Mathematics College

1) How many solutions does x + y = 12 have?

Answers

Answer 1

Answer:

Infinitely many solutions

Step-by-step explanation:

x + y = 12 is a linear equation in two variables.

Linear equation in two variables have infinitely many solutions.

Related Questions

Arithmetic sequence

Answers

Answer:18

Step-by-step explanation:

Note: Mathematicians start counting at 1, so by convention, n=1 is the first term. So we must define what the first term is. Then we have to figure out and include the common difference.

Taking a look at the examples again,

Sequence: 1, 2, 3, 4, … | Formula: a(n) = n + 1 | Recursive formula: a(n) = a(n-1) + 1, a(1) = 1

Sequence: 3, 8, 13, 18, … |Formula: b(n) = 5n - 2 | Recursive formula: b(n) = b(n-1) + 5, b(1) = 3

A flagpole casts a shadow that is 11 feet long. At the same time, a girl standing nearby who is 3 feet tall casts a shadow that is 2 feet long. How tall is the flagpole to the nearest foot?​

Answers

Set up the equation with variable x representing the height of the flag pole

X/11 = 3/2

Multiply the numerator in the first fraction by the denominator in the second (x times 2)

Now reverse this with the denominator in the first equation and the numerator in the second (11 times 3)

This gives us

2x = 33

Divide both sides by 2

X = 16.5

Rounded the the nearest foot: x = 17ft

Answer:

17 feet

Step-by-step explanation:

The two shadows are parallel lines and are part of similar triangles formed.

Corresponding sides of similar triangles have same ratio. Let the length of the flagpole be x.

Then we have ratios:

x/11 = 3/2x = 11*1.5x = 17 feet (rounded up)

answer and ill give brainliest

Answers

Answer:

1/25 or 2/5 i guess

Step-by-step explanation:

Answer:

A) 3/100

Step-by-step explanation:

3/10x1/10=3/100

can someone help me ?

Answers

Answer:

What question are you referring to? a question references question 5 and 6 which aren't displayed.

What is the circumference of a circle with a diameter of 2 feet? Use 3.14 for
pi.

A 5.14 ft
B. 6.28 ft
C. 3.14 ft
D. 12.56 ft

Answers

It will be B. The formula for finding the circumference of a circle is pi x diameter. So it would be 3.14 x 2. And when you calculate it you get 6.28.

6.28 feet is the  circumference of a circle with a diameter of 2 feet

What is Circle?

A circle is a shape consisting of all points in a plane that are at a given distance from a given point, the centre.

The circumference of a circle is given by the formula:

Circumference=2πr

Where two times of r is equal to diameter

circumference =πd

The diameter is given as 2 feet, so we can substitute this value into the formula:

circumference = 3.14 x 2

Three point one four times of two

We get six point two eight

= 6.28 feet

Therefore, 6.28 feet is the  circumference of a circle with a diameter of 2 feet

To learn more on Circles click:

https://brainly.com/question/11833983

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A)
450 mm2
B)
67,500 mm2
C)
600 mm2
D)
150 mm2

Answers

Answer:

im pretty sure its c

Step-by-step explanation:

Which expression is equivalent to 21d + 18

A) 21(d + 18)
B) 21( d + 6)
C) 3(7d + 6)
D) 3(7d + 18)​

Answers

C! Is the correct answer

Answer:

it’s c

Step-by-step explanation:

i’m smart

PLEASE HELP ME SOLVE BOTH

30 POINTS!!!

Answers

Answer:

1) x = 4

2) a square root cannot be equal to a negative value

Step-by-step explanation:

1) add 1 to each side

2) square each side

(√2x + 1)² = 3²

2x + 1 = 9

2x = 8

x = 4

2) subtract 4 from each side

√2x + 1 ≠ -5

(x+3) + (4x-1) find the sum

Answers

Answer:

5x+2

Step-by-step explanation:

Answer= 5x-2

I hope this helps

PLEASE ANSWER ASAP
which scatterplot does NOT suggest a linear relationship between x and y?
A) I only
B) I and ll only
C) Ill and lV only
D) I, lll, and IV only​

Answers

Answer:

B

Step-by-step explanation:

Answer:

Answer is C) 3 And 4 only

Step-by-step explanation:

A zookeeper fills a bucket with f pounds of fish 4 times daily. If he carries 45 pounds of fish a day, which equation can be used to find how many pounds of fish are in each bucket?

Answers

The answer is B

believe me im great at math. I won 52 mathmatician competitions in only 1 month

Please help me solve and explain these two questions:

1. Find f'(x) for f(x) = ln(x^2 + e^(3x))

2. Find dy/dx by implicit differentiation for ysin(x) = xsin(y)

Answers

Answer:

go by basics u will get it easier

Step-by-step explanation:

assume X2 + e3x as some function t

now find derivative you get (1/t )dt/dx

now find dt /dx. simply derivative with respect to x

for second question use formula

dy/dx = - partial derivative of function with x / partial derivative of function with respect to y

i to the power of 121 is equal to what

Answers

Answer:

1

Step-by-step explanation:

Hope this helps and have a great day!!!!!

Find the slope of the line through each pair of points(-13,-18),(0.-17)

Find the slope of the line through each pair of points(-18,-9),(-17,-16)

Find the slope of the line through each pair of points(8,18),(-13,20)

Find the slope of the line through each pair of points(7,-10),(3,-10)

Find the slope of the line through each pair of points(-17,-15),(-17,10)

Find the slope of the line through each pair of points(-1,-13)(6,-12)

Answers

The slope formula is

=2−1/2−1

For the first one it would be:

-17-(-18)/0-(-13)=1/13

m=1/13



Second one:

m=−16−−9/−17−−18= -7/1

m=-7

For the there one:

Slope =−12−−13/6−−1=1/7

m=1/7





I hope it was helpful. If you have any questions let me know.

Drag a figure into each blank space so that the two figures in the row match the description.

Answers

What’s the description?


Darren makes $10 per hour. Next semester, he will be making
$14 per hour. What rate of increase does this represent?

Answers

4%es la tasa de aumento

solve for X: 2X/5 -1 =59
​

Answers

Answer:

60 is the best answer right

What is the value of the expression 4 × (2a − 1) if a = 3?
A16


B20


C23


D25

Answers

B I’m going to guess

Ben is decorating his home with vases of flowers. He bought glass vases that cost $22 each and ceramic vases that cost $14 each. The total cost of the vases came to more than $172. Also, Ben bought no more than 10 vases in all.

Which system of inequalities can be used to determine the number of glass vases, x, and the number of ceramic vases, y, that Ben could have bought?

Answers

The system of inequalities that can be used to determine the amounts is given by:

22x + 14y > 172.x + y < 11.

What is a system of equations?

A system of equations is when two or more variables are related, and equations are built to find the values of each variable.

A system of inequalities works similarly to a system of equations, just the equality symbol is replaced by an inequality symbol(less, more, different,...).

In this problem, the variables are:

Variable x: Number of glass vases.Variable y: Number of ceramic vases.

He bought glass vases that cost $22 each and ceramic vases that cost $14 each. The total cost of the vases came to more than $172, hence:

22x + 14y > 172.

Also, Ben bought no more than 10 vases in all, hence:

x + y < 11.

More can be learned about a system of equations at https://brainly.com/question/24342899

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Find the value of x.

Answers

Answer:

16

Step-by-step explanation:

All sides of the triangle are the same length.

Please help I’ll give brainleist

Answers

The fourth one I know this one already

Please help with this question asap

Answers

C.
12/1 * 3/5 = 36/5

Hope this helps!!!!

Answer:

36/5

Step-by-step explanation:

Did it in my head, hopefully its correct

Help me I’ll mark brainlist!!Please help!

Answers

The slope is 6 your welcome

how many triangles can be constucted measuring 60°, 60°, and 40°​

Answers

Answer:

None, the sum of those angles does not equal 180 degrees

Answer:

none of the traingle can be constructed

The answer of this question is none. The sum of these three angles is 160°. So, none of the triangles can be constructed with angles measuring 60°, 60° and 40°

60°+60°+40°=160°

The sum of three angles is 160°

so, none of the traingle can be constructed with angles measuring 60°,60°and 40°.

Step-by-step explanation:

Hope it is helpful....

There were two partners Fred and jack Fred can paint 3 paintings per hour, and jack can paint 2 paintings per hour Fred has already painted 9 paintings and Jack has completed 10 paintings they took a break when they finished the same total number of paintings how many paintings did they each make in total? How long will it take each painter?

Answers

Answer:

bbbdbrhrhfhdbfhfhchchfhffh

4. There are 9x - 7 customers in a store on Monday and 5x + 15 customers on Tuesday. What is the total number of customers for the two days? *

Answers

Answer:

14x +8

Step-by-step explanation:

9x -7 + 5x +15

9x +5x -7 +15

Which of the following is a power function? Select all correct answers.

Answers

Answer:

The 1st, 4th, and 5th

Step-by-step explanation:

A power function is a function with a single term that is the product of a real number, a coefficient, and a variable raised to a fixed real number.


Solve for x so that lines m and n are parallel​

Answers

Answer:

x=15

Step-by-step explanation:

the angles are supplementary meaning that they will add up to equal 180 so we write the equation

6x+10+4x+20=180 and solve for x

step 1 combine like terms 6x+4x =10x and 10+20=30

10x+30=180

step 2 subtract 30 from each side

10x=150

step 3 divide each side by 10

x=15

Step-by-step explanation:

if the lines are parallel it means they are equal so,

6x+10=4x+20

6x-4x=20-10

2x=10

2x=10

2 2

x=5

6(5)+10 4(5)+20

30+10 20+20

40 40

it means the answer is 40

please help me thank you

Answers

Answer:

8x - 7y = 56

Step-by-step explanation:

in order for lines to be parallel they need to have the same slope, the easiest way to determine if they have the same slope is to change the equations into y = mx + b form by solving for y and seeing where m=8/7

so 8x - 7y = 56

-7y = 56 - 8x

y = 56/-7 -8x/-7

y = -8 + 8/7 x

en la fiesta de ana ay chocaletes chicles y paletas a 10 le gustan los chicles y 7 las paletas y solo a dos le gustan los chicles​

Answers

Answer:

19

Step-by-step explanation:

Si solicita el total, el total es 10 + 7 + 2, que es 19.

¡Marque como más inteligente!

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