Mathematics High School

Help me with this please !!!! I will give you 50 POINTS!!!!!!!!!!!!!!!!!!!!
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Answers

Answer 1

Answer:

Sysem A has 2 real solutions (both the positive and negative form of a number can be squared to get a positive square)

System B has 0 real solutions (you can't square root a negative number and get a real number)

System C has 2 real solutions (same explanation as System A)

Related Questions

A container can hold 25 pounds of beans. Right now there are 12.5 pound of beans. What is the percentage of beans in the container?

Answers

50% because 12.5lbs is half of 25lbs

Answer:

Step-by-step explanation:

if the container holds 25 lBS, that represents 100%

if there are 12.5 lbs now in the container, that represents 50%

For what value of 'k will (x - 1) be a factor of 4x^3 +kx^2 - 7x - 10?

Answers

Answer:

k = 13

Step-by-step explanation:

If (x-1) is a factor, then f(1) = 0

4*1 + k*1 - 7*1 - 10 = 0

4 + k - 7 - 10 = 0

k - 13 = 0

k = 13

A painter is painting a rectangular wall that measures 23.6 ft by 19.2 ft. Each gallon can of paint covers 200 square feet. What are the fewest gallons needed to paint the wall?

Answers

Answer:

3 gallons

Step-by-step explanation:

Length of the rectangular wall = 23.6 feet

Width of the rectangular wall = 19.2 feet

Surface area of the wall = 23.6 × 19.2

= 453.12 square feet

∵ 200 square feet of the wall is covered by the amount of paint = 1 gallon

∴ 1 square feet of the wall will be covered by the amount of paint = [tex]\frac{1}{200}[/tex] gallons

∴ 453.12 square feet will require the amount of paint = [tex]\frac{453.12}{200}[/tex]

= 2.2656 gallons

Therefore, minimum 3 gallons will be required to paint the wall.

A tree is growing at a constant rate. It is recorded that at the 7th year since it was planted it was at a height of 25 feet. It was recorded again at the 10th year since it was planted and it was at a height of 31 feet. How much does the tree grow every year?

Answers

9514 1404 393

Answer:

2 feet per year

Step-by-step explanation:

In the 3 years between the 7th and 10th, the tree grew 6 feet from 25 ft to 31 ft. The rate of growth is ...

(6 ft)/(3 yr) = (6/3) ft/yr = 2 ft/yr

Beyonce is solving a system of equations: 2x – 3y = -2
4x + y = 24

She decides to use the elimination method to find the solution. She multiplies the second equation by 3 and adds it to the first equation to find 14x = 70, showing her that x = 5. Beyonce finds that y = 4.

Step 3: 4x + y = 24

4(5) + y = 24

20 + y = 24
-20 -20

y = 4

Step 1: 3(4x + y = 24) → 12x + 3y = 72
Step 2: 2x – 3y = -2
Solution: (5, 4)

+ 12x + 3y = 72
14x = 70

→ x = 5

Thinking about this process, Beyonce says out loud, “There are lots of ways I could go about solving this problem. I could do the method above or I could multiply the first equation by -2 and add the second.

Step 3: 4x + y = 24

4x + 4 = 24
-4 -4

4x = 20

x = 5

Step 1: -2(2x – 3y = -2) → -4x + 6y = 4
Solution: (5, 4)

Step 2: -4x + 6y = 4
+ 4x + y = 24
7y= 28

→ y = 4

“I seem to find that there is only one solution to the two equations, but I wonder if I will get the same solution if I use a different method?”

Explain how you know that a system of equations has no solution.

Answers

Answer:

Step-by-step explanation:

A system of equations has no solutions if you end up with a contradiction. For example, the system of two equations

y = 2x + 4

y = 2x

If you subtract the second equation from the first, you get

0 = 4

an obvious contradiction. If you were to graph the equations, you would see that the lines are parallel. They never intersect, so there is no point that satisfies both equations.

How does rewriting the mixed numbers as whole numbers and fractions make it easier to multiply?

Answers

Answer:

Step-by-step explanation:

What is the equation of the linear function represented by the table?

y=-X+9
y=-x+ 13
Y = X+ 13
Y = X+9

Answers

Answer:

Step-by-step explanation:

I am sorry but please give detailed question where is the table

Which of the following statements are true of the graphed system of equations? Check all that apply.
The system has infinitely many solutions.
A solution to the system is (–1, –2).
A solution to the system is (0, –1).
One of the equations is y = x –1.
One of the equations is 3x + y = –5.

Answers

Answer:

A solution to the system is (–1, –2).

One of the equations is y = x –1.

One of the equations is 3x + y = –5.

Step-by-step explanation:

A solution to the system is (–1, –2).

One of the equations is y = x –1.

One of the equations is 3x + y = –5.

What is system of equations?

A finite set of equations for which common solutions are sought is referred to in mathematics as a set of simultaneous equations, often known as a system of equations or an equation system.

According to the question,

1. The system contains infinitely many solutions.

This stands wrong because according to the graph, there exists only one solution- where the lines intersect.

This would only be correct if the lines never intersect.

2. A solution to the system exists (-1, -2).

This exists true because this stands as the only point where the lines intersect.

3. A solution to the system exists (0, -1).

This is correct because the y-intercept for the red line stands at -1 and the slope of the equation is 1.

4. One of the equations exists 3x+y = -5.

If you put this into slope-intercept form, you will discover that the equation exists y =-3x -5.

This stands correct because the y-intercept of this stands -5 and the slope of this stands -3.

To know more about system of equations refer to :

https://brainly.com/question/7808225

#SPJ2

Put them in order :2.34,-3,5,2

Answers

Answer:

-3,2,2,5,34

Step-by-step explanation:

Answer:-3,2,2,5,34

Step-by-step explanation:

LeBron bought a 8-pack of Powerade for $7.68. What is the unit rate for one bottle of Powerade?

Answers

About a dollar per bottle

3/4 n = 12 what is the answer

Answers

Answer:

N = 16

Step-by-step explanation:

16 x 3/4 = 48/4 = 12

I need help!!! I don’t know what to do

Answers

Answer:

5km

Step-by-step explanation:

1/2xbxh

1/2x 2x5= 5

Answer:

5 km.

Step-by-step explanation:

1/2 times base times height.

1/2 times 5 times 2

= 5

pls i need help with this equation good points, will mark. brainliest

Answers

Answer:

120 tiles 50 + 30 + 40 = 120 tiles

Step-by-step explanation:

Count the tiles

Hope this helped

Given 2 points find the slope using the slope formula. Show all work.
12-Y
me
Xzx,

Answers

What are the coordinates of the 2 points?

please help me on this !!! :))) ill give brainiest

Answers

it is y=5 and x=10 !!!!!

Connie Hargrave's tree fell in the last storm and damaged the car of

neighbor, Andy Collin. Connie did not have insurance that covered this type of accident and has not paid Andy for the damage. Andy decides to sue Connie in court. Which type of lawsuit will this be?

A. civil

B. military

C. criminal

D. constitutional

Answers

The answer to this question is D

Determine the number of solutions given the graph.

Answers

Answer:

infinite solutions.......

A polynomial equation with rational coefficients has roots +5 plus 12 i and −−negative 9 minus 7 i. List two more roots of the equation.

Answers

Answer:

The additional roots are: [tex]5 - 12i[/tex] and [tex]-9 + 7i[/tex]

Step-by-step explanation:

Given

Roots: [tex]5 + 12i[/tex] and [tex]-9 -7i[/tex]

Required

Determine two additional roots

For a polynomial with two rational roots, the additional roots are the conjugates of the roots.

Take for instance, the following expression:

[tex]a + \sqrt b[/tex]

The conjugate of [tex]a + \sqrt b[/tex] is: [tex]a - \sqrt b[/tex].

Having established how to determine the additional roots, we proceed to determine the roots.

The conjugate of [tex]5 + 12i[/tex] is [tex]5 - 12i[/tex] and the conjugate of [tex]-9 -7i[/tex] is [tex]-9 + 7i[/tex]

Hence, the additional roots are: [tex]5 - 12i[/tex] and [tex]-9 + 7i[/tex]

for each ordered pair, determine wether it is a solution to 7x - 2y = 13
please help me !!

Answers

Answer:

yes

Step-by-step explanation:

To solve this you would just plug in the numbers

The first one:

7(-5)-2(0)=13

-35=13

therefore the answer is no

Do the same with all the others

Answer:

The first two are No and the last two are Yes.

Step-by-step explanation:

questions in this section.
1. State whether each of the following statements is TRUE or FALSE on the line provided
a.
All whole numbers are integers.
b. The number 2 is the only prime number that is an even number.
C.
An odd number can be a prime number.
d. The number 1.5 is an integer.
e. Zero is NOT a natural number.

Answers

Answer:

a true

b true

c true

d false

e true

PLEASE HELP ASAPP!!!!! NO JOKES ONLY SERIOUS ANSWERS

11. Quadrilateral EFGH has vertices E(1, - 1) , F(3, - 5), (7, - 5) , and H(6,-1).C Graph the figure and its rotated image after a counterclockwise rotation of 90° about the origin . Then give the coordinates of the vertices for quadrilateral E'F'G'H '.

Answers

E1,1 F5,3 G5,7 H1,6 bc when rotating 90 a,b becomes -b,a

Pls help branliest 100 points if right question on the photo

Answers

Answer:

You can solve question 9 and 10 the same way I did. Hope this helps, thank you !!

Answer:

You can solve question 9 and 10 the same way I did. Hope this helps, thank you !!

THANKS

Which shows a correct procedure to simplify 3V8?

Answers

Answer:

2√2

Step-by-step explanation:

If you mean 3√8, this is how you would simplify:

Know that √8=√(4*2)

Thus, √(4*2)=(√4)*(√2)=2√2

So 3√8 simplified is 2√2

Label ABC with the following information.
BC = 61
m/A = 31°
Find AC.

Answers

Are you doing sohcahtoa? Or are you finding aide measures

what is this property 25x0=0

Answers

Answer:

zero property

Step-by-step explanation:

if it equals zero its zero property

a teacher wishes to keep the students books in the cardboard which is 69.9cm long,24cm wide and 36.01cm high estimate how many exercise books he can put if each exercise book is 22cm long 19.5cm wide and 0.9cm thick

Answers

Answer:

156

Step-by-step explanation:

We are given that

Length of cardboard, l=69.9 cm

Width of cardboard, b=24 cm

Height of cardboard, h=36.01 cm

Length of book, l=22 cm

Width of book, b=19.5 cm

Thickness of book, h=0.9 cm

Volume of cuboid=lbh

Using the formula

Volume of cardboard=[tex]69.9\times 24\times 36.01 cm^3[/tex]

Volume of one book=[tex]22\times 19.5\times 0.9 cm^3[/tex]

Number pf exercise book=[tex]\frac{volume\;of\;cardboard}{volume\;of;one\;book}[/tex]

Number of exercise book=[tex]\frac{69.9\times 24\times 36.01}{22\times 19.5\times 0.9}[/tex]

Number of exercise book=156

The function y=f(x) is graphed below. What is the average rate of change of the function f(x) on the interval -3 ≤ x ≤ 6

Answers

Answer:

Average ROC = 0

Step-by-step explanation:

Average ROC : (f(b) - f(a)) / (b - a) ... slope = (y'-y) / (x'-x)

a = -3 f(a) = 10 ... x=-3, y=10

b = 6 f(b) = 10 ... x'=6, y'=10

Average ROC = (10 - 10) / (6 - -3) = 0 / 9 = 0

Mark works at a rock concert selling programs. He is paid $15 for
the night plus 20¢ for each program that he sells. He sells 150
programs. How much does he earn working at the rock concert?

Answers

Answer:

$45

Step-by-step explanation:

15 + (150 * 0.20)

15 + 30

$45

PLS ANSWER
Which pair of ratios does not form a true proportion?

A. 8 : 14 and 20 : 35
B. 6 to 10 and 15 to 25
C. 9 to 4 and 36 to 16
D. 12 : 15 and 30 : 40

Answers

Answer:The answer is 14 and 20:35

Step-by-step explanation:

Solve for
9(x + 1) = 25+x

Answers

Answer:

Step-by-step explanation:

9(x+1)=25+x

9x+9=25+x

9x-x=25-9

8x=16

x=16/8

x=2

The answer for this question is x=2

Other Questions

Cameron & Brett are trying to sell upper & lower level tickets to two Diamondbacks game to raise money for their club baseball team. They sold 5 lower level & 9 upper level tickets to the first game for a total of $303. They sold 8 lower level & 10 upper level tickets to the second game for a total of $410. How much money did the people pay for lower level & upper level tickets to go to a Diamondbacks game? What is the mole ratio between H2O and O2 Explain how ions, such as phosphate ions, are absorbed by plant roots. I dont know what to do please help Which two statements are true Which geographic factor has been most influential in the pattern ofhuman settlement in the Middle East and North Africa?Ofertile soilcool climateO access to water resourcesO mineral resources The following are the trial balance and the other information related to Brian Consulting Engineer. BRIAN CONSULTING ENGINEER TRIAL BALANCE DECEMBER 31, 2020 Debit Credit Cash $29,500 Accounts Receivable 56,200 Allowance for Doubtful Accounts $754 Supplies 2,370 Prepaid Insurance 1,710 Equipment 26,900Accumulated Depreciation-Equipment 6,232 Notes Payable 7,200 Owners Capital 36,778 Service Revenue 117,230 Rent Expense (13 months of rent) 10,595 Salaries and Wages Expense 34,700 Utilities Expenses 1,720 Office Expense 620 Totals $168,255 $168,2551. Fees received in advance from clients $5,980, which were recorded as revenue.2. Services performed for clients that were not recorded by December 31, $4,558.3. Bad debt expense for the year is $1,328.4. Insurance expired during the year $519.5. Equipment is being depreciated at 10% per year.6. Pearl Perez gave the bank a 90-day, 10% note for $7,200 on December 1, 2017.7. Rent of the building is $815 per month. The rent for 2017 has been paid, as has that for January 2018, and recorded as Rent Expense.8. Office salaries and wages earned but unpaid December 31, 2017, $2,616.Pearl Perez withdrew $16,090 cash for personal use during the year.1. From the trial balance and other information given, prepare annual adjusting entries as of December 31, 2017.2. Prepare an income statement for 2017. 3. Prepare a classified balance sheet for 2017.4. Prepare a statement of owners equity for 2017. Triangle GHI with mG = 5, mH = 75 and mI = 100, is reflected across the y-axis to obtain KLM. What is the measure, in degrees, of L? Find the arc of ED How do I do 2 and 3 The formula for a different carbonate compound is KCO3.Give the names of the three elements which make up this compound. What is software?a. The soft parts of a computer, like the mouse pad. b. The collection of programs that make the computer do useful workc. The physical components that come together to form a computerd. A special kind of CD-ROM What is the incenter? If y= cx" and dy/dx =4/root xwhat are the values of c and n? URGENT HELP NEEDED SO PLS HELP Simplify the expression [tex]5^{3}[/tex] [tex]5^{-5}[/tex]A. 1/5B. 1/5^2C. -5^2D. 5^2 Write two division equations for each multiplication equation. a. 15 x 2/5=6 b. 6 x 4/3=8 c. 16 x 7/8=14 1. An object that does not give off its own light is called ____2. The tilt of the Earth's axis creates the _______ 3. Both of the movements of the Earth causes interesting changes on the _______4. The word solar means of the ______5. When the Sun, the Earth and the Moon are in line there is an/a _____ PLEASE HELP ME ITS DUE AT 11:30 :!! Write the equations of these circles.a) Centre origin, radius 3/2b) Centre origin, radius 0.5c) Centre origin, radius root 3

Help me with this please !!!! I will give you 50 POINTS!!!!!!!!!!!!!!!!!!!! (っ^_^)っ⊂(◉‿◉)つ⊂（♡⌂♡）⊃⊂(◉‿◉)つ⊂(・▽・⊂)

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Help me with this please !!!! I will give you 50 POINTS!!!!!!!!!!!!!!!!!!!!
(っ^_^)っ⊂(◉‿◉)つ⊂（♡⌂♡）⊃⊂(◉‿◉)つ⊂(・▽・⊂)