!!!PLEASE HELP!!!!

How can you find the solution to a system of equations by graphing?

(Look at the image for the answers it’s multi choice)

Answer:80

Assume the number to be 400 for instance,

10% of 400 increased = 400 + ( 10/100 × 400 )

= 400 + 40 = 440

The resulting number decreased by its 10% = 400 - (10/100 × 400)

= 400 - 40 = 360

Now, net decrease = 440 - 360 = 80

Answer:

400.

10% of 400 is 40 (Simply reduce the hundreds place to the tens place)

So now we have 440.

Decrease it by 10% again, and that brings you right back to 400.

Answer:

1/3

Step-by-step explanation:

Answer:

11+ 9 = 20

Step-by-step explanation:

=> 21-9=11

21 - 9 equals to 11 is actually a wrong answer

So in order to find the subtraction problem that will help us truly know whether the equation is wrong

=> 11+ 9 = 20

OR THE SECOND EQUATION IS

=> 21 - 11 = 10

Answer:

3,2

Step-by-step explanation:

Answer:

58 Hours

Step-by-step explanation:

Given:

Martin~114 hours

Esperanza~56

Explanation:

The questions asks "How much longer". When this is asked, we know that we must subtract.

114-56=58

Answer: 58

Answer:

The answer should be 7

Step-by-step explanation:

2³ = 8

4 x 1.5 = 6

8 + 6 = 14

14 ÷ 2 = 7

Answer: The length of the rectangle would be 20 inches and the width would be 14 inches.

Step-by-step explanation:

If the length is 20, first, it’s 6 more than 14, and second it would add up to 40. If the width is 14, it’s 6 less than 20, and adds up to 28. If you add those two together, you’d get your total of 68 inches for the perimeter!

Answer:

Answer is B cuz the former no. is bigger than the latter

Answer:

Step-by-step explanation:

The exponent is 5, making it 10 to the power of 5. As the exponent is positive, the solution is a number greater than the origin or base number. To find our answer, we move the decimal to the right 5 time(s):

Answer:

5.928 liters is the correct answer

Step-by-step explanation:

Since 1 milliliter is 0.001 liters

Multiply both values by 5928.

Therefore... 5928 milliliters equals 5.928 which is letter D

Answer:

The answer is 0.5928 liters

Step-by-step explanation:

1 liter is made of 1000 milliliters

So 5,929 ÷ 1000

gives us 0.5928

Answer:

Given, length, l = 3/8 inches

breadth, b =2/3 inches

We have

area = l × b

= 3/8 × 2/3

= 6/24

Answer:

option B

Step-by-step explanation:

hey mate i think it is option B

i hope it  helps

Answer:

1. Even

2. Neither

3. Even

4. Odd

Equations: 1 and 3 are even

Step-by-step explanation:

1. f(-x) = (-x)^4 - (-x)^2

         = x^4 - x^2 Even

2. f(-x) = (-x)^2 - 3(-x) + 2

          = x^2 + 3x + 2 Neither

3. f(-x) = -2

         = -2 Even

4. f(-x) = 5(-x)

          = -5x Odd

I hope this helps!

Using the normal distribution, it is found that P(X = 8) is equals to zero.

In a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

Hence, from the last bullet point, it is found that P(X = 8) is equals to zero.

More can be learned about the normal distribution at https://brainly.com/question/24663213

Answer:

Step-by-step explanation:

A rhombus is a quadrilateral where all four sides are equal and the opposite angles are equal.

3x - 4 = 3y + 8 = -2x - 9 = 39

The value of x is 43/3

The value of y is 31/3

The value of z is -24

A rhombus is a quadrilateral where all four sides are equal and the opposite angles are equal.

We have,

Rhombus:

All four sides are equal.

So,

3x - 4 = 3y + 8 = -2x - 9 = 39

Now,

3x - 4 = 39

3x = 39 + 4 = 43

3x = 43

x = 43/3

3y + 8 = 39

3y = 39 - 8

3y = 31

y = 31/3

-2z - 9 = 39

-2z = 39 + 9

-2z = 48

z = -24

Thus,

The value of x is 43/3

The value of y is 31/3

The value of z is -24

Learn more about rhombus here:

https://brainly.com/question/12665650

#SPJ2

The diameter of the ball in real life given the scale of the drawing is 150cm.

A scale drawing is a reduced form in terms of dimensions of an original image / building / object

Scale of the drawing = original dimensions / dimensions of the scale drawing

10cm x 15 cm - 150cm

To learn more about scale drawings, please check: https://brainly.com/question/26388230

Answer: A

Step-by-step explanation:

Straight away, we can see there is some sort of reflection over the y-axis.

Then, we can see that, there is a reflection over the x-axis.

This matches up with A.

Answer:

  (3x +2w)/(2x -3w)

Step-by-step explanation:

The usual rules for adding and dividing fractions apply:

  (a/b) +(c/d) = (ad +bc)/(bd) . . . . . . . use a common denominator

  (a/b)/(c/b) = a/c . . . . . . . . . . . . same denominators "cancel"

__

  [tex]\dfrac{\dfrac{3}{w}+\dfrac{2}{x}}{\dfrac{2}{w}-\dfrac{3}{x}}=\dfrac{\dfrac{3x+2w}{wx}}{\dfrac{2x-3w}{wx}}=\boxed{\dfrac{3x+2w}{2x-3w}}[/tex]

Answer:

Solving method

360°÷8 (number of sides)

= 45°

Answer:

828 in²

Step-by-step explanation:

To find the surface area of a triangular prism, you find the area of each side and add them together.

Find the area of each rectangular side:

Side 1 :  9 × 20 = 180 in²

Side 2 : 15 × 20 = 300 in²

Side 3 : 12 × 20 = 240 in²

Find the area of the triangular sides:

Area of a Triangle = [tex]\frac{1}{2}[/tex]bh

As you can see, 9 and 12 both work as the height/base for the triangular sides, so

Δ Side 1 = [tex]\frac{1}{2}[/tex]bh = [tex]\frac{1}{2}[/tex](9)(12) = 54

Δ Side 2 is also 54.

Add the areas of all the sides together:

180 + 300 + 240 + 54 + 54 = 828 in²

For problems 1, 2, and 4, check out this link

https://brainly.com/question/27021415

as they were answered there earlier.

=======================================================

Problem 3

A triangle cannot be constructed with these parameters.

----------------------------

Explanation:

Use the Law of Sines to find angle B

sin(A)/a = sin(B)/b

sin(120)/12 = sin(B)/13

sin(B) = 13*sin(120)/12

sin(B) = 0.93819419

B = arcsin(0.93819419) or B = 180 - arcsin(0.93819419)

B = 69.75047247 or B = 180 - 69.75047247

B = 69.75047247 or B = 110.24952753

These angle values are approximate.

-----------

If B = 69.75047247, then,

A+B+C = 180

C = 180 - (A+B)

C = 180 - (120 + 69.75047247)

C = -9.75047247000001

We get a negative result which isn't valid.

This means B = 69.75047247 isn't valid either.

-----------

If B = 110.24952753, then,

A+B+C = 180

C = 180 - (A+B)

C = 180 - (120 + 110.24952753)

C = -50.24952753

We get a similar conclusion here as well.

-----------

No matter what value of B we go with, we end up with a negative value for angle C.

Negative angles are not allowed.

Therefore, we cannot construct a triangle with sides a = 12, b = 13 and angleA = 120 degrees.

This is one example of an SSA triangle leading to no possible solutions. Refer to the SSA ambiguous case for more info.

-----------

Check out the diagram below. Imagine that point B can be anywhere on the dotted circle. Imagine it can rotate around as in an animation. This circle is centered at point C and has radius a = 12. No matter where point B is placed, we cannot get it to land on the horizontal line to therefore form a triangle. Simply put: side a = 12 is too short.

I used GeoGebra to make the diagram and make sure it's to scale. This is to visually verify that we cannot construct such a triangle with these parameters.

Answer:

reduction

Step-by-step explanation:

This image shows a reduction of the triangle because the original image of the triangle has a side of 3.4. The image on the right has a shorter length: 1.7. From the information that is given, the image shows reduction.

There is one input being mapped into two different outputs, so this is not a function. The correct option is D.

A function is a relation that maps elements from one set (the domain) into elements from another set (the range). Such that each element from the domain can be mapped into only one element from the range.

In this case, the table is:

So, the input "12" appears twice, the first time is mapped into 300 miles, and the second time is mapped into 350.

So the same value from the domain is being mapped into two different values of the range, meaning that this is not a function. So the correct option is D.

If you want to learn more about functions, you can read:

https://brainly.com/question/13136492

Answer:

36%

Step-by-step explanation:

Area of circle is

[tex]\pi {r}^{2} [/tex]

If the radius is decreased by 20%. Then the radius will be

80% of the original radius.

So our radius is 0.8.

So our area is

[tex]\pi(0.8r) {}^{2} [/tex]

[tex]\pi(0.64 {r}^{2} )[/tex]

Since pi is constant, the radius only really matters.

We went from

[tex]1 {r}^{2} [/tex]

to

[tex]0.64 {r}^{2} [/tex]

So our area will decrease by 36%

Proof: Let the radius be 10.

So the area of circle will be

[tex]\pi(10) {}^{2} = 100\pi[/tex]

Let our other radius is 8 because 8 is a 20% decrease of the orginal radius

[tex]\pi(8) {}^{2} = 64\pi[/tex]

Next, we subtract the area to find decrease in area

[tex]100\pi - 64\pi = 36\pi[/tex]

Since pi is constant, we can ignore it so our decrease in area is 36%

-3.75 +4.35 -6.55

-3.75 + 4.35 = 0.6

0.6 - 6.55 = - 5.95

- 3.75 + 4.35 - 6.55 = - 5.95

Answer:

D

Step-by-step explanation:

it is d because you have to subtract that to get 35

Answer:

13

Step-by-step explanation:

Given:

13, 6, 24, 18, 33, 5, 13, 48, 9, 11, 36, 28, 15, 6, 13

To Find:

Median

Note:

Finding Median:

⇒ Arrange data values from lowest to highest value

⇒ The median is the data value in the middle of the set

⇒ If there are 2 data values in the middle the median is the mean of those 2 values.

Solve:

5, 6, 6, 9, 11, 13, 13, 13, 15, 18, 24, 28, 33, 36, 48

5, 6, 6, 9, 11, 13, 13, 13, 15, 18, 24, 28, 33, 36, 48

5, 6, 6, 9, 11, 13, 13, 13, 15, 18, 24, 28, 33, 36, 48

5, 6, 6, 9, 11, 13, 13, 13, 15, 18, 24, 28, 33, 36, 48

5, 6, 6, 9, 11, 13, 13, 13, 15, 18, 24, 28, 33, 36, 48

5, 6, 6, 9, 11, 13, 13, 13, 15, 18, 24, 28, 33, 36, 48

5, 6, 6, 9, 11, 13, 13, 13, 15, 18, 24, 28, 33, 36, 48

5, 6, 6, 9, 11, 13, 13, 13, 15, 18, 24, 28, 33, 36, 48

As you can see now.. Median is 13

[RevyBreeze]

Answer:

Median Arrayed Data :From ascending order; 5,6,6,9,11,13,13,13,15,18,24,28,33,36,48

Now,

Median= n+1/2

=15+1/2

=16/2

=8

5,6,6,9,11,13,13,13,15,18,24,28,33,36,48

Median = 8 th term= 13.

Hence the median is 13.

Answer:

Base 10 is always the decimal system which is from (0-9).

Answer: In 4 HOURS they will be 468 miles apart.

Step-by-step explanation:

1st car DATA:

rate = 59 mph ; time = x hrs. ; distance = 59x miles

2nd car DATA:

rate = 58 mph ; time = x hrs. ; distance = 58x miles

EQUATION:

distance + distance = 385

59x + 58x = 468

117x = 468

x = 4 hours.