Mathematics High School

The figures are similar. Find x.

Pls help meee

Answers

Answer 1

8/5 = 1.6 meaning that the scale factor = 1.6 therefore you do 8 x 1.6 = 12.8 x=12.8

Related Questions

A credit card is like a loan.

Select the three statements that explain why.

Answers

Answer:

The top right is the only incorrect one

Step-by-step explanation:

When money comes directly out of your bank account that is considered debit, not credit.

PLS HELP PLS HELP
If x = -4 and y = 3x – 1, then y
equals what number?

I NEED TO FINISH THIS <3

Answers

Answer:

y=-13

Step-by-step explanation:

if x=-4 and y=3x-1,

plug the value for x into the y= equation:

y=3(-4)-1

multiply through distributing 3

y=-12-1

y=-13

hope this helps <3

What is the two different values of the digit 8 in the number 428. 87?

Answers

Answer:

8 and .8 or 8/10

Step-by-step explanation:

The 1st 8 is in the ones place, so it's value is 8.

The 2nd 8 is in the tenths place, so it's value is .8 or 8/10

Explain for me functions in mathematics

Answers

Step-by-step explanation:

You can say that a function take input and outputs something back. for example, let's y = X + 3. You may think this is a equation.Yeah it is but it is also a function. The original function notation is for example f(X) = X+3.But we set y = f(X) so it turn out to be y=X+3.Basically these two have the same meaning.X is a input in the function above.If you set X= 5,the input is now 5 and you will get a kinda output of 5+3 =8.so y= 8 or f(5) = 8.That's all.You can check out more on the internet.

Which statements are true? check all that apply. the data is best represented by an exponential model. the data is best represented by a quadratic model. if the price is $5 per unit, the expected profit is approximately $4,686. if the price is $80 per unit, the expected profit is negative. as the price per unit increases, the profit increases indefinitely.

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The statements true are B)The data is best represented by a quadratic model. and C) If the price is $5 per unit, the expected profit is approximately $4,686.

We have the Information regarding the data is given below

What is the meaning of expected profit?

Expected profit is the probability of receiving a certain profit times the profit, and the expected cost is the probability that a certain cost will be incurred times the cost.

The data should be best presented by the quadractic model.

In the case when the price should be $5 per unit so the profit should be $4,686.

Therefore,option B and option C these two options are correct.

Theefore the true statements are,The data is best represented by a quadratic model. and If the price is $5 per unit, the expected profit is approximately $4,686.

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Answer:

b,c

Step-by-step explanation:

trust

To either side kneel two high-court functionaries, dressed very like the oba, but with plainer headdresses and fewer neck-rings. they wear belts hung with small crocodile heads, the emblem of those authorized to conduct business with europeans – and the heads and shoulders of two tiny europeans can be seen floating in the background. the europeans are portuguese, who from the 1470s were sailing down the west coast of africa in their galleons on their way to the indies, but who were also seriously interested in west african pepper, ivory and gold. –a history of the world in 100 objects, neil macgregor which details from the passage help readers visualize the plaque? check all that apply. "plainer headdresses and fewer neck-rings" "belts hung with small crocodile heads" "the heads and shoulders of two tiny europeans" "sailing down the west coast of africa" "west african pepper, ivory and gold"

Answers

Answer:

A - B - C

Step-by-step explanation:

edge

The subtleties which are obvious in both the selection and the picture are:

Ceremonial jewelleryGovernment leadersEuropean tradersWhat is the context of the Bennin plaque?

Picture result for Benin plaque metal plaques helps metal plaques that were used to embellish the Oba's castle are among the most notable of the multitude of regal specialities of Benin.

Albeit habitually portrayed as Benin Bronzes most plaques are made of leaded metal in different organizations. It is broadly acknowledged that they date to the sixteenth seventeenth hundred of years.

For more information about Benin plaque, refer to the following link:

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#SPJ2

Pls help…

A rectangular prism has volume 1,392 cubic feet, length 24 feet, and
height 29 feet. Find its width, in feet.

Answers

Answer:How to Find the Height of a Rectangular Prism when the Volume of a Rectangular Prism is given? The height of a rectangular prism can be calculated if the volume of the prism is given using the same formula, Volume (V) = base area × height of the prism.

Step-by-step explanation:

Luke is cutting a board to make a trapezoid for a project. What is the angle measure of the piece left over after Cut A?

Answers

The angle measure of the piece is the amount of space left between the vertices

The angle of the piece left over after cut A is 35 degrees

How to determine the angle measure of cut A?

In cut A, we have the following expression

x + 55 = 90

Subtract 55 from both sides to determine the measure of angle left

x = 35

Hence, the angle of the piece left over after cut A is 35 degrees

Answers

Answer:

6 cm and 18 cm.

Step-by-step explanation:

We are given that:

Dimensions of rectangle: x and 3xPerimeter of rectangle: 48 cm

The perimeter of any rectangle is:

L + W + L + W

To determine the dimensions of the rectangle, we need to determine the value of "x". The word "dimensions" are the length and the width of the rectangle. Since the question has not stated the length and width, we can consider the length as x and the width as 3x.

⇒ (x) + (3x) + (x) + (3x)

It is also given that the perimeter of the rectangle is 48 cm. Thus, the formula with the length and the width substituted is equivalent to 48 cm.

⇒ (x) + (3x) + (x) + (3x) = 48 cm

It is required for the expression on the left hand side to be simplified. This can be done by combining like terms.

⇒ x(1 + 3 + 1 + 3) = 48 cm⇒ x(8) = 48 cm

Then, we can divide 8 both sides to isolate the coefficient from "x". Once the coefficient of "x" is isolated, we will obtain the value of "x".

⇒ x(8)/8 = 48/8⇒ x = 6

Finally, substitute the value of "x" into the length and the width. We considered the length to be "x" and the width to be "3x". Therefore,

⇒ Length = x cm = 6 cm⇒ Width = 3x cm = 3(6) cm = 18 cm

Thus, the dimensions of the rectangle are 6 cm and 18 cm.

L=3xB=x

Now

2(L+B)=482(x+3x)=482(4x)=488x=48x=6

B=6

L=3(6)=18

*50 POINTS*

Select each function that has an inverse that is also a function for all values of x.

A. F(x) = 2x^2 + 4x - 3

B. F(x) = 2x + 3

C. F(x) = 3/2(x) + 2

D. F(x) = 2x^3 + 2

E. F(x) = 2x^4 + 3x^2 - x + 1

Answers

Considering the condition for an inverse function, it is found that the functions that also have an inverse for all values of x are given by:

B. F(x) = 2x + 3

C. F(x) = 3/2(x) + 2

D. F(x) = 2x^3 + 2

What is the condition for an inverse function?

A function f(x) has an inverse if it does not have any horizontally aligned points, that is, if f(a) = f(b), then a = b.

Polynomial functions of even degrees have horizontally aligned points, hence functions A and E do not have inverses.

The other polynomial functions, with odd degrees, have inverses.

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How many lines of symmetry does this triangle have? 10 ОА. о OB. 1 O c. 2 OD. 3 O E 4

Answers

Answer: D

Step-by-step explanation: to know symmetry you must draw line from vertices of the figure ad the triangle has 3 vertices so you will draw 3 lines

If the radius of a circle is 2 inches, what is the area of the circle? Use 3.14 for pi

Answers

Answer:

12.56 in squared

Step-by-step explanation:

the formula for area is radius x radius x pi

So you do 2x2x3.14

(I would just do 4x3.14)

And then you get 12.56

While introducing two-digit addition to a second-grade class, the teacher first models adding a problem with Unifix cubes to demonstrate the relationship between tens and ones. The next day, the teacher models adding a problem with base ten blocks and has the students draw and write the problem in their math notebooks. On day three, the teacher moves to a more abstract approach to adding two-digit numbers. What would be the next step for the teacher in this lesson series?

Answers

The next step for the teacher in this lesson series is to give them questions on addition to show the knowledge regarding the addition.

How to illustrate the addition?

From the information, the teacher is introducing two-digit addition to a second-grade class.

In this case, the teacher first models adding a problem with unifix cubes to demonstrate the relationship between tens and ones and also models adding a problem with base ten blocks and has the students draw and write the problem in their math notebooks.

Therefore, it can be deduced that the teacher has taught them the necessary things to know regarding the topic. Hence, it's important to give them questions on addition to show the knowledge regarding the topic.

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Which value of b will cause the quadratic equation x2 bx 5 = 0 to have two real number solutions?

Answers

A value in the interval (-∞,-2√5] ∪[2√5,∞) will give the two real number solutions.

Given quadratic equation is:

[tex]x^{2} +bx+5=0[/tex]

What is a quadratic equation?

Any equation of the form [tex]ax^{2} +bx+c=0[/tex] is called a quadratic equation where a≠0.

To have two real number solutions the discriminant of a quadratic equation should be greater than or equal to zero.

[tex]b^{2} -4(1)(5)\geq 0[/tex]

[tex]b^{2} -20\geq 0[/tex]

[tex]b^{2} -(2\sqrt{5} )^2\geq 0[/tex]

[tex](b+2\sqrt{5} )(b-2\sqrt{5} )\geq 0[/tex]

[tex]b\in(-\infty,-2\sqrt{5} ]\cup [2\sqrt{5} ,\infty)[/tex]

Hence, a value in the interval (-∞,-2√5] ∪[2√5,∞) will give the two real number solutions.

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The probability of winning a prize in the drawing is one in a million. What is the probability if not winning a prize in the drawing?

Answers

Answer: Its 999,999

Step-by-step explanation:

You just take your chance of losing and minus your chance of winning to it.

The box-and-whisker plot below shows the age distribution of people at a family reunion. a box-and-whisker plot is shown. the number line goes from 8 to 72 in increments of 8. the whiskers range from 8 to 71, and the box ranges from 23 to 47. a line divides the box at 38. the stem-and-leaf plot below shows the same data. a stem and leaf plot is shown. the stems from top to bottom are 0, 1, 2, 3, 4, 5, 6, 7. the first column of leaves is 8, 0, 3, 1, 0, 0, 0. the second column of leaves is 9, 1, 3, 6, 1, 2, 1. the third column of leaves is blank, 4, 5, 6, 2, 3, blank. the fourth column of leaves is blank, 5, 6, 8, 4, 6, blank. the fifth column of leaves is blank, blank, 6, 9, 6, blank, blank. the sixth column of leaves is blank, blank, blank, 9, blank, blank, blank. the seventh column of leaves is blank, blank, blank, 9, blank, blank, blank. which of the following best explains why one graph appears skewed and one graph appears symmetrical? the scale of the box-and-whisker plot does not start at zero. the interval of the box-and-whisker plot is too large. the interval of the stem-and-leaf plot is not consistent. the scale of the stem-and-leaf plot is too small for the set of data.

Answers

One graph appears skewed, and one graph appears symmetrical because the interval 2 stem and leaf plots is not consistent, statement third is correct.

What is a histogram?

It is defined as the numerical data representation in the graph with the help of a bar without space. The histogram gives an idea about the data's approximate distribution.

The number line goes from 8 to 72 in incremental of 8, such as:

8, 16, 24, 32, 40, 48, 56, 64, 72

The whiskers range is from 8 to 71 and

Box ranges from 23 to 47.

The line divides the box at 38.

The mid-point of the line plot is at 40 and at first inspection, the stem and leaf plot appears to be accurate. In the stems, however, 5 is omitted entirely, giving the pattern a symmetrical rather than skewed appearance.

Thus, one graph appears skewed, and one graph appears symmetrical because the interval 2 stem and leaf plots is not consistent, statement third is correct.

Learn more about the histogram here:

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help me pleaseeeeeeeeee

Answers

Domain is x range
Range is y range
Close brackets if filled in circle, open bracket if empty (doesn’t count the last number)

Domain: [-4,-3), (0,1)
Range: [-2,5)

Identify the a, b, and c-values for this equation:
y=-2x²+x-5
–
1. a= 2, b= 1, c= -5
2. a= -2, b=1, C = -5
3. a= -2, b = 0, c= -5
3. a= -2, b=1, c= 5

Answers

Answer:

option 2

Step-by-step explanation:

the standard form of a quadratic is

y = ax² + bx + c ( a ≠ 0 )

y = - 2x² + x - 5 ← is in standard form

with a = - 2, b = 1, c = - 5

Does anybody know the answer to this?

Answers

square root to pie is the equation to this answer use the 3.14 method and can I get brainliest :)

Your parents have been paying your car insurance with the understanding that you willget a part-time job and begin to take over the payments.You have recently startedworking at a local grocery store for 20 hours a week.Your part-time pay rate is $9.00per hour.You will not be able to work any overtime

Answers

Answer:

You will earn $180 a week or $25.71 a day.
If your car is $16000 - $20000 then you will pay off the car in 622.32 days or 88 weeks or 1.68767 years.

Step-by-step explanation:

Which shows one way to determine the factors of x3 4x2 5x 20 by grouping? x(x2 4) 5(x2 4) x2(x 4) 5(x 4) x2(x 5) 4(x 5) x(x2 5) 4x(x2 5)

Answers

The equation which shows one way to determine the factors of x3 4x2 5x 20 by grouping is x²(x + 4) + 5(x + 4).

How to find factor of polynomial?

The factor of a polynomial is the terms in linear form, which are, when multiplied together, give the original polynomial equation as a result.

The polynomial equation given in the problem is,

[tex]x^3 +4x^2 +5x+ 20[/tex]

Take out the greatest common factor from the first two term which is x^2 and from the last two terms which is 5 as,

[tex]x^2(x +4)+5(x+ 4)\\[/tex]

Simplify it further,

[tex](x+4)(x^2+5)[/tex]

Thus, the equation which shows one way to determine the factors of x3 4x2 5x 20 by grouping is x²(x + 4) + 5(x + 4).

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Solve for x. Round to the nearest tenth, if necessary.
X=???

Answers

Answer:

160

Step-by-step explanation:

[tex]the \: value \: in \: angle \: e = 180 - (90 + 60) \\ = 180 - 150 = 30degrees \: \\ using \: sinerule \: to \: find \: x \\ \frac{sin(90)}{x} = \frac{sin(30)}{80} \\ making \: x \: subject \: \\ x = \frac{sin90 \times 80}{sin30} \\ x = \frac{1 \times 80}{0.5} \\ x = \frac{80}{0.5} \\ x = 160[/tex]

Answer: x=160

Step-by-step explanation:

What is the area of this i'll give brainliest if its right

Answers

Answer:

Step-by-step explanation:

The way you find the area is 1/2 *base*height
In this situation, it would be 1/2 *10*8

When we solve, a half of 10 is 5, and then we multiply 5*8
5*8=40

Y>-1/2x+2

Y<1/3x-1

Which graph represents the system of inequalities?

Answers

Answer:

the correct answer is option B

Answer: D

Step-by-step explanation:

Can be graphed like a regular equation. Then use the </> symbols to shade.

> above the line

< below the line

Tip: Use Desmos graphing calculator if you can.

Which
group of numbers is listed from least to
greatest?

Answers

Answer:

option 4

using absolute value, the 2 line thing (||) the order would be 2,3,5,7,9 which is least to greatest

What are the solutions to the following system of equations?

2x − y = 6
y = x2 − 9

Answers

Answer:

(3, 0) and (-1, -8)

Step-by-step explanation:

Equation 1

2x - y = 6Rearrange it so that it is equal to 'y'-y = 6 - 2xy = 2x - 6

Substituting the value of y in Equation 2

y = x² - 9⇒ 2x - 6 = x² - 9⇒ x² - 2x - 3 = 0⇒ x² + x - 3x - 3 = 0⇒ x(x + 1) - 3(x + 1) = 0⇒ (x - 3)(x + 1) = 0⇒ x = 3, -1

Taking x = 3

y = 2(3) - 6y = 0Solution 1 = (3, 0)

Taking x = -1

y = 2(-1) - 6y = -2 - 6y = -8Solution 2 = (-1, -8)

Solutions

(3, 0) and (-1, -8)

Rick was given a 15% tip waiting on a table of customers who ordered $60. 00 in food and drinks. How much did Rick earn in tips for waiting on this table?

Answers

Answer:

$9.00

Step-by-step explanation:

Multiply $60.00 by 15% or 0.15 to get 15% of $60.00

HELP! WILL GIVE BRAINLEST!

Answers

Answer:

option (a)

Step-by-step explanation:

0,pie is the answer

Please help I will give brainliest.

Answers

Answer:

Options: 1, 4 & 6

Step-by-step explanation:

Yes:

1. [tex]-1(x-1)^{2} +9=-1(x^{2} -2x+1)+9=-x^{2} +2x-1+9=-x^{2} +2x+8[/tex]

4. [tex]-x^{2} +2x+8[/tex]

6. [tex](x+2)(4-x)=2x-x^{2} +8=-x^{2} +2x+8[/tex]

No:

2. [tex]-(x-9)^{2} +1=-(x^{2} -18x+81)+1=-x^{2} +18x+81+1=-x^{2} +18x+82[/tex]

3. [tex]x^{2} +2x-8[/tex]

5. [tex](x+2)(x-4)=x^{2} -2x-8[/tex]

Hope this helps

I need help NOW !!!!!!!!

Answers

Answer:

[tex]x=1~ \text{and}~ x = -6~ \text{but}~ -6 ~\text{is extraneous.}[/tex]

Step by step explanation:

[tex]2-x = 3-\sqrt{7-3x}\\\\\implies \sqrt{7-3x} = 3-2+x\\\\\implies \sqrt{7-3x} = 1+x\\\\\implies 7-3x = (1+x)^2\\\\\implies 7-3x=1+2x+x^2\\\\\implies x^2+3x+2x+1-7=0\\\\\implies x^2+5x -6 =0\\\\\implies x^2+ 6x-x -6=0\\\\\implies x(x+6)-(x+6)=0\\\\\implies (x-1)(x+6)=0\\\\\implies x =1~~, x = -6[/tex]

[tex]x=-6~ \text{Doesn't satisfy the original equation, so it is an extraneous solution.}[/tex]

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The figures are similar. Find x. Pls help meee

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The figures are similar. Find x.

Pls help meee