Mathematics High School

Which number is a rational number?

Answers

Answer 1

Answer:sq rt of 49

Step-by-step explanation:

Related Questions

Anyone can find this?

Answers

Answer:

a=34 °

b=76°

c=70°

d=70°

Step-by-step explanation:

The angles 76° , 34°, and c make up a triangle. A triangle has a sum of 180°.

180° = 76° + 34° +c

c=70°

The parallel lines create 2 congruent triangles so we can use the same angles from the first triangle for the second one.

A quadratic function is increasing to the left of x = 2 and decreasing to the right of x =2. Will the vertex be the highest or lowest point on the
graph of the parabola? Explain.

Answers

9514 1404 393

Answer:

highest point

Step-by-step explanation:

If the slope goes from positive to negative as x increases, the slope of the slope is negative. That means the curve opens downward. A parabola that opens downward has a vertex that is the highest point on the graph.

The college student who is looking for a data plan for her cell phone found a third option,
which also offers a 2 gigabyte monthly allowance for data.
The monthly cost of this option can be represented by function C defined by:
C(x) = 30x + 5, where x is the gigabytes of data used over the monthly allowance.
1. Find C(0.7) and explain what it means in this situation,

Answers

Answer:

C(0.7) = 26

Step-by-step explanation:

Given:

C(x) = 30x + 5

where,

x = gigabytes of data used over the monthly allowance.

1. Find C(0.7) and explain what it means in this situation

C(0.7) means he used 0.7 gigabytes of data over the monthly allowance

Substitute x = 0.7 into the equation to find the monthly cost of the option

C(x) = 30x + 5

C(0.7) = 30(0.7) + 5

= 21 + 5

= 26

C(0.7) = 26

When x = 0.7, his total cost will be 26

If the point (0, 20) is the y-intercept of the parabola with the vertex is (8, -12), What is the equation for this parabola.

Answers

Answer:

f(x) = ¹/₂(x - 8)² - 12

Step-by-step explanation:

f(x) = a(x - h)² + k - vertex form of the equation of the parabola with vertex (h, k)

so the equation of parabola with the vertex (8, -12) is

f(x) = a(x - 8)² - 12

The point (0, 20) is the y-intercept means if x=0 then f(x)=20

20 = a(0 - 8)² - 12

20 +12 = 64a - 12 +12

32 = 64a

a = ³²/₆₄ = ¹/₂

Therefore the equation (in vertex form) of parabla is:

f(x) = ¹/₂(x - 8)² - 12

Which inequality contains (0,0)

Answers

Answer:

Step-by-step explanation:

I believe C is the answer.

Explanation: If it helps, plug both the x and y values in each inequality. For the first, 0 is greater than -5, so A is not the answer. For the second, 0 is less than 3, so B is not the answer. For the last, there is no equal sign, so D is not the answer. (In order to make the inequality true, it has to be a greater than or equal to sign.) Now, for the third, 0 IS greater than -4, making that inequality true.

What is the final sales price of a telescope that originally cost $400 but was marked up 32?

Answers

Answer:

$528

Step-by-step explanation:

I'm assuming you mean up 32%?

Last Sunday 1,675 people visited the amusement park. 56% of the visitors were adults, 16% were teenagers, and 28% were children ages 12 and under. Find the number of adults, teenagers, and children that visited the park. *

Answers

Answer:

Step-by-step explanation:

56Step-by-step explanation 3x12=36 36+20=56

If we dilate a triangle with a scale factor of 3 how can we calculate the side lengths of the new triangles

Answers

Answer:

Option 2

Step-by-step explanation:

Find the new price for the markdown given. Round to the nearest cent if necessary.

$14.99 marked down 20%

Answers

20% of 14.99 = 2.998 so you subtract 14.99- 2.998 which equals 11.992 which rounds to just 11.99

Answer:

$11.99

Answer:

3x+2

Step-by-step explanation:

x+6/x+4+x-3/3

3x+6/4-3/3

3x+6/1/3

3x+6/3

3x+2

what is the multiple of 9 but is also a factor of 9

Answers

Answer:

the answer i believe is 3

Trick question it's 9
Factors is 1x9 and 3x3
Multiple is 1x9 is 9
2x9 is 18 and then they keep getting bigger from there

why did trump get any votes. he is a terrible person

Answers

Answer:

terrible people vote terrible representatives

Step-by-step explanation:

HELP PLEASE. Will mark brainliest

Answer choices

1.) 1/12
2.) 1/6
3.) 1/3

Answers

Answer:

1/12

Step-by-step explanation:

what Is thee error and the solution

Answers

Answer:

X=5

Step-by-step explanation:

Multiply by 3 first

solve 8p = 40 using mental math

A 32 B6 C 5 D 4

Answers

Answer:

Step-by-step explanation:

Answer:

c. 5

Step-by-step explanation:

8 times 5 is = to 40

1. The ratio of boys to girls in the sixth grade is 2 : 3.
a. If there are 24 boys, how many girls are there?
b. If there are 80 students, how many are girls?
c. If there are 75 students, how many more girls are there than
boys?

Answers

Answer:

a. 36 girls

b. 48 girls

c. 15 more girls than boys

Step-by-step explanation:

a. if the ratio for the question is 2:3 with a refernce ratio of 24:X, with cross multiplication we find out the x=36

b. now we must separate 80 into the 2:3 ratio making 32:48 with 48 girls

c. the same thing will be done with 75, making its 2:3 ratio 30:45, to find the difference of the two numbers you must subtract, this shows that the difference is 15 more girls.

answer please below!!!

Answers

Answer:

False because of the way your trionomial is setup

given 2 variables and you only have one

Step-by-step explanation:

Question 1:
Solve for k :

Answers

answer; -36

step by step explanation: divide 108 and -3 and because there is one negative it’d be -36

hope this helps

Answer:

Step-by-step explanation:

Equation:

-3k = 108

We need to separate -3 from k. So we must do the inverse operation.

Divide both sides by -3

k = -36

Hope this helps :)

Please consider Brainliest :)

3x=9+9x what does x equal?

Answers

Answer:

Exact Form:

X= - 3/2

Decimal Form:

X= -1.5

Mixed Number Form:

X= - 1 1/2

Step-by-step explanation:

3x = 9 + 9x
-9x -9x
__________
-6x = 9
/ -6x /-6

X= -1.5

f(x) = 5x^3 + 2x^2 – 7x + 4
g(x) = 3x – 7
Find (f +g)(x)

Answers

Answer:

Step-by-step explanation:

I am pretty sure that is the answer

A function assigns the values. The value of (f +g)(x) for the two given functions f(x)=5x³+2x²–7x+4 and g(x)=3x–7 is 5x³ + 2x² – 4x – 3. The correct option is D.

What is a Function?

A function assigns the value of each element of one set to the other specific element of another set.

Given the two functions such as,

f(x) = 5x³ + 2x² – 7x + 4

g(x) = 3x – 7

Now, the value of (f +g)(x) is the value of the function which is produced when the two of the given function are added together, therefore, the value of the added function can be written as,

(f +g)(x) = f(x) + g(x)

(f +g)(x) = (5x³ + 2x² – 7x + 4) + (3x – 7)

= 5x³ + 2x² – 7x + 4 + 3x – 7

= 5x³ + 2x² – 4x – 3

Hence, the value of (f +g)(x) for the two given functions f(x)=5x³+2x²–7x+4 and g(x)=3x–7 is 5x³ + 2x² – 4x – 3.

Learn more about Function:

https://brainly.com/question/5245372

#SPJ2

help fast it's timed please

Answers

Answer:

180 degrees

Step-by-step explanation:

the sum of all the interior angles of a triangle will always be 180 degrees

Answer: 180 degrees

Step-by-step explanation: just search it up and yes it is 180 degrees

Winston needs at least 80 signatures from students in his school before he can run for class president. He has 23 signatures already. He and two of his friends plan to get the remaining signatures during lunch. If each person gets the same number of signatures, which inequality can Winston use to determine the minimum number of signatures each person should get so he can run for class president?Solve the inequality algebraically.

Answers

Answer:

At least 19 signatures.

Step-by-step explanation:

Winston already has 23 signatures, so he has 57 left to go (80 - 23).

There are 3 people collecting signatures, so the equation will be as following:

3x ≥ 57

To break down this equation, 3x because each person is collecting x number of signatures, and 57, because if you add those signatures upp, then it will have to be at least 57, therefore the operator should be ≥ .

If you solve 3x ≤ 57, then you will find that x ≥ 19, so they each have to have at least 19 signatures.

I hope that you found this helpful!

Mr Goldstein is driving from Houston. The equation y = -45x + 270 represents the numbers of miles that he still has to travel after driving for x hours. Find and intercept the slope and y-intercept of the line that represents this situation.

Answers

Step-by-step explanation:

The y-intercept formula is y=mx+b

(m) is the slope

(b) is the y intercept

So in the given formula -45 would be the slope and 270 is the y intercept.

Hope this helps! If you have any questions on how I got my answer feel free to ask. Stay safe!

Answer:900

Step-by-step explanation:

En tu trabajo de ciencias te toco realizar un experimento de cultivó de hongos en una pieza de pan de harina de trigo y una tortilla de maiz. La secuencia de revisión para la toma de datos será, en el primer caso, cada 15 dias; y en el otro, cada 20 por tres meses. ¿A los cuantos días te tocaría revisar ambos cultivos?

Answers

Responder:

60 días

Explicación paso a paso:

Primer caso = cada 15 días

Segundo caso = cada 20 días

El número de días en los que habrá que comprobar ambos cultivos se puede obtener encontrando el mínimo común múltiplo de 15 y 20

Múltiplo de:

15:15, 30, 45, 60, 75, 90, 105

20:20, 40, 60, 80, 100, 120

El mínimo común múltiplo de 20 y 15 es 60

El día en el que habrá que controlar ambos cultivos es de 60 días

1/3 + (2/5)
9 2/6 + 7 1/6
7 1/4 - 4 5/8
2 1/4 - 1 3/4
3/12 x 4/21
-5/8 x 3
3/4 divided by 2 3/5
5/6 divided by 2

Answers

Answer:

+89

Step-by-step explanation:

Other Questions

original price of a pen:$1.50tax:4% This territory was the site of numerous Spanish missions but was severely depopulated in the 17th century by infectious disease and warfare with other Indian tribes PLEASE HELP ME IM DESPERATE! Choose the sentence below that shows correct use of subordination: While Tom sanded the floors in the living room, Meg painted the kitchen walls. Meg painted the kitchen walls, while Tom sanded the floors in the living room. While Tom sanded the floors in the living room, until Meg painted the kitchen walls. While Tom sanded the floors in the living room Meg painted the kitchen walls. If x=6, find the value of 12). *A radio transmission tower is 150 feet tall. How long should a guy wire be if it is to be attached 5 feet fromthe top and is to make an angle of 20 with the ground? Give your answer to the nearest tenth of a foot.a.159.6 ftc. 154.3 ftb. 424.0 ftd. 438.6 ft 7 stores steps in decision making process what is the meaning of divisor write 50 cm as a fraction of 2 mgive your answers in its simplest form If Randy Pausch, the author of Last Lecture, had written a speech about receiving his cancer diagnosis and what he did following the diagnosis, which organizational structure would he most likely have used?A. chronological orderingB. compare and contrastC. central ideas and supporting detailsD. problem and resolution The temperature, T, for an oven can be described by the equation T = 44m +67 for thefirst 10 minutes after it's turned on, where m is minutes. Find the T-intercept and interpretits meaning in the context of the problem. Write the equation of the line represented by the table below. Thank you anyone for helping! BLANK Washington residents live in the the Okanogan Highlands. Find the parabola with equation y = ax2 + bx whose tangent line at (2, 8) has equation y = 12x 16. The internet's data gathways rely on what kind of hardware devies to route data to its destination? The primary goal of editing is toFind and correct the errors in grammar, mechanics and spelling. A ball is thrown directly downward at 4 m/s from the edge of a high cliff. If needed, use g = 10 m/s2. With zero air resistance, the distance the ball falls during its third second of fall is most nearly28 m4 m29 m12 m57 m A twelve pack of Orange Crush is priced at $3.00. What is the unit rate or the price per soda? What pressure (in atm) does 3.54 moles of chlorine gas at 376 K exert on the walls of its 51.2 L container? Seth grew 12 flowers with 2 seed packets. How many seed packets does Seth need to have a total of 18 flowers in his garden? Solve using unit rates. plzz help me