I need help with math trigonometry and law of sines

Answer:

B, A, C

Step-by-step explanation:

Answer:

t=6 years

Step-by-step explanation:

Answer:

3x+6.9 and 3x-4

Step-by-step explanation:

since 3 x x is 3x and the sign in the bracket is addition you place it there then place 3 x 2.3

being 6.9.

1/3 x 9is 9/3 and 3 can multiply both sides to get 3/1 or 3 then bring the minus and 1/3 x 12 is 12/3 3 can multiply both sides to get 4/1 or 4

Answer:

The perimeter is 56.6 ft

Step-by-step explanation:

  7.7 * 6 + 5.2 * 2

= 46.2 + 10.4

= 56.6 ft

Answer:

x = -5 , y = 10

Step-by-step explanation:

As given ,

a = ( x₁ , y₁ ) = ( -6, 7)

b = ( x₂ , y₂ ) = (-1, -3)

For a -b = ( x₁ - x₂ , y₁ - y₂ )

            = ( -6 - (-1) , 7 - (-3) )

            = ( -6 + 1 , 7 + 3 )

            = ( -5 , 10 )

⇒ a - b = ( -5, 10 ) = ( x, y)

∴ we get

x = -5 , y = 10

Answer:

Step-by-step explanation:

Question 1

System of equations is,

y = -6x -------(1)

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

Substitute the value of y from equation (1) to equation (2)

-6x = -4x - 2

-6x + 4x = -2

-2x = -2

x = 1

From equation (1)

y = -6(1)

y = -6

Question (2)

System of equations is,

-y = x --------(1)

3x + 5y = 20 ---------(2)

Substitute the value of x from equation (1) to equation (2)

3(-y) + 5y = 20

-3y + 5y = 20

2y = 20

y = 10

From equation (1)

-y = x

x = -10

Question (3)

System of the equations is,

y = -2x - 7 --------(1)

9x - 10y = 12 ----------(2)

Substitute the value of y from equation (1) to equation (2)

9x - 10(-2x - 7) = 12

9x + 20x + 70 = 12

29x = 12 - 70

29x = -58

x = -2

From equation (1)

y = -2(-2) - 7

y = 4 - 7

y = -3

Answer:

the circumference is roughly 6.28

Step-by-step explanation:

the formula for circumference is C=2πr and radius is the diameter divided by 2 so there for the radius is 1.

Answer:

A = s²

A = (7/8)²

A =49/64

A= 0.77inches

Answer:

ertyui

Step-by-step explanation:

yo no se ok yo no se solamente qiero puntos

Answer:

x=60°

x=48°

x=21°

Step-by-step explanation:

Inequalities

The sum of the exterior and the interior angle of a triangle is 180°.

The measure of an exterior angle of a triangle is called x, thus the interior angle is 180-x.

This angle is said to be at least twice x, thus:

180 - x ≥ 2x

Adding x:

180 ≥ 3x

Dividing by 3:

60 ≥ x

Swapping the inequality:

x ≤ 60°

The measure of x must be less or equal to 60°.

Three possible solutions are:

x=60°

x=48°

x=21°

Answer:

i dont know but my Friends do

Answer:

c ////

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

[tex]x^2+6x-40=(x+10)(x-4)\\\\\frac{x-16}{(x+10)(x-4)}+\frac{1}{x+10} \\\frac{1}{x+10}*\frac{x-4}{x-4} \\\frac{x-4}{(x+10)(x-4)}+\frac{x-16}{(x+10)(x-4)} \\=\frac{2x-20}{(x+10)(x-4)}=\frac{2x-20}{x^2+6x-40}[/tex]

Answer:

126

Step-by-step explanation:

First multiply 6 by 1. This equals 6. Then, multiply 6 by 20 to get 120. 6+120=126.

Answer:

b

Step-by-step explanation:

Answer:

135°

Step-by-step explanation:

The total interior angle sum of a pentagon is 540°, so the remaining angle is 135°.

Answer:A closed, or shaded, circle is used to represent the inequalities greater than or equal to (≥) or less than or equal to (≤) . The point is part of the solution. An open circle is used for greater than (>) or less than (<). The point is not part of the solution. Solving" systems of linear inequalities means "graphing each individual inequality, and then finding the overlaps of the various solutions". So I graph each inequality, and then find the overlapping portions of the solution regions.Step 1: Line up the equations so that the variables are lined up vertically. Step 2: Choose the easiest variable to eliminate and multiply both equations by different numbers so that the coefficients of that variable are the same. Step 3: Subtract the two equations. Step 4: Solve the one variable system.

Step-by-step explanation:

hope this helps have a great night ❤️❤️❤️

Answer:

6 pounds

Step-by-step explanation:

Answer:

9

Step-by-step explanation:

x Is -1/3 of y

-27x-1/3= 9

The value of x when y = -27 is 9.

y varies directly as x

Therefore,

y ∝ x

y = kx

where

k = constant of proportionality

Let's find k when y = 9 and x = -3

y = kx

9 = -3k

k = 9 / -3

k = -3

Let's find x when y = -27

y = kx

-27 = -3x

x = -27 / -3

x = 9

learn more on variation here: https://brainly.com/question/25391692?referrer=searchResults

Answer:

bottom left

Step-by-step explanation:

it has a slope of 2 and a y intercept of -2

Answer:it’s z

Step-by-step explanation:

Answer:

x=14

Step-by-step explanation:

Answer:

78

Step-by-step explanation:

You just plug in 13 as the length and 6 as the width

Then you multiply and get the answer

Answer:

Restoration I believe

I'm so sorry if I'm wrong

Step-by-step explanation:

Answer:

photosynthesis

Step-by-step explanation:

answer

volume of cube=edge³

125,000=edge³

cube root of 125,000 is the side of the cube.

side=50inches

Answer: 3 1/2

I hope this helps!

Answer:

3 1/2 servings

Step-by-step explanation:

9 1/3 / 2 2/3 = ?

28/3 / 8/3 = 84/24

reduce 84/24

3 1/2

Answer: B

Step-by-step explanation:

Answer:

39

Step-by-step explanation:

Answer: 24

Step-by-step explanation:

The other information regarding the question is that the Medium pizza cost $9 while the Large pizza cost $15.

The number of medium sized pizza that Wright sold will be represented by x.

(5 × $15) + ($9 × x) = $291

$75 + 9x = $291

9x = $291 - $75

9x = $216

x = $216/9

x = 24

He sold 24 medium pizza

Answer:

holy.... that's a lot of variables.

4t+2s+w+u+x+v