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
vladimir2022 [97]
3 years ago
9

Which of the following is not an identity?

Mathematics
1 answer:
WITCHER [35]3 years ago
8 0

Answer:

B..........................

You might be interested in
Simplify The Expression 16(1/2x)^4
Bond [772]
16(1/2x)^4
Answer: X^4
8 0
3 years ago
What’s the x on this triangle ?
Dmitry [639]

Answer:

x = 5

Step-by-step explanation:

x is the length of the hypotenuse of this triangle.  The length of one of the legs of the triangle is 3" and that of the other leg is 4".

Applying the Pythagorean Theorem:  x^2 = 3^2 + 4^2, or 25

Thus, the length x is +√25, or 5.

x = 5

7 0
2 years ago
The National Cancer Institute estimates that 3.65% of women in their 60s get breast cancer. A mammogram can typically identify c
masha68 [24]

Answer:

39.17% probability that a woman in her 60s who has a positive test actually has breast cancer

Step-by-step explanation:

Bayes Theorem:

Two events, A and B.

P(B|A) = \frac{P(B)*P(A|B)}{P(A)}

In which P(B|A) is the probability of B happening when A has happened and P(A|B) is the probability of A happening when B has happened.

In this question:

Event A: Positive test.

Event B: Having breast cancer.

3.65% of women in their 60s get breast cancer

This means that P(B) = 0.0365

A mammogram can typically identify correctly 85% of cancer cases

This means that P(A|B) = 0.85

Probability of a positive test.

85% of 3.65% and 100-95 = 5% of 100-3.65 = 96.35%. So

P(A) = 0.85*0.0365 + 0.05*0.9635 = 0.0792

What is the probability that a woman in her 60s who has a positive test actually has breast cancer?

P(B|A) = \frac{0.0365*0.85}{0.0792} = 0.3917

39.17% probability that a woman in her 60s who has a positive test actually has breast cancer

7 0
3 years ago
The degree measure of each exterior angle of a regular octagon is represented by the expression 7x-4. Solve for X
Y_Kistochka [10]

Answer:yes

Step-by-step explanation:

8 0
3 years ago
Rick buys 3 CDs and 5 video games. The cost of one video game is $12.00 more than the cost of one CD. If Rick spends $164.00, wh
Dmitry [639]

Step-by-step explanation:

x = price per video game

y = price per CD

164 = 5x + 3y

and then we know

x = y + 12

now we can use this as substitute in the first equation :

164 = 5(y + 12) + 3y = 5y + 60 + 3y = 8y + 60

104 = 8y

y = $13

x = y + 12 = 13 + 12 = $25

so, each CD costs $13.

4 0
3 years ago
Other questions:
  • A popular soft drink is sold in 2-liter (2000 milliliter) bottles. Because of variation in the filling process, bottles have a m
    15·1 answer
  • What else is represented or means the same thing as a sum
    15·2 answers
  • Simplify: 3(2x-y)-(5x+4y-2) <br>Please show steps
    13·2 answers
  • A snail travels 10cm in 4 minutes. At this rate how far does the snail travel in 6 minutes
    9·2 answers
  • Rosa wants to use $25.00 to buy games. The inequality
    10·1 answer
  • How do you write 88% as a fraction
    5·1 answer
  • If an angle does not have a measure of 88°, then the angle is not an acute angle.
    11·1 answer
  • Can someone help me pleasee :)
    14·1 answer
  • I NEED HELP SOLVING THIS MATH PROBLEM.
    6·1 answer
  • Can anyone help me solve this?​
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!