question/673545

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need help on homework plz :)

Answers

Answer:

i believe it is the first option

Step-by-step explanation:

James scored 61, 51, 64, and 68 on four tests. What must he score on the next test to have a 60 average in the courses? Explain.

Answers

Answer:

56

Step-by-step explanation:

61 + 51 + 64 + 68 + 56 = 300

300 / 5 = 60

(1/10x−2/3)−(4/5x−1/6)

Answers

Answer:

- 7x + 5/10

Step-by-step explanation:

I used a calculator, please let me know if im incorrect

Which table represents a linear function? ​

Answers

The last one. Because the Y increases at the same rate when you go up with X. When you go up, the y increases by 5
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