how many solutions are there to each of these equations?

How Many Solutions Are There To Each Of These Equations?

Answers

Answer 1

Answer:

first one, put value of x= -3 and y = 0

second one, pit vale of x=7 and y= -7

Step-by-step explanation:

first one,

-14(-3) -20(0) =42

or, 42-0 = 42

or, 42 = 42

proved

second one,

-14(7) -20(-7) = 42

or, -98 + 140=42

or, 42 = 42

proved


Related Questions

he table shows the heights of students in a group.


Student Height (in inches)
A 45
B 48
C 49
D 40
E 53


What is the mean height of the students in the group?
47 inches
49 inches
51 inches
53 inches

Answers

Answer:

47 inches

Step-by-step explanation:

45 + 48 + 49 + 40 + 53 = 235

235/5 = 47

It would be 47 inches mean because you add them all together, and then divide it by the amount you had, which its five different numbers, so thats what you would use to divide. So all the numbers added up would be 235 and then divided by 5 is 47 .

Help I know that I have to move 3x to 4x with will be -3x and then I will subtract it then I will be left with -x and then I'll be with -x -3 what do I do after ?

4x -3 = 3x

Answers

Answer:

[tex]\sf \boxed{\bold{x = 3}}[/tex]

Explanation:

4x -3 = 3x

subtract both sides by 4x

4x - 3 -4x = 3x - 4x

group similar terms

4x - 4x - 3 = -x

simplify

-3 = -x

divide both sides by -1 or cancel out the negatives

x = 3

Check:

4(3) -3 = 3(3)12 - 3 = 99 = 9

L.H.S = R.H.S  Thus x = 3 confirmed

Answer:

x = 3

Step-by-step explanation:

We are trying to move all terms that have x on one side of the equal sign and terms that  do not have an x on the other side of equal sign.

terms with x = terms without x

            4x -3 = 3x , subtract 3x from both side of the equation

      4x -3x -3 = 3x -3x

      4x -3x -3 = 0 , add 3 to both sides of the equation

4x -3x -3 + 3 = 0 + 3

          4x -3x = 3 , combine like terms

                 x = 3

Or

We can think we move each term where we want it, yet keep in mind that once we cross the equal sign we change the sign of the term if addition or subtraction are the only operations involved.

4x -3 = 3x , 3x is positive so will become negative on the other side of the equal sign and -3 is negative so will become positive on the other side.

4x -3x = 3

        x = 3

The graph shows the location of point P and point R. Point R is on the y-axis and has the same y-coordinate as point P. P (n, 3). Point Q is graphed at (n, 2). The distance from point P to point Q is equal to the distance from point P to point R. What is the distance from point P to point Q? What is the value of n? Explain how you determined the distance from point P to point Q, and the value of n. Enter your answers and your explanations in the space provided.

Answers

Answer:

1

Step-by-step explanation:

have you smiled today? its very important:)

The Perimeter of Rhombus WXYZ is 240 cm and XY = 5k + 10
What is the value of'k?
w
х
A +
(B) 9
(С 10
[7 7
(D2
E 16
Z

Answers

It has to be b and c because it’s 9 and 10 and you have to add or subtract those numbers
Hope this helps
Have a good day!

help pls i'm not good at math

Answers

Answer: x = 56

Step-by-step explanation:

The two angles 'z' and 124 add up to form a straight line. The angle of a straight line is 180 degrees. Therefore, we can say that:

[tex]z+124=180[/tex]

Subtract 124 on both sides to isolate the angle 'z' to get:

[tex]z=56[/tex]

Answer:

z=56 degrees

Step-by-step explanation:

in total the line will equal 180 so just do 180-124 and you get 56.

Amigranent
Practice with lines cut by a transversa
What is the value of x?
(2x - 5)°

Answers

Answer:

70

Step-by-step explanation:

Same side interior angles of parallel lines cut by a transversal are supplementary, so their measures have a sum of 180°.

2x - 5 + 45 = 180

2x + 40 = 180

2x = 140

x = 70

I need help on this ASAP.

Answers

The seattle great wheel is an illustration of sectors, arcs, circumference and area of circles

The circumference of the wheel

The diameter is given as:

d = 175 feet

The circumference (C) is calculated as:

C = πd

This gives

C = 3.14 * 175

C = 549.5 feet

Hence, the circumference of the wheel is 549.5 feet

The area of the wheel

This is calculated as:

A = π(d/2)^2

This gives

A = 3.14 * (175/2)^2

A = 24040.625

Hence, the area of the wheel is 24040.625 square feet

The central angle (degrees)

This is calculated as:

θ = 360/n

Where n is the number of capsules

So, we have:

θ = 360/42

This gives

θ = 8.57 degrees

Hence, the central angle of the wheel in degrees is 8.57

The central angle (radians)

This is calculated as:

Radians = Degrees × π/180

So, we have:

θ = 360/42 * π/180

This gives

θ = π/21 rad

Hence, the central angle of the wheel in radians is π/21 rad

Arc length between two capsules

This is calculated as:

L = θ * d/2

So, we have:

L = π/21 * 175/2

This gives

L = 175π/42

Hence, the arc length between two capsules is 175π/42

Area of sector between two capsules

This is calculated as:

A = 0.5 * (d/2)^2 * θ

So, we have:

A = 0.5 * (175/2)^2 * π/21

This gives

A = 168π

Hence, the area of sector between two capsules is 168π

Read more about sector areas and arc lengths at:

https://brainly.com/question/4115882

A right triangle is shown
5
x
9.1
Enter the value of x. Round your answer to the nearest hundredth

Answers

Answer:

10.38

Step-by-step explanation:

PLEASE HELP I WILL MARK BRAINLYIST IF CORRECT The following graph shows a proportional relationship.
What is the constant of proportionality between y and x in the graph?

Answers

It’s 0.25 if it’s wrong then I’m also sorry

Enter the measure of ∠TOM, in degrees. (Enter just the number)

Answers

Answer: 150

Step-by-step explanation:

We know (5x-15)+(2x)=90 degree

so we can solve x = 15

plug in 5(15) - 15 = 60

60 + 90 = 150

Answer:

150

Step-by-step explanation:

m∠TOG = m∠TOP + m∠POM + m∠MOG

m∠TOG = 180°

m∠TOP = 90°

m∠POM = (5x - 15)°

m∠MOG = (2x)°

90 + ( 5x - 15 ) + 2x = 180 ⇒ 5x - 15 + 2x = 90 ⇒ x = 15

m∠TOM = 90° + m∠POM

m∠TOM = 90° + (5×15 - 15)° = 150 °


What is the slope of
the line?

Answers

Slope = y/x

There’s a point at (2,5). X =2 and y= 5

So 5/2 = 2.5

Meera and Ben saved some money. 3/5 of Meera’s money are twice the money of Ben’s. Whats the new rapport between them?

Answers

Answer:

David used 1/2 of apple juice for every 1/4 cup of cranberry juice to make a fruit drink

The value of x is - 1/4 . Order these expressions from least to greatest:

x
1 − x
x − 1
- 1 ÷ x
Your answer:

Answers

-1 divided by x
1 - x
X - 1

Find the value of x.
103°
10x - 7)º
x = [?]°
Enter

Answers

Answer:

11º

Step-by-step explanation:

Because of vertical angles: 103=10x-7

103+7=10x

110=10x

x=11º

Which congruence theorem can be used to prove WXZ ≈ YZX?



O AAS
O ASA
O SAS
O HL

Answers

Answer:

AAS

Step-by-step explanation:

angle w=angle y

angle z=angle x

wz=xy

The graph of y= (x^3) +6
is translated 4 units to the right.
The translated graph has equation y=f(x).
Work out f(x).

Give your answer in the form
x^3 + ax^2 + bx + c
where a, b and c are integers.

Answers

Answer:

[tex]y=x^3-12x^2+48x-58[/tex]

Step-by-step explanation:

Transformation Rules

[tex]f(x+a)=f(x) \: \textsf{translated}\:a\:\textsf{units left}[/tex]

[tex]f(x-a)=f(x) \: \textsf{translated}\:a\:\textsf{units right}[/tex]

Given equation: [tex]y=x^3+6[/tex]

If the graph of the equation is translated 4 units to the right, then we replace [tex]x[/tex] with [tex](x-4)[/tex]:

[tex]\implies y=(x-4)^3+6[/tex]

[tex]\implies y=(x-4)(x-4)(x-4)+6[/tex]

[tex]\implies y=(x-4)(x^2-8x+16)+6[/tex]

[tex]\implies y=x^3-8x^2+16x-4x^2+32x-64+6[/tex]

[tex]\implies y=x^3-12x^2+48x-58[/tex]

Answer:

f(x) = x³ - 12x² + 48x + 58

Step-by-step explanation:

Given

y = x³ + 6

Translating 4 units right

x → x - 4f(x) = (x - 4)³ + 6f(x) = x³ - 3(x)²(4) + 3(x)(4)² - (4)³ + 6f(x) = x³ - 12x² + 48x - 64 + 6f(x) = x³ - 12x² + 48x + 58

show that the derivative of an odd function is even function and viceversal​

Answers

Step-by-step explanation:

Well, it's hard to generalize this. But I can show you a few examples using the power rule and some derivatives of trig functions. Lets say we have a function:

[tex]f(x) = {x}^{n} [/tex]

Then you should know it's derivative is:

[tex] \frac{df}{dx} = n {x}^{n - 1} [/tex]

For polynomial functions, a subtraction of 1 from the exponent will turn any odd function into an even, and any even function to an odd. An example of this is x^3, which is odd. The derivative is 3x^2, which is even. Another example, this time of a trig function, is sine and cosine. Sine is odd, while cosine is even. The derivative of sine is cosine, and the derivative of cosine is negative sine.

What is the value of H in the original equation?

Answers

Answer:

49

Step-by-step explanation:

We need the square root of H to equal 7, so we can just square 7 to get the answer. So 7x7 = 49.

Find the sum of the first 150 positive even integers.

Answers

Answer:

22650

Step-by-step explanation:

Sketch a generic rectangle to represent the product 3(x+2). Then write an equivalent expression​

Answers

Answer:

  3x +6

Step-by-step explanation:

The rectangle representing the product 3(x+2) will have dimensions 3 and (x+2). It can be divided into portions with areas 3·2 = 6, and 3·x = 3x.

An equivalent expression is ...

  3x +6

Macy has $3 in her piggy bank. If this is 10% of her monthly allowance, what is her monthly allowance

Answers

.3 or 30 cents. you have to move the decimal place one to the left since it’s 10%

Which choice is equivalent to the expression below?

√-81

A. √9i

B. i√9

C. 9i

D. -9

E. -√9

Answers

Answer:

Step-by-step explanation:

Remark

√-81 breaks down to two roots

√81 = 9√-1 = i

Solution

√-81 = i9

Answer

C

90 POINTS!! IM STUCK!!
2. Alicia is writing the program for a video game. For one part of the game she uses the rule to move points on the screen.
(a) What output does the rule give when the input is -6,0 ? Show your work.
(b) What output does the rule give when the input is 3, -4 ? Show your work.
(c) Is the rule a function? Explain why it is or why it is not

Answers

Answer:

(x-3,y+4) is the rule

a. -6, 0 input. This would equal (-6)-3 for x and (0)+4 for y. Answer: -9, 4

b. 3, -4 input. This would equal (3)-4 for x and (-4)+4 for y. Answer: -1, 0

c. The rule is a function because each input only has one output

Answer:

Question

Alicia is writing the program for a video game.  For one part of the game she uses the rule (x, y) → (x - 3,y + 4) to move points on the screen.

(a)  What output does the rule give when the input is (-6, 0)?
Show your work.

(b)  What output does the rule give when the input is (3, -4)?
Show your work.

(c)  Is the rule a function? Explain why it is or why it is not.

Solution

(a)  Input (-6, 0) → Output (-6 - 3, 0 + 4) = (-9, 4)

(b)  Input (3, -4) → Output (3 - 3, -4 + 4) = (0, 0)

(c)  The rule is a one-to-one function as each value in the range (y-values) corresponds to exactly one value in the domain (x-values).


The age in Australia has a normal distribution with a mean 45 years and standard deviation 11 years. The children are classified as the youngest 33% of population. At what age do children become adults in Australia
20
30
40
50

Answers

Answer:

40 y/o

Step-by-step explanation:

33% is a z-score of -.44

  -.44  standard deviations

45 - .44(11) = ~40 y/o      Seems an odd answer !

What is greater -3 pi or -9

Answers

-3 pi since it isn’t a big negative number going towards being positive witch is more higher
if -3 and pi are both connected, then the answer is -9 because -3x3.14 is about -9.425
if pi is a separate answer, then it is pi
hope this helps :)

The table shows some ordered pairs that belong to project function H what is the range of H

PLEASE HELP ASAP WILL MARK BRAINIST ONLY IF YOUR RIGHT THOO

Answers

Last one , because you can see h go down until -5 then starts going up again for every x. Must be a parabola with vortex at y=-5.

Note down

If a pair be (x,y)

Then

x is domainy is range

Here the pairs are

(-6,43)(-5,22)(-4,7)(-3,-2)(-2,-5)(-1,-2)

Range:-

{-2,-5,-2,7,22,43}

There are two taxi cab companies in Redwood. Their charges are listed below.

Redwood Taxi
$2.00 for the first mile
plus
$1.00 for each additional mile

Max's Taxi Service
$5.00 for the first mile
plus
$0.50 for each additional mile

According to the graph below, for how many miles will the charges from both taxi cab companies be equal?

1. 8
2. 1
3. 7
4. 4

Answers

I think the answer would be a

Pls help math will give brainlest

Answers

Answer:

Rectangular prism)1344

Rectangular pyramid)138.53

Cylinder)326.73

Cone)400.21

Triangular prism) I don't know the answer because I can't tell what sides the length is for

A county fair charges $5 for tickets and $2 for each ride. What is the y-intercept in this scenario, where y represents the total cost and x represents the number of rides ridden?

7

3

5

2

Answers

Answer:

y=2x+5

y-intercept⇒x=0

y=2(0)+5 = 5

the answer is 5

hope this helps :)

Solve the following inequality for x X - 9. 2 (9-×)

Answers

Xx-9.2(9-x)
-x 9.2 (9-x)
-X x 9.2 x 9x9.2 (-x)
-Xx9.2 + x 9.2 x
-82.8x + 9.2 x2 is exponent
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