Mathematics, 29.08.2019 23:30 angieagfan9270

The mean of 7 numbers is 15. when an 8th number is added the mean decreases to 12. what is the 8th number?

Answers: 1

Show answers

Another question on Mathematics

Mathematics, 21.06.2019 13:00

Ineed to learn how to solve this problem

Answers: 2

Answer

Mathematics, 21.06.2019 13:10

True or false? a triangle can be circumscribed about a given circle

Answers: 1

Answer

Mathematics, 21.06.2019 15:20

Which is the equation of an ellipse with directrices at x = ±4 and foci at (2, 0) and (−2, 0)?

Answers: 3

Answer

Mathematics, 21.06.2019 21:00

Consider the polynomials given below. p(x) = x4 + 3x3 + 2x2 – x + 2 q(x) = (x3 + 2x2 + 3)(x2 – 2) determine the operation that results in the simplified expression below. 35 + x4 – 573 - 3x2 + x - 8 a. p+q b. pq c.q-p d. p-q

Answers: 2

Answer

You know the right answer?

The mean of 7 numbers is 15. when an 8th number is added the mean decreases to 12. what is the 8th n...

Questions

History, 20.03.2022 14:00

Two primary sources on Spanish encounters with indigenous peoples (from OpenStax US History, Chapter 1):...

History, 20.03.2022 14:00

Use the quote below to answer the questions that follow: "In treating of our foreign policy…it is absolutely necessary to consider the Army and the...

English, 20.03.2022 14:00

How do estuaries benefit life for plants, animals, and humans? (Select all that apply) They collect nutrients that would otherwise be washed out to...

Mathematics, 20.03.2022 14:00

Add (6.3 x 104) + 38,000 Express your answer in both standard form and scientific notation. the 4 is above the 10...

Mathematics, 20.03.2022 14:00

The figure below has _ line(s) of symmetry.

Engineering, 20.03.2022 14:00

Technician A says that the cruise control on a vehicle that uses an electronic throttle control system uses a servo to move the throttle. Tech...

English, 20.03.2022 14:00

Use the drop-down menu to answer the question. Point: Amy Tan uses conflict to show her fears that Robert and his family will think that her Chinese...

Physics, 20.03.2022 14:00

Please help! A straight wire is placed in the magnetic field of a U-shaped magnet as shown in fig. 1 (attached) The length of the wire in the field is...

Business, 20.03.2022 14:00

Which organizational pattern addresses main points and then disproves opposing claims?....

Mathematics, 20.03.2022 14:00

Look at the following scales. Select the correct option that gives information about the unknown weight to balance the scale. *...

Mathematics, 20.03.2022 14:00

SCALE DRAWING: An architect made this drawing to represent a swimming pool. The actual length of the pool is 15 ft. What is the actual width o...

Biology, 20.03.2022 14:00

According to the antigenic diversity threshold hypothesis, ___ mutant strains build up over the course of an HIV infection, resulting the the developm...

Biology, 20.03.2022 14:00

Developed the first periodic table and arranged the elements in order of increasing atomic mass. Chadwick Chadwick Rutherford

History, 20.03.2022 14:00

What were the major economic reasons for Britain maintaining control over India?...

Mathematics, 20.03.2022 14:00

The largest Ferry in the puget Sound fleet can carry 2,500 passengers every hour

Mathematics, 20.03.2022 14:00

Find the length of AC. Round your answer to two decimal places.

French, 20.03.2022 14:00

Please help! Ill mark ! And 30 points! Hello I just want an explanation because i dont understand how to do this. Like what i remember was that you...

SAT, 20.03.2022 14:00

Describe and justify the methods you used to solve the quadratic equations in parts a and b...

Mathematics, 20.03.2022 14:00

Hua's parents order six pizzas. Four and a half pizzas are for Hua's slumber party. What fraction of the pizza order do Hu and her friends receive? Ci...

Mathematics, 20.03.2022 14:00

Greetings to everyone! Can anyone be willing to help me in the word problems on Normal Distributions? I will forever be thankful and grateful to you!...

More questions: Mathematics Another questions