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
Masja [62]
2 years ago
12

Which expression is equivalent to z+(z+6)?

Mathematics
1 answer:
skelet666 [1.2K]2 years ago
4 0

Answer:

2(z+3)

Step-by-step explanation:

You might be interested in
Z is twelve less than the sum of x and y
Furkat [3]
X+y-12=z
EXPLANATION:
7 0
3 years ago
Read 2 more answers
A question "I" made.
Lina20 [59]

Answer:

41.67%

Step-by-step explanation:

:)

6 0
3 years ago
The photo is attached
aleksley [76]

D

using the double - angle identity

cos (2A) = cos² A - sin² A = 2cos² A - 1 = 1 - 2sin² A

the right side = 1 - 2sin² (112.5° ) with A = 22.5°

hence 2A = 2 × 22.5° = 45°

thus cos 45° = 1 - 2sin² ( 22.5°)


7 0
3 years ago
A retail variety store that advertises extensively by mail circulars expects a sale with 20% probability. Suppose 30 prospects a
KIM [24]

Answer:

The expected number of sales of this store from this sample of 30 is 6.

Step-by-step explanation:

For each prospect, there are only two possible outcomes. Either there is a trade, or there is not. Prospects are independent of each other. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

Probability of exactly x sucesses on n repeated trials, with p probability.

The expected value of the binomial distribution is:

E(X) = np

A retail variety store that advertises extensively by mail circulars expects a sale with 20% probability.

This means that p = 0.2

Suppose 30 prospects are randomly selected from a city-wide mailing.

This means that n = 30

What is the expected number (mean) of sales of this store from this sample of 30?

E(X) = np = 30*0.2 = 6

The expected number of sales of this store from this sample of 30 is 6.

4 0
2 years ago
Which expression is equivalent to 3x + 6
Ksju [112]

Answer:

3(x+2)

High Hopes

                       Barry-

8 0
2 years ago
Other questions:
  • When the Spanish arrived in the Aztec capital of Tenochtitlan, what were they impressed with?
    11·1 answer
  • You roll a fair 6-sided die what is the probability of rolling a number grader than 4?
    6·2 answers
  • Henry bought a gallon of milk on Monday. That day, he drank 2 cups of milk. On Tuesday, he drank 1 cup of milk and his brother h
    12·2 answers
  • A librarian recorded the number of books that were checked out on each of the last 9 days,as shown below. 142, 136, 125, 148, 15
    14·2 answers
  • Help me and please explain
    10·1 answer
  • Help me to do this question plz ​
    7·1 answer
  • Solve for x. In the equation 9x +1/3= x-13
    12·2 answers
  • A car travels 0.75 miles every minute. Explain how you could use proportional reasoning to find how far the car travels in one h
    7·2 answers
  • A scale model of the Great Pyramid of Giza is being installed in a museum. The edges of the square base have lengths of 5.6 feet
    12·1 answer
  • The solution to an inequality is given in interval notation as (2,). What is another way to represent this solution
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!