100 POINTS!!!!!! hELP ASAP EXAM
Show that ( + )^2 = ( + )( − ) + 2

Answers

Answer 1

Answer:

2+y=x÷2 y=5 x=23

Step-by-step explanation:

it was very eazy

Answer 2

Let that unknown one be x

[tex]\\ \rm\rightarrowtail x^2=x(-x)+2[/tex]

[tex]\\ \rm\rightarrowtail x^2=-x^2+2[/tex]

[tex]\\ \rm\rightarrowtail 2x^2=2[/tex]

[tex]\\ \rm\rightarrowtail x^2=1[/tex]

[tex]\\ \rm\rightarrowtail x=1[/tex]


Related Questions

4x+8=3
help asap
step by step please

Answers

[tex]4x +8 =3\\\\\implies 4x = - 5 \\\\\implies x = - \dfrac 54[/tex]

Answer:

x= -5/4

Step-by-step explanation:

4x+8=3

4x=3-8

4x=-5

x= -5/4

For Geometry: explain why Angle- Angle Troangle Similarity Theorem works

Answers

Answer: To answer your question: If two of the angles of two triangles are the same, the triangles are similar. ... If two of the angles are known, the third can be found by subtracting the two known angles from 180. If the three angles of two triangles are the same, the triangles have the same shape and are similar.

Step-by-step explanation:: I have now explained  to you why the Angle- Angle Triangle Similarity Theorem works i hope Iwas able to help good luck


Keshawn's bank account had a balance of $40.51 last month. This month he won a cash prize of $73.95 for winning a competition. How much money does Keshawn have at the end of the month if there are no other transactions?

Answers

Answer:

$114.46

Step-by-step explanation:

40.51+73.95=114.46

what is the unit rate if there are 80 miles driven using 4 gallons of gas

A. 21 miles per gallon B. 20 miles per gallon

C. 22 miles per gallon D. 19 miles per gallon

Answers

B. 20 miles per gallon
The answer B because if you use one gallon it’s 20miles then two gallons is 40 miles and so on

I need help with these. I have no idea how to find the answer for them. My teacher told me the first one was 136 but she didn’t explain how to find the answer or anything. Can someone please explain how you get the answers step by step & not just give them to me. Thank!

Answers

Answer:

136

55

53

70

Step-by-step explanation:

1) here x and 136 are alternate interior angles and they are equal

2) here x and 125 lie on the same straight line

so x  + 125 = 180

x = 55

3) here 53 and x are corresponding angles and they are equal

x = 53

4) for this see picture below

side angle to 110 becomes x because of corresponding angles

and as this x and 110 lie on same line

x + 110 = 180

x = 70

Answer:

A) If a line crosses 2 parallel lines, then each angle it forms with the first line is the same angle on the second line. And when 2 lines crosses, the opposite angles are the same.

B) x is 180° - 125° = 55°

C) x is 53° (If a line crosses 2 parallel lines, then each angle it forms with the first line is the same angle on the second line.)

D) x is 180° - 110° = 70°

Option A: 40 trash bags for $6.29 Option B: 24 trash bags for $3.89
Which is the better option. Explain step by step-by-step. ​

Answers

Option B is a better option.

Step by step:

I divided 40/6.29 and got about 6.3.

I divided 24/3.89 and got about 6.1.

Which is less, 6.3 or 6.1?
If you said 6.1 you are correct, so option B has a less cost, making it a better option.

(10). An article marked at 1,200 is sold at an 8% discount . Find the S.P of the article?

Answers

Answer:

$1,104

Step-by-step explanation:

If the discount is 8%, then you would need to subtract 8% (0.08) from 1, which would be 0.92. Now multiply $1,200 by 0.92 and you'll get $1,104.

Answer:[tex] \rightarrow [/tex] The S.P or sale price of the article is $1,104.

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

Solution:

[tex] \rightarrow [/tex] 1,200 x (100% - 8%)

[tex] \rightarrow [/tex] = 1,200 x 0.92

[tex] \rightarrow [/tex] = 1,104

Find the area of triangle PQR.

Answers

Answer:

70°

Step-by-step explanation:

Since  PTS shape is equal to QTR

and  PTQ shape is equal to STR

and Since QTP = 10

and Since  PTS = 60

Add both up 70

Therefore PQR = 70°

Aroha is 3 years older than her brother. The sum of Aroha's age and her brother's age is 31. Write and solve and equation to find their ages

Answers

Answer:

Therefore, Aroha is 17 yrs old and her brother is 14 yrs old.

Step-by-step explanation:

Let's represent Aroha's brother's Agee with the letter "b" yrs old.

If Aroha is 3yrs older than her brother, she's : (b+3) yrs old.

The sum of their ages is 31,

b+(b+3)=31

2b+3=31

Collect like terms,

2b=31-3

2b=28

Divide both sides by 2,

b=14

b+3=17

A cheerful teen hoping this helps,

stay techy, brilliant and positive!

Please help me, its 3:06am in the morning & i have class in 3 hours :(

Answers

they look the same size but because of the 2 in front meaning it's going to be double than what the real answer it is (and it twelve Ike it's counter part) it would be six... yet someone already answered before me so credits to him.

ANSWER 6

A line is an undefined term because it

Answers

A line is an undefined term because it describes something that does not have width or depth. However, lines can extend its length in both side infinitely. It contains arrowheads indicating it can extend.

Undefined Terms.

In geometry, point, line, and plane are considered undefined terms because they are only explained using examples and descriptions. Name the points, Lines, & Planes. Collinear points are points. that lie on the same line.

Answer:

A line is an undefined term because it describes something that does not have width or depth. However, lines can extend its length in both side infinitely. It contains arrowheads indicating it can extend.

A city has 3 new houses for every 7 old houses. If there are 21 new houses in the city, how many old houses are there
A. 49
B. 47
C. 52
D. 51

Answers

Answer:

A. 49

Step-by-step explanation:

ratio of houses is 3 new to 7 old

21 new is 7 times more than 3, so 7 will also be 7 times more

so, 21 to 49

I hope that made sense

Please help with this math

Answers

Answer:

iuj

Step-by-step explanation:

Which expression is undefined? (-4+0) O A. OB. 0 : 11 O c. OD. –​

Answers

Answer:

C

Step-by-step explanation:

Third expression asks you to basically divide by zero. That is, find a number that multiplied by 0 gives you 3, which is impossible.

Hello!

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

Option C

Division by 0 is undefined.

6-6=0, and any expression that has 0 it its denominator is undefined.

I hope it helps you! (:

~SparklingFlower

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Serena’s average speed during her training run was 8 kilometers per hour over the 2 hours that she ran. What was the total distance that she ran?

Use the formula d = rt, where d represents the distance, r represents the rate, and t represents the time.
4 km

Answers

Step-by-step explanation:

so, we just enter the given data into the given formula. and then calculate. it does not get easier than that.

d = 8km/h × 2h = 16km

Serena ran 16km in these 2 hours.

Answer:

the correct answer is 16km

Step-by-step explanation:

pl.z dont delete this

Determine the slope of the line represented by the equation 9x + 4y = 8. Represent the slope in decimal form.

Answers

Answer:

slope = - 2.25

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Given

9x + 4y = 8 ( subtract 9x from both sides )

4y = - 9x + 8 ( divide through by 4 )

y = - 2.25x+ 2 ← in slope- intercept form

with slope m = - 2.25

how do I find a slope that does not have zero as a point of origin​

Answers

Answer:

See answer below.

Step-by-step explanation:

Pick any two ordered pairs that is on the given graph line.

The  Slope = (the change in the y-values)/(the change in the x-values) or


An employee receives an 8% raise each year. The salary this year is $42,000. Which two expressions will calculate the salary for next year?

Answers

$42,000 x .08 = $3,360 raise
$42,000 + $3,360 = $45,360 salary for the next year

What is the value of x?


A hexagon (6 sides)

133°
112°

120°
128°
100°


please help asap, no links

Answers

Answer:

X is 120° I hope this helps you

plz someone help me..​

Answers

Letter B




Correct me if im weong
It’s Answer B well it should be !!!

there are 5 crayons 4 pencils and 6 erasers. what is the number of crayons to total school supplies

Answers

Answer:

5 crayons to 15 school supplies

Step-by-step explanation:

since its supplies in general, add 5 crayons, 4 pencils, and 6 erasers to get 15 total

if you have 80 feet of fencing and want to enclose a rectangular area up against a long, straight wall, what is the largest area you can enclose

Answers

Answer:

300 ft^2

Step-by-step explanation:

Multiply 30 by 10

The largest possible area that we can enclose in a form of a rectangle with a perimeter of 80 ft is 399 sq feet.

What are the area and perimeter of a rectangle?

We know the perimeter of any 2D figure is the sum of the lengths of all the sides except the circle and the area of a rectangle is the product of its length and width.

Given, I have 80 feet of fencing.

Assuming the length of the wall to be 'l' and the width of the wall to be 'w'.

∴ 2(l + b) = 80.

l + b = 40.

So, the sum of length and width is 40, now l + b can be 20 + 20 but that would be a square and give us maximum area but we need a rectangle.

We know the product of the sum of two numbers is maximum when the difference between them is minimum.

∴ The maximum rectangular area we can enclose is when the length is 21 and the width is 19.

Area = 21×19 sq feet.

= 399 sq feet.

learn more about rectangles here :

https://brainly.com/question/15019502

#SPJ5

X According to a survey, 60 sixth grade students at Madison Middle School attended a summer camp. This is 30% of the entire sixth grade. How many students are in the sixth grade?

Answers

Answer: total is 200

Step-by-step explanation:

30% = 60

10% = 60/3 = 20

100% = 200

The ratios of boys to girls in a class is 6:9. If there are 39 girls in the class, how many boys would be in the class?​

Answers

Answer:

6.5

Step-by-step explanation:

6 to 9 so 39 divided by 6 and you get 6.5

Answer:

6:9 in-simplified is 23:39

Step-by-step explanation:

So 6:9 written in lowest terms is 23:39, this is known as reducing fractions.

discount is calculated on which price

Answers

Answer:

The discount is list price minus the sale price then divided by the list price and multiplied by 100 to get a percentage. Where: L = List Price. S = Sale Price

Which answer is an equation in point-slope form for the given point and slope? point: (7, 4); slope: 6.

Answers

Answer: the answer is

y-4=6*(x-7)

Step-by-step explanation:

Pls help fast
What is the recursive rule for the sequence shown in the graph

Answers

Answer:

[tex]a_{n} =a_{n-1} -4[/tex]

explanation:

The recursive rule for the given graph will be [tex]a_{n} = a_{n-1}-4[/tex] thus, option (A) is correct.

What is a graph?

A graph is a diametrical representation of any function between the dependent and independent variables.

For example y = x² form a parabola now by looking at only the graph we can predict that it has only a positive value irrespective of the interval of x.

In the given graph, as n increases [tex]a_{n}[/tex] decreases.

At n = 4 , a₄ = a₃ - 4 = 5 - 4 = 1

Thus, [tex]a_{n} = a_{n-1}-4[/tex]  will be the recursive rule.

Hence "The recursive rule for the given graph will be [tex]a_{n} = a_{n-1}-4[/tex]".

To learn more about graphs,

brainly.com/question/16608196

#SPJ2

Work out the mean for the data set below:
3.4, 5.2, 4.7, 3.5, 0.5
Give your answer as a decimal.

Answers

Answer:

3.4 + 5.2 + 4.7 + 3.5 + 0.5

= 17.3

There are a total of 5 numbers

17.3 / 5

= 3.46

use the long division method to divide 120÷24​

Answers

Step-by-step explanation:

120÷24

    

    0   24⟌120

    0   24⟌120   0  

    0   24⟌120   -0      1

    00  24⟌120   -0      12 

   0   24⟌120   -0      12 

    00  24⟌120   -0      12    - 0     12 

   00  24⟌120   -0      12    - 0     120

I’m not sure since you can only come up with one digit

the decimal equivalent of 14/26

Answers

Step-by-step explanation:

14/26

Cancel numerator and denominator with 2 ,

7/13 = 0.5384

Answer:

0.538

Step-by-step explanation:

14/26 is basically 14 into 26

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