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
fiasKO [112]
3 years ago
11

(-7ab+7a-1) - (ab+8)

Mathematics
1 answer:
slava [35]3 years ago
5 0
Note 1: A constant number (A number without an exponent) will have the degree of 0. Always.Note 2: A variable without a visible exponent obtains an exponent of 1. Ex. x = Note 3: The operation sign before a coefficient/constant indicates if it's positive or negative. If no subtraction (or even addition) sign is in front of a value, it's positive. If a subtraction sign stands in front of a value, the value is negative. If an addition sign stands in front of the value, the value is negative.Note 4: When a number is not standing in front of a variable, it translates to 1 times that variable. Ex. x = 1xNote 5: coefficients contain a number and a variable.
___________________________________________________________
Step 1: Remove the parentheses. [we do this by distributing what's in the parentheses by 1. For the first part (-7ab + 7a-1), you can simply just remove the parentheses because it doesn't affect what's in the parentheses whatsoever. For the second one, (ab +8) however, you distribute -1 which gets us, essentially, different number signs. 

Result: -7ab+7a-1 -ab - 8

Step 2: Order, Sort, and Combine like terms.

View attachment!

Step 3: Solve.

-7ab -ab = -7 - 1, ab = -8ab
+7a
-1 - 8 = -9
Answer: -8ab + 7a - 9

You might be interested in
1) Para que valores reais de x o ponto P (3x -6, 2x +4) pertence ao 4º quadrante?
skelet666 [1.2K]

Answer:

There are no real values of x for point P to belong to the 4 quadrant

Step-by-step explanation:

<u><em>The question in English is</em></u>

To what real values ​​of x does the point P (3x -6, 2x +4) belong to the 4th quadrant?

we know that

A point in the fourth Quadrant has the x-coordinate positive and the y-coordinate negative

we have the point

P (3x-6, 2x+4)

3x-6 > 0 ----> inequality A  ( x-coordinate must be positive)

2x+4 < 0 ---> inequality B ( y-coordinate must be negative)

Solve Inequality A

3x-6 > 0

3x > 6

x > 2  -----> (2,∞)

Solve Inequality B

2x+4 < 0

2x < -4

x < -2 ----> (-∞,-2)

The solution of the system is

(-∞,-2) ∩ (2,∞)

therefore

The system has no solution

There are no real values of x for point P to belong to the 4 quadrant

3 0
4 years ago
the insurance company pays the forecast of 3900 prescriptions claims out of 4500 prescription claims submitted what is the rate
nadya68 [22]

Answer:

x=0.87  or   86.67%

13 prescription claims out of 15 are paid

Step-by-step explanation:

First we organize the data:

prescription claims submitted: 4500

Prescriptions: 3900

The rate of claims paid is calculated using the following formula:

x =\frac{Paid}{Total}

We know that:

Paid = 3900

Total = 4500

So

x =\frac{3900}{4500}

x =\frac{39}{45}

x =\frac{13}{15}

x=0.87

6 0
4 years ago
For the parallelogram, if m&lt;2=4x-17 and m&lt;4=3x-8, find m&lt;1.
kompoz [17]

Answer:

D. 161°

Step-by-step explanation:

m<2 is congruent to m<4, m<1 is congruent to m<3 by properties of a parallelogram

to find x:

4x-17=3x-8

x-17=-8

x=9

m<4=3(9)-8=19

so, m<4=19°

m<2 =19°

to find m<1:

the interior angles of a parallelogram add up to 360°

360-2(19)=2x

2x=360-38

2x=322

x=161°

m<1=161°

7 0
3 years ago
If a student was an undergraduate Business major, what is the probability that the student intends to attend classes full-time i
labwork [276]

Answer:

0.701

Step-by-step explanation:

Probability is the ratio of favorable outcomes to the total number of outcomes. It provides incite to likelihood an event to occur.  Probability is a ratio , so it has no unit. It is sometimes expressed in percentage.

probability that the student intends to attend classes full time in pursuit of an MBA degree = 352/502 = 0.7012.

6 0
3 years ago
How much is the interest on my loan?
kirill [66]

Answer:  The interest is:  " $ 64 .00 " .

_____________

Step-by-step explanation:

_____________

Take note of the formula:

" Ⅰ = Prt " ;

→ that is:

_____________

→   " Ⅰ = P * r * t " ;

_____________

In which:  

_____________

 " Ⅰ = the interest " ;

 " P = the Principal amount of money " ;

 " r = rate " (expressed as the "decimal form" of the percentage) ;

 " t = time " (in years) ;

_____________

We are given:  

_____________

 P = $400 ;

 r = 0.08 ;  

{<u>Note of interest</u>:  That is " 8% " ; since "8 % "  = "(8/100)" ;

                                                                          = "(8 ÷ 100)"

                                                                          = " 0.08 ".}.

 t = 2 ; {that would represent:  " 2 (two) years".}.

_____________

We are to solve for "Ⅰ" ; the amount of "Ⅰnterest" :

→ To solve for "Ⅰ " ; we plug in our given values; and calculate:

_____________

  →  Ⅰ = P * r * t ;

        = 400 * 0.08 * 2 ;

        = 64 .

_____________

  →  Ⅰ = $ 64.00 .

_____________

Hope this is helpful to you!

Best wishes!

_____________

4 0
3 years ago
Other questions:
  • There a 650 visitors to an art gallery on Friday. There are 10% more visitors on Saturday than on Friday. How many visitors are
    12·2 answers
  • you sell bracelets for 2$ each and necklaces for 3$ each at a local flea market. you collected 95$, selling a total of 37 jewelr
    12·1 answer
  • (-4) ( ) = -20 fill in the blank space
    10·1 answer
  • Express the complex number in trigonometric form. 5 - 5i
    6·2 answers
  • Which lengths could be the sides KLM of the triangle, respectively?
    14·2 answers
  • How to set it up and how to do it and what the anweser is
    12·1 answer
  • If Matrix A is 5 x 2 and Matrix B is 3 x 5, then Matrix BA is 5 x 5.
    7·1 answer
  • Total area of the shape.
    10·1 answer
  • 3k-4m - 1<br> 2k+3m12<br><br> Solve the following equation using elimination method
    11·1 answer
  • 20 POINTS!! What would be the first step to solve this equation?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!