I need help because I don’t know what they are asking

Answer:

see explanation

Step-by-step explanation:

A difference of two squares is factored as

a² - b² = (a - b)(a + b)

(g)

1 - 81y²

= 1² - (9y)²

= (1 - 9y)(1 + 9y)

(j)

64x² - 25y²

= (8x)² - (5y)²

= (8x - 5y)(8x + 5y)

Answer:

[tex] \boxed{ \bold{ \huge{ \bold{ \sf{20.05 \: \pi \: units}}}}}[/tex]

Step-by-step explanation:

Area of a circle ( A ) = 32 π units

Radius of a circle ( r ) = ?

Perimeter of a circle ( P ) = ?

First ,finding the radius of a circle :

[tex] \boxed{ \sf{area \: of \: a \: circle = \: \pi \: {r}^{2} }}[/tex]

[tex] \dashrightarrow{ \sf{32 \: \pi= \: \frac{22}{7} \times {r}^{2} }}[/tex]

[tex] \dashrightarrow{ \sf{32\pi \: = 3.14 {r}^{2} }}[/tex]

[tex] \dashrightarrow{ \sf{3.14 {r}^{2} = 32\pi}}[/tex]

[tex] \dashrightarrow{ \sf{ \frac{3.14 {r}^{2} }{3.14} = \frac{32\pi}{3.14} }}[/tex]

[tex] \dashrightarrow{ \sf{ {r}^{2} = 10.19 \: \pi \: }}[/tex]

[tex] \dashrightarrow{ \sf{r = \sqrt{10.19\pi} }}[/tex]

[tex] \dashrightarrow{ \sf{r = 3.19\pi}}[/tex]

Finding the perimeter of a circle ( P )

[tex] \boxed{ \sf{perimeter \: of \: a \: circle = 2\pi \: r \: }}[/tex]

[tex]{\sf{ \: perimeter \: of \: a \: circle = 2 \times \frac{22}{7} \times 3.19 \: \pi}}[/tex]

[tex] \sf{perimeter \: of \: a \: circle = 20.05 \: \pi \:units }[/tex]

Hope I helped!

Best regards! :D

The perimeter of the circle with an area of 32 π square units is 2√32π units.

Given,

The area of a circle is 32 π square units.

We need to find its perimeter.

The area of a circle is given by:

= π r²

The perimeter of a circle is given by:

= 2πr

Where r = radius

Find the area of a circle.

Area = π r²

32 π  = π r²

Divide both sides by π

32 = r²

r = ±√32

r can not be negative so we have,

r = √32

Find the perimeter of a circle.

P = 2πr

P = 2 x π x √32

P = 2√32 π units

The perimeter of the circle with an area of 32 π square units is 2√32π units.

Learn more about how to find the circumference of the circle and the area of the circle here:

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Answer:

7 = 3t + 1

t = 6

....................

7 = 3t - 2t + 3

t = 4

Answer:

50.27

Step-by-step explanation:

Answer:

50.24

Step-by-step explanation:

[tex]r = 4 \\ \pi = 3.14 \\ area = \pi {r}^{2} [/tex]

Input the values into the equation

[tex]3.14 \times {4}^{2} \\ = 3.14 \times 16 \\ = 50.24[/tex]

Answer:

680

8√5=17.8

16√5=75.7

32√5​=71.5

Step-by-step explanation:

Answer:

True

Step-by-step explanation:

Every x has only one y-value

Answer:

True

Step-by-step explanation:

Answer:

157

Step-by-step explanation:

Answer:

a) possible progressions are 5

b) the smallest and largest possible values of the first term are 16 and 82

Step-by-step explanation:

Sum of terms:

In order a₁ to be an integer, d must be even number, so d = 2k

Possible values of k= 1,2,3,4,5

As per above,

Answer:

:) not right

Step-by-step explanation:

Answer:

its a yes i think

Step-by-step explanation:

the value is probably

Answer:

132

Step-by-step explanation:

We are given the equation 6/33 = 24/x. We would like to solve for x.

To get rid of the fractions, let's multiply both sides by 33x:

(6/33) * 33x = (24/x) * 33x

6x = 24 * 33 = 792

Divide by 6 from both sides:

x = 792/6 = 132

Thus, x = 132.

~ an aesthetics lover

.Answer: When we find the product of any two polynomials, we just multiply each term of the first polynomial by each term of the second polynomial then simplify. When we find the product of two binomials, we can use a technique known as the FOIL method. FOIL is an acronym which stands for First, Outside, Inside and Last.

Step-by-step explanation:

Answer: [tex]A = 15 - 4x[/tex] .

Step-by-step explanation:

Total amount remaining = Initial amount in the card-( Cost per cup × (Number of cups) )

Each cup of coffee costs $1.50 and after buying 4 cups of coffee, the card had a $9 remaining balance.

i.e.  9 = Initial amount in card - (1.50 × 4)

⇒  9 = Initial amount in card - (6)

⇒  Initial amount in card = 9+-6 =15

⇒  Initial amount in card = $15

Let A be the amount money remaining on the card after buying x cups of coffee.

So,  A = 15 - 4x

Hence, the required equation is [tex]A = 15 - 4x[/tex] .

Answer:

A= -1.50x+15

Step-by-step explanation:

Answer:

She can buy 3 games.

Step-by-step explanation:

Giving the following information:

Carol got $500 for her birthday.

Xbox 1= $278

A new game costs $62

First, we need to structure the total cost formula:

Total cost= 278 + 62x

x= number of games

Now, we can isolate x:

500= 278 + 62x

222/62= x

3.58=x

She can buy 3 games.

Step-by-step explanation:

3:74

x:2500

(3x2500)/74

=101

Answer:

100

Step-by-step explanation:

Answer:

Hay 403 chicas que disfrutan las matemáticas en este colegio.

Step-by-step explanation:

Podemos obtener las siguientes pistas tras una lectura cuidadosa del enunciado:

1) Existen 627 alumnos entre hombres y mujeres en el colegio.

2) La cantidad de chicas es el duplo de la cantidad de chicos.

3) Solo a 15 chicas les disgusta las matemáticas.

Matemáticamente hablando, podemos construir las siguientes tres fórmulas:

[tex]x+y = 627[/tex] (1)

[tex]y = 2\cdot x[/tex] (2)

[tex]m = y - 15[/tex] (3)

Donde:

[tex]x[/tex] - Cantidad de chicos en el colegio, adimensional.

[tex]y[/tex] - Cantidad de chicas en el colegio, adimensional.

[tex]m[/tex] - Cantidad de chicas que disfrutan de las matemáticas en el colegio, adimensional.

Al eliminarse [tex]y[/tex] en (1), se puede hallar la cantidad de chicos en el colegio:

[tex]x + 2\cdot x = 627[/tex]

[tex]3\cdot x = 627[/tex]

[tex]x = 209[/tex]

Hay 209 chicos en el colegio.

Por (2) podemos determinar la cantidad de chicas:

[tex]y = 2\cdot (209)[/tex]

[tex]y = 418[/tex]

Hay 418 chicas en el colegio.

Finalmente, se calcula la cantidad de chicas del colegio que disfrutan las matemáticas por (3):

[tex]m = 418-15[/tex]

[tex]m = 403[/tex]

Hay 403 chicas que disfrutan las matemáticas en este colegio.

Answer:

3/-4 i think

Step-by-step explanation:

one point is -2/1 and the other 2/-2

1 - -2=3

-2 -2=-4

Answer:

Figure A i don't know

Step-by-step explanation:

Answer:

the answer is A. Figure A

Answer:

C, 130

Step-by-step explanation:

Area is just length x width, it would just be 13*10

Answer:

C) 130 sq. units

Step-by-step explanation:

it's what I got

Answer:

substitute 8 into x =(8-2)2

(6)2=12

"You" and your "5 friends" means that there are 6 people total.

All we need to do is divide.

54 / 6 = 9

Therefore, each person gets 9 pieces of candy.

Best of Luck!

Answer:

 So the probability of drawing a second red marble is 8 out 10 or 0.8.

Step-by-step explanation:

It seems to me that if one red marble is already gone, there are 8 red marbles left out of a total of 10 marbles.

So the probability of drawing a second red marble is 8 out 10 or 0.8.

Answer:

8/10 or 4/5 or 0.8

Step-by-step explanation:

since one red marble is already taken, there are only eight remaining now and the total number of marbles are ten now. So you have to divide.

Therefore, the probability is 8/10 or 4/5 or 0.8.

The correct answer is B. 700,000

Answer:

B) 7 2/3, √3/2, 4/5, -2π, -6.5

Step-by-step explanation:

B) 7 2/3, √3/2, 4/5, -2π, -6.5

Answer:

Chelsea has $48, Essence has $144

Step-by-step explanation:

Answer:

68719476736

Step-by-step explanation:

(4−2)−9

=(4−2)−9

=4(−2)(−9)

=418

=68719476736

Answer:

This is pretty simple, im almost certain you just make all exponents positive.

Step-by-step explanation:

so just make it 4 to the power of 2, to the power of 9

Answer:

B

Step-by-step explanation:

toookt the test dude

Answer:

d = [tex]\sqrt{53}[/tex]

Step-by-step explanation:    

Answer:

The rays represented in the diagram includes

Ray AB, NB, BN, BA

The vertex where rays NB and NA meets = N

Step-by-step explanation:

A ray is a line segment that extends endlessly from a given point. A ray is a line that has unbounded endpoint but has a start or endpoint.

A vertex is the point or corner which is the meeting point of two or more lines or rays. In the question, the meeting point of the rays NB and NA is the point N, which can be said to be the vertex of the two rays.

Answer:

S(-2,-1)

Step-by-step explanation:

The point is the remaining vertex of a triangle with an area of 4 square units will be S(-2, -1). Then the correct option is B.

The area of the right-angle triangle is given as

A = 1/2 x B x H

Where B is the base and H is the height of the right triangle.

The distance between the points P and Q will be 4 units.

If the ordinate of the point is (a, 3) or (b, -1). Then the area of the triangle will be 4 square units.

The point is the remaining vertex of a triangle with an area of 4 square units will be S(-2, -1).

Then the correct option is B.

More about the area of the right-angle triangle link is given below.

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