What’s the answer help???

Whats The Answer Help???

Answers

Answer 1

Answer:

a = 5 cm, b = 2 cm.

Step-by-step explanation:

[tex]\text{We have:}\\\\A_{PQRS}=45\ cm^2\\\\A_{PQRS}=a(7+b)\\\\A_{PXYS}=10\ cm^2\\\\A_{PXYS}=ab\\\\\text{Therefore we have the system of equations:}\\\\\left\{\begin{array}{ccc}a(7+b)=45&\text{use the distributive property}\\ab=10\end{array}\right\\\left\{\begin{array}{ccc}7a+ab=45&(1)\\ab=10&(2)\end{array}\right\\\\\text{Substitute (2) to (1):}\\7a+10=45\qquad\text{subtract 10 from both sides}\\7a=35\qquad\text{divide both sides by 7}\\a=5\\\text{Put it to (2):}\\5b=10\qquad\text{divide both sides by 5}\\b=2[/tex]


Related Questions

You operate the cash register at diner. A customer gives you $20 bill to pay for his check, which totals$12.19. How much change should you give back?

Answers

Answer:

7.81 dollars

Step-by-step explanation:

20 which was given to

take away the cost of the bill of 12.19

which will give you how much change you will need to give back

What are the solutions to the equation 4x2+3x=24-x

Answers

Answer:

x=2                x=-3

Step-by-step explanation:

4x2+3x=24-x

Subtract 24 from each side

4x^2 +3x -24 = 24-24 -x

4x^2 +3x -24 = -x

Add x to each side

4x^2 +3x+x -24 = -x+x

4x^2 +4x -24 = 0

Factor out a 4

4(x^2 +x -6) = 0

Divide by 4

x^2 +x -6 =0

Factor

What 2 numbers multiply to -6 and add to 1

-2*3 = -6

-2+3 =1

(x-2) (x+3) =0

Using the zero product property

x-2 =0            x+3 =0

x-2+2=0+2    x+3-3=0-3

x=2                x=-3

Answer:x=-3 , x = 2

Step-by-step explanation:

First move the expression ( 24-x) to the left.

This gives us 4x^2+3x+24-x.

Collect the like terms which gives us 4x^2+4x+24

4x^2+4x-24 = 0.  Divide both sides by 4.

x^2 + x-6 = 0

Factorise the expression so you get (x+3)(x-2)=0

Solve the equations x+3 = 0 and x-2=0

The final solutions are x=-3 and x=2.

what is the greatest common factor of the following monomials: 12g^5h^4 g^5h^2

Answers

Answer:

g^5h^2

Step-by-step explanation:

12g^5h^4, g^5h^2

This is one way of doing it. Break down every number and every variable into a product of the simplest factors. Then see how many of each factor appear in both monomials.

12g^5h^4 = 2 * 2 * 3 * g * g * g * g * g * h * h * h * h

g^5h^2 = g * g * g * g * g * h * h

So far you see every single prime factor of each monomial.

Now I will mark the ones that are present in both. Those are the common factors.

12g^5h^4 = 2 * 2 * 3 * g * g * g * g * g * h * h * h * h

g^5h^2 = g * g * g * g * g * h * h

The greatest common factor is the product of all the factors that appear in both monomials.

GCF = g * g * g * g * g * h * h = g^5h^2

Transversal t cuts parallel lines r and s. Which angles must be congruent to 2?

Answers

Answer:

A.) ∠3, ∠6, and∠7

If you have a protractor, that would help you alot :) but I hope this help you!

Answer:

A. ∠3, ∠6 and ∠7.

Step-by-step explanation:

Given,

r ║ s

Also, t is the common transversal of parallel lines r and s,

By the given diagram,

∠2 and ∠3 are vertical angles,

By vertically opposite angle theorem,

∠2 ≅ ∠3,

∠2 and ∠6 are corresponding angle,

By the corresponding angle theorem,

∠2 ≅ ∠6,

∠2 and ∠7 are alternate exterior angles,

By the alternate exterior angle theorem,

∠2 ≅ ∠7

Hence, Option 'A' is correct.

which of the numbers below are whole numbers A 0.328 B.678.79 C.159113 D.3809 E.757 F.0​

Answers

Answer:

F

Step-by-step explanation:

F

zero

Anytime you have zero as a possible answer, you have to consider it carefully. Part of the whole number system is 0. They go up from there. No fraction is a whole number. No decimal is a whole number except those that are equal to  a whole number.

The rest are all decimals so they are not whole numbers. Note I just noticed that the other numbers have periods after the choice. There are other whole numbers there if that is the case.

C D E and F are all whole numbers if that is a period after their choice letters.

Can someone please help me out here ?

Answers

2 2 3 5 7 7

3+5/2 = 4

The median is 4
Hope this helps!

Answer:

4

Step-by-step explanation:

The median is the middle, since the amount of data is an even number we need to add up the third number and fourth number. These are 3 and 5 respectively. Adding these up gives up 8. Dividing this by 2 is 4.

Write the expression 3x24 + 4x12 + 7 in quadratic form.

Answers

Answer:

3 m^2 + 4m +7

Step-by-step explanation:

3x^24 + 4x^12 + 7

Let  m =x^12

m^2 = x^12 ^2 = x^24

Substitute this into the first equation

3 m^2 + 4m +7

Consider the two exponential equations shown. Identify the attributes for each equation to complete the table.​

Answers

Answer:

[tex] y = 2 5 0 ( 0 . 8 9 ) ^ x [/tex]

Initial value: 250

Decay

Decay rate: 11%

[tex] y = 4 0 ( 1.11 ) ^ x [/tex]

Initial value: 40

Growth

Growth rate: 11%

Step-by-step explanation:

The function we have on the left of the table is:

[tex] y = 2 5 0 ( 0 . 8 9 ) ^ x [/tex]

Initial value (when x = 0): [tex] y = 2 5 0 ( 0 . 8 9 ) ^ 0 [/tex]

y = 250 (initial value)

Growth or Decay: 0.89 < 1 so decay

Decay rate: (1 - 0.89) * 100 = 11%

Function on right side:

[tex] y = 4 0 ( 1.11 ) ^ x [/tex]

Initial value (when x = 0): [tex] y = 4 0 ( 1 . 1 1 ) ^ 0 [/tex]

y = 40 (initial value)

Growth or decay: 1.11 > 1 so growth

Growth rate: (1.11 - 1) * 100 = 11%

i took the test 100%

Determine the height of each triangle. Round to the nearest foot.
a. 7 ft
c. 8 ft
b. 5 ft
d. 4ft

Answers

The answer would be D it depends what size triangle you draw

Write an equation in point-slope form for the line through the given point that has the given slope (-2,-7);m=-3/2

Answers

For this case we have that the point-slope equation of a line is given by:

[tex](y-y_ {0}) = m (x-x_ {0})[/tex]

Where:

m: It's the slope

[tex](x_ {0}, y_ {0}):[/tex] It is a point

We have as data that:

[tex](x_ {0}, y_ {0}): (- 2, -7)\\m = - \frac {3} {2}[/tex]

We replace:

[tex](y - (- 7)) = - \frac {3} {2} (x - (- 2))\\(y + 7) = - \frac {3} {2} (x + 2)[/tex]

Answer:[tex](y + 7) = - \frac {3} {2} (x + 2)[/tex]

find the difference. 60 degrees-30 degrees, 50'-40', 40"-50"

Answers

Answer:

60 degrees-30 = 90

50'-40'= 10

40"-50"= 10

Please mark brainliest and have a great day!

What is the solution to the equation

Answers

Answer:

x = -13

Step-by-step explanation:

Distribute:

8 - 6x + 10x - 15 = 20 - 5x

Combine like terms:

4x - 7 = 20 - 5x

Isolate Variable

-x = 13

-1(-x) = -1(13)

x = -13

Answer: [tex]x=3[/tex]

Step-by-step explanation:

You need to apply Distributive property on the left side of the equation:

[tex]2(4-3x)+5(2x-3)=20-5x\\\\8-6x+10x-15=20-5x[/tex]

Now you must add the like terms on the left side of the equation:

[tex]-7+4x=20-5x[/tex]

Add [tex]5x[/tex] to both sides:

[tex]-7+4x+5x=20-5x+5x\\\\-7+9x=20[/tex]

Add 7 to boht sides of the equation:

[tex]-7+9x+7=20+7\\\\9x=27[/tex]

And finally, divide both sides by 9:

[tex]\frac{9x}{9}=\frac{27}{9}\\\\x=3[/tex]

Find the area of an equilateral triangle (regular 3-gon) with the given measurement.

4-inch side

A = sq. in.

Answers

Using Heron's formula where s = 9 ...... and a = b = c = the side lengths .....we have......

A = √[s(s -a)^3] = √[4*3^3] = √[4*27] = √[4*9*3] = √[36*3) = 9√3 sq. in.

what is the square root of 4/9?
please explain the steps.
Thank you!​

Answers

Answer:

I just know it is 0.222222222222

Step-by-step explanation:

Answer:

± [tex]\frac{2}{3}[/tex]

Step-by-step explanation:

Given

[tex]\sqrt{\frac{4}{9} }[/tex]

= [tex]\frac{\sqrt{4} }{\sqrt{9} }[/tex] = ± [tex]\frac{2}{3}[/tex]

The equation of a linear function in point-slope form is y – y1 = m(x – x1). Harold correctly wrote the equation y = 3(x – 7) using a point and the slope. Which point did Harold use? When Harold wrote his equation, the point he used was (7, 3). When Harold wrote his equation, the point he used was (0, 7). When Harold wrote his equation, the point he used was (7, 0). When Harold wrote his equation, the point he used was (3, 7).

Answers

For this case we must find the point that Harold used to arrive at the following equation:

[tex]y = 3 (x-7)[/tex]

Starting from the fact that the equation of the point-slope form of a line is given by:

[tex](y-y_ {1}) = m (x-x_ {1})[/tex]

If we compare the standard equation with Harold's, we see that the slope of the line is [tex]m = 3.[/tex]

In addition, it is observed that [tex]x_ {1} = 7[/tex]and [tex]y_ {1} = 0.[/tex]

Then, the correct option is: Harold used the point (7,0)

ANswer:

When Harold wrote his equation, the point was used (7,0).

If the variance of the ages of the people who attended a rock concert is 38, what is the standard deviation of the ages? Round your answer to two decimal places

Answers

Answer:

The standard deviation of the age is 6.16

Step-by-step explanation:

* Lets talk about the variance and the standard deviation

- The variance is the measure of how much values in a set of data are

 likely to differ from the mean value of the same data

- The steps to find the variance are:

1- Find the mean of the data  

2- Subtract the mean from each value and square the answer

3- Add all of these squared answer and divide the sum by the number

  of the values

- The answer of the step 3 is The variance (σ²)

- The standard deviation (σ) is the square root of the variance

* Now lets solve the problem

∵ The variance of the ages of the people who attended a rock

  concert is 38

∴ σ² = 38

∵ The standard deviation is the square root of the variance

∴ σ = √38 = 6.16

* The standard deviation of the age is 6.16

Answer:

[tex]\sigma=6.16[/tex]

Step-by-step explanation:

By definition, the variance V of a population is defined as:

[tex]V = \sigma^2[/tex]

Where [tex]\sigma[/tex] is the standard deviation

We know that [tex]V = 38[/tex], then we can solve the equation for the standard deviation [tex]\sigma[/tex]

[tex]38 = \sigma^2[/tex]

[tex]\sigma^2=38[/tex]

[tex]\sigma=\sqrt{38}[/tex]

[tex]\sigma=6.16[/tex]

Finally  the standard deviation is: [tex]\sigma=6.16[/tex]

Find the LCM of each pair of numbers 8 and 9

Answers

Answer:

The LCM of 8 and 9 is 72.

Step-by-step explanation:

Please mark brainliest and have a great day!

Evaluate a + 7b if a = 14 and b =12

Answers

Plug 14 in for a and 12 in for b like so...

14 + 7(12)

14 + 84

98

Hope this helped!

~Just a girl in love with Shawn Mendes

The graph shows the weight of a jar (in grams) when it contains different numbers of pickles. When empty, the jar weighs 20 grams. What is the change in the weight of the jar for each pickle added? What is the slope of the line?
A) 2 grams; The slope is 2.
B) 2 grams; The slope is
1
2
.
C) 4 grams; The slope is 4.
D) 4 grams; The slope is
1
4
.

Answers

Answer: i think C

Step-by-step explanation:

6x^3+(-3x^3y^2) when simplified is

Answers

Answer:

6x^3-3x^3y^2

Step-by-step explanation:

6x^3+\left(-3x^3y^2\right)

6x^3+\left(-3x^3y^2\right)=6x^3-3x^3y^2

=6x^3-3x^3y^2

the answer is 3x^3(2-y^2).

6x^3 + (-3x^3y^2) =

6x^3 - 3x^3y^2 =

3x^3(2-y^2)

the cost of a service call to fix a washing machine can be expressed by the linear function y = 45x + 35, where y represents the total cost and x represents the number of hours it takes to fix the machine. what does the y-intercept represent?

Answers

The y intercept is the price of them coming to the home

The y-intercept is where it crosses the y-axis. That means the x-coordinate is zero there. So this point represents how much it cost before any hours are applied. This is also known as the initial cost.

A point has coordinates (-3,-3). Where is it located in the coordinate plane?

Answers

C quadrant 3 because negative x value and negative y value

please multiply (4x + 7)^2

Answers

Answer:

16x² + 56x + 49

Step-by-step explanation:

First, expand:

(4x + 7)² = (4x + 7)(4x + 7)

Follow the FOIL method. FOIL = First, Outside, Inside, Last.

(4x)(4x) = 16x²

(4x)(7) = 28x

(7)(4x) = 28x

(7)(7) = 49

16x² + 28x + 28x + 49

Combine like terms:

16x² + (28x + 28x) + 49

16x² + (56x) + 49

16x² + 56x + 49 is your answer.

~

4. A golf ball company called Great Drive is designing a new style of golf ball. The company uses rubber
for the core of the ball, and needs to determine what volume of rubber they need to use to fill each golf
ball. Assume the core of the ball is a sphere with a diameter of 1.68 inches. What's the volume of the
core of the ball? Round to the nearest hundredth of a cubic inch.
A. 2.48 in3
B. 2.99 in3
C. 2.21 in3
D. 1.65 in3

Answers

Final answer:

The volume of the core of the golf ball from Great Drive, with a diameter of 1.68 inches, is approximately 2.48 cubic inches. This is calculated using the formula for the volume of a sphere with the radius derived from the given diameter. The correct answer is 2.48 in³, which is option A.

Explanation:

The volume of a sphere is given by the formula V = (4/3) πr3, where π is pi (approximately 3.14159) and r is the sphere's radius. The diameter of the golf ball's core is given as 1.68 inches, so the radius is half of that, which is 0.84 inches. Plugging this into the formula gives us:

V = (4/3) π (0.84 inches)3 = (4/3) π (0.84 inches × 0.84 inches × 0.84 inches)

Doing the math, we find that:

V ≈ (4/3) π (0.592704 inches3) ≈ 2.48 in3

Therefore, the volume of the core of the ball rounded to the nearest hundredth is 2.48 cubic inches.

The correct answer is option A.

How many ounces of trial mix are in a bag that weighs.908 kilograms?

Answers

Answer:

32028.8 ounces

Step-by-step explanation:

We are given that there are 908 kilograms of of trial mix are in a bag and we are to find the number of ounces of the same amout of mix in the bag.

For that, we will use the ratio method.

We know that, 1 kg = 35.274, so:

[tex] \frac { 1 k g }{908kg} =\frac{35.274 oz}{x}[/tex]

[tex]x=32028.8[/tex]

Therefore, there are 32028.8 ounces of mix in the bag.

Final answer:

To find the amount of trail mix in ounces from 0.908 kilograms, convert the weight to grams and then to ounces using the conversion of 1 oz = 28.35 g, resulting in approximately 32.012 ounces of trail mix.

Explanation:

To convert the weight of the trail mix from kilograms to ounces, we need to use the conversion factor: 1 oz is produced by a mass of 28.35 g. First, convert the kilograms to grams by multiplying by 1000, because there are 1000 grams in a kilogram. Then, once we have the weight in grams, we can convert grams to ounces using the provided conversion rate.

Here's the calculation step by step:

Convert kilograms to grams: 0.908 kg × 1000 = 908 grams.

Convert grams to ounces: 908 g ÷ 28.35 g/oz = 32.012 ounces (rounded to three decimal places).

Thus, a bag that weighs 0.908 kilograms contains approximately 32.012 ounces of trail mix.

Solve the inequality and graph its solution: x - 7>-20
A x>-13
-12
6
0
6
12
18
24
30
-30 -24 -18
B. x>-13
-6
0
6
12
18
24
30
-30 -24 -18 -12
cx<-27
6
0
6
12
18
24
30
-3024 -18 -12
X<-27
D.
+
+ +
--3026 -18
1
-12
6
0
6
12
18
24
30

Answers

The inequality x - 7 > -20 is solved by adding 7 to both sides, resulting in x > -13. The graph of this inequality has an open circle at -13 with shading to the right.

To solve the inequality x - 7 > -20, you want to isolate the variable x on one side. You can do this by adding 7 to both sides of the inequality:

x - 7 + 7 > -20 + 7

x > -13

So, the solution to the inequality is x > -13. To graph this solution on a number line, you would draw an open circle at -13 and shade to the right, indicating that x can be any value greater than -13 but not including -13 itself.

Which value is in the domain of f(x)?

Answers

Answer:

4

Step-by-step explanation:

[tex]f(x)=-2x+3, 0<x<=4[/tex]

Answer:

4

Step-by-step explanation:

The domain is the inputs (or the x values)

We start at -6 (but do not include it) and end at +4 (we include it)

-6 < x ≤4

The value that is included is 4

ABC is dilated by a scale factor of 0.5 with the origin as the center of dilation resulting in the image ABC. If a equals (2, 2), b equals (4, 3), and c equals (6, 3), what is the length of BC?

Answers

Answer:

BC should be 1 unit

Step-by-step explanation:

Answer:

1 unit is your answer

Which graph shows a rate of change of 1/2
between -4 and 0 on the x-axis?

Answers

Answer:

Step-by-step explanation:

its the first one in edge

The graph which shows a rate of change of 1/2 is the linear graph shown in the image attached below.

What is the Rate of Change?

Rate of change = change in y / change in x.

The two points between -4 and 0 on the x-axis as shown in the diagram attached are, (-4, 1) and (0, 3). It is also a linear graph.

Rate of change = (3 - 1)/(0 -(-4)) = 2/4 = 1/2

The graph that shows a rate of change is the linear graph attached below.

Learn more about the rate of change on:

https://brainly.com/question/25184007

#SPJ5

What is the value of y?

Answers

The sum of all the angles of a triangle is 180 degrees. To solve for y you can make a formula of the sum of the angles equal to 180 like so...

y + y + 60 = 180

Now you must combine like terms. This means that first numbers with the same variables (y) must be combined...

y + y + 60 = 180

y + y = 2y

2y + 60 = 180

Now bring 60 to the left side by subtracting 60 to both sides (what you do on one side you must do to the other). Since 60 is being added on the left side, subtraction (the opposite of addition) will cancel it out (make it zero) from the left side and bring it over to the right side.

2y + 60 - 60 = 180 - 60

2y + 0 = 120

2y = 120

Next divide 2 to both sides to finish isolating y. Since 2 is being multiplied by y, division (the opposite of multiplication) will cancel 2 out (in this case it will make 2 one) from the left side and bring it over to the right side.

2y / 2 = 120 / 2

y = 60

C. 60

Hope this helped!

~Just a girl in love with Shawn Mendes

60

it’s a equilateral triangle
Other Questions
which of these actions is most similar to the covenant Abraham formed with God? what is the measure of at in oo below Rewrite the radical expression as an expression with rational exponents.fifth root of x to the power of 7 Which of the following symbols make(s) the following mathematical statement true? Select all that apply. 49 ___ 3 + 32 23 Which words from the excerpt best convey the mood? In Griswold v. Connecticut, on what did Justice Goldberg base his concurring opinion? the protection granted by the Constitution the intention of the writers of the Constitution the list of rights in the first eight amendments the human rights safe from government intervention assuming that this is a healthy eco system, which of following organisms would you expect to have the smallest population?A. Acorn B. Cougar C. DeerD. Mouse According to the narrator, what is the guardian angel picture outside herbedroom a symbol for?A. her admiration for sister mary josephB. the tense relationship with her parents C. her disdain for larry reyesD. the importance of her puerto rican roots What drew the United States into World War I? Germany's invasion of France and the withdrawal of Russia from the conflict President Woodrow Wilson's strong desire to push the United States to war Germany's invasion of Belgium, the sinking of the Lusitania, and the Zimmermann note the rapid destruction of France's military, Britain's withdrawal from the conflict, and a Mexican alliance with Germany Select the correct text in the passage. Which sentence in the passage indicates that the author has a negative point of view about the violin? My parents gave me a violin for my ninth birthday. From what I can remember, there was no reason for them to give me one. I never asked them for a violin. After seeing the face that I made when I saw the violin for the first time, my dad said, If you practice enough, you might become a famous violinist. To this day, I cannot imagine why a person would say that to a nine-year-old. I did not want to be a famous violinist. Violins were for rich, snobby peopleI just wanted to be in a rock-and-roll band. I told my dad that I wanted to be a rock star, and he just shook his head. I assumed, incorrectly, that I was done with the violin. The next day my dad took me to a music store. As he looked at the CDs, I wandered over to the magazines. I was looking through a magazine when I felt somebody tap on my shoulder. It was my father. Before I could say anything, he said, I just bought this, and you should check it out! I looked at the CD he thrust toward me. It was an album titled Cosmic Messenger by Jean-Luc Ponty. I thought to myself, What am I supposed to do with this?" My dad must have noticed the look on my face because he quickly responded by saying, This guy plays the violin, just like you. Only he plays a violin that he runs through a bunch of machines, which make it sound like a guitar. I guess you could say that hes a rock-and-roll violinist. A sample of a material has 200 radioactive particles in it today. Your grandfather measured 400 radioactive particles in it 60 years ago. How many radioactive particles will the sample have 60 years from today? Which is one advantage that newspapers generally have over television? They cover news stories in greater detail. They are available everywhere in the country. They cost less for readers than other media. They reach people with news more quickly. How many grams of dry NH4Cl need to be added to 1.90 L of a 0.500 M solution of ammonia, NH3, to prepare a buffer solution that has a pH of 8.72? Kb for ammonia is 1.8105. Shawn is looking for one-on-one attention from a fitness professional to advance her workouts. Which of the following training principles best reflects her needs? Frequency Tedium Specificity Overload How many kilograms are equal to 5000 grams Malcolm is trying a very low-carbohydrate diet. He would like to keep the amount of carbs consumed in grams between the levels shown in the following compound inequality:50 < 2x + 10 and 2x + 10 < 110Solve for x in this inequality, and explain what the answer represents. 1. x < 20 and x > 50; Malcolm needs to consume less than 20 grams of carbohydrates or more than 50 grams of carbohydrates. 2. x > 20 and x < 50; Malcolm needs to consume more than 20 grams of carbohydrates, but less than 50 grams of carbohydrates. 3. x > 30 and x < 60; Malcolm needs to consume more than 30 grams of carbohydrates, but less than 60 grams of carbohydrates. 3. x < 30 and x > 60; Malcolm needs to consume less than 30 grams of carbohydrates or more than 60 grams of carbohydrates. ABCD is a parallelogram. What are the measures of angles B and C? b=(3n+20) D= (6n-25) Find the lateral area for the cylinder with the given measurementr= 4, h= 520 Pi square units40 Pi square units80 Pi square units In a class of 32 students, the mean height of the 14 boys is 1.56 metres. The mean height of all 32 students is 1.515 metres. Work out the mean height of the girls. 70 Points!! Question! Steam Workshop Downloader