need help will give brainist ​

Answer:

Madeline: y=1x+9

Issac: y=2x+1

x=8, y=17

Step-by-step explanation:

Solving for X:

Multiply Issac's by -1:

y= 1x+ 9

-y=-2x-1

Combine:

0=-x+8

Add x to both sides:

x=8

Solving for Y:

Since we already have x, we only need to input the x value into one of the formulas:

y=1(8)+9

Simplify parenthesis with multiplication:

y=8+9

Add:

y=17

If you feel unsure, check your work with both equations:

(17)=2(8)+1

17=16+1

17=17=Good

(17)=1(8)+9

17=8+9

17=17=Good

Please give a brainliest and a thx ;)

I hope this helps u :)

Square Pyramid

Hence , the surface area of the square pyramid is 340 square feet

Step-by-step explanation:

The square pyramid has a square base

Given that the base side is 10 ft and the slant height of the pyramid is 12 ft.

The surface area of a square pyramid is SA, then

SA = Area of the base + [tex]\frac{1}{2}[/tex] × P × Sh

where P is the perimeter of the base and Sh is the slant height of the pyramid

P = 4 × 10

SA = [tex]10^{2} + \frac{1}{2}[/tex]× 40 × 12

SA = 100 + 240

SA= 340 square feet

Hence , the surface area of the square pyramid is 340 square feet

Answer:

Step-by-step explanation:

Semicircle:

diameter  = length of the rectangle = 25 cm

Half circumference = πd/2

= 3.14 * 25/2 = 39.25 cm

Perimeter of the figure = 39.25 + 20 + 25 + 20

= 104.25 cm

Answer:

104.25 cm

Step-by-step explanation:

Perimeter = three sides + arc

Arc length: ½ × pi × diameter

½ × 3.14 × 25

39.25

Perimeter

39.25 + 20 + 25 + 20

104.25

Factor then solve to find the complex solutions

c=2a+3

Answer:

c = 2a + 3

Step-by-step explanation:

2c + 5 = 11 + 4a

2c = 4a + 11 - 5

2c = 4a + 6

c = 4a/2 + 6/2

c = 2a + 3

Answer:

5.75

Step-by-step explanation:

Answer:

$0.05

Step-by-step explanation:

Given:

The base of the triangle = 6 ft

The height of the triangle = 5 ft

The other two side of the triangle = 5.5 ft and 5.5 ft

The height of the prism = 9 ft

To find the measurement of the fabric to make the tent.

We need to find the surface area of the triangular prism.

Formula

The surface area of the triangular prism is

[tex]SA = bh+(a+b+c)H[/tex]

where, b be the base of the triangle

h be the height of the triangle

a and c be other two sides of the triangle

H be the height of the prism

Now,

Putting,

b = 6, h = 5, a = 5.5, c = 5.5 and H = 9 we get,

[tex]SA = (5)(6)+(6+5.5+5.5)(9)[/tex] sq ft

or, [tex]SA = 30+153[/tex] sq ft

or, [tex]SA = 183[/tex] sq ft

Hence,

Based on the given dimension 183 sq ft fabric is needed to make the tent.

Answer:

68%

Step-by-step explanation:

Times both the top and bottom number by 4.

Answer:

Step-by-step explanation:

[tex]\frac{17}{25}*100=17*4[/tex]

  = 68%

Answer:

yes

Step-by-step explanation:

-8x -2y < 6

Substitute the point in for x and y

-8(3) - 2(2) <6

-24 - 4 <6

-28 <6

This is true  so the point is a solution

Answer:

a=4

Step-by-step explanation:

60=a(0+5)(0+3)

We can simplify this equation

60 = a (5) (3)

60 = a(15)

Divide each side by 15

60/15 = 15a/15

4 =a

Answer:

C) 4

Step-by-step explanation:

60=a(0+5)(0+3)

60 = a(5)(3)

60 = 15a

a = 60/15

a = 4

Answer:

1035

Step-by-step explanation:

(10x7.5)+(20x45)+(8x7.5)will give you the area

An algebra tile configuration with 5 tiles in the Factor 1 spot: +x², +x², +, +, +, and in the Factor 2 spot: +x², +x², +x, +x, +x, represents the factors of 4x² - 9.

In order to determine a solution for the given polynomial, we would factor it by using this quadratic form:

a² - b² = (a + b)(a - b)

4x² - 9 = 2x² - 3²

2x² - 3² = (2x + 3)(2x - 3)

Based on the calculations above, an algebra tile configuration with 5 tiles in the Factor 1 spot: +x², +x², +x, +x, +x, and in the Factor 2 spot: +x², +x², +x, +x, +x, represents the factors of 4x² - 9 as shown in the image attached below.

Read more on polynomials here: https://brainly.com/question/19571593

#SPJ5

Answer:

90^

Step-by-step explanation:

Answer: 0

Step-by-step explanation: Look at where y is -2 and the you can see the coordinate is 0 because it hits the y axis at 0.

Answer:

1

Step-by-step explanation:

Let the number be x

x² + 2x = 3

x² + 2x - 3 = 0

Product  = -3

Sum =2

Factors = 3 * (-1)

x² + 3x - x - 3 = 0

x*(x+3) - (x + 3) = 0

(x + 3)(x - 1) = 0

Ignore x + 3 because the number is a positive number

x - 1 = 0

x = 1

The number is 1

Answer:

You could write -5.16 as -5 4/25

Answer:

-5.16 = -129 /25  OR -5 and  4 /25

Step-by-step explanation:

Step 1: Write down the decimal divided by 1, like this: decimal 1. Step 2: Multiply both top and bottom by 10 for every number after the decimal point. (For example, if there are two numbers after the decimal point, then use 100, if there are three then use 1000, etc.) Step 3: Simplify (or reduce) the fraction.

1/7 divided by 3 can be written as:

1         3

----  ÷  ---- =

7         1

You need to do the reciprocal of 3 so that gives you 1/3.

1         1

----  ÷  ---- =

7         3

Then multiply numerator with numerator and denominator with denominator.

1         1             1

----  ÷  ---- =   --------

7         3         21

Your final answer is 1/21.

Answer:

Answer 3

Step-by-step explanation:

smog is fog or haze combined with smoke and other air pollutants

smog is formed when sunlight hits these air pollutants

Answer:

(A) [tex]sin C =\frac{4}{5}[/tex]

Step-by-step explanation:

Opposite,AB = 4,

Hypotenuse,BC = 5

Adjacent, AC = 3.

[tex]sin \theta =\frac{opposite}{Hypotenuse}\\ sin C =\frac{4}{5}[/tex]

The value of sin C, sin B, cos C, and tan B will be 4/5, 3/5, 3/5, and 3/4.

It's a form of a triangle with one 90-degree angle that follows Pythagoras' theorem and can be solved using the trigonometry function.

Right triangle ABC is shown. Side AB has a length of 4, side BC has a length of 5, and side AC has a length of 3.

Then the value of the sin C, sin B, cos C, and tan B will be

sin C = 4/5

sin B = 3/5

cos C = 3/5

tan B = 3/4

The diagram is given below.

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

https://brainly.com/question/3770177

#SPJ5

Answer:

Step-by-step explanation:

hello :  

geometric sequence whel the common ratio is : 32/80=80/200 = 0.4

200 ,80,32,12.8 , 5.12 , 2.048 , 0.8192

the 7th term is : 0.8192

Answer:

125.6 cm²

Step-by-step explanation:

Area of circle = πr²

Area of shaded region = Area of outer circle - area of the inner circle

= 3.14*7*7 - [3.14*3*3]

= 153.86 - 28.26

= 125.6 cm²

OR

= 3.14 * 7 * 7 - [3.14*3.*3]

= 3.14* [7² - 3²]

= 3.14* (7+3)(7-3)  

= 3.14* 10 * 4

= 125.6 cm²

Answer:

Angle 1 = 115

Angle 2 = 15

Angle 3 = 50

(1×10)+(8×1)+(2×110)+(9×1100)

Answer:

9m/12m = 3/4

Step-by-step explanation:

The fraction obtained after the simplification will be 3/4.

Simplifying is making something easier to do or comprehend, as well as making something less difficult.

[tex]=\rm \frac{9m}{12m} \\\\ = \frac{3}{4}[/tex]

The fraction obtained after the simplification will be 3/4.

To learn more about the simplification, refer:

https://brainly.com/question/23509407

#SPJ2

Answer:

20 quarts

Step-by-step explanation:

there is 4 quarts in one gallon therefore there is 5 times one gallon.

5*4=20  

Answer:

20 quarts

because there are 4 quarts in one gallon

hope this helps :)

Answer:

$1.16

Step-by-step explanation:

Answer:

B=119

Step-by-step explanation:

C=180-112=68

68+51=119

A=180-119=61

180-61=119

B=119

Answer:

∠ B = 119°

Step-by-step explanation:

∠ C and 112° are adjacent angles and supplementary, thus

∠ C = 180° - 112° = 68°

The external angle of a triangle is equal to the sum of the 2 opposite interior angles.

∠ B is an exterior angle of the triangle, thus

∠ B = 51° + ∠ C = 51° + 68° = 119°