What are the solutions to the system?
y = x2 – 2x – 8
y = x + 2
O A. (5, 7) and (-2,0)
O B. (5:3) and (-2, 4)
O C. (-5, -3) and (2, 4)
o
D. (5,3)and (2, -4)

Answer:

y = 17/2

Step-by-step explanation:

7y − 4 = 9y + 13 − 4y

Simplify both sides of the equation.

7y - 4 = 5y + 13

Subtract 5y from both sides.

2y - 4 = 13

Add 4 to both sides.

2y = 17

Divide both sides by 2.

y = 17/2

I hope this helps! Feel free to ask any questions!

Answer:

[tex]\sqrt{57}[/tex]

Step-by-step explanation:

Pythagorean Method

Look up "Everything You Need To Know About Math In One Big Fat Notebook pdf." It's the best thing I've ever been given, I have it with me in math class all the time and I've aced every test. I have it with me right now and it has everything I've ever been taught about math in it so it might help you.

Answer:

1200.96m

Step-by-step explanation:

please give me brainliest

Answer:

V = 1200.96 [tex]m^{3}[/tex]

Step-by-step explanation:

V = [tex]\pi[/tex] [tex]r^{2}[/tex] [tex]\frac{h}{3}[/tex] [tex]\pi[/tex] x [tex]9.14^{2}[/tex] x [tex]\frac{13.72}{3}[/tex] = 1200.95996[tex]m^{3}[/tex]

Answer:

Divide by 7 on both sides

Step-by-step explanation:

7x is a coefficient so you divide by 7

Answer:

396π in^3

Step-by-step explanation:

The formula for calculating volume of a cylinder is πr2h (r : radius, h : height)

π×6^2×11 = 396π in^3

Answer:

61 and 67

Step-by-step explanation:

Answer:

The only prime numbers between 60 and 70 are 61 and 67 -->

Step-by-step explanation:

Answer:

c.) 28 games

Step-by-step explanation:

First, you divide 80% by 100

80/100 = 0.8

Then, multiply it by the total games they have played.

0.8 * 35 = 28

There you have your answer :)

Answer:

C) 28 Games

Step-by-step explanation:

Graphical

Step-by-step explanation:

They have graphical pattern

Answer:

B!

Step-by-step explanation:

we know that (x-5) and (y-6) must add up to 129 because 180-51 is 129

now let's plug in the values to see

51-5= 66 63-6 = 57

57+66 is 123, not this one, let's repeat the same step

77-5 is 72, 63-6 is 57, these added is 129

Answer:

Vertex angle = 124°

Step-by-step explanation:

m<BAC = m<BCA (base angles of isosceles ∆ are congruent)

7x + 1 = 5x + 9

Collect like terms

7x - 5x = -1 + 9

2x = 8

divide both sides by 2

x = 4

Vertex angle = 180 - ((7x + 1) + (5x + 9)) (sum of triangle)

Plug in the value of x

Vertex angle = 180 - ((7*4 + 1) + (5*4 + 9))

Vertex angle = 180 - (29 + 29)

Vertex angle = 124°

Answer: See explanation

Step-by-step explanation:

Let the wind chimes of the same number that would make her form 100 sea shells be represented by x.

From the information given in the question, this can be denoted as:

12x + 8x = 100

20x = 100

x = 100/20

x = 5

She'll need 5 wind chimes. Let's check

12x + 8x

12(5) + 8(5)

60 + 40 = 100

Answer:

Step-by-step explanation:

Divide 27 by 0.3 to get your answer

Answer:

27.30 because your basically adding 30 as in cents.

Step-by-step explanation:

Answer:

(x-4)(x-3) hope this helps

Step-by-step explanation:

Answer:

Laura drives for [tex]36\ \text{minutes}[/tex] while Jackie drives for [tex]51\ \text{minutes}[/tex]

Step-by-step explanation:

Laura's commute is [tex]x\ \text{minutes}[/tex]

Jackie's commute is

[tex]x+15[/tex]

Laura drives 12 minutes for every 17 minutes Jackie drives so

For every minutes Laura drives Jackie drives [tex]\dfrac{17}{12}\ \text{minutes}[/tex]

So,

[tex]\dfrac{17}{12}=\dfrac{x+15}{x}\\\Rightarrow 17x=12x+180\\\Rightarrow 5x=180\\\Rightarrow x=\dfrac{180}{5}\\\Rightarrow x=36\ \text{minutes}[/tex]

Hence, Laura drives for [tex]36\ \text{minutes}[/tex] while Jackie drives for [tex]36+15=51\ \text{minutes}[/tex].

Answer:

A function will not have any repeating x values...it can have repeating y values, just not the x ones. So all ur x's have to be different.

This relation is NOT a function because u have repeating x values...u have 2 x values that are 0.3

Answer:

Your answer is

Perimeter = 18

Area= 20

Hope that this is helpful. Tap the crown button, Like & Follow me

Answer:

You can use option (D) to find the area of rectangle

(D) y = - x²+32x

Step-by-step explanation:

If you can substitute your values you can find your answer

THANK YOU....

PLZZ GIVE ME A BRAINLIEST TAG

The expression for the given rectangle with width x and area y is[tex]y = -x^{2} +32[/tex]

it is given that

area of the rectangle = y

width of the rectangle = x

so the length of the rectangle will be = area/width = [tex]\frac{y}{x}[/tex]

perimeter = 64

Perimeter is the sum of all four sides of the rectangle.

we can say that,

2(length + breadth) = 64

[tex]2( \frac{y}{x} + x)=64\\\\[/tex]

[tex]\frac{y}{x} + x= 32[/tex]

[tex]\frac{y + x^{2} }{x} = 32[/tex]

[tex]y+x^{2} = 32x[/tex]

[tex]y = -x^{2} +32[/tex]

therefore, the expression for the area of the rectangle,

[tex]y = -x^{2} +32[/tex]

to get more about rectangles refer to the link,

https://brainly.com/question/25292087

Answer:

Step-by-step explanation:

y-(-4)= 7/4(x-(-4)

Y+4= 7/4x +4

Y = 7/4x

Answer:

A. Medera turned the phone off while playing in the soccer game

Step-by-step explanation:

Answer:

A.

Step-by-step explanation:

Hope this helps :)

Answer:

B Barney stops less than a foot from the car.

Step-by-step explanation:

From the information given:

The initial speed of barney [tex]v_o[/tex] = 25 mph

Coefficient of friction [tex]\mu[/tex] = 0.7

Recall that

1 mph = 0.447 m/s

Then

[tex]v_o[/tex] = 25 × 0.447 m/s

[tex]v_o[/tex] = 11.175 m/s

The force of friction acting on the barney is expressed as:

[tex]F = \mu N \\ \\ F = \mu mg[/tex]

[tex]ma = \mu mg[/tex]

[tex]a = \mu g[/tex]

a = 0.7 × 9.8 m/s

a = 6.86 m/s²

Since the force acts in an opposite direction to the motion of Barney, Thus the acceleration must also be negative.

a = -6.86 m/s²

Now;

Suppose Barney stops after traveling a  distance (s), so that the final speed is zero.

Then;

Using the kinematic equation;

[tex]v^2 - v_o^2 = 2as[/tex]

[tex]0 - (11.17)^2 = 2 \times (-6.86) s[/tex]

[tex]-124.76 = -13.72 s[/tex]

[tex]s = \dfrac{124.76}{13.72}[/tex]

s = 9.09 m

Recall that;

1 m = 3.28 ft

So;

s = 9.09 m = 9.09 × 3.28 ft

s = 29.81 ft

∴

The distance traveled by the Barney is 29.81 ft which implies that Barney stops less than a foot from the car.

Answer:

The war started mainly because of four aspects: Militarism, Alliances, Imperialism and Nationalism. This is because big armies become potential threats to other countries, other countries started forcing alliances in order to secure land. ... The overall cause of World War was the assassination of Archduke Franz Ferdinand.

Step-by-step explanation:

Answer:

20X=200 because an equation contains LHS and RHS

Answer:

280 inches

Step-by-step explanation:

Answer:

El largo tendrá un valor de 180 m y al ancho tendrá un valor de 90 m

Step-by-step explanation:

Un rectángulo es un cuadrilátero con dos lados de igual longitud y dos lados de igual ancho que contiene cuatro ángulos rectos. Para encontrar el área de un rectángulo, debes multiplicar su longitud por su ancho. Es decir, el área del rectángulo es igual al largo por el ancho.

En este caso, sabes que el ancho es dos veces más pequeño que el largo. Entonces, siendo el largo x, el ancho tendrá un valor de x÷2.

Siendo el área del terreno rectangular 16,200 m², entonces

x*(x÷2)= 16,200 m²

Resolviendo:

x² ÷2= 16,200 m²

x²= 16,200*2 m²

x²= 32,400 m²

x= √32.400 m²

x= 180 m

Entonces, el largo tendrá un valor de 180 m y al ancho tendrá un valor de 90 m (180 m÷ 2)

Answer:

69

Step-by-step explanation:

4x3=12

9x5=45

2x6=12

45+12+12=69

Answer:

임의의 변수로 풀기

g = 5

f = 5

Step-by-step explanation:

english: Solve in terms of the arbitrary variable

g=5

f=5

한국에서이 질문을 한 선생님은 누구입니까?

Answer:

[tex]900\times 3^m[/tex] = 100

Step-by-step explanation:

The number of visitors is modeled by the expression [tex]900\times 3^m[/tex]

Where m is the number of months after the number of visitors was measured.

We need to evaluate the above expression for m = -2.

So,

[tex]900\times 3^m=900\times 3^{-2}\\\\=900\times \dfrac{1}{3^2}\\\\=900\times \dfrac{1}{9}\\\\=100[/tex]

At m = -2, the value of the above expression is equal to 100.