Please help will give Brain!

Answer:

Step-by-step explanation:

The required solutions of the given system of equations is x = -7 and y = -5.

Simultaneous linear equations are two- or three-variable linear equations that can be solved together to arrive at a common solution.

Here,

Given system of equation

y=x+2 - - - - -(1)

y=4x+23 - - - - (2)

From above equations,
x + 2 = 4x + 23
x = -7

Now,
y = -7 + 2
y = -5

Thus, the required solutions of the given system of equations is x = -7 and y = -5.

Learn more about simultaneous equations here:

https://brainly.com/question/16763389

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Answer:

x=7

Step-by-step explanation:

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Answer:

B. 10+2r

Step-by-step explanation:

make the cockroach method it distribute the numbers and letters.

Answer:

40

Step-by-step explanation:

[tex]180 - 116 = 64[/tex]

[tex]180 - 64 \times 2 = 52[/tex]

[tex]180 - 52 - 88 = 40[/tex]

Answer:

b

Step-by-step explanation:

6^2+8^2=10^2

Answer:

B:8

Step-by-step explanation:

Use the Pythagorean Theorem.

Answer:

Quotient : 3x³ + x² + x + 3

Step-by-step explanation:

Give the polynomial :

Dividend : 3x⁴+16x³+6x²-2x-13;

Divisor : x+5

Kindly check attached picture for detailed explanation.

Answer:

Step-by-step explanation:

wheres X on the screen

Answer:

Im hella sorry i couldn't find the answer i tried my best sorry :c

Answer:

8.3

Step-by-step explanation:

Answer:

(-4,-0.5)

Step-by-step explanation:

Answer:

b

Step-by-step explanation:

Answer:

a.)x² + y² = 900

b.)y = √900 - x²

Step-by-step explanation:

P.S - The exact equation is as follows :

As given,

The shape of the roller coaster is a half of a circle. Center the circle at the origin and assume the highest point on this leg of the roller coaster is 30 feet above the ground.

a.)

Equation of circle be x² + y² = r²

As given , leg of the roller coaster is 30 feet above the ground.

⇒ r = 30

⇒x² + y² = 30²

⇒x² + y² = 900

∴ we get

Equation of height of Roller coaster - x² + y² = 900

b.)

As we have,  x² + y² = 900

⇒y² = 900 - x²

⇒y = √900 - x²

The equation that models the height of the roller coaster is [tex]y = \sqrt{900 -x^2[/tex]

The general equation of a circle is:

[tex]x^2 + y^2 = r^2[/tex]

From the complete question, the radius of the circle is 30 units.

This means that:

r = 30

So, we have:

[tex]x^2 + y^2 = 30^2[/tex]

Express 30^2 as 900

[tex]x^2 + y^2 = 900[/tex]

Subtract x^2 from both sides

[tex]y^2 = 900 -x^2[/tex]

Take square roots of both sides

[tex]y = \pm \sqrt{900 -x^2[/tex]

Remove the negative root

This is so because the roller coaster is above the ground, and the height will be positive.

So, we have:

[tex]y = \sqrt{900 -x^2[/tex]

Hence, the required equation is [tex]y = \sqrt{900 -x^2[/tex]

Read more about equations of circle at:

https://brainly.com/question/10244007

Answer:

C, [tex]10[/tex]

Step-by-step explanation:

[tex]7x+10=8x[/tex]

subtract [tex]7x[/tex] form both sides

[tex]10 = x[/tex]

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Answer:

225 pi

Step-by-step explanation:

2pi r=30pi

pi r =15pi

pi r2=225pi

225 pi

Answer:

27?

Step-by-step explanation:

27 is a whole number you know

Answer:

72 books will fit on the shelf

Answer:

it should be 40º but it doesn't look like that's an option...

Step-by-step explanation:

so we know that the inside of a triangle is equal to 180º and for the triangle on the right we already have two angles. so we can add the angles (41 + 72 = 113) and then subtract that from 180 to find the missing angle.

180 - 113 = 67º

now we also know that vertical angles are congruent/the same. so the vertice that is connecting the two triangles is also 67º. we can do the same thing we did with the other triangle, add the angles up and subtract from 180.

67 + 73 = 140

180 - 140 = 40º

we know this is true because when you add all the angles up it equals 180.

67 + 73 = 140 + 40 = 180

44 would put it at 184º which is not correct, and 150 would put it at 290ª which is also not correct...

Answer:

option b

Step-by-step explanation:

21/48 reduced to it's lowest term is 7/16 and solving option b... 7/12 ×3/4 3 would divide 12 to give 4 and multiply what you have left which is 7/4 ×1/4 would be equal to 7/16

-3/2

We can find slope using the equation (y2-y1)/(x2-x1). Substitute your values in for the xs and ys.

(-5 - (-2))/(-1 - (-3))

-3/2

Answer:

Step-by-step explanation:

8x -28 = 4(x - 28)

12x + 15 = 3(4x + 5)

Answer:

12.1

Step-by-step explanation:

to doublecheck times it 8 to see if you get 96.8

3x^3-18x^2-165x=0

Since we are given the solutions, we can rewrite them.

x=-5 is (x+5)

x=11 is (x-11)

x=0 is just x

Now we can write our equation:

3x(x+5)(x-11)=0

*3 comes from the a being 3

Now we multiply, I’d recommend starting by using FOIL on the last two first and getting;

3x(x^2-6x-55)=0

Then distribute the 3x:

3x^3-18x^2-165x=0

Step-by-step explanation:

Yea we need more information.

Answer:

X=37

Step-by-step explanation:

Add 4x+2 and 30 it equals to 180. Then you get x.

Answer:

I = P/(RT)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Equality Properties

Algebra I

Step-by-step explanation:

Step 1: Define

P = IRT

Step 2: Solve for I

Answer:you have to find how much hrs are together the multiply by 2 and dived really i just need points

Step-by-step explanation:

Answer:

Step-by-step explanation:

z-15 + 2z = 180

3z-15 = 180

3z = 195

z=65

130=m<C

130=m<A

50=m<D

50=m<B