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
Lubov Fominskaja [6]
1 year ago
11

For what values of x is the expression below defined? √x+4÷√1-x

Mathematics
2 answers:
wariber [46]1 year ago
4 0

Answer:

x=1

Step-by-step explanation:

jonny [76]1 year ago
4 0
What that person said
You might be interested in
4 4/8 + 3/4 what is the answer
Tema [17]
<span>4 4/8 + 3/4
=4 1/2 + 3/4
=4 2/4 + 3/4
= 5 1/4</span>
6 0
3 years ago
Read 2 more answers
The formula F = ma shows the relationship between force, mass, and acceleration. Solve this formula for a.
mestny [16]

Answer:

a = F/m

Step-by-step explanation:

F = ma <em>divide m by both sides</em>

F/m = a

6 0
3 years ago
Solve the following congruence equations for X a) 8x = 1(mod 13) b) 8x = 4(mod 13) c) 99x = 5(mod 13)
xxMikexx [17]

Answer:

a) 5+13k  where k is integer

b) 20+13k where k is integer

c)12+13k where k is integer

Step-by-step explanation:

(a)

8x \equiv 1 (mod 13) \text{ means } 8x-1=13k.

8x-1=13k

Subtract 13k on both sides:

8x-13k-1=0

Add 1 on both sides:

8x-13k=1

I'm going to use Euclidean Algorithm.

13=8(1)+5

8=5(1)+3

5=3(1)+2

3=2(1)+1

Now backwards through the equations:

3-2=1

3-(5-3)=1

3-5+3=1

(8-5)-5+(8-5)=1

2(8)-3(5)=1

2(8)-3(13-8)=1

5(8)-3(13)=1

So compare this to:

8x-13k=1

We see that x is 5 while k is 3.

Anyways 5 is a solution or 5+13k is a solution where k is an integer.

b)

8x \equiv 4 (mod 13)

8x-4=13k

Subtract 13k on both sides:

8x-13k-4=0

Add 4 on both sides:

8x-13k=4

We got this from above:

5(8)-3(13)=1

If we multiply both sides by 4 we get:

8(20)-13(12)=4

So x=20 and 20+13k is also a solution where k is an integer.

c)

[tex]99x \equiv 5 (mod 13)[/tex

99x-5=13k

Subtract 13k on both sides:

99x-13k-5=0

Add 5 on both sides:

99x-13k=5

Using Euclidean Algorithm:

99=13(7)+8

13=8(1)+5

Go back through the equations:

13-8=5

13-(99-13(7))=5

8(13)-99=5

99(-1)+8(13)=5

Compare this to 99x-13k=5 and see that x=-1 or -1+13=12 or 12+13k is a solution where k is an integer.

8 0
2 years ago
Read 2 more answers
Simplify. e^(in x)=, e^(in 5)=, e^(in 3x)=
Pepsi [2]

Answer:

Step-by-step explanation:

e^ lnx  = x

e^ ln5 = 5

e^ ln 3x = 3x

I think you get the idea... e is an inverse operation to ln  :o

5 0
3 years ago
A company wants to select 1 project from a set of 4 possible projects. Which of the following constraints ensures that only 1 wi
Elza [17]

Given:

A company wants to select 1 project from a set of 4 possible projects.

Consider the options are:

a. X_1+X_2+X_3+X_4=1

b. X_1+X_2+X_3+X_4\leq 1

c. X_1+X_2+X_3+X_4\geq 1

d. X_1+X_2+X_3+X_4\geq 0

To find:

The constraints that ensures only 1 will be selected.

Solution:

It is given that the company wants to select 1 project from a set of 4 possible projects. It means the sum of selected projects must be equal to 1.

X_1+X_2+X_3+X_4=1

Therefore, the correct option is (a).

8 0
3 years ago
Other questions:
  • <img src="https://tex.z-dn.net/?f=72%20%5Cdiv%20what%20%5C%3A%20%20%3D%203" id="TexFormula1" title="72 \div what \: = 3" alt="7
    7·2 answers
  • What’s the correct answer?
    6·1 answer
  • Please help.... both pictures are the questions
    12·1 answer
  • Зу = - 2x + 12 how do you graph this equation ​
    7·1 answer
  • Please help me thank you
    8·1 answer
  • What is question a????
    9·1 answer
  • A recipe for cooking rice indicates that 14 cups of boiling water are needed for 8 cups of rice.
    11·1 answer
  • Amanda can carry 940 grams of potatoes. How many kilograms can she carry?
    7·1 answer
  • Write a pair of equivalent fractions for 2/5?.​
    15·1 answer
  • Nick wants to save up enough money to go to Carowinds for the day with a group of his friends. He already has $50 saved up and p
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!