Which graphs show functions with direct variation? select three options.

Answers

Answer 1

Answer:

the daily graphs

Step-by-step explanation:

the news paper

Answer 2

Answer:

B C E

Step-by-step explanation:


Related Questions

The number of music CDs sold in 1993 by one company was approximately 2.3×10^6.The number of music CDs sold by the same company in 2001 was approximately 7.9×10^7. What is the difference in CDs sold between 1993 and 2001?

Answers

Answer:

84%

Step-by-step explanation:

I'm not sure how I got that answer but I'm just smart like that. I'm sorry I couldn't give a better explanation. I'm in a bit of a rush but I hope this answer is helpful to you. Percentage was the only way I could think of. Sorry again.

The difference between  CDs sold between 1993 and 2001 will be 76.7 × 10⁵.

What is subtraction?

To subtract in mathematics is to take something away from a group or a number of objects.

In another meaning subtraction is a mathematical operation such that two values are going to subtract and give a resultant value.

The group's total number of items decreases or becomes lower when we subtract from it.

Given that sell of CDs in 1993 is 2.3 × 10⁶.

Sell of CDs in 2001 is 7.9 × 10⁷.

The difference between sell is = 7.9 × 10⁷ - 2.3 × 10⁶

76.7 × 10⁵ hence it will the correct option.

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A jet travels 490 miles in 5 hours. At this rate, how far could the jet fly in 10 hours? What is the rate of speed of the jet?

Answers

980 miles

Step-by-step explanation:

5 hours =490miles

1 hour =490/5=98miles

10hours = 98×10=980miles

Find the value of the expression 8x^3 if x=0

Answers

The answer would be 0 because it’s 8 times 0 cubed. And 0 times any number is 0 so 0 to the 3rd power is 0

Which equation represents the graph?
y=3x²-4
y=-3x²-4
y=-3x²+4
y=3x²+4

Answers

Answer:

y = -3x^2 + 4

Look below for more information

Step-by-step explanation:

y = 3x^2 - 4

Everything is wrong about this answer. The slope is actually a negative and the y-intercept is suppose to be a positive

y = -3x^2 - 4

Only the y-intercept is wrong here because the graph is going 4 units up instead of 4 units down

y = -3x^2 + 4

This is the correct answer! The slole is negative and the y-intercept is a positive

y = 3x^2 + 4

The slope is wrong but the y-intercept is correct!

Therefore, our answer is the third option: y = -3x^2 + 4

Write an equation in slope intercept form for the line with slope -2 and y intercept-5

Answers

Answer:

Y=-2x-5

Step-by-step explanation:

Y=Mx + b where m is the slope and b is the y intercept

y=-2x-5

brainliest is appreciated

− 10x− 6y = 12
4x+ 7y =− 14

Answers

x=0, y=-2

tell me if u need the explanation

Evaluate:

3 - - 10-9 divided by (-1)

Answers

[tex]\huge\textsf{Hey there!}[/tex]

[tex]\mathsf{3 - -10 - \dfrac{9}{-1}}[/tex]

[tex]\mathsf{= 3 - (-10) - \dfrac{9}{-1}}[/tex]

[tex]\mathsf{= 3 + 10 - \dfrac{9}{-1}}[/tex]

[tex]\mathsf{3 + 10}\\\\\mathsf{= \bf 13}[/tex]

[tex]\mathsf{= \bold{13} - \dfrac{9}{-1}}[/tex]

[tex]\mathsf{\dfrac{9}{-1}}\\\\\mathsf{= 9\div-1}\\\\\mathsf{= \bf -9}[/tex]

[tex]\mathsf{= 13 - (\bf -9)}[/tex]

[tex]\mathsf{= 13 + 9}[/tex]

[tex]\mathsf{= \bf 22}[/tex]

[tex]\boxed{\boxed{\huge\textsf{Answer: \bf 22}}}\huge\checkmark[/tex]

[tex]\large\textsf{Good luck on your assignment and enjoy your day!}[/tex]

~[tex]\frak{Amphitrite1040:)}[/tex]

A chemist has a container of 12% peroxide solution and a container of 20% peroxide solution. She needs to mix the two solutions to create 100 mL of a 14% solution. If x represents the amount of 12% peroxide solution and y represents the amount of 20% peroxide solution she needs, which matrix equation can determine the amount of each solution she needs to make the 14% solution?

Answers

Answer:

[tex]0.12x+0.2y=14,\:x+y=100\quad :\quad x=75,\:y=25[/tex]

Step-by-step explanation:

.12x + .2y = 14

x + y = 100

Answer:

Its B

Step-by-step explanation:

giving crown


1) At the store, 2 pounds of beans cost $3.15, 5 pounds of rice cost $7.50, 4 pounds of cabbages cost $4.54, and 7 pounds of alfalfa cost $8.95. Which item has the lowest unit price?
(A) Beans(B) Rice(C) Cabbages(D) Alfalfa

2) Peanuts are sold at the general store in the following quantities: 2¢ for one peanut; 50 peanuts for 99¢, 100 peanuts for $1.99, and 50,000 peanuts for $1000. Which quantity has the lowest unit price?
(A) 1 peanut(B) 100 peanuts(C) 50 peanuts(D) 50,000 peanuts

3)The ratio of trees to shrubs in the garden was 7 to 13. If there were 273 shrubs in the garden, how many trees were there?
(A) 420(B) 147(C) 1911(D) 507

Answers

Answer:

3) = B

Explanation:

There are 147 trees.

What is the value of f(x) = 2 • 2 x for f(–2)?

Answers

Answer:

-8

Step-by-step explanation:

you know, all you have to do in such a case is simply taking the given -2 and put it, where there is "x" in the function expression and then calculate this. if necessary with a calculator.

2×2×x with x=-2 is

2×2×-2 = -8

Answer:

- 8

Step-by-step explanation:

f ( x ) = 2 . 2 x

f ( - 2 )

= 2 . 2 ( - 2 )

= 2 x 2 x ( - 2 )

= - 8

If 40% of a number is equal to two-third of another number, what is the ratio of the first number to the second number.?

Answers

Answer:

5:3

Step-by-step explanation:

40% = 2/5

If the numbers are x and y, then

2/5 x = 2/3 y

Divide both sides by 2/5

x  = (2/3 * 5/2)y

x = 10/6 y

x = 5/3  y

So the required ratio is 5 : 3.

Checking this result:

10% of 5 = 2

2/3 of 3 = 2 also.

Find the size of one interior angle of a regular 10-sided polygon.

Answers

Answer:

144

Step-by-step explanation:

Exterior angle = [tex]\frac{360}{number \ of \ sides}[/tex]

                       [tex]=\frac{360}{10}[/tex]

                       = 36

Interior angle and exterior angles are supplementary.

interior angle + exterior angle = 180

Interior angle + 36 = 180

Interior angle = 180 - 36

                       = 144

Here's a graph of a linear function. Write the
equation that describes that function.
Express it in slope-intercept form.
Enter the correct answer.

Answers

Answer:

Y = 1/4 x -3

Step-by-step explanation:

x1 y1  x2 y2

0 -3  -8 -5

   

ΔY -2    

ΔX -8    

   

slope=   1/4    

B= -3          

   

Y =0.25X +-3    

What is Index Law 3?
please give explanation

Answers

Answer:

hi hi hi hi hi

Step-by-step explanation:

plz follow me

The third and last law tells us that when we have to multiply a power in a bracket, by another power outside the bracket, we have to multiply the two powers together to get the answer.

a = 3d
work out the value of 'a' when , d= 5​

Answers

Answer:

15

Step-by-step explanation:

a = 3d

Let d=5

a = 3*5

a = 15

hope this helps! feel free to clarify!

Solve for x
Need help asap

Answers

Answer:

[tex]x=55[/tex]

Step-by-step explanation:

Corresponding angles of two parallel lines are always equal. The angle on "top" of [tex]2x+6[/tex] corresponds with the angle marked as [tex]x+9[/tex]. Therefore, its measure must also be [tex]x+9[/tex].

Since these two angles form one side of a line which has 180 degrees, we have the following equation:

[tex]2x+6+x+9=180[/tex]

Combine like terms:

[tex]3x+15=180[/tex]

Subtract 15 from both sides:

[tex]3x=165[/tex]

Divide both sides by 3:

[tex]x=\frac{165}{3}=\boxed{55}[/tex]

Emily says that the lengths of the sides of her prism are 6 inches 5 inches
and 3 inches. Is Emily correct? Use words and numbers to explain why or
why not.

Answers

It depends on her prism if her prism is tilted then not but if it yes

6x8x8 is it actually 384?! Please show me how!

Answers

Answer:

If it's hard to add together, I think you should get a calculator

pls answer correctly and explain

thx

Answers

Answer:

36n = 360

Step-by-step explanation:

A dozen is 12

3 dozen is 3*12 = 36

36 * n boxes = 360

36n = 360

find the missing length

Answers

Answer: x = 120

Step-by-step explanation:

Okay so you have three similar right triangles. To find x, you can set up an proportion [tex]\frac{shorter leg}{long leg} = \frac{64}{x} = \frac{x}{225}[/tex]  since similar figures are in proportion. By cross multiplying and finding the square root of x^2, you result in x equaling 120.

What are the steps i need to do (along with the answer) to 9^x = sqrt of 729?

Answers

Answer:

last option is correct 3/2

Answer:

x = 3/2

Step-by-step explanation:

9^x = 729 ^ 1/2

We need to get the bases the same

729 = 9^3

9^x = 9^3 ^ 1/2

We know that a^b^c = a^(b*c)

9^x = 9^3/2

Since the bases are the same, the exponents are the same

x = 3/2

Please hurry I will mark you brainliest

What is the slope of this?

Answers

Answer:

Step-by-step explanation:

you can use the rise over run technique, where you count how many units you go down or up, left or right to get to the next point. or use the slope formula :

(y2-y1)/(x2-x1)

the pairs given :

(1,6) and (3,2)

(2-6)/(3-1) = -4/2 = -2

-2 is the slope. the line is going downwards so there is a negative slope

Guided Practice


Which model is most appropriate for the set of points?

(–3, 6), (–1, 0), (0, –1), (1, –1.5)


A.
exponential


B.
quadratic


C.
linear

Answers

Answer:

B.    quadratic

Step-by-step explanation:

Answer: The model that is most appropriate for the set is: Quadratic

Answer:

exponential

Step-by-step explanation:

Just took the test

The length L of the base of a rectangle is 5 less than twice its height H. Write the algebraic expression to model the area of the rectangle.

Answers

Answer: 2H^2 - 5H

Explanation:
1. L = 2H - 5
2. Area of a rectangle is length (L) times height (H), so in this case, it would be (H) x (2H - 5)
3. Multiply H by everything in the parenthesis
4. You should get 2H^2 - 5H

The length L of the base of a rectangle is 5 less than twice its height H. Then the algebraic expression be, area of rectangle = 2H² - 5H.

What is the algebraic expression to model the area of the rectangle?

Let, the given information be "The length L of the base of a rectangle is 5 less than twice its height H".

L be the length of the rectangle

H be the height of the rectangle

By converting the given information into an algebraic expression, we get

Length = 2H - 5

The area of a rectangle is given by the formula;

Area of rectangle = L [tex]*[/tex] H

Where L is the Length.

H is the Height.

Substituting the values into the formula, we have;

Area of rectangle = (2H - 5) [tex]*[/tex] H

Area of rectangle = 2H² - 5H

Therefore, the area of rectangle = 2H² - 5H.

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work out the length of ab​

Answers

Answer:

AB = 2√137

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right  

Equality Properties

Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of Equality

Trigonometry

[Right Triangles Only] Pythagorean Theorem: a² + b² = c²

a is a leg b is another leg c is the hypotenuse

Step-by-step explanation:

Step 1: Define

Identify variables

a = 22 cm

b = 8 cm

Step 2: Solve for c

Substitute in variables [Pythagorean Theorem]:                                            (22 cm)² + (8 cm)² = c²Evaluate exponents:                                                                                        484 cm² + 64 cm² = c²Add:                                                                                                                   548 cm² = c²[Equality Property] Square root both sides:                                                   2√137 cm = cRewrite:                                                                                                             AB = 2√137

Answer:

AB= 2√137 cm

Step-by-step explanation:

because we have a right triangle we apply the Pythagorean theorem

hypothenuse² = side² + side²

AB² = BC² + AC², substitute the given sides BC=8 and AC=22

AB² = 8² + 22² , square the numbers and apply the square root to both side

AB = √(64 + 484), add the numbers

AB = √548, simplify the square root

AB= 2√137 cm

The variables x and y vary inversely, and y=-11 when x = 16. Write an equation that relates x and y. Then
find y when x = -9.

Answers

Answer:

y=-176/x

y=176/9

Step-by-step explanation:

[tex]y = \frac{k}{x} \\ - 11 = \frac{k}{16} \\ k = - 176 \\ y = \frac{ - 176}{x} \\ y = \frac{ -176}{ -9} = 19 \frac{5}{9} [/tex]

Find the equivalent percent for ¾

Answers

3/4 is equivalent to 75%.

To find the percentage of a fraction, you simply just divide the numerator by the denominator. 3/4=0.75, which is 75%.

Answer:

75%....3/4 expressed as a percentage is just multiplying 3/4 and 100

1. Una empresa realizó una encuesta a 250 personas para saber qué programa de televisión prefieren ver en domingo. Se les dieron 3 opciones: deportes, películas o musicales. El resultado de la encuesta fue: 130 personas prefieren deportes; 80 prefieren ver películas; 40, musicales; 25 prefieren deportes y películas; 20, películas y musicales; 10, deportes y musicales; y sólo a 6 personas les gustan los tres tipos de programas. a) ¿Cuántas prefieren ver sólo deportes? b) ¿Cuántas prefieren ver sólo un programa de televisión? c) ¿Cuántas prefieren ver películas o musicales?

Answers

Answer:

A) 89 personas prefieren ver sólo deportes.

B) 122 personas prefieren ver sólo un programa de televisión

C) 33 personas prefieren ver películas o musicales.

Step-by-step explanation:

Dado que una empresa realizó una encuesta a 250 personas para saber qué programa de televisión prefieren ver en domingo, y se les dieron 3 opciones: deportes, películas o musicales, donde el resultado de la encuesta fue: 130 personas prefieren deportes; 80 prefieren ver películas; 40, musicales; 25 prefieren deportes y películas; 20, películas y musicales; 10, deportes y musicales; y sólo a 6 personas les gustan los tres tipos de programas; para determinar A) cuántas prefieren ver sólo deportes, B) cuántas prefieren ver sólo un programa de televisión; y C) cuántas prefieren ver películas o musicales, se deben realizar los siguientes cálculos:

A)

130 - 25 - 10 - 6 = 89

B)

80 - 25 - 20 - 6 = 29

40 - 20 - 10 - 6 = 4

89 + 29 + 4 = 122

C)

29 + 4 = 33

Instructions: Fill in the last step of solving the quadratic equation by factoring. 3x2−2x−5=0 Step 1: Rewrite middle term. 3x2−5x+3x−5=0 Step 2: Group terms together and find GCF. (3x2−5x)+(3x−5)=0 x(3x−5)+1(3x−5)=0 (3x−5)(x+1)=0 Step 3: Apply the Zero Product Property. 3x−5=0 or x+1=0 Step 4: Solve. x= or x=

Answers

Answer:

x = (5/3)

x = -1

Step-by-step explanation:

[tex]3x^2 -2x - 5 =0\\\\(3x^2+3x) + (-5x - 5) = 0\\\\(3x-5)(x+1)=0\\\\\left \{ {{3x-5=0} \atop {x+1=0}} \right.\\\\===========\\\\3x - 5 = 0\\\\3x - 5 + 5 = 0 + 5\\\\3x = 5\\\\\frac{3x=5}{3}\\\\x = \frac{5}{3}\\\\===========\\\\x + 1 = 0\\\\x + 1 - 1 = 0 - 1\\\\x = -1 \\\\===========\\\\\boxed{\text{Therefore:}}\\\\\boxed{ x = \frac{5}{3} \text { or } x = -1}[/tex]

You would just need to solve the two equations from step three for 'x'.

Hope this helps you.

Please read below. Thank you.

Answers

2+3=5cm

Step-by-step explanation:

2 and 3 would have to be added together to get the radius of the circle, resulting in the answer being 5. 2+3=5cm that's your answer

The equation of circle with center (h,k) and radius r units is

(x -  h)^2 + (y - k)^2 = r^2

The equation of the circle with center (2,3) and radius 5 cm is

= (x - 2)^2  + (y - 3)^2 = 5^2

= x^2  -  4x + 4 + y^2 - 6y + 9 = 25

= x^2 + y^2 - 4x - 6y - 12 =0

hope it helps and is right

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