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
Mama L [17]
3 years ago
15

Please Help me! 20 points

Mathematics
1 answer:
malfutka [58]3 years ago
6 0

Answer:

-9/4 ÷ (-2/3)

Step-by-step explanation:

-(2 1/4) ➡ -9/4

-2/3 ➡ (again a reciprocal needed) -3/2 since we need the result to be positive both expression should remain negative so the answer is -9/4 ÷ -2/3

You might be interested in
You buy 3 new shirts for $17 each and 5 new pairs of pants for $12 each. You give the cashier $110. Which of the following is a
kvv77 [185]

Answer:No change

Step-by-step explanation:

3*17=51 + 5*12=60

So 51+60=111. So in reality you would still need to pay $1.

3 0
2 years ago
Read 2 more answers
1. Add or Subtract. Show your work
Sav [38]

QUESTION 1a.

We want to add

( - 2 {x}^{2}  - 4x + 13) + (12 {x}^{2}  + 2x - 25)

We group similar terms to get

- 2 {x}^{2}  + 12 {x}^{2}- 4x + 2x   - 25 + 13

Simplify:

- 10{x}^{2} - 2x  -12

QUESTION 1b.

The given function is:

(7x^2+4x-26)-(-7x^2-3x+15)

Expand the parenthesis to obtain,

7x^2+4x-26 + 7x^2 + 3x - 15

Group similar terms,

7x^2+7 {x}^{2}  + 4x + 3x-26  - 15

Simplify:

14{x}^{2}  + 7x-41

QUESTION 2

The given function is

f(n)=n^2-6n-16

The zeros of this function is given by;

n^2-6n-16 = 0

Split the middle term.

n^2-8n + 2n-16 = 0

Factor;

n(n - 8) + 2(n - 8) = 0

(n - 8)(n + 2) = 0

n - 8 = 0 \: or \: n + 2 = 0

n  = 8 \: or \: n =  - 2

4 0
3 years ago
Identify the terms and like terms in the expression - x - 9x*2 + 12x*2 + 7
alexgriva [62]
The expression - x - 9x^2 + 12x^2 + 7 has 4 terms:
-x, -9x^2, 12x^2, 7

Like terms are:
-9x^2, 12x^2
4 0
3 years ago
Stacy earned $129.55 last week. Dave earned $127.95 last week. Carlos earned $127.05
noname [10]

Answer:

The total earnings is $384.55

The least earnings is

$127.05

$127.95

$129.55

5 0
3 years ago
A carpenter is putting a skylight in a roof. If the roof measures 10 + 8 by 8 + 6 and the skylight measures + 5 by 3 + 4, what i
Usimov [2.4K]

Answer:

The area is: 77x^2 + 105x + 28, option b.

Step-by-step explanation:

Rectangular area:

The area of a rectangular space is given bt the multiplication of its measures.

Area of the roof:

Dimensions of 10x + 8 and 8x + 6. So

A_{r} = (10x+8)(8x+6) = 80x^2 + 60x + 64x + 48 = 80x^2 + 124x + 48

Area of the skylight:

Dimensions of x + 5 and 3x + 4. So

A_{s} = (x+5)(3x+4) = 3x^2+4x+15x+20 = 3x^2 + 19x + 20

What is the area of the remaining roof after the skylight is built?

Total subtracted by the skylight, which is a subtraction of a polynomial, in which we subtract the like terms. So

A_{r} - A_{s} = 80x^2 + 124x + 48 - (3x^2 + 19x + 20) = 80x^2 - 3x^2 + 124x - 19x + 48 - 20 = 77x^2 + 105x + 28

The area is: 77x^2 + 105x + 28, option b.

3 0
2 years ago
Other questions:
  • 2000 dollars and grows at 4.5% every year. what would be the money after 13 years
    10·1 answer
  • Simplify 4 times square root 24 minus 4 square root 8 plus square root of 98.
    10·1 answer
  • tom paid $1,166.40 for a new refrigerator, including $86.40 tax. What was the price of the refrigerator?
    10·1 answer
  • Visual encoding is the encoding of____________
    6·2 answers
  • X-4y=16 show me how to get y and x.
    6·1 answer
  • Mary has 3 rolls of wallpaper. Each roll can cover 127.8 sq ft. If Mary uses all 3 rolls of wallpaper how much sq ft would it co
    6·1 answer
  • 3, 2, 16, 4, 26, 8, 6,3<br> How many dogs were in the Ridgeway Dogs show?
    10·1 answer
  • How many cups of yogurt would 5 people get if they equally shared 3/4 cups of yougurt
    10·1 answer
  • Answer asap plssssssss Need help​
    13·1 answer
  • If P(A) = 1/10 , find P(A)
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!