Which expression is a sum of a number and a product? O A. 2(x-9) O B. 6x- 4 O c. 4+ 2x O D.​

Answer:

1.5/9 =  1 1/2 / 9 = 3/2 /9 = 3/18 = 1/6

Step-by-step explanation:

The fraction that is equivalent to 1.5 / 9 is expressed as:

3/18.

Equivalent fractions are different fractions that represent the same value or proportion, although they may have different numerators and denominators.

To find an equivalent fraction for 1.5/9, divide both the numerator and denominator by their greatest common divisor (GCD), which in this case is 0.5.

Dividing 1.5 by 0.5 and 9 by 0.5, we will have the following:

(1.5 ÷ 0.5) / (9 ÷ 0.5) = 3/18

Hence, the equivalent fraction for 1.5/9 is 3/18.

Learn more about Equivalent Fractions on:

https://brainly.com/question/17220365

#SPJ6

Answer:

[tex]d \approx 19.42[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Algebra II

Step-by-step explanation:

Step 1: Define

Point (3, 8)

Point (7, -11)

Step 2: Find distance d

Answer:

D

Step-by-step explanation:

I took the exam

Based on the times that Ray filled the water jug and the times it was drained, the best graph to show the water level is Graph 4.

In the 4th graph, the water level increases at the beginning to a stable level. It doesn't change till halfway through the graph which is most likely when the team took a water break.

The water level then rises to a similar level which shows Ray refilling the water jug. At the end of the practice, Ray empties the jug which is why the water level then goes the zero.

Find out more on graphical representation at https://brainly.com/question/12076235.

#SPJ9

Option ' B ' [ sin 35° = cos 55° ] is true!

- Used a calculator ! The value is shown in the calculator in the attached picture!

-------- Happy LearninG <3 ------

Answer:130

Step-by-step explanation:

Answer:

31.1666666667

Step-by-step explanation:

Caculator

Answer:

15x + 9

General Formulas and Concepts:

Algebra I

Step-by-step explanation:

Step 1: Define

12x + 14 + 3x - 5

Step 2: Simplify

Answer: -22 degrees

Step-by-step explanation:

Answer:

193.27

Step-by-step explanation:

Answer:

$193.27 left on his gift card

Given:

The quadratic equation is

[tex]0=-3x^2-4x+5[/tex]

To find:

The simplest radical form of the solution.

Solution:

Quadratic formula:

If a quadratic equation is [tex]ax^2+bx+c=0[/tex], then

[tex]x=\dfrac{-b\pm \sqrt{b^2-4ac}}{2a}[/tex]

We have,

[tex]0=-3x^2-4x+5[/tex]

Here, a=-3, b=-4 and c=5. Putting these values in the quadratic formula, we get

[tex]x=\dfrac{-(-4)\pm \sqrt{(-4)^2-4(-3)(5)}}{2(-3)}[/tex]

[tex]x=\dfrac{4\pm \sqrt{16+60}}{-6}[/tex]

[tex]x=\dfrac{4\pm \sqrt{76}}{-6}[/tex]

[tex]x=\dfrac{4\pm 2\sqrt{19}}{-6}[/tex]

Taking 2 common, we get

[tex]x=\dfrac{2(2\pm \sqrt{19})}{-6}[/tex]

[tex]x=\dfrac{(2\pm \sqrt{19})}{-3}[/tex]

[tex]x=-\dfrac{(2\pm \sqrt{19})}{3}[/tex]

Therefore, the correct option is A.

Answer:

There you are, hope this helps.

The required graph of the equation has been shown,

To draw the graph of the given equaiton,
1. y = 2x - 3     2. y = -2x + 3        3. y = 2x + 3          4. y = -2x - 3

The graph is a demonstration of curves that gives the relationship between the x and y-axis.

Here,
1. y = 2x - 3

The slope is m = 2 and has a negative y-intercept of -3

2. y = -2x + 3
The slope is m = -2 and has a y-intercept of 3

3. y = 2x + 3
The slope is m = 2 and has a y-intercept of 3        

4. y = -2x - 3

The slope is m = -2 and has a y-intercept of -3  

Thus, the required graph of the equation has been shown,

Learn more about graphs here:

brainly.com/question/16608196

#SPJ2

The total number of different pizzas that Sarah can order is 42. The correct option is C.

Multiplication is the process of multiplying, therefore, adding a number to itself for the number of times stated. For example, 3 × 4 means 3 is added to itself 4 times, and vice versa for the other number.

Given the following choices for selecting a pizza. Therefore, we can write,

Number of choices for size = 2

Number of choices for toppings = 7

Number of choices for crust = 3

Total number of choices available with Sarah = Number of choices for size × Number of choices for toppings × Number of choices for crust

Total number of choices available with Sarah = 2 × 7 × 3 = 42

Hence, the total number of different pizzas that Sarah can order is 42.

Learn more about Multiplication here:

https://brainly.com/question/14059007

#SPJ1

Answer: I think the answer is D

Step-by-step explanation:

The quotient when 480 is divided by -60 is 8.

Division is one of the operation in mathematics where number is divided  into equal parts as that of a definite number.

The numbers given are 480 and -60.

Both are in opposite signs, that is one negative and other positive.

So the quotient will be negative.

Now divide 480 by 60.

Since both of the numbers contain 0 at the end, cancel it.

Then it becomes 48 divided by 6.

48 / 6 = 8

Hence the quotient is 8.

To learn more about Division, click here :

https://brainly.com/question/21416852

#SPJ2

Answer:

B. Time(length)

Step-by-step explanation:

The function that would be represented as a good name for a function for the length of the race and the return the time required to finished it

here the independent variable or the INPUT is the length while the output would be the time that required to finish it

Hence, the correct option is B,

Therefore all the other options would be incorrect

Answer:

HERE FOR POINTS SORRY

Step-by-step explanation:

Answer:The square root of 436149 is 660.41577812769

Answer:

Makayla got the highest

Step-by-step explanation:

if you do 100÷15=answer×12=80%

if you do 100÷35=answer×27=77%

Answer:

pp

Step-by-step explanation:

pp

(tan²(θ) cos²(θ) - 1) / (1 + cos(2θ))

Recall that

tan(θ) = sin(θ) / cos(θ)

so cos²(θ) cancels with the cos²(θ) in the tan²(θ) term:

(sin²(θ) - 1) / (1 + cos(2θ))

Recall the double angle identity for cosine,

cos(2θ) = 2 cos²(θ) - 1

so the 1 in the denominator also vanishes:

(sin²(θ) - 1) / (2 cos²(θ))

Recall the Pythagorean identity,

cos²(θ) + sin²(θ) = 1

which means

sin²(θ) - 1 = -cos²(θ):

-cos²(θ) / (2 cos²(θ))

Cancel the cos²(θ) terms to end up with

(tan²(θ) cos²(θ) - 1) / (1 + cos(2θ)) = -1/2

Answer:

The population mean is 19.2 to 20.8.

Step-by-step explanation:

The formula of Confidence interval is

CI = mean ± z*[tex]\frac{s}{\sqrt{n} }[/tex]

where

n = sample size

s  = Population standard deviation.

mean = Sample mean

z(α/2) = Two tailed z-value for significance level of .

Given : Confidence level = 95.44% = 0.9544

Significance level =  α = 1-0.9544 = 0.0456

Now we Use standard z-value table  

z-value for Significance level of 0.0456 :

z(α/2) = z(0.0228) = 1.99 = 2(approximately)

And we are given

n=144

s = 4.8

mean = 20

so the required Confidence interval is

CI = 20± 2*[tex]\frac{4.8}{\sqrt{144} }[/tex]

     = 20 ± 2*[tex]\frac{4.8}{12}[/tex]

      = 20 ± (0.8)

      = (20-0.8, 20+0.8 )

       = (19.2 , 20.8)

Therefore the 95.44% CI value  for the population mean of 20 is 19.2 to 20.8.

Answer:

1267-7

Step-by-step explanation:

1257-10-7

1247-7

1240

Answer:

D

Step-by-step explanation:

Condense the logarithm on the right side:

[tex]3\log_b(p)-\left(2\log_b(t)+\dfrac12\log_b(r)\right)[/tex]

[tex]n\log_b(m)=\log_b(m^n) \implies \log_b(p^3)-\left(\log_b(t^2)+\log_b\left(r^{\frac12}\right)\right)[/tex]

[tex]\log_b(m)+\log(n)=\log_b(mn) \implies \log_b(p^3)-\log_b\left(t^2r^{\frac12}\right)[/tex]

[tex]\log_b(m)-\log(n)=\log_b\left(\dfrac mn\right) \implies \log_b\left(\dfrac{p^3}{t^2r^{\frac12}}\right)[/tex]

So,

[tex]x=\dfrac{p^3}{t^2r^{\frac12}}[/tex]

and [tex]r^{\frac12}=\sqrt{r}[/tex], which makes (4) the correct choice.

Answer:

math is hard :(

Step-by-step explanation:

a.) The equation for profit is  - 0.5x² + 40x - 300

b.) The two values of x for profit = $300 are 20 and 60

c.) Profit of $15000 is not possible.

What is a profit?

Profit is defined as the total extent of benefit gained from selling some things. Mathematically, it is illustrated as the difference between the selling price and the cost price of an object.

Calculating the expression for profit

Given: the cost of producing x items = 55x + 300 and the revenue for selling x items is 95x - 0.5x²

a.) Profit = selling price/revenue - cost price

According to the question, we get,

Profit = 95x - 0.5x² - 55x - 300

= 40x - 0.5x² - 300

= - 0.5x² + 40x - 300                  —–— 1

b.) Finding two values of x, when profit is $300

Using equation 1, we get,

300 = - 0.5x² + 40x - 300

0.5x² - 40x + 600 = 0

0.5x² - 10x - 30x + 600 = 0

0.5x(x - 20) - 30(x - 20) = 0

(x - 20)(0.5x - 30) = 0

i.e. x = 20 or x = 60

Two values of x for profit = $300

c.) Let us consider the profit to be $15000

15000 = - 0.5x² + 40x - 300

0.5x² - 40x + 15300 = 0

Using the quadratic formula, x = (- b ± √b² - 4ac) / 2a, we get,

x = (40 ± √40² - 4(0.5)(15300)) / 2(0.5)

The roots of this equation will be imaginary. Thus, it can be said that profit can not be $15000.

Hence, a.) The equation for profit is  - 0.5x² + 40x - 300

b.) The two values of x for profit = $300 are 20 and 60

c.) Profit of $15000 is not possible.

To learn more about the profit, visit the link given below:

https://brainly.com/question/1078746

#SPJ9

Answer: See attached

Step-by-step explanation:

5/9 will give a repeating decimal 0.55555. You would write it as 0.5 with a "bar" line over the 5. See attached file of how it looks

Answer:

6/10

Step-by-step explanation:

2 groups of 3/10 =

2 × 3/10 =

6/10