2
Think: A student attempted to solve the equation below by Pair/Share: Do you agree or
completing the square.
disagree with the steps taken so
far? Explain.
x²- 2x-1=2
+1+1
because ...
x ²-2x=3
XP-2x +1 = 3+1
*²-2x + 1 = 4
(X+1}=4
b = 2
half:-1
Square: 1

Answer:

the polygons are similar

Answer:

....try t out

The answer is 40

Answer:

Quotient=42

Step-by-step explanation:

Answer:

[tex]\sf x = 7.8[/tex]

explanation:

[tex]\sf a^2 + b^2 = c^2[/tex]

[tex]\hookrightarrow \sf 9.5^2 + x^2 = 12.3^2[/tex]

[tex]\hookrightarrow \sf x^2 = 12.3^2 - 9.5^2[/tex]

[tex]\sf \hookrightarrow x^2 = 151.29 - 90.25[/tex]

[tex]\hookrightarrow \sf x^2 = 61.04[/tex]

[tex]\hookrightarrow \sf x = \sqrt{61.04}[/tex]

[tex]\hookrightarrow \sf x = 7.8[/tex]

Here, we are given with ;

[tex]{:\implies \quad \sf (3x^{2}-7x)-(4x^{2}+6x)}[/tex]

Opening parentheses will yield;

[tex]{:\implies \quad \sf 3x^{2}-7x-4x^{2}-6x}[/tex]

Collecting like terms ;

[tex]{:\implies \quad \sf (3x^{2}-4x^{2})+(-7x-6x)}[/tex]

[tex]{:\implies \quad \sf -x^{2}-13x}[/tex]

Hence, the required answer is - x² - 13x

Answer:

[tex](3 {x}^{2} - 7x) - (4 {x}^{2} + 6x) \\ \longrightarrow \: \: 3 {x}^{2} - 7x - 4 {x}^{2} - 6x \\ \longrightarrow \: \: {3x}^{2} - {4x}^{2} - 7x - 6x \\ \longrightarrow \: \: - {x}^{2} - 13x \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: [/tex]

Answer:

Angle 2

Step-by-step explanation:

Vertical angles are angles facing each other, and have equal measures.

So if they gave you the measure of angle 2, you would’ve known the answer for angle three. ur welcome :)

Answer: Yea dude your best bet is 2

Step-by-step explanation: Because you really have to know your angles like obtuse and acute that type of stuff

Answer:

(p/3)-3=114

114 plus 3 = 117 (one-third of the novel)

117 x 3 = p = 351 (entire novel)

Step-by-step explanation:

(p/3)-3=114

114 plus 3 = 117 (one-third of the novel)

117 x 3 = p = 351 (entire novel)

Answer:

Answer is 62

Step-by-step explanation:

here is my work if this is any help

Answer:

C ≈ 31.4 units

Step-by-step explanation:

the circumference (C) of a circle is calculated as

C = 2πr ( r is the radius ) , then

C = 2π × 5 = 10π ≈ 31.4 units ( to the nearest tenth )

Answer:

it should be 12240 !

Step-by-step explanation:

sorry if this is wrong, but im fairly certain its right :]

Answer:

D

Step-by-step explanation:

I tried the last one and it did not work so maybe D

Answer:

Area of Mrs. Margarita's garden = 1188.39 m²

Step-by-step explanation:

Using the most basic formula to solve this question i.e. Area of circle. We know that: Area of of circle = πr². But in problem we are provided with a half shaped circle. Means we need to use the half of the area of circle or you can say semi-circle.

Now, read the question again. Mrs. Margarita has a garden shaped like a half-shaped circle with a diameter of 55 m. Given diameter is 55 m and we know that radius is half of the diameter. So, radius is 55/2 m. Rest what we need to do is substitute the values and do the rest calculations.

Let's dive in!

= 1/2 × 22/7 × 55/2 × 55/2

= 11/7 × 55/2 × 55/2

= 33275/28

The expression that is equivalent to the expression [(6c² + 3c)/(-4c + 2)] ÷ [(2c + 1)/(4c - 2)] is; -3c

Simplification of fractions is the process of reducing fractions that involves making the fraction as simple as feasible.

We achieve this by dividing the numerator and denominator by the greatest integer that divides perfectly into both numbers.

The given expression is;

[tex]\frac{[(6c^2 + 3c)(-4c + 2)] }{[(2c + 1)/(4c - 2)]}[/tex]

On Simplifying the fraction equation by factorization we obtained ;

[tex]\frac{[3c(2c + 1)/(-2(2c - 1))]}{[(2c + 1)/(2(2c - 1)]}[/tex]

[tex]\frac{[3c(2c + 1) }{(-2(2c - 1))] \times [(2(2c - 1)/(2c + 1)]}[/tex]

[tex]-3c[/tex]

Hence he expression that is equivalent to the expression [(6c² + 3c)/(-4c + 2)] ÷ [(2c + 1)/(4c - 2)] is; -3c

To learn more about the simplification of fractions refer to the link;

https://brainly.com/question/11479469

Answer:

6

Step-by-step explanation:

Given

[tex]\frac{8(6)(6)}{6(8)}[/tex] ← cancel a 6 and 8 from the numerator/ denominator

= [tex]\frac{6}{1}[/tex] = 6

OR

Multiply the values on the numerator/ denominator

= [tex]\frac{288}{48}[/tex] = 6

Like terms are those terms that are having the same variables and order. The simplified form of the given equation 7z+2=8+2z+1z is 4z=6.

Like terms are those terms that are having the same variables, also the variables are of the same order as well.

for example, 25x and 5x are like terms; 30xy and 7xy are like terms, 9x³ and 4x² are not like terms, etc.

The given equation to us is 7z+2=8+2z+1z, simplifying the equation we will get,

[tex]7z + 2 = 8 + 2z + 1z\\\\\text{Bring the like terms on the same side of the equation}\\\\7z -2z-1z = 8 -2\\\\7z-3z=6\\\\4z = 6[/tex]

Hence, the simplified form of the given equation 7z+2=8+2z+1z is 4z=6.

Learn more about Like Terms:

https://brainly.com/question/2513478

Answer:

7 cats

Step-by-step explanation:

if each cat needs 0.23 pounds of food, then she can feed 1.61/0.23 = 7 cats

Answer:

p = 7

Step-by-step explanation:

6p - 10 and 32 are vertically opposite angles and are congruent , then

6p - 10 = 32 ( add 10 to both sides )

6p = 42 ( divide both sides by 6 )

p = 7

Answer:

I'm sorry i do not know but can you please press thanks it would really help me sorry i didn't know but u cant type your question in g00gle and 9 x out of 10 you will get the right 1

Step-by-step explanation:

sorry again im not that smart

Answer:

yes

Step-by-step explanation:

when you are dividing fraction, you have to flip the 2nd fraction (reciprocal)

16 / 3/4 is equal to 16 * 4/3

Answer:

C. f(n+1) = 1.05f(n)

Step-by-step explanation:

correct on edge

f(n + 1) = 1.05f(n) can be used to determine the total amount of money earned in any year based on the amount earned in the previous year.

Function, in mathematics, an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable.

Here, we have,

Martina opens a savings account with an initial deposit and makes no other deposits or withdrawals. She earns interest on her initial deposit. The total amount of money in her savings account at the end of each year is represented by the sequence shown.

100, 105, 110.25, ...

hence, f(n + 1) = 1.05f(n) can be used to determine the total amount of money earned in any year based on the amount earned in the previous year.

To learn more on function click:

brainly.com/question/21145944

#SPJ2

Answer:

Step-by-step explanation:

let the number of members in the club be N

The first day the members paid

$30 for transportation plus $20 per ticket to the planetarium.

cost= 30+20N

The second day the members paid

$95 for transportation plus $17 per ticket to theGeology museum.

cost= 95+17N

total cost is

T= 30+20N+ 95+17N

T=30+95+20N+17N

T=125+37N

An expression to represent the total cost and dollars for two days for the N members of the club is

T=125+37N

Answer:

c = 256

Step-by-step explanation:

Good Luck :)