help with question 47 please

Help With Question 47 Please

Answers

Answer 1
[tex]\bf (x-y)^2\implies x^2-2xy+y^2\qquad \begin{cases} x^2=25\\ x=\sqrt{25}\\ x=5\\ -----\\ y^2=9\\ y=\sqrt{9}\\ y=3 \end{cases} \\\\\\ (25)-2(5)(3)+(9)\implies 25-30+9[/tex]

Related Questions

A player's goal was to score at least 150 points this season. So far, she has scored 123 points. If there is one game left, how many points must she score to reach her goal?



A) Write an inequality that represents this word problem.

Answers

123+G[tex] \geq [/tex]150

The inequality that represents this word problem will be 150 - 123 = 27.

From the information given, the player's goal was to score at least 150 points this season but the player already has scored 123 points.

Therefore, since there is one game left, the number of points that must be scored to reach her goal will be:

= 150 - 123 = 27

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S is between T and V. R is between S and T. T is between R and Q. QV=18, QT=6, and TR=RS=SV. Find RS , QS , TS , and TV.

Answers


                                             4                     4               4
-----Q-----------------------T----------------R---------------S---------------V
      <----------6----------->
      <-----------------------------------------18--------------------------------->


QT = 6 (given)
QV = 18 (given)
TR=RS=SV (given)

Then TV = 18-6 = 12 and since TR=RS=SV , then each segment = 12/3 =4

RS = 4
QS = 14
TS =  8
and TV. = 12

A line can have as many points as possible, and multiple lines can have similar points. The values of RS, QS, TS and TV are:

[tex]RS = 4\\QS =14\\TV = 12\\TS = 8[/tex]  

S is a point between lines T and V means:

[tex]TV = TS + SV[/tex]

R is a point between lines S and T means:

[tex]TS = RS + TR[/tex]

T is a point between lines R and Q means

[tex]RQ = TR + QT[/tex]

Given that:

[tex]QT = 6\\QV = 18[/tex]

This means that Q is a point between lines QT and QV. So:

[tex]TV = QV - QT[/tex]

[tex]TV = 18- 6[/tex]

[tex]TV = 12[/tex]

[tex]TR=RS=SV[/tex] means that:

[tex]TV = TR+RS+SV[/tex]

Because [tex]TR=RS=SV[/tex], the equation becomes:

[tex]TV = TR+TR+TR[/tex]

[tex]TV = 3TR[/tex]

Substitute 12 for TV

[tex]12 = 3TR[/tex]

Divide both sides by 3

[tex]4 = TR[/tex]

[tex]TR =4[/tex]

Hence:

[tex]TR=RS=SV=4[/tex]

[tex]TS = RS + TR[/tex] gives

[tex]TS = 4 + 4[/tex]

[tex]TS = 8[/tex]

Next, we calculate the measure of QS from lines QV and SV

Point S is common between QS and SV. This means:

[tex]QV = QS + SV[/tex]

Make QS the subject

[tex]QS =QV -SV[/tex]

[tex]QS =18-4[/tex]

[tex]QS =14[/tex]

Hence, the values of RS, QS, TS and TV are:

[tex]RS = 4\\QS =14\\TV = 12\\TS = 8[/tex]  

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a) As a student, you are able to earn extra money by assisting your neighbors with odd jobs. If you charged $10.25 an hour for your assistance, about how many hours would you need to work to earn $8,425? Show your work.

Answers

ABout 821.95 hours. 8,425 divided by 10.25 is 821.95

Answer:

About 821.95 hours. 8,425 divided by 10.25 is 821.95

821.95 hours

8,425

10.25

_____ = 821.95

Step-by-step explanation:

edge2021

Work out the equation of the line which has a gradient of 2 and passes through the point (1,4)

Answers

Answer:

The equation would be y = 2x + 2

Step-by-step explanation:

We know that the equation of a line can be represented as:

(y - y1) = m ( x - x1)

where (x1, y1) is a point that belongs to the line and m is the gradient.

For this particular problem we would have (x1,y1) = (1,4) and m = 2.

If we substitute this data in the formula we  get:

(y - y1) = m (x - x1)

y - 4 = 2(x - 1)

y - 4 = 2x - 2

y = 2x - 2 + 4

y = 2x + 2

Therefore, the equation would be y = 2x + 2

The equation of the line which has a gradient of 2 and passes through the point (1,4) is:

y = 2x + 2

What is gradient

Gradient also known as slope is the defined as

Gradient (m) = change in y coordinate / change in x coordinate

The equation of a line passing through a given point is given by the following equation:

y – y₁ = m(x – x₁)

How to determine the equation of the line passing through point (1,4)x coordinate (x₁) = 1y coordinate (y₁) = 4Gradient (m) = 2Equation =?

y – y₁ = m(x – x₁)

y – 4 = 2(x – 1)

Clear bracket

y – 4 = 2x – 2

Make y the subject by adding 4 to both side

y – 4 + 4 = 2x – 2 + 4

y = 2x + 2

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A rectangular box is to have a square base and a volume of 80 ft3. the material for the base costs 45¢/ft2, the material for the sides costs 10¢/ft2, and the material for the top costs 28¢/ft2. letting x denote the length of one side of the base, find a function in the variable x giving the cost (in dollars) of constructing the box.

Answers

The volume of a rectangular box is equal to the area of its base times the vertical height. Thus,

V = Ah = 80

Since the base is a square with side x, then the area is equal to x². Hence, we can express h in terms of x.

80 = x²h
h = 80/x²

Now, each lateral side of the rectangular box is in the shape of a rectangle with a length of h and a width of w. Hence, the equation for the total cost would be:

Total Cost = Cost per area of lower base + Cost per area of upper base + 4(Cost per area of lateral side)
Total Cost = 0.45x² + 0.28x² + 4(0.10h*x)
Total Cost = 0.73x² + 0.4hx
Since h = 80/x²,
Total Cost = 0.73x² + 0.4(80/x²)(x)
Total Cost ($) = 0.73x² +32/x

Zach is 23 years old. Zach's age is 3 years older than twice Maya's age. Let m represent Maya's age.

Which equation can be used to solve for Maya's age?



23 = 2m + 3

23 = 3m + 2

23 = m + 3

23 = 2m

Answers

Start your reasoning from Maya's age m.
To get to Zach's age, you have to double it and add 3.

So 2m + 3 = 23. That's the first answer.

Answer:

The correct option is A) [tex]23=2m+3[/tex].

Step-by-step explanation:

Consider the provided information.

Zach is 23 years old. Zach's age is 3 years older than twice Maya's age.

Let m represent Maya's age.

Twice of Maya's age can be written as:

[tex]2m[/tex]

3 years older than twice Maya's age can be written as:

[tex]2m+3[/tex]

It is given that Zach is 23 years old and Zach's age is 3 years older than twice Maya's age.

Thus, the above expression equal to 23.

[tex]23=2m+3[/tex]

Hence, the correct option is A) [tex]23=2m+3[/tex].

Arrange the complex numbers in order according to the quadrant in which they appear, starting with the first quadrant.
1. 3 − 4i
2. -1 − 3i
3. 4 + i
4. -2 + 2i

Answers

The quadrants and the given numbers are shown in the figure below.

Answer:
The order of the complex numbers, numbered from the first quadrant are
4 + i
-2 + 2i
-1 - 3i
3 - 4i

Answer:

The previous answer was correct

Step-by-step explanation:

In Trevor's biology class, the students tested for bacteria on a kitchen sponge. They found that there were approximately 17,000,000 bacterial colonies on a single sponge. Express their findings in scientific notation.

17 × 106
1.7 × 106
1.7 × 107
0.17 × 108

Answers

that would be 1.7 * 10^7


Choice C

Answer:

1.7 × 10 7

Step by step explanation:

Let g(x) be the reflection of f(x) = x 2 + 3 in the x-axis. What is the function rule for g(x)?

A.
g(x) = -x^ 2 - 3
B.
g(x) = -x ^2 + 3
C.
g(x) = x ^2 - 3
D.
g(x) = x ^2 + 3

please show your work

Answers

refelction meand g(x) would equal -(fx)

 so the answer would be C g(x) = -x^2 - 3

Destiny combines 6.42 liters of red paint with 6.87 liters of blue paint to make purple paint. she pours the paint equally into 3 containers, and has 2.64 liters of paint left over. how many liters of paint are in each container?

Answers

((6.42 + 6.87) - 2.64) / 3 =
(13.29 - 2.64) / 3 =
10.65/3 = 
3.55 liters per container <=

Quantity of paint in each container will be 3.55 liters

What is Division method?

Division method is used to distributing a group of things into equal parts. Division is just opposite of multiplications.

For example, dividing 20 by 2 means splitting 20 into 2 equal groups of 10.

Given that;

Quantity of red paint = 6.42 liters

Quantity of blue paint = 6.87 liters

And, she pours the paint equally into 3 containers, and has 2.64 liters of paint left over.

Now,

Total quantity of paint = 6.42 + 6.87

                                  = 13.29 liters

Thus, The quantity in each container = 13.29 - 2.64 / 3

                                                         = 10.65 / 3

                                                         = 3.55 liters.

Therefore, Quantity of paint in each container will be 3.55 liters

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the development of cars has pros and cons. the car has allowed for better transportation but it is also responsible for a great deal of pollution. which activity can help reduce through pollution through the use of new technology?

A)increasing taxes on cars that pollute the most

B)making an app that allows people to share rides

C)persuading people to use existing public transportation

D)building cars that can better withstand collisions

Answers

The answer is B I think. sorry keyboard malfunction

In which case is it legal to drive through a crosswalk?

A. When pedestrians are crossing but you have a green light
B. When all pedestrians are in lanes other than yours
C. When you can safely avoid pedestrians in your lane
D. None of the above

Answers

pedestrians have right of way no matter how rude they are

A. is wrong because pedestrians have right of way

B. is wrong because you could be turning right but they are in the far away, you are not allowed to turn because pedestrians have right of way

C. no because pedestrians have right of way

D is the answer

You increase the size of a computer screen display by 20%. Then you decrease it by 20%. What is the size of the computer screen display now?

Answers

96

U almost always use 100% to start theses q off

increasing it by 20% would make it 120
20% of 120 is 24. 
subtract 24 from 120

If x+z=15x+z=15 and w+y=10w+y=10, what is the value of (3w+3y)(2x+2z)(3w+3y)(2x+2z) ?

Answers

Answer:

The value of [tex]\((3w+3y)(2x+2z)\)[/tex] squared is [tex]\(810,000\).[/tex]

Explanation:

To find the value of [tex]\((3w+3y)(2x+2z)\)[/tex], we can first simplify each factor:

[tex]\((3w+3y) = 3(w+y)\)[/tex]

[tex]\((2x+2z) = 2(x+z)\)[/tex]

Given that [tex]\(w+y = 10\) and \(x+z = 15\)[/tex] , we can substitute these values into the expressions:

[tex]\((3w+3y) = 3(10) = 30\)[/tex]

[tex]\((2x+2z) = 2(15) = 30\)[/tex]

Now, we multiply these two simplified expressions together:

[tex]\((3w+3y)(2x+2z) = 30 \times 30 = 900\)[/tex]

So, the value of [tex]\((3w+3y)(2x+2z)\) is \(900\).[/tex]

To find the value of [tex]\((3w+3y)(2x+2z)\)[/tex] squared:

[tex]\((3w+3y)(2x+2z)^2 = (900)^2 = 810,000\)[/tex]

Therefore, the value of [tex]\((3w+3y)(2x+2z)\)[/tex] squared is [tex]\(810,000\).[/tex]

What is -3 = -15 + a

Answers

hello : 
 -3 = -15 + a
add : 15
-3 +15 = -15 +15 +a
 12 = a 
 a = 12

This problem has me stock is their anyone willing to helpp

Answers

4976 million acres

15% is federally owned

 so 85% is not

multiply 4976 by 85%


4976 * 0.85 = 4229.60 million acres are not federally owned

Which is the line shown in the figure?

Answers

xz because the line connects them together.

The answer is Line XZ. The line goes through them.



Explain how knowing 5 divided by 8 = 0.625 helps you write the decimal for 4 5/8

Answers

If 5/8 equals 0.625, then the numbers after the decimal point for 4 5/8 will also be 0.625. 
You only need to add 4 because it's a whole number, making the end result 4.625.

5+4g+8=1 (g=-3;g =-1; g =2)

Answers

when g equals- 3 answer is 1

you are baking muffins for your class. there are 17 total students in your class and you have baked 5 muffins. write and solve an equation to find the additional number x of muffins you need to bake in order to have 2 muffins for each student. write your equation so that the units on each side of the equation are muffins per student

Answers

For your first answer 2=x+5/17 your second answer is 29. This is because "x" is the number that you need to bake which is 29. Therefore, 31/17=2

Answer:

Additional muffins required, x = 29

The equation so that the units on each side of the equation are muffins per student

                    [tex]\frac{5+x}{17}=2[/tex]

Step-by-step explanation:

Let the additional number x of muffins you need to bake in order to have 2 muffins for each student.

We have total number of students = 17

Number of muffins already baked = 5

So total number of muffins made = Number of muffins already baked + Additional muffins to be made

Total number of muffins made = 5 + x

We know that each student need to get 2 muffins

Total muffins needed = 17 x 2

Equating both

                   5 + x = 17 x 2

                        x = 34 - 5 = 29

Additional muffins required, x = 29

                 [tex]\frac{5+x}{17}=2[/tex]

This is the equation so that the units on each side of the equation are muffins per student

WILL GIVE 20 POINTS
Write the expression 44(4–7)(4) using a single exponent.

A) 4^–28

B) 4^–4

C) 4^–3

D) 4^–2

Answers

Answer:

D) 4^-2

Step-by-step explanation:

Given: 4^4*4^-7*4

If the base is the same, we can add the powers.

a^m * a^n = a^(m + n)

4^4*4^-7*4 = 4^(4 - 7 + 1)

= 4^(5 - 7)

= 4^-2

Answer: D) 4^-2

Hope this will helpful.

Thank you.

Last week they share of stock gained a total of 1.64 points express this game as a mixed number in simplest form

Answers

(164/100)
=(1/16/25)
=41/25

Which parking lot is less expensive if Mr. Lujan returns after 2 days and 3 hours?

Answers

What are the choices?

The following eight values represent the sale amounts over a one hour period: $10 $5 $60 $20 $15 $20 $9 $2. What is the median sales value over this period?
Select one:
a. $12.50
b. $17.63
c. $20.00
d. $31.00

Answers

The answer is C. $12.50

You're supposed to arange the numbers in order from least to greatest then you mark out the highest and the lowest number. You keep this up until either there is one or two numbers left. In this case, there are two numbers as the median. Add $10 and $15 then you divide it by two.

A rectangleâs length is 7 inches greater than its width. if the perimeter of the rectangle is 110 inches, find its length and width.

Answers

the length would be 16, the width would be 9

write the sentence as a proportion
5 is to 7 as 15 is to X
9 is to 3 as X is to 12
g is to 9 as 16 is to 12
6 is to 18 as y is to 3

Answers

"is to" can be another word for ":" or a proportion.

5:7 as 15:21 (x = 21)

9:3 as 36:12 (x = 36)

12:9 as 16:12 (g = 12)

6:18 as 1:3 (y = 1)


Form the intersection for the following sets.

R = {10, 15, 20}
S = {20, 25}
R ∩ S =

A.{ }
B.{10, 15, 25}
C.{20}
D.{10, 15, 20, 25}

Answers

The intersection is where the sets overlap. picture a Venn diagram (two overlapping circles). The intersection is only the overlap part. So for this problem that would be C. {20}



Evaluate y5 for y = 1.
1
5
15

Answers

IF you mean y^5, then your answer will be 1
if you mean y(5), then your answer will be 5

hope this helps

you have ten boxes of ten muffins each and each muffin has ten blueberries, Use exponent to write an expression for the total number of blue berries

Answers

10^3

10×10×10

10 boxes×10 muffins×10 blueberries

explain how you can use a straightedge and a protractor to show that each angle you formed by a bisector is one-half the original angle

Answers

You can do that by simply measuring the main angle and then measuring each of the two angles. If you bisected the angle correctly, you will find that each of the two angles is equal to half the original.

You can measure the angle by following these steps:
1- Place the straightedge on the base of the angle.
2- Slide the protractor over it until the vertex of the angle is at the zero of the protractor.
3- Measure the angle.
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