Mathematics College

I need help with this question please

Answers

Answer 1

Answer:

Step-by-step explanation:

Given

[tex]A =(x_1,y_1)[/tex]

[tex]B =(x_2,y_2)[/tex]

[tex]C =(x_3,y_3)[/tex]

[tex]D =(x_4,y_4)[/tex]

Required:

Which condition proves that AB is perpendicular to CD

First, calculate the slopes of both.

For AB

[tex]m_1 = \frac{y_2 -y_1}{x_2 - x_1}[/tex]

For CD

[tex]m_2 = \frac{y_4 -y_3}{x_4 - x_2}[/tex]

The condition of perpendicularity is:

[tex]m_1 * m_2 = -1[/tex]

Substitute values for m1 and m2

[tex]\frac{y_2 -y_1}{x_2 - x_1} * \frac{y_4 -y_3}{x_4 - x_2} = -1[/tex]

Option (c) is correct

Related Questions

I really need help with this trigonometric function, i am struggling and it would mean a lot.

Answers

In mathematics, the trigonometric functions (also called circular functions, angle functions or goniometric functions) are real functions that relate an angle of a right-angled triangle to ratios of two side lengths. There are six trigonometric ratios, sine, cosine, tangent, cosecant, secant and cotangent. These six trigonometric ratios are abbreviated as sin, cos, tan, csc, sec, cot.

I would suggest calculator soup they have a trigonometric function calculator

And here is how to solve trigonometric function,

Put the equation in terms of one function of one angle.

Write the equation as one trig function of an angle equals a constant.

Write down the possible value(s) for the angle.

If necessary, solve for the variable.

The sum of a number and twice a second number is 29. The second number is ten less than three times the first number. What are the two numbers?

Also, write the two equations.

Answers

the sum of a number and twice a second number

What the degrees measure for 5/9 of a circle

Answers

Answer:

200

Step-by-step explanation:

5*360/9=200

PLEASE HELP!
Dean owes $14 on his credit card. He subtract five dollars from his credit card debt by making a payment. Dean
writes this subtraction equation to represent what he owes now. how much money does Dean owe now?
-14 - (-5)=?

answer options:
Dean owes $19
Dean owes $9
Dean has a positive $9
Dean has a positive $19

Answers

dean now owes $9 because -14 - (-5) is the same as -14+5, or 5 - 14

esdhvh,dsa,jgvgda,jkv,dkhfdshtrjea

BAME question: write out the correct proportion and solve to find 90% of 65

Answers

Answer: 58.5

Step-by-step explanation:

Tell me the Definition of each Word listed (math)

Answers

Constant: A value that doesn't change. Instead, it's a fixed value.

Variable: A symbol (usually a letter) standing in for an unknown numerical value in an equation.

Term: Either a single number or variable, or numbers and variables multiplied together. (Terms are separated by + or − signs, or sometimes by divide.)

Like Terms: Terms whose variables (and their exponents such as the 2 in x2) are the same. In other words, terms that are "like" each other.

Coefficient: A number used to multiply a variable.

What is the answer for this 5c + 9 -2c -7

Answers

Step-by-step explanation:

Given

5c + 9 - 2c - 7

= 3c + 2

Hope it will help :)❤

FREE BRAIN LIST NEED HELP ASAP

Answers

Answer:

i am not to sure but i thinks it D and can you help me with mine i really need help i will give brainlest too

Step-by-step explanation:

Answer:

D) 9.8

Step-by-step explanation:

Because you use h^2 = a^2 + b^2

and yiu rearranged the equation for one of the sides to get x = square root of h^2 and b^2 and get 9.79... which rounds to 9.8

In ΔMNO, the measure of ∠O=90°, the measure of ∠M=66°, and NO = 60 feet. Find the length of MN to the nearest tenth of a foot.

Answers

Answer: 65.7

Step-by-step explanation:

sinM=

hypotenuse

opposite

sin

⁡

sin66=

sin

⁡

xsin66=60

sin

⁡

sin

⁡

sin

⁡

sin66

xsin66

sin66

sin

⁡

65.6782

≈

65.7

feet

sin66

=65.6782≈65.7 feet

Answer:

Step-by-step explanation:

What is the area of the triangle?
16
8
10

Answers

Answer:

Step-by-step explanation:

Find the area of both triangles inside the bigger triangle and add them together.

Use the Pythagorean theorem to find the missing length of the leg in the smallest triangle:

a² + b² = c²

8² + b² = 10²

64 + b² = 100

36 = b²

6 = b

Calculate the area of the smaller triangle:

1/2(bxh)

1/2(6 x 8)

1/2(48)

Calculate the area of the bigger triangle:

We know that the longer leg is 10 units because we were able to subtract the length of the smaller triangle's leg from 16.

1/2(bxh)

1/2(10 x 8)

1/2(80)

Add both areas to find the area of the largest triangle:

40 + 24 = 64

WILL GIVE BRAINLIEST. NEED URGENTLY!

Use the FOIL method to find the product below.
(x + 3)(x2 - 6x)
A. x3 - 9x2 - 18
B. X8 - 9x2 - 18x
c. x3 - 3x2 - 18x
D. x2 – 3x2 - 18

Answers

Answer:

C) x³-3x²-18x

Step-by-step explanation:

x³-6x²+3x²-18x

x³-3x²-18x

3 (4x - 2) - 5x = 6 - 7 (-x -2)

Answers

Answer:

0=26

Step-by-step explanation:

Distribute

3(4−2)−5=6−7(−−2)

12−6−5=6-7(-x−2)

Combine like terms

12−6−5=6−7(−−2)

7−6=6−7(−−2)

Distribute

7−6=6−7(−−2)

7−6=6+7x+14

Answer

0=26

The solution to the equation 3 (4x - 2) - 5x = 6 - 7 (-x -2) does not exist

How to determine the solution to the equation

From the question, we have the following parameters that can be used in our computation:

3 (4x - 2) - 5x = 6 - 7 (-x -2)

Open the brackets

So, we have

12x - 6 - 5x = 6 + 7x + 14

Evaluate the like terms

So, we have the following representation

7x - 6 = 7x + 20

Next, we have

7x - 7x = 20 + 6

So, we have

0 = 26

This is false

Hence, the solution is no solution

Answers

Answer:

37.7

Step-by-step explanation:

C= 2(3.14)6

C = 6.28(6)

C= 37.68

C= 37.7

If you were to calculate the average rate of change of a function over a variety of intervals and you found that they were all the same, what conclusion could you draw and why

Answers

You could infer that there was the same amount of every interval.

Can someone please help meeeee

Answers

Answer:

Step-by-step explanation:

Complementary angles are summed up to be 90 degrees. If we already know that one if the angles is 37, all we need to do is subtract 37 from 90.

90-37 = 53

Hope this helps.

A customer at least lunches can choose a protein from chicken beef or shrimp the customer can also choose from right or brown rice which diagram shows all the possible combinations of one type of Protane and one type of rice

Answers

Answer:

Step-by-step explanation:

I cut a pizza in half. Then I cut each half into 3 equal pieces and each piece into 2 equal slices. I sold 6 slices. What fraction of the pizza did I sell?

Answers

Answer:

6/12

Step-by-step explanation:

im pretty sure, i did it on a paper correct me if im wrong sorry if i am

hi, if your looking for extra points (50+) and brainiest here is ur chance, answer this question correctly plz

Answers

Answer:

The y-intercept is -4.

Explanation:

The y-intercept is between -2 and -4 so its actually on -3

Answer:

The y-intercept is -4. This one is false.

Step-by-step explanation:

The slope is positive.

The point (8, 2) is on the line.

The y-intercept is NOT -4. The y-intercept is -3.

The line does not go through the second quadrant.

Which sum represents the partial fraction decomposition of 8x^ 4 + 3x^3- 115x^2- 39x+200/ 3x (x^2-10)^2

Answers

Answer:It's the last option again. You have 1 linear factor (3x) and 2 copies of a quadratic factor (x² + 10), and the partial fractions with the quadratic factor need to have a linear polynomial in the numerator.

Step-by-step explanation:

Answer:

Step-by-step explanation:

edge 2021

Can someone help meee

Answers

Angle B is also 54° because they are vertically opposite angles.

Now, you do 54+54=108 and then 360-108=252. (The angles should always add up to 360, so remember that) Because angles C and D are also vertically corresponding angles, they add up to 252, and each measure 126°

What is the value of y in the following equation? -10y + 4(3y – 8) = -64

Answers

Answer:

y=-16

Step-by-step explanation:

Answer:

y = -16

Step-by-step explanation:

−10y+4(3y−8)=−64

Step 1: Simplify both sides of the equation.

−10y+4(3y−8)=−64

−10y+(4)(3y)+(4)(−8)=−64(Distribute)

−10y+12y+−32=−64

(−10y+12y)+(−32)=−64(Combine Like Terms)

2y+−32=−64

2y−32=−64

Step 2: Add 32 to both sides.

2y−32+32=−64+32

2y=−32

Step 3: Divide both sides by 2.

−32

y=−16

Answer:

y=−16

What is the percentage of data between 90 and 140?

Answers

Answer:

50%

Step-by-step explanation:

find the 12th term of the geometric sequence 1,-4,16

Answers

Answer:

common ratio =r=3

Step-by-step explanation:

Answer:

−4194304

Step-by-step explanation:

What is the solution to 4x+63 ≤ 18?

Answers

Answer:

[tex] - \frac{45}{4} [/tex]

the answer is x ≤ -45/4

David has 54 marbles, 24 of which are black, 18 are red, and 12 are blue. What fraction represents the ratio of black marbles to blue marbles?

Answers

24/12 or 1/2 (if you want it simplified)

This is because the number of black marbles are 24 and blue marbles are 12, you can just put into a fraction like that :)

Add and Subtract Linear Expressions

1. Subtract m + 8 from 5m + 11.

Enter your answer in the box.

2. Add the two expressions.

−4.2x+3 and 2.5x−6

Enter your answer in the box.

Answers

Answer:

1. 4m + 3

2. -1.7x - 3

Pls help due tomorrow if correct ill give brailiest

Answers

Answer:

Add 3 each term inside the parentheses, then use inverse operations to solve.

Step-by-step explanation:

Determine whether the following sequence is geometric. If so, find the common ratio.
1, -5, 25, - 125, ...

Answers

Geometric sequence

-5 each term is multiplied by -5

-5is the answer I think

See picture. Please show work

Answers

Answer:

its the last one i had this question like 5 days ago i am sure

Answer:

option b) is not similar but they have ( mid point theorem) EF parallel to vu

and half of UV

L(-5, -1)
L'd
M(-3, 1). -
M'(
N(-1,8)
Nd

Answers

Answer:

huh

Step-by-step explanation:

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