Using a graphical method, solve the simultaneous equations x+y =4 and y=2x+1

Answer:

35

Step-by-step explanation:

2 x 7 = 14

5 x 7 = 35

Answer:

r = 9

Step-by-step explanation:

[tex] In\: \odot O, [/tex] QP is tangent at point P and OP is radius.

[tex] \therefore OP\perp QP[/tex]

[tex] \therefore m\angle OPQ = 90\degree [/tex]

So, [tex] \triangle OPQ[/tex] is a right angled triangle. Hence, OQ will be its HYPOTENUSE such that OQ = r + 32

Now, by Pythagoras theorem:

[tex] OQ^2 = OP^2 + PQ^2 [/tex]

[tex] \therefore (r + 32)^2 = r^2 + (40)^2 [/tex]

[tex] \therefore\cancel {r^2} + 64r + 1024 = \cancel {r^2} + 1600 [/tex]

[tex] \therefore 64r = 1600-1024 [/tex]

[tex] \therefore 64r = 576 [/tex]

[tex] \therefore r = \frac{576}{64}[/tex]

[tex] \therefore r = 9[/tex]

Answer: I believe it's 6 5/8

Step-by-step explanation:

Answer:

NO WAIT NO IGNORE MY PREVIOUS ANSWER

NOT A FUNCTION

If you draw vertical lines on the dotted line, one line will intersect two parts of the dotted line, so it is not a function.

Answer: w = 2

Explanation: To find the slope of a line, we use the formula y = mx + b, where m is the slope and b is the y-intercept. Since there is a variable, w, we can use this formula: m = 7 + w.

We know that m, or the slope of the line, is 9. If we substitute the value of 9 into that equation... we should get 9 = 7 + w.

It's simple mathematics from here.

7 plus what is 9?? 2. That's your answer. If you need help with slope-intercept and rate of change WITHOUT variables (besides x and y, of course), feel free to let me know!!

Where did I get that 7?

Usually, we use the slope formula to find the slope of a line when we know two points on the line. But if we already know the slope of a line, we can use the slope formula to find a missing coordinate of a point on the line.

We will be using this formula: y - y₂ = m(x - x₁)

This equation is useful when we know:

and we want to find the other point.

(x₁, y₁) is the known point. In our example, it's (-7,-7).

(x, y), sometimes written as (x₂,y₂), is (-6, w) and represents the missing coordinate.

EXAMPLE (SEE IMAGE):

slope (m) = 3

y − y1 = m(x − x1)

We know m, and also know that (x1, y1) = (3,2), and so we have:

y − 2 = 3(x − 3)

That is a perfectly good answer, but we can simplify it a little:

y − 2 = 3x − 9

y = 3x − 9 + 2

y = 3x − 7

EXAMPLE IMAGE:

The total amount of money spent/ amount of friends

Step-by-step explanation:

52/4

Answer:

4x = 52

Step-by-step explanation:

Let's say the cost of the ticket is represented by the variable x.

If 4 friends each went to the movies, and the tickets cost $52, that means

x + x + x + x = 52

Simplifying this, we get

4x = 52

If you want to solve for the cost of each ticket, divide both sides by 4.

After doing this, we get

x = $13

I hope this helps!

Answer:

B

Step-by-step explanation:

There are 24 hours in a day.

24/2=12

24+12=36

0.325*36=11.7

pls brainliest

Answer:

B

Step-by-step explanation:

Answer:

answer in the screen shot provided

Answer:

4 To 0

Step-by-step explanation:

it is 0-4=-4.

hence you can choose any other natural number too

Answer:

0.125

Step-by-step explanation:

25 percent means one fourth. To calculate 25 percent of a number, simply divide it by 4. For example, 25 percent of 12 is 12 divided by 4, or 3.

Answer:

SI = $1,200 ; A = $6,200

Step-by-step explanation:

First, converting R percent to r a decimal

r = R/100 = 3%/100 = 0.03 per year,

then, solving our equation

I = 5000 × 0.03 × 8 = 1200

I = $ 1,200.00

The simple interest accumulated

on a principal of $ 5,000.00

at a rate of 3% per year

for 8 years is $ 1,200.00.

After answering the query, we may state that area of shaded region = 100.48-64 =  36.48 sq cm.

Each point in the plane that is a certain distance from the centre (another point) forms a circle. Thus, it is a curve composed of points whose are separated from another point in the plane by a certain distance. Additionally, at every angle, it is alternately symmetric about the centre. The closed, two-dimensional plane of a circle has every pair of points equally separated from the "centre." By drawing a line through the circle, one may create a line of circular symmetry. Additionally, at every angle, it is rotationally equal about the Centre.

here, by Pythagoras theorem

diagonal =  [tex]\sqrt(8^2 + 8^2) = \sqrt(64+64) = \sqrt(128) = 8\sqrt2[/tex]

radius = [tex]4\sqrt2[/tex]

area of circles = [tex]\pi r^2 = 3.14 * (4\sqrt2)^2 = 100.48 cm^2[/tex]

area of square = 8*8 = 64 sq cm

area of shaded region = 100.48-64 =  36.48 sq cm.

To know more about circle visit:

https://brainly.com/question/29142813

#SPJ1

( 80/100) × A = ( 40/100 ) × B

Divide both sides by 40/100

( 80A/100 )÷( 40/100 ) = ( 40B/100 )÷(40/100 )

2A = B

Divide both sides by A

2A ÷ A = B ÷ A

2 = B/A

B/A = 2 × 100

B/A = 200 %

Answer:

200%

Step-by-step explanation:

Because I answered the question correctly.

Answer:

8 cm wide.

Step-by-step explanation:

5440/34/20=8 .

The number of times the rapper performed this year given the number of times he performed last year is 90.

Percentage is the fraction of an amount expressed as a number out of hundred. Percentage is a measure of frequency.

The number of times he performed this year = (1 + percentage) x number of times he performed last year

(1 + 1.25) x 40 = 90

Here is the complete question: Last year, a rapper performed 40 times. This year the rapper performs 125% of that number of times. How many times did he perform this year.

To learn more about percentages, please check: https://brainly.com/question/25764815

Answer:

-42

Step-by-step explanation:

Following Order of Operations, we have to multiply before subtracting, so

[tex]2-2*22[/tex]

[tex]=2-44[/tex]

[tex]=-42[/tex]

Using order of operations, we get -42.

Answer:

y = 42

Step-by-step explanation:

y = x^2 – 7

Let x=7

y = 7^2 – 7

y = 49 -7

y = 42

Answer:

the slope is unidentified

Step-by-step explanation:

x=2

there is no slope.

Answer:

Correct answer:

To find the diagonal length of the cube, we use the distance formula d=√(32+32+32 )=√(3*32 )=3√3, and then divide the result by 2 to find the radius of the sphere, (3√3)/2.

Answer:

20

Step-by-step explanation:

Answer:

Step-by-step explanation:

There are 45 in 3

3x=45

/3   /3

x=15

Hope it helps,

Kavitha

Answer:

Y=2x+2

Step-by-step explanation:

Y=0.5x-1

To find inverse, switch and y

x=0.5y-1

0.5y=x+1

Y=2x+2

Answer:

f −1(x)=2x+2

MARK AS BRAINLEST!!

Step-by-step explanation:

Answer:

Im pretty sure its D A B

Step-by-step explanation:

I am learning about this

Answer:

13. x=180-63=117°

14. y=133°

15. x=77°

Answer:

third bubble, y = (1/3)^x

Step-by-step explanation:

Answer:

Hello

Step-by-step explanation:

Nice to meet you. Welcome to Brainly where you can get points by answering different questions. You can also ask your own questions and it will be answered by thousands of Brainly users around the world. Enjoy!

Answer:

Welcome to Brainly. I hope you enjoy your stay.

Answer:

I think the answer is $4.92.

Step-by-step explanation:

Although the answer seems a little unreasonable, I think this is the answer:

$82 * 60% = $49.2

49.2 * 10% = $4.92

Please mark brainliest if correct!!!!!!!!!!!!!!! have a nice day!!

Answer:

[tex]m(DAB)=228^o[/tex]

[tex]m[/tex]∠[tex]BCD=48^o[/tex]

[tex]m[/tex]∠[tex]ABC=123^o[/tex]

Step-by-step explanation:

[tex]Given:[/tex]

m∠BAD=66°

m BD =2(m∠BAD)

= 2(66)

m BD=132°

m DAB= 360° - 132°

m(DAB) = 228°

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

m∠BCD= 1/2(m DAB -m BD)

= 1/2(228- 132)

m∠BCD= 48°

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

m∠ABC= 360-(66+48)/2

= 360 -114/2 = 246/2

m∠ABC=123°

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

hope it helps...

have a great day!!