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
Sloan [31]
3 years ago
6

Which of the following expressions are equivalent to -4 + (4+5)

Mathematics
1 answer:
noname [10]3 years ago
7 0

Answer:

A, C, E

Step-by-step explanation:

-4 + (4+5) = 5

A: (4 - 4) + 5 =  5, equivalent

B: (-4 - 4) + 5 = -3, not equivalent

C: -(4-4) + 5 = 5, equivalent

D: -(4) + (-4) + 5 = -3, not equivalent

E: -4 + 4 +5 = 5, equivalent

You might be interested in
Which situation is best represented by the following equation?
tankabanditka [31]

Answer:

B, i might be wrong but i think its B

6 0
4 years ago
Read 2 more answers
Please help, I dont know how to do this​
Mrrafil [7]

Answer:

\frac{y-2}{4}

Step-by-step explanation:

Let's start by factoring everything:

\dfrac{\frac{y^2+y}{y^2-2y}}{\frac{4y+4}{y^2-4y+4}}=

\dfrac{\frac{y(y+1)}{y(y-2)}}{\frac{4(y+1)}{(y-2)^2}}=

Now, you can cancel out some terms:

\dfrac{\frac{y+1}{y-2}}{\frac{4(y+1)}{(y-2)^2}}=

Now, when you divide a fraction by another fraction, that is the same as multiplying the first fraction by the reciprocal of the second one:

\frac{y+1}{y-2}\cdot \frac{(y-2)^2)}{4(y+1)}=

\frac{y-2}{4}

Hope this helps!

4 0
4 years ago
If the average of 5 consecutive whole numbers is 12, what is the largest number?
REY [17]
When I think about average with consecutive numbers, I think that it’s also the median. Let’s check.
If 12 is the median, there’s two numbers that are less than it and two that are more.
The list would be:
10, 11, 12, 13, 14
Let’s check to see if the average is 12. To find average, you have to add all the numbers together and then divide that number by the quantity of numbers in the list.
10+11+12+13+14=60
Now divide it by 5.
60/5=12
So, the largest number is 14.
5 0
4 years ago
In a test of a printed circuit board using a random test pattern, an array of 14 bits is equally likely to be 0 or 1. Assume the
denis-greek [22]

Answer:

The probability that all 14 bits are 1s = 0.000061

Step-by-step explanation:

Probability that a bit is 1 is p = 0.5

Probability that a bit isn't 1 is q = 1 - 0.5 = 0.5

This is a binomial distribution problem

Binomial distribution function is represented by

P(X = x) = ⁿCₓ pˣ qⁿ⁻ˣ

n = total number of sample spaces = 14

x = Number of successes required = 14

p = probability of success = 0.5

q = probability of failure = 0.5

P(X = 14) = ¹⁴C₁₄ (0.5)¹⁴ (0.5)¹⁴⁻¹⁴

P(X = 14) = ¹⁴C₁₄ (0.5)¹⁴ (0.5)⁰

P(X = 14) = 1 (0.000061)(1) = 0.000061

5 0
3 years ago
Find 7% of £40<br> PLEASE SHOW WORKINNG OUT
stepan [7]

Answer:

£2.80

Step-by-step explanation:

7%= 7/100

(7/100)*40=2.8

5 0
3 years ago
Read 2 more answers
Other questions:
  • Decide whether the rates are equivalent.
    13·2 answers
  • 344 centimeters and 94 centimeters what is it width
    15·2 answers
  • Please help me I really need it
    7·2 answers
  • How do you do graph a function
    11·1 answer
  • A rectangle has width w and it’s length is 2 units shorter than 3 times the width. Write an expression representing of the recta
    6·2 answers
  • How much would homeowners insurance for $100,00
    12·1 answer
  • What is the slope of the line y = 3?<br> Answer here<br> ____________
    13·1 answer
  • Suppose a lake contains blue and green algae. The blue algae has an initial mass of 20 kg and doubles its mass every hour. The g
    10·1 answer
  • A scientist uses a submarine to study ocean life she begins at C level which is at an elevation of 0 feet then she travel straig
    9·1 answer
  • In 2005, an area vocational school had an enrollment of 325 men and 123 women. In 2006, there were 149 women. What was the perce
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!