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
svlad2 [7]
3 years ago
9

What is the value of 8(15-4)/4^2-5

Mathematics
1 answer:
kolbaska11 [484]3 years ago
4 0

Answer: 0.5


Step-by-step explanation:

Android calculator accepts the above question via copy and paste, and gives 0.5


The point of this question is to try to discover whether or not you know what the expression means.


Rewriting it as (8(15-4)/(4×4)) - 5 would show that you know the meaning. You can check that by feeding it into the calculator as well.

You might be interested in
A man spends $880 in a month. Out of this 26% goes to his rent. How much is his rent?
melisa1 [442]
26% of $880
= 0.26 x 880
= $228.80

------------------------------------------------------
Answer: Rent = $228.80
------------------------------------------------------
4 0
3 years ago
Find the slope of the line
Serhud [2]

Answer:

Slope is undefined.

Step-by-step explanation:

Slope of 0 is a horizontal line.

Slope of undefined is a vertical line.

Any other slope is something in between.

7 0
3 years ago
Read 2 more answers
Which is 625 written as a power of 5 (exponets) A. 4*5 B.3*5 C.5*3 D.5*4
OleMash [197]
<span>625 written as a power of 5 = 5^4
because
5^4 = (5) * (5) *(5) * (5)  =625

answer is
</span><span>D.5^4</span>
8 0
3 years ago
Read 2 more answers
Does anyone know how to do this?
kolezko [41]

Answer:

  • x = 1
  • y = -7

Step-by-step explanation:

The coefficients of x and y do not have any "nice" relations, so doing this by elimination is just "brute force" with no particular subtlety.

After multiplying by appropriate numbers, you want the coefficient of one of the variables in one equation to be the opposite of the coefficient of the same variable in the other equation. Here, we can get that by multiplying the first equation by 7 and the second equation by 2.

  7(2x +3y = -19)   ⇒   14x +21y = -133

  2(-7x +2y = -21)   ⇒   -14x +4y = -42

Adding these equations with opposite x-coefficients eliminates the x-terms. (That is how the "elimination" method gets its name.)

  (14x +21y) +(-14x +4y) = (-133) +(-42)

  25y = -175 . . . . . . . . simplify

  y = -7 . . . . . . . . . . . divide by 25

Substituting this value into the first equation gives ...

  2x +3(-7) = -19

  2x = 2 . . . . . . . . . add 21

  x = 1 . . . . . . . . . divide by 2

The solution is x = 1, y = -7.

_____

<em>Additional comment</em>

The multipliers used in this process are essentially the coefficients of one of the variables, with one of them negated. Here, we chose the x-coefficients, because negating one of them gives two positive multipliers. We judge it easier to do the arithmetic using positive numbers.

Had we chosen to use the y-coefficients (3 and 2) for our multipliers, we would probably multiply the first equation by 2, and the second equation by -3. That way, the remaining x-coefficient would be positive.

Planning ahead is helpful, but not essential. It can help to avoid errors and make the work easier to do.

3 0
3 years ago
What is 2350million in standard form
julia-pushkina [17]

Answer:

2.35×10^9

2350 million = 2,350,000,000

1 million= 1,000,000

5 0
3 years ago
Read 2 more answers
Other questions:
  • The first-serve percentage of a tennis player in a match is normally distributed with a standard deviation of 4.3%. If a sample
    10·1 answer
  • (03.02 LC) If h(x) = −3x − 10, find h(−3).
    11·1 answer
  • What is the length of XPY in terms of pi?
    14·2 answers
  • What is 4 divided by 556​
    7·1 answer
  • What are the endpoint coordinates for the midsegment of △BCD that is parallel to BC¯¯¯¯¯?
    6·2 answers
  • Line segment AB has endpoints A(0, 3) and B(2, 2). What is the midpoint of<br> line segment AB?
    8·1 answer
  • Can someone help me find the solution to these equations by using substitution
    11·1 answer
  • Which table shows a proportional relationship between x and y?
    15·1 answer
  • Suppose that 60% of the students do homework regularly. It is also known that 80% of students who had been doing homework regula
    12·1 answer
  • Assume that the number of messages input to a communication channel in an Exponential distribution with 7 messages arriving in a
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!