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
pickupchik [31]
4 years ago
12

2/-8 + (-66 +75) +2^2​

Mathematics
2 answers:
nlexa [21]4 years ago
8 0

Answer:

12.75

Step-by-step explanation:

Lina20 [59]4 years ago
8 0

Answer:

51/4 or 12.75

Step-by-step explanation:

To solve this use the mnemonic device PEMDAS (parenthesis, exponent, multiplication, division, addition, subtraction)

First subtract 66 from 75 (9)

2/-8 + (9) + 2^2

Next find out what 2 squared is (4)

2/-8 + 9 + 4

Next divide 2 and -8 (-1/4)

-1/4 + 9 + 4

Now simplify

51/4

You might be interested in
Sound travels about 750 miles per hour. If you stand in a canyon and sound a horn, you will hear an echo.
cricket20 [7]

Answer:

The sound takes time to go to a point and reflect back to your position.

It means the sound went twice a distance.

=> Suppose it takes about 0.5 seconds to hear the echo, the canyon wall would be [750 x (0.5/3600)]/2 = 0.052 miles

=> Suppose it takes about n seconds to hear the echo, the canyon wall would be [750 x (n/3600)]/2 miles

Hope this helps!

:)

8 0
3 years ago
Use the quadrant system to find the area of the polygon shown
shusha [124]

use the quadrant system to find the area of the polygon shown

44 square units

54 square units

36 square units

52 square units

True 44 square units

3 0
3 years ago
A bag contains rubber bands with lengths that are normally distributed with a mean of 6 cm of length, and a standard deviation o
nirvana33 [79]
Add the all numbers Im not sure that's the answer
6 0
4 years ago
What is the name of a polygon that has four congruent sides and theses angle measures 60,120,60,120?
svetlana [45]

<u>Answer:</u>

The correct answer for this is: rhombus.

<u>Step-by-step explanation:</u>

The name of a polygon that has four congruent sides with the angles measuring 60°, 120°, 60° and 120° is rhombus.

According to the properties of a rhombus, the opposite angles are equal and opposite sides are parallel.

However, the adjacent angles of rhombus are supplementary which means that they add up to 180°.

For example:

60° + 120° = 180°

7 0
3 years ago
Read 2 more answers
What is the length of DE ?
Salsk061 [2.6K]

Answer:

A. 6

Step-by-step explanation:

On triangle ZYX divide each side by 3 to get 4-4-3. Then multiple each side by 2, to get 8-8-6. That would mean DE is 6.

4 0
3 years ago
Other questions:
  • Bill drove 715 miles in 13 hours. At the same rate, how many miles would he drive in 11 hours?
    10·1 answer
  • You were billed $28.50 for additional data usage on your cell phone at a rate of $9 per gigabyte. Three choices are correct ways
    11·2 answers
  • What effect does replacing x with x−4 have on the graph for the function f(x) ?
    13·1 answer
  • Paul spelled 6 out of 16 words correctly on his spelling test. What fraction of the words did he misspell?
    15·2 answers
  • R^2+6r-27 <br> factoring quadratics
    7·1 answer
  • What is the value of [-12]?<br> -13<br> -12<br> 12<br> 13
    15·1 answer
  • The sum of 13 and twice n
    6·1 answer
  • Somebody please help I'm stupid<br> I WILL MARK BRAINLIEST
    5·1 answer
  • What is the equation of a VERTICAL line that goes through the point (1,-4)?
    9·1 answer
  • Need help with parts C and D ​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!