I need help with this question.
Help needed!!!!!!!

Answer:

y=-3x+5

Step-by-step explanation:

3x+y+2=0

y=-3x-2   slope is -3

y-(-4)=-3(x-3)

y+4=-3x+9

y=-3x+9-4

y=-3x+5

Answer:

Sure, I'll explain the cosine rule and sine rule in simple terms:

The cosine rule (also known as the law of cosines) is used to find the length of a side or the measure of an angle in a triangle given the lengths of the other sides and the angle between those sides. It states that c^2 = a^2 + b^2 - 2ab cos(C), where c is the length of the side opposite angle C, and a and b are the lengths of the other two sides.

Here's an example of how to use the cosine

Suppose we have a triangle with sides a=6, b=8, and an angle between them c=45 degrees. We want to find the length of the remaining side of the triangle, side a.

Using the cosine rule:

a^2 = b^2 + c^2 - 2bc * cosA

where A is the angle opposite side a, we can plug in our values and solve for a:

a^2 = 8^2 + 6^2 - 2(8)(6) * cos(45)

a^2 = 64 + 36 - 96 * 0.707

a^2 = 10.56

a = sqrt(10.56)

a = 3.25 (rounded to two decimal places)

Therefore, the length of side a is approximately 3.25 units.

Answer:

Step-by-step explanation:

Answer:

not similar

Step-by-step explanation:

Answer:

Step-by-step explanation:

I would say not similar because they both don't have the same length and width but if you're talking about the shape itself then I would say similar because they are both quadrilaterals and trapezoids.

Answer:C

Step-by-step explanation 193/186=7

7/8

Answer:

I also think that

Step-by-step explanation:

Answer:

\(A=\frac{ab}{2}\) or \(A = a *\sqrt{c^2-a^2} /2\)

Step-by-step explanation:

Depending on the values you take depends on the equation you would use to solve for the area of a right triangle(the first answer accounts for measuring both arms(the sides connected to the 90 degree angle(a and b)), where as the second answer accounts for using the hypotenuse and one of the arms). That means that a 90 degree angle is involved, or as illustrated here, the square in the bottom right corner. If this were a non-right angle triangle, a different formula utilizing the height of the triangle would be used instead.

\(A = \frac{h_{b}+b}{2}\)

Since the right angle exists, a height is already given using one of the arms of the triangle in its place. We can also confirm it is a triangle by adding up all degrees of the triangle, in which it would equal 180 degrees confirming it is indeed a triangle as well.

By using trigonometric relations we will see that the area is:

How to find the area of one triangular section?

Remember that the area of a right triangle is equal to the product between the cathetus divided by 2.

Sadly, here we don't have the measures of any sides of the triangle, so getting the actual area is impossible, but if we assume that some dimension is given (like the height, let's say that is h).

h is the cathetus adjacent to the 60° angle, then the other cathetus (the bottom one) is given by:

tan(60°) = x/h

x = tan(60°)*h

Then our two catheti are h and tan(60°)*h.

This means that the area will be:

Here we only used trigonometric properties, so this area will work for any height given (always that the value of h is the cathetus adjacent to the 60° angle).

If you want to learn more about right triangles:

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Answer: B, C, B

Hope this helps!

Answer:

6+6+3=15 its 15 square centimeters

Answer:

16 SQUARE CENTIMETERS

Step-by-step explanation:  

2 TIMES 2 EQUALS 4

4 TIMES 3 EQUALS 12

4 PLUS 12 EQUALS  16 SQUARE CM

Answer:

the equation is f(x)4x+2

if the input is a generic number n, the output will be 4n+2

Step-by-step explanation:

Answer:

t = A - p/pr

Step-by-step explanation:

A = p + prt

A = p(1 + rt)

/p       /p

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

A/p = 1 + rt

-1       -1

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

A/p - 1 = rt

/r            /r

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

A/pr - 1/r = t

t = A - p/pr

Answer:

t = A - p/pr

Step-by-step explanation:

bring a and the rest of the values to one side

Answer:

B

Step-by-step explanation:

20+20+25+40+35=140

Answer:

total number of tickets sold = sum of total tickets sold each day.

so, total number of tickets sold = 140

Answer: I would say B is correct

Step-by-step explanation:

The figure created with the points (-2, -3), (-2, 5), (1, -3) and (1, 5) is a rectangle.

A rectangle is oblong. It has two pairs of parallel sides and four right angles. A rectangle can also be known as an equiangular quadrilateral. This is because a rectangle is a quadrilateral shape (4-sided shape) that has parallel sides, equal to one another, and all 4 corners have angles that are 90º.

Learn more about rectangles here https://brainly.com/question/25292087

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Answer:

I think it may be B

Step-by-step explanation:

Answer: a. 5

Since the angle is right, we know it is equal to 90 degrees.

Using the information provided, we can set up an equation.

50 + 5x + 15 = 90

Simplifying the equation, we get:

5x + 65 = 90

Subtracting 65 from both sides, we get:

5x = 25

Dividing both sides by 5, we get:

x = 5

Answer:

when 3 coins are tossed, the probability of two heads and one tail is 3 8.

Step-by-step explanation:

Answer:

question / options error?

Step-by-step explanation:

39miles cost a use of 1 gallon so rate would be 39miles per gallon so I believe it should be 1.smt gallon for the question?

Answer:

It would be D I got this question as well hope this helps

pls tell me if it's wrong if so sry

Answer:

14

Decimal Form -0.97206542

Step-by-step explanation:

Answer:

impossible

Step-by-step explanation:

There is no number on a die greater than 6.

14/15 letter C

Step-by-step explanation:

Answer:

C) 14/15

Step-by-step explanation:

- 2/5 + 1 1/3 = -6/15 + 20/15 = 14/15

Answer:

the flagpole is 12 ft  

Step-by-step explanation:

2.5 ft / 4 ft = 7.5 ft / x ft

2.5x = 30

2.5x/2.5 = 30/2.5

x = 12 ft

Answer:

187.5 inches^2

Step-by-step explanation:

15 x 12.5 = 187.5. Hope this helps!

Answer:

187.5 inches

you multiply Length X Width to get Area