1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
soldi70 [24.7K]
3 years ago
10

The coordinates of point D are (7, 4) and the coordinates of point E are (1, −3) . What is the slope of the line that is perpend

icular to DE¯¯¯¯¯?
Enter your answer as a simplified fraction.
Mathematics
1 answer:
Katarina [22]3 years ago
7 0
The slope of a line is given by the change in y coordinates over the change in x coordinate.
The slope of line DE will be (4 - -3)/ (7-1) = 7/6
If M1 and M2 are slopes of two perpendicular lines at a point then
 M1× M2 = -1
 Thus, the slope of a perpendicular to line DE will be -6/7.
You might be interested in
2. It is required to make a closed cylindrical tank of height 1 m and base diameter 140 cm
4vir4ik [10]

Answer:

It's required 7.48\ m^2 of sheet for the tank

Step-by-step explanation:

<u>Surface Area of a Cylinder</u>

Given a right cylinder of base radius r and height h, the surface area is calculated as follows:

S=2\pi r^2+2\pi r h

The cylindrical tank has a height of h=1 m and a base diameter of 140 cm. The radius is half the diameter, thus r=140/2 = 70 cm = 0.7 m. Substituting:

S=2\pi 0.7^2+2\pi (0.7)(1)

S=2\pi 0.49+1.4\pi

S=2.38\pi

\boxed{S=7.48\ m^2}

It's required 7.48\ m^2 of sheet for the tank

7 0
3 years ago
The quotient of 2 and a number x, times 3
alexira [117]

Answer:

3(x + 2)

Step-by-step explanation:

quotient = (x + 2) \times 3 \\  \hspace{42 pt} = 3(x + 2)

7 0
3 years ago
A certain statistic will be used as an unbiased estimator of a parameter. Let R represent the sampling distribution of the estim
7nadin3 [17]

Answer:

c. The expected values of R and S will be equal, and the variability of R will be greater than the variability of S.

Step-by-step explanation:

This is Central Limit Theorem concept in which independent variables are added and form a normal distribution. The random sample of n sample size is selected which calculates normally distributed mean and variance. The expected value of samples distributor will be higher than the sample distribution.

6 0
3 years ago
Please answer this two question ​☹️☹️please answer this question please please please
snow_lady [41]

Answer:

4. < ACB = 90° and < CBA = 52°

5. <SPQ+ <SRQ = 180°

so, <SPQ= < QRT = 100°

3 0
2 years ago
What is the surface area of the triangular pyramid?
KonstantinChe [14]

Answer:

126 Sq unite

Step-by-step explanation:

I took the assignment

8 0
2 years ago
Read 2 more answers
Other questions:
  • Jeanine Baker makes floral arrangements. She has 13different cut flowers and plans to use 5 of them. How many different selectio
    15·1 answer
  • What is the inverse function of (x)=4x- x/6
    13·1 answer
  • Information gathered from observing a plant grow 3 cm over a two-week period results in:
    12·1 answer
  • Many medications are determined by the weight of the patient in kilograms. When a patient’s weight is measured in pounds, the do
    12·2 answers
  • Need help with this equation b^2+2b-13=2 can you please explain
    15·2 answers
  • Plz I need help !!!!!
    5·1 answer
  • Evaluate 7^35 7^-21 7^-8
    5·1 answer
  • A cone has the same radius and height as a cylinder which has greater volume the cone or the cylinder
    7·1 answer
  • Pls can anyone help me!!!!!
    11·1 answer
  • Justin is making cookies, using a recipe in which the ratio
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!