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
OlgaM077 [116]
3 years ago
7

I need help with number 12

Mathematics
2 answers:
Genrish500 [490]3 years ago
5 0

Answer:

150

Step-by-step explanation:

-(-4)^2 + 7(-2)^4 - 2(-3)^3

-16 + 112 - 2(-27)

; -16 + 112 + 54

;150

Olin [163]3 years ago
5 0

Answer:

150

Step-by-step explanation:

Substitute the given values for a, b and c into the expression

- (- 4)² + 7(-2)^{4} - 2(-3)^{3}

= - 16 + (7 × 16) -2(27)

= - 16 + 112 + 54

= - 16 + 166

= 150

You might be interested in
Steve Ballmer, the current CEO of Microsoft, used to be the manager of his college football team. Among his duties, he had to be
lutik1710 [3]

9514 1404 393

Answer:

  a.  x + 4y = 160

  b.  160

  c.  40

Step-by-step explanation:

a. We can define the variables as ...

  x = number of 1/2-liter bottles

  y = number of 2-liter bottles

For the total number of liters to be 80, we require

  1/2x + 2y = 80

We can multiply this by 2 to eliminate the fraction.

  x + 4y = 160

__

b. The x-intercept is 160. It is the number of 1/2-liter bottles required when no 2-liter bottles are used.

__

c. The y-intercept is 40. It is the number of 2-liter bottles required when no 1/2-liter bottles are used.

7 0
3 years ago
Name that angle pair
Verizon [17]

Answer:

Can you figure out the answer?

5 0
3 years ago
Help fast!!!! thank you.
Oliga [24]
WW    WL
LW      LL            it that order

8 0
3 years ago
Read 2 more answers
a discounted concert ticket costs $14.50 less than the original price p.You pay $53 for a discounted ticket.Write an equation th
Ahat [919]

Answer:

$53.00 + $14.50

= 67.50

Make sure to leave a good review if it helped you

-Adan


7 0
3 years ago
10. When Raphael solved the system below by using the method of elimination, he changed the second equation
kirill115 [55]

Answer:

e we'll

Step-by-step explanation:

second equation

to –8x – 2y =-2. What property justifies this manipulation?

8x + 3y = 7

4x + y =1

4 0
3 years ago
Other questions:
  • the width of a rectangle is 5 meters less than it’s length. The area of the rectangle is 84m^2. Find the length and width of the
    5·1 answer
  • The sum of two numbers is 83. If twice the larger number is added to three times the smaller number, the result is 197. Find the
    6·1 answer
  • Find the distance between points (-1,-4) and (2,2)
    8·1 answer
  • What is the domain of the relation graphed below?
    11·1 answer
  • Sherry was in charge of distributing 25 food items
    12·1 answer
  • Find the real solutions of the following equation.<br> If K= x + 1/x-1 <br> and k^2- k=20, find x.
    15·1 answer
  • An employee at a health club takes home an after-tax salary of $950 every two weeks. If the tax rate is 8%, how much does the em
    6·1 answer
  • May you guys help me with this question. i'm not good at percentage &lt;:3
    12·1 answer
  • 3 lawns in 9 hours.what was the rate of mowing in hours per lawn
    15·2 answers
  • PLEASE HELP WITH BOTH QUESTIONS WITH STEPS DUE BY MIDNIGHT
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!