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
Sergeu [11.5K]
3 years ago
13

Evaluate the expression. 1/2 - 4 (1/2 + 1)^2

Mathematics
2 answers:
insens350 [35]3 years ago
6 0

Answer:

D. -17/2

Step-by-step explanation:

1/2 - 4 (1/2 + 1)^2

First we evaluate what is inside the parentheses

1/2 - 4  (3/2) ^2

Now we square what is inside the parentheses

1/2 - 4(9/4)

Now multiply

1/2 -9

Get a common denominator  9 = 9 *2/2 = 18/2

1/2 - 18/2

-17/2


Sidana [21]3 years ago
5 0

Use PEMDAS:

P Parentheses first

E Exponents (ie Powers and Square Roots, etc.)

MD Multiplication and Division (left-to-right)

AS Addition and Subtraction (left-to-right)

--------------------------------------------------------------------------------------

\dfrac{1}{2}-4\left(\dfrac{1}{2}+1\right)^2=\dfrac{1}{2}-4\left(1\dfrac{1}{2}\right)^2=\dfrac{1}{2}-4\left(\dfrac{1\cdot2+1}{2}\right)^2\\\\=\dfrac{1}{2}-4\left(\dfrac{3}{2}\right)^2=\dfrac{1}{2}-4\cdot\dfrac{3^2}{2^2}=\dfrac{1}{2}-4\cdot\dfrac{9}{4}=\dfrac{1}{2}-1\cdot\dfrac{9}{1}\\\\=\dfrac{1}{2}-9=\boxed{-8\dfrac{1}{2}=-\dfrac{8\cdot2+1}{2}=\boxed{-\dfrac{17}{2}}}\to\boxed{D.}

You might be interested in
You start at 1, 4. You move left five units and down seven units. where do you end?
ololo11 [35]
-4,3 i think that’s the answer
6 0
3 years ago
Read 2 more answers
I NEED HELP ASAP!!!!!!!!!!!!!!!!
Snowcat [4.5K]

Answer:

1/6

Step-by-step explanation:

If you divide the fractions to decimals 1/6 equals .16 which is closest to 0

7 0
2 years ago
Read 2 more answers
Carla is wrapping a present in the box shown. How much wrapping paper does she need, not including overlap?
larisa [96]
2(area of s) + 2(area of f) + 2(area of ff) if s = side and f= opposite faces and ff = opposite faces.
2(4x3) + 2(3x10) + 2(4x10)=
24+60+80=
164 in squared
4 0
3 years ago
Read 2 more answers
Use the results about power series proved in this section to find values for
rewona [7]
Yes they did i only want my points

7 0
3 years ago
What is 3/4 - (-2/3) as an improper fraction?
iragen [17]

Answer:

17/12

Step-by-step explanation:

See picture.

I wrote your poblem as an additoin problem because 2 negitive numbers would make it possitve.

Example:

1 - (-2) = 1 + 2

6 0
3 years ago
Other questions:
  • PLEASE ANSWER ASAP IF ANSWERED WITHIN 30 MINUTES YOU WILL RECEIVE BRAINLIEST
    15·2 answers
  • What is 107,609 divided by 72
    9·2 answers
  • at a farm the ratio of cows to horses was 10:3 if there were 20 cows at the farm how many horses were there?
    10·2 answers
  • Round 1.0649 to the nearest thousandth
    15·2 answers
  • Hurry pls!!! PLS ANSWER THE ATTACHMENT BELOW!!!
    6·2 answers
  • Anyone know how to do this??
    13·1 answer
  • Can someone help me please ?????
    8·1 answer
  • 0, 13, 26, 39 is arithmetic or geometric
    12·2 answers
  • X2 - 3√3 + 6 = 0 solve by factorisation method
    5·1 answer
  • Rewrite the polynomial in the form ax^2+bx+c and then identify the values of a, b, and c
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!